Contract administration

Applications for Payment, and the Notices That Follow

Application nine went in five weeks ago and nothing has come back. Whether a valid pay less notice ever existed, and what falls due if it did not.
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Nothing came back, and that is the important part

Application nine went out on the last Friday of the month, the way the eight before it did: a PDF to the quantity surveyor's address, a marked-up drawing showing the risers that had been completed since the last one, and a summary sheet with a cumulative figure, the previous cumulative figure, and the difference between them. No acknowledgement. No payment notice. No certificate. No pay less notice. No remittance advice. Then, three weeks later, a phone call in which somebody agreeable explains that they do not agree the valuation, that there is an issue with two of the risers, and that it will all get sorted at the end.

The instinct is to argue about the risers, and it is the wrong instinct, because it accepts the payer's framing of what the disagreement is. Two entirely separate arguments are available in that phone call. One is about what the work was worth: a matter of measurement and opinion, and it will take months. The other is about whether anybody served a document by a date — a matter of fact, usually answerable in an afternoon out of your own sent items, and on a commercial contract in England, Wales or Northern Ireland it decides what has to be paid this month irrespective of how the first argument eventually comes out. So the job in front of you is a reconstruction rather than a valuation: what date did the payment become due, what was the final date for payment, what was served, by whom, to whom, at what time, and did it say the two things the statute requires it to say.

Three dates, and the one you have been watching is the wrong one

The date you sent the application has, on most sub-contracts, no direct statutory significance at all. It matters because the contract almost certainly requires the application to arrive inside a window, and missing that window can cost a month. But it is not the date the notice deadlines are measured from. Those hang off the due date, which the contract fixes independently, and which on a monthly cycle is very often a stated calendar date regardless of when your paperwork arrived. Everything below assumes a commercial contract; on a contract with a residential occupier section 106 lifts the whole machine off, and the stage-payments guide next door covers what has to be written down by hand instead.

Section 110 of the Housing Grants, Construction and Regeneration Act 1996 requires a construction contract to contain an adequate mechanism for determining what payments become due and when, and to provide for a final date for payment in relation to any sum that becomes due. The gap between those two dates is left to the parties; thirty, forty-five and sixty days all exist in the market. What the 2009 amendments added is a limit on how clever the mechanism may be: a due date conditional on obligations under a different contract, or on somebody's decision about one, is not adequate, and neither is one that depends on the payer serving a notice about what is due. In Rochford Construction Ltd v Kilhan Construction Ltd the Technology and Construction Court doubted, in passing, whether a final date can validly be pegged to receipt of a VAT invoice rather than to a period of days after the due date — not the decision in the case, but the reason a finance department asking you to re-issue an invoice does not move the clock.

Two deadlines then attach to those dates, and they run in opposite directions. The payer's payment notice, under section 110A, is due not later than five days after the payment due date. The pay less notice, under section 111, is due not later than a prescribed period before the final date for payment — a period the contract states, and the Scheme supplies where it does not. One is measured forwards from the due date and the other backwards from the final date, so lengthening the payment terms lengthens the payer's opportunity to serve a pay less notice as well: one of the quieter reasons long terms are worth arguing about at tender.

Where the contract supplies none of this, the Scheme for Construction Contracts (England and Wales) Regulations 1998, as amended in 2011, supplies it whether the parties like the result or not: a due date derived from the relevant period and the making of a claim, a final date for payment seventeen days after the due date, and a pay less notice due not later than seven days before that final date. Scotland runs its own Scheme regulations. Work out once whether your contract is operating its own mechanism or has quietly imported the Scheme's, because they produce different dates and only one set counts.

The dates one monthly cycle turns on, what fixes each of them, and what is lost by missing it
The dateWhat fixes itWhat happens if it slips
The date the application is servedThe sub-contract's application window — often a stated day of the month, or a stated number of days before the due dateA late application is commonly treated as an application for the following cycle, which costs a month of cash rather than the money itself
The payment due dateThe contract's own mechanism; the Scheme where the contract has none. Frequently a fixed calendar date, independent of when you appliedNothing slips. It is the anchor every other deadline on this table is measured from
The payer's payment noticeNot later than five days after the payment due date, under section 110AThe payee's own notice becomes available under section 110B, and on many forms the application already served does that job automatically
The payee's notice in defaultServed after the payer's five days have run out, if the application was not already treated as this noticeServing it late postpones the final date for payment by the days of delay, which delays your own money
The pay less noticeNot later than the period the contract prescribes before the final date for payment; seven days under the SchemeThe notified sum becomes payable in full at the final date, whatever anyone thinks the work was worth
The final date for paymentA period after the due date, fixed by the contract; seventeen days under the SchemeThe debt falls due, statutory interest starts, and the right to suspend performance becomes available
The dates one monthly cycle turns on, what fixes each of them, and what is lost by missing it

An application only starts the clock if it is one

Before any of that machinery helps, the document has to be the thing the contract asked for, and all four of its attributes are decided by the sub-contract rather than by custom. Served inside the window. Sent to the person or address the contract names, which on a job running a payment portal means the portal rather than the surveyor who actually reads it. In the specified form, if one is specified. And stating the sum considered due together with the basis on which that sum is calculated. The last of those is treated as boilerplate and is not: a bare cumulative total is a number rather than a basis, whereas a schedule of measured quantities against the contract's own rates, the variations claimed with their references, materials on site, and retention and previous payments deducted, is a basis — and it is what lets one document do the second job the statute has waiting for it.

That second job is the useful one. Where a contract requires or permits the payee to apply before the due date, section 110B treats that application as the payee's notice in default if the payer serves no payment notice of his own. So on most sub-contract forms you need write nothing further when the payer goes silent — the application already sent has become the notice that sets the notified sum. That holds only if the document was valid, unambiguous and identifiable as an application rather than as an update, which is why it is worth naming it as one on its face, numbering it, and sending it the same way from the same address every month. A payer arguing that your document was a draft or a duplicate is arguing the only argument left to him.

Payers who want to compress an application rarely dispute the rates. They dispute the extent, and the assertion arrives as a percentage: sixty per cent applied for on a package forty per cent complete. A percentage is an opinion until somebody measures something. The quickest way to convert it is to work from your own contract rather than from the market — divide the sub-contract sum by the total quantity the package covers, which gives a rate per unit of area belonging to this contract and to no other, then apply that rate to the area genuinely finished. It will not settle a re-measure, but it turns a conversation about adjectives into one about a quantity two people can walk out and count.

Divide the sub-contract sum by the whole area of your package to recover the rate your own contract implies — not a market rate, and not comparable to anyone else's job — then hold that rate against the area actually complete. It is the fastest independent check on a percentage-complete assertion made over the telephone.

The total quoted or estimated cost of the project.

The total square footage the cost covers.

Cost per square foot

15 $ / sq ft

High confidence
Total cost
$15,000
Area
1,000 sq ft

What this calculation does not cover

  • Rate per square foot is not constant with job size, because a large part of any job does not scale with area. Mobilization, setup and teardown, a dumpster, permits and single fixed items like one kitchen or one bathroom cost much the same over 300 sq ft as over 1,500. A small job's rate therefore reads high and a large one's reads low even when both are priced fairly, and comparing across sizes on rate alone penalizes the small job.
  • Floor area is not the surface being worked. Painting, drywall, insulation and ductwork follow wall and ceiling area, so a room with 12 ft ceilings or a space open to a second floor costs well above the rate the same footprint produces at 8 ft. Two quotes over identical square footage can be honestly far apart on this figure for that reason alone.

The extras go in the application or they do not go in the month

Variations instructed but not yet agreed are where most subcontractors quietly hand a month back. The reasoning is understandable — the valuation is not settled, so it feels premature to put a figure against it, and the line goes into the application as a description with the word claimed and no number. That is a line that cannot become part of a notified sum. If the payer serves nothing, the sum that becomes payable by default is the sum your document stated, and an unpriced line stated nothing.

So price it, apply for it, and mark it claimed rather than agreed. Value it on the basis the sub-contract gives for a change — the work itself, the percentage addition for overheads and profit the change provisions fix, and any lump-sum administration charge the form allows — rather than on what you hope to negotiate; which valuation basis applies, and what makes an instruction an instruction at all, are settled on this site's guides to instructing and to pricing a variation. Then carry the same line forward every month at the same figure until it is either certified or written down in a pay less notice. Both outcomes are useful: certification agrees it, and a pay less notice that reduces it commits the payer to a basis of calculation in writing, which is a great deal more than the phone call gave you and is the material a later true-value argument gets built out of.

Build the figure the way the sub-contract's change provisions build it — the added work, the percentage addition the form already fixes for overheads and profit, and any flat charge for administering the change — so the line in the application carries a number and a stated basis rather than the word claimed on its own.

Your direct material + labor cost for the added scope.

Markup applied to the additional work, same as your normal project markup.

A flat fee covering paperwork, re-scheduling, and coordination overhead.

Total change order cost

$2,400

High confidence
Markup amount
$300

What this calculation does not cover

  • Markup lands on the added work cost alone — the administrative fee is added after it and is never marked up, so a contract that allows markup on the processing charge will settle slightly above this figure.
  • One percentage covers the whole variation, with no split between overhead and profit and no separate rate for subcontracted work; where a sub's price already carries its own uplift, no second tier is stacked on top of it here.
  • Time is absent from the arithmetic. Nothing is priced for extra days on site, extended preliminaries, or the disruption to work already sequenced around the original scope, which on a mid-project change is often the larger number.
  • The flat fee is counted once per run. Several small variations that each trigger their own charge, or one order bundling unrelated items, have to be worked through individually rather than as a single lump.
  • Deductive changes have no route in: the added work cost cannot be taken below zero, so a credit for scope removed has to be handled as its own line away from this page.
  • The added work cost is entered as one figure, so nothing distinguishes short-notice material pricing, restocking on cancelled orders, or remedial work to undo what was already built — those belong inside the number you type, or they are missing from the total.

Two notices from the payer, and only one of them lets him pay less

The two notices are constantly confused, including by the people serving them, and the difference decides who owns the number. A payment notice under section 110A is the payer's statement of what he considers due at the due date. Serve one in time and the notified sum is his figure, not yours; your application has done its work and been superseded, and there is no need for him to serve anything else. Serve nothing, and the payee's notice — or, on most forms, the application itself — sets the notified sum at your figure. The pay less notice under section 111 is the separate instrument that lets a payer pay less than whatever the notified sum turned out to be, and it is the only instrument that does.

Both notices have to say the same two things: the sum the server considers due, and the basis on which that sum is calculated. A pay less notice states the sum considered due at the date it is served, which need not be the date the payment notice spoke to — a fortnight of work can have happened in between. Zero is a permissible sum, and a notice saying nothing is due with a stated basis for that defeats the application entirely. What is not a notice is an email disagreeing without a figure, a spreadsheet with a lower total and no explanation of how it was reached, or a certificate issued days late by somebody who thought the deadline was the final date for payment rather than the period before it.

Read the basis requirement strictly on documents you receive. It does not oblige the payer to be right — a notice is not invalid for containing a valuation you think is wrong, which is what the true-value argument is for — but it does oblige him to show his working far enough that you can see what has been deducted and why. A notice reducing a cumulative application by one lump sum described as contra-charges, with no allocation, has arguably stated no basis at all; and even where it survives, it has handed you a written position to answer instead of a phone call to remember.

Where a third party administers the contract the same discipline sits in the form rather than in the statute. AIA Document A201 requires the architect either to certify the amount properly due or to notify the contractor of the reasons for withholding certification, with Section 9.5 listing the grounds. NEC4 puts it in the assessment cycle, and added a provision under which the Contractor's own application stands as the amount due where the Project Manager makes no assessment. FIDIC runs on a Statement under Sub-Clause 14.3 answered by an Interim Payment Certificate under Sub-Clause 14.6. The payee's job is the same on all of them: know which document is due, when, and whether it arrived.

The four documents one monthly cycle can contain, and what each has to contain to work
DocumentWho serves itWhat it must stateWhat it does if valid
The application for paymentThe payee, inside the contract's window, to the named addressThe sum considered due and the basis of its calculation, in the form the contract specifiesStarts the cycle, and on most forms stands as the payee's default notice if the payer serves nothing
The payment notice, section 110AThe payer, or the person the contract specifies, not later than five days after the due dateThe sum the payer considers due at the due date and the basis of its calculation, which may be zeroSets the notified sum at the payer's figure and displaces the application for that cycle
The payee's notice in default, section 110BThe payee, after the payer's five days have expiredThe same two things the application had to stateSets the notified sum at the payee's figure; served late, it pushes the final date for payment back by the days of delay
The pay less notice, section 111The payer, not later than the prescribed period before the final date for paymentThe sum considered due at the date of the notice and the basis on which that sum is calculatedReduces the amount payable at the final date from the notified sum to the sum the notice states
The four documents one monthly cycle can contain, and what each has to contain to work

Reconstructing the month from your own sent items

This is the afternoon's work, done from your own records rather than from anything the payer supplies, and worth doing before the phone call is returned, because the answer changes what the call is about.

Service is the part most often got wrong on both sides. Most sub-contracts carry a notices clause specifying permitted methods, addresses and deemed times of receipt, and it usually predates the way the job is actually run — recorded delivery to a registered office, while everything real happens by email to a surveyor. A notice served by a method the contract does not permit may still be effective where that clause is permissive, and may not be where it is exclusive. Deemed receipt cuts both ways: a document emailed at four minutes to midnight on the deadline day is often in time, and one emailed after a deemed cut-off can be a day late even though everybody read it that evening. None of it is arguable from memory, which is the point of writing it down.

Be honest about what you find, including when it goes against you. A pay less notice that is valid, in time and properly served ends this line of enquiry, and what is left is a valuation argument to be had on its merits. Discovering that early is worth as much as discovering the opposite: it stops a firm spending three weeks and a consultant's fee on a point answered in the second column of the sheet.

  1. Write down the payment due date for the cycle in question, taken from the contract's mechanism rather than from a remittance advice, and the final date for payment that follows from it.
  2. Find the application in your own sent items and record the date, the exact time, the recipient address and whether it stated a sum and a basis; then test it against the contract's window and its named address or portal. If it was late, or went somewhere the contract does not name, read what the contract says happens next before going any further.
  3. Add five days to the due date and search the whole of that window — inbox, spam, the portal, and the site manager's phone — for anything from the payer that states a sum and a basis, whatever it calls itself.
  4. If nothing is there, confirm whether the contract treats your application as the payee's notice in default, or whether a separate notice was required and never served.
  5. Count the prescribed period back from the final date for payment and search that window for a pay less notice, again by content rather than by title.
  6. For anything you find, test it against the contract's notices clause: permitted method, correct address, correct sender, and the deemed time of receipt for that method.
  7. Write the result as one line — the notified sum for the cycle, the document that set it, and whether it was reduced by a valid pay less notice — and keep that line with the job file.

The sum he considers due is a valuation, not a reimbursement

One deduction turns up often enough in pay less notices to be worth naming separately, because it is neither a dispute about extent nor a set-off. It is a payer valuing what the work cost you rather than what the work is worth under the contract. An interim valuation values work properly executed at the contract's own rates, and those rates carry the overhead and profit that keep a firm in existence; they are not a schedule of your outlay. A notice that pays the material invoices and the wages and stops there has funded the job and contributed nothing toward the office, the vans, the insurance renewals or the year's profit — and it looks generous on a spreadsheet, because every pound actually spent is on it.

The check takes a few minutes. Rebuild the period's application from its parts — material bought into the works, labour executed, and the markup the contract rates carry over both — then read the payer's stated sum against the two totals it produces. A figure landing on the cost subtotal rather than on the priced value is the signature of a cost-based valuation, and it is a specific thing to write back about with a specific answer: the contract's rates, and the measured quantities they apply to. Two neighbouring lines are worth stating separately in the same schedule rather than folding into one figure — unfixed materials on site, valued on their own conditions and attracting retention or not depending on the form, which the retention guide sets out; and time-related preliminaries, which accrue with the calendar rather than with output and are the one line that legitimately moves in a month when the measured work did not.

Enter the period's material and labour and the markup the contract rates carry, and compare the two figures it returns — the cost subtotal and the priced total — against the sum the pay less notice says is due. A number sitting on the cost subtotal is a payer reimbursing you rather than valuing the work.

Your direct cost for materials on this job.

Your direct labor cost for this job (wages, not billed rate).

The percentage added on top of costs to cover overhead and profit.

Total price to charge

$9,600

High confidence
Cost subtotal
$8,000
Markup amount
$1,600
Gross margin on the price
16.67 %

What this calculation does not cover

  • Only two cost lines feed the subtotal — materials and labor. Permits, equipment and tool rental, dumpster and disposal fees, subcontractor invoices, insurance, fuel and supervision are not inputs, so anything you have not already buried inside those two figures is neither marked up nor billed.
  • Materials and labor are marked up at one identical rate, because the percentage is applied once to their combined subtotal. If you price material at one percentage and labor at another — a common split — price the two separately and add the results, since a single blended figure here will not reproduce that.
  • The markup amount in the breakdown is gross, not profit: it is the one figure that has to carry overhead and profit together, and there is no overhead input to separate them. Office costs, vehicles, estimating time and idle days come out of that same amount before anything is left over.
  • The gross margin row is the same money expressed against the price instead of against the cost, and it is always the smaller percentage of the two — a 20 per cent markup is a 16.7 per cent margin. It is shown because the two are routinely used interchangeably and are not equal; it is still gross, so overhead has not been taken out of it, and it is not a net profit figure.
  • Nothing is added after the markup — the total is exactly the subtotal multiplied by one plus your percentage. Sales tax, VAT or GST, permit fees passed through to the client, and card or financing charges all sit outside it, so the number is a price to quote rather than a finished invoice.
  • The costs you enter are treated as final and already known. There is no waste allowance and no contingency term, so if supplier prices move between quote and purchase or the hours run long, the overrun comes out of the markup instead of being added to the price.
  • Each cost line accepts up to 500,000 and the markup up to 200 per cent, which caps how large a single job this will price without splitting it. The currency is a label only: the answer comes back in whatever currency you typed the costs in, with no conversion and no rounding to a tidy quotable figure.

The notified sum is payable whether or not anybody thinks it is right

This is the provision the whole page exists for. Section 111 requires the payer to pay the notified sum on or before the final date for payment, and the only thing that reduces that obligation is a pay less notice given in time. Not a disagreement, not a meeting in the diary, not an assurance that it will be sorted at the end, and not the fact that the sum is, on any sensible view, too high. If no valid notice was served, the sum your document notified is the sum payable, and it is payable now.

Section 108 lets either party refer a dispute to adjudication at any time, and a referral on this narrow point — a sum was notified, no notice was served, the final date has passed — is the fastest remedy in the industry. The trade calls it a smash-and-grab, a name that flatters the payer's version of events. What it decides is deliberately small: that the machinery produced a sum and that the payer did not operate the machinery which would have reduced it. It decides nothing about what the work was worth.

The sequencing was settled by the Court of Appeal in S&T (UK) Ltd v Grove Developments Ltd. A payer who has missed his notices must first pay the notified sum; having paid it, he may then refer the true value of the same interim payment to a second adjudication and recover any overpayment. So this is a cash-flow instrument rather than a windfall. It moves the money to the party who did the work while the argument about its value happens afterwards, in an order that puts the cost of the delay on whoever missed the deadline — which is what the statute was written to do, and why the right response to a missed notice is to enforce it rather than to feel opportunistic about it. The corollary is that an application inflated in the hope a notice will be missed gets corrected in the true-value adjudication that follows, with costs attached, and corrodes the credibility of every application served after it.

Two statutory limits belong in the same breath. Section 111 lifts the obligation to pay the notified sum where the contract itself says the payer need not pay on the payee's insolvency and the payee becomes insolvent after the pay less period has expired — both limbs, so a contract silent on insolvency does not get the exception. Section 113 makes pay-when-paid ineffective except where a party further up the chain has become insolvent — so a payer explaining that the employer has not paid him is, in almost every case, describing his own problem rather than a defence.

Interest is the part almost nobody claims, usually out of a wish not to sour the relationship, and it is worth knowing what is being given up. Where a construction contract between businesses contains no substantial contractual remedy for late payment, the Late Payment of Commercial Debts (Interest) Act 1998 implies a right to statutory interest at eight per cent above the Bank of England base rate from the day after the debt fell due, together with a fixed sum toward recovery costs in three bands by the size of the debt and reasonable further costs beyond it. A contractual rate displaces the statutory one only if it is itself a substantial remedy, which a token rate written into a sub-contract is not. Put the position in writing on the day the final date passes: a claim raised in month twenty about month nine reads as an afterthought, and a contemporaneous note reads as a record.

Stopping work is a right with a procedure and a price

Where the notified sum is not paid by the final date, section 112 gives the payee a right to suspend performance of any or all of its obligations, exercisable on not less than seven days' written notice to the payer stating the ground relied on. The right ends when payment is made. As amended in 2009 it carries two consequences that make it usable rather than merely dramatic: the suspending party is entitled to a reasonable amount in respect of the costs and expenses reasonably incurred as a result of exercising the right, and the time for completion is extended by the period of suspension together with the time reasonably taken to get going again. Both of those have to be claimed, and neither is claimed by stopping work quietly.

It is a strong lever precisely because it is early: there is still a programme to protect, a following trade waiting on you, and an employer who will hear about it. Its value decays every week the package gets nearer to finishing — and the same firm's retention balance, falling due two years later, has no lever behind it at all, which the retention guide next door sets out.

It is also a decision with a number attached, and the number is mostly labour. A gang stood down is not free: standing time through the notice week, the cost of moving them to a job that was not ready for them, and the cost of getting them back and up to speed on the one they left. Plant on hire keeps invoicing whether anybody is using it or not. Price the whole of that before serving the notice — the figure is both what you are entitled to claim afterwards and the test of whether suspension is proportionate to the sum being withheld. Under AIA Document A201 the analogous right sits at Section 9.7, where the contractor may stop work on seven additional days' written notice if a certified payment has not arrived within the period the clause fixes.

Price the suspension before you serve the notice. Crew size, the all-in hourly rate you actually pay, and the hours the whole episode swallows — the notice week, the stoppage itself, and getting back up to speed on a face somebody has walked away from. It returns labour only, so add plant on hire separately. That figure is what section 112 lets you claim as costs and expenses of resuming, and it is also the honest test of whether stopping is proportionate to the sum being withheld.

Labor Cost Calculator

The total hours the job is expected to take, per worker.

The rate charged (or paid) per worker, per hour.

The number of workers billed at this hourly rate.

Total crew-hours

40 hours

Medium confidence

Figures that depend on a rate wait for yours — this page does not assume one.

What this calculation does not cover

  • One rate is multiplied across every hour and every worker, so there is no tier for overtime or holiday premiums, night and weekend differentials, or a crew that pairs a licensed lead with an apprentice — a mixed-rate job has to be totalled in separate runs and added by hand.
  • Crew size acts as a straight multiplier on the hours you entered, which assumes each additional worker stays productive for the full duration: the tasks that will not split across two pairs of hands, the time a crew loses coordinating, and the helper who is only on site for part of the week all leave the total untouched.
  • Nothing distinguishes a wage you pay from a rate you are charged, because the same multiplication runs on either. A figure built from raw wages carries no payroll taxes, workers' compensation, insurance or benefits on top of it, while a contractor's quoted rate may already have overhead and profit buried inside — the answer looks identical in both cases.
  • Only worked hours are priced. Travel and mobilization, setup and clean-up, tool or equipment hire, disposal, permits and materials all sit outside the figure, and no minimum charge is imposed either — an entry of half an hour returns half an hour of money on a job many trades would bill as a minimum visit.
  • The hours you type are taken exactly as they stand, with no contingency for rework, weather, waiting on an inspection or scope that grows once the walls are open, and the rate is held flat for the whole span — a long program approaching the 2,000-hour entry ceiling is still priced at today's number, with no escalation partway through.

The same month under a different statute

The shape of this mechanism — a claim from the payee, a responding document from the payer inside a fixed window, and a default consequence if he says nothing — is now common across the common-law construction world, and the vocabulary changes at every border. The subcontractor most likely to be caught is the one working across jurisdictions, or for a parent company that administers every job the way its head office does, against a deadline with a different name and a different length from the one they know.

Two things carry between them. In almost every one of these regimes the payer's failure to respond has a consequence, which is what makes the payee's document worth getting right. And several of them run separate, earlier and unforgiving clocks for preserving security rather than for getting paid — lien notices in North America in particular, where a preliminary notice served late can extinguish a right that had nothing to do with this month's application. Find out which clocks are running before the first application, not after the ninth.

Equivalent payment machinery elsewhere, by the named instrument rather than by day counts, which move between jurisdictions and between amendments
WhereThe named instrumentWhat the payee serves, and what the payer must do about it
England, Wales and Northern IrelandHousing Grants, Construction and Regeneration Act 1996, Part II, as amended by Part 8 of the Local Democracy, Economic Development and Construction Act 2009An application; the payer answers with a payment notice, and may only pay less than the notified sum by serving a pay less notice in time
New South WalesBuilding and Construction Industry Security of Payment Act 1999 (NSW)A payment claim; the respondent must provide a payment schedule inside the period the Act fixes, failing which it becomes liable for the claimed amount and loses the right to raise reasons later
QueenslandBuilding Industry Fairness (Security of Payment) Act 2017 (Qld)A payment claim answered by a payment schedule, with the same default consequence, sitting alongside the project and retention trust regime
New ZealandConstruction Contracts Act 2002, as amendedA payment claim; a payer who serves no payment schedule becomes liable for the full claimed amount, recoverable as a debt due in court
SingaporeBuilding and Construction Industry Security of Payment Act 2004A payment claim answered by a payment response, with adjudication and a right to suspend where the adjudicated amount is unpaid
OntarioConstruction Act, R.S.O. 1990, c. C.30, as amended by the prompt payment and adjudication provisionsA proper invoice, defined by the Act, starts the clock; a payer who disputes must deliver a notice of non-payment inside the period the Act fixes, and payment obligations flow down the chain
United States, federal workPrompt Payment Act, 31 U.S.C. chapter 39, and FAR clause 52.232-27A proper invoice for a progress payment, with interest running automatically on late payment and an obligation on the prime to pass payment down inside the period the clause fixes
Equivalent payment machinery elsewhere, by the named instrument rather than by day counts, which move between jurisdictions and between amendments

Application ten goes in on Friday regardless

The commonest way a firm loses this is not by losing an argument but by letting a dispute about month nine interrupt month ten. Each cycle is independent — its own due date, its own notice deadlines, its own default consequence — and a payer distracted by last month's argument is more likely to miss a notice, not less. Serve the next application on the usual day, in the usual form, from the usual address, with the disputed items carried forward at the same figures, and let the machinery run again. What happens to the disputed items when there are no more cycles left to run belongs to the final-account guide, which starts where this one stops.

Keep the record boring and it will do the work. Applications numbered in one sequence and never re-numbered. Cumulative figures that reconcile to the previous month on their face. Variations listed with their instruction references whether or not anybody has agreed them. Materials on site separate. Retention shown as a deduction rather than netted off. Sent the same way, at the same hour, to the same address, every month — which is what makes an assertion that something never arrived answerable in thirty seconds rather than in a witness statement.

Then write the letter, once, in the flattest language available. Name the application, the due date, the final date for payment, the absence of any notice under either provision, and the sum that consequently fell due, and ask when payment will be made. No adjectives, no history of the relationship, and no threat beyond the naming of a right that already exists. Most of these end there, because the person reading it can see that every line is checkable and that the next step is not a negotiation.

The afternoon that answers whether there is anything to argue about

Five of these are reconstruction, done from your own records before anyone is telephoned, and they decide what this month's conversation is actually about. The sixth is the arithmetic that tells you whether the strongest available response is proportionate to the sum being withheld.

  • The due date and the final date for payment, from the contract's own mechanism — Not from a remittance advice and not from an invoice. Everything else on this list is measured from those two dates, and a contract with no adequate mechanism has imported the Scheme's dates instead of its own.
  • Proof the application was a valid application — Inside the window, to the named address or portal, in the specified form, stating a sum and the basis on which it was calculated. Only then can it stand as the payee's notice in default.
  • The five days after the due date, searched by content rather than by title — Anything from the payer stating a sum and a basis is a payment notice whatever it calls itself, and it sets the notified sum at his figure rather than yours.
  • The pay less window, counted backwards from the final date — The period the contract prescribes, or seven days under the Scheme. A document served outside it does not reduce the notified sum however reasonable its contents are.
  • Every notice tested against the contract's notices clause — Permitted method, named address, correct sender, deemed time of receipt. Service is decided by that clause and not by whether the right person happened to read it.
  • The priced cost of suspending, before the seven-day notice is served — Standing time, the move to another job, the remobilisation, and plant on hire through the stoppage. It is what section 112 lets you claim, and it is the test of whether stopping is proportionate.
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Opens the calculators above on one screen with the dimensions from this article already filled in. Quantities only — this site publishes no price list, because local prices vary too much to publish honestly.

Drawn from

  • Housing Grants, Construction and Regeneration Act 1996, Part II — section 104 (construction contracts), section 105 (construction operations), section 106 (the exclusion of a contract with a residential occupier), section 108 (right to refer disputes to adjudication), section 109 (entitlement to stage payments), section 110 (dates for payment, and the restrictions on conditional and notice-dependent due dates), section 110A (payment notices), section 110B (payee's notice in default, and an application treated as that notice), section 111 (requirement to pay notified sum, the pay less notice, and the insolvency exception), section 112 (right to suspend performance for non-payment, costs and expenses of resuming, and the extension of time), section 113 (prohibition of conditional payment provisions)
  • Local Democracy, Economic Development and Construction Act 2009, Part 8 — the amendments to Part II of the 1996 Act
  • The Scheme for Construction Contracts (England and Wales) Regulations 1998, as amended by SI 2011/2333 — the due date, the final date for payment and the pay less notice period implied where a contract has no adequate mechanism
  • The Scheme for Construction Contracts (Scotland) Regulations 1998
  • S&T (UK) Ltd v Grove Developments Ltd [2018] EWCA Civ 2448 — the payer must pay the notified sum before referring the true value of the same interim payment to adjudication
  • Rochford Construction Ltd v Kilhan Construction Ltd (Technology and Construction Court, 2020) — obiter doubt as to whether a final date for payment may be tied to the receipt of an invoice rather than to a period after the due date
  • Late Payment of Commercial Debts (Interest) Act 1998, as amended — statutory interest, the fixed sum for recovery costs, and the substantial remedy test for a contractual rate
  • JCT Standard Building Sub-Contract Conditions and JCT Design and Build Contract — Interim Valuation Dates, the contractor's Interim Payment Notice, and the Pay Less Notice
  • NEC4 Engineering and Construction Contract and Engineering and Construction Subcontract — assessment dates, the Project Manager's assessment and certificate, and secondary Option Y(UK)2, the Housing Grants, Construction and Regeneration Act 1996
  • FIDIC Conditions of Contract for Construction — Sub-Clause 14.3 (Application for Interim Payment) and Sub-Clause 14.6 (Issue of Interim Payment Certificate)
  • AIA Document A201, General Conditions of the Contract for Construction — Section 9.3 (Applications for Payment), Section 9.4 (Certificates for Payment), Section 9.5 (Decisions to Withhold Certification), Section 9.7 (Failure of Payment)
  • AIA Document G702, Application and Certificate for Payment, and G703, Continuation Sheet
  • AIA Document A401, Standard Form of Agreement Between Contractor and Subcontractor
  • Prompt Payment Act, 31 U.S.C. chapter 39
  • Federal Acquisition Regulation, clause 52.232-27 (Prompt Payment for Construction Contracts)
  • Building and Construction Industry Security of Payment Act 1999 (New South Wales) — payment claims and payment schedules
  • Building Industry Fairness (Security of Payment) Act 2017 (Queensland) — payment claims, payment schedules and adjudication
  • Construction Contracts Act 2002 (New Zealand), as amended — payment claims, payment schedules and liability for the claimed amount where no schedule is given
  • Building and Construction Industry Security of Payment Act 2004 (Singapore) — payment claims, payment responses and the right to suspend
  • Construction Act, R.S.O. 1990, c. C.30 (Ontario) — the proper invoice, prompt payment and notices of non-payment
  • RICS guidance note, Interim valuations and payment — the valuation of work executed, materials on site and preliminaries at an interim date

Guidance, not a specification. Local codes, the engineer of record and the product manufacturer’s instructions govern where they differ from anything written here.