Payment applications and holdback

Cash is the lifeblood of construction. Contractors and subcontractors finance labour, materials and equipment for weeks or months before they are paid, often on thin margins. The rules on how and when money moves down the contract chain, and how much of it is held back until the work is finished, decide whether a profitable job is also a solvent one. This lesson covers progress payment applications, the schedule of values, payment certification, the money withheld from each payment, substantial completion and final payment. The next lesson covers the statutes that now set deadlines for paying.

Progress payments

Except for small jobs, construction contracts pay in instalments as the work progresses, usually monthly. The contractor submits an application for payment showing the value of work completed to date; the payment certifier, often the architect or engineer, checks it; and the owner pays the certified amount less any money withheld.

Under CCDC 2-2020 Part 5, the contractor submits a monthly application for payment based on the schedule of values, the consultant issues a certificate for payment for the amount it determines is due, and the owner pays the certified amount, less the statutory holdback, within the time the contract allows. In provinces with prompt payment legislation, the timing and the content of a proper invoice are set by statute, and the contract must be read with it.

The core of every payment application is the schedule of values: a breakdown of the contract price into line items, each with a value, against which progress is measured. A good schedule of values is agreed early, follows the work breakdown structure, and separates labour, materials and general conditions so that progress can be measured fairly.

What can be claimed

A payment application normally includes:

• Work in place, measured as a percentage of each line item.
• Materials delivered to site and suitably stored, if the contract allows.
• Materials stored off site, sometimes, if the contractor proves title, insurance and security, for example with a bill of sale and photos.
• Approved change orders, and sometimes undisputed amounts for pending changes.

Front-end loading, inflating the value of early line items so that the contractor is overpaid at the start, is a common temptation. It weakens the owner's security, can mislead sureties, and may breach the contract and, in some places, the law. Payment certifiers resist it by comparing the schedule of values with the estimate.

Holdback

Every common law province requires the owner, and each payer down the chain, to hold back a percentage of the value of work done, usually 10 %, as security for those who might register a lien. The holdback protects the owner: if the owner keeps the statutory holdback and pays it out only after the lien period expires, its liability to lien claimants is generally limited to the holdback amount. Holdback is not a penalty and it is not the owner's money to keep; it must be paid once the conditions for release are met.

Holdback must be retained at each tier. A general contractor holds back 10 % from its subcontractors, who hold back from their own subtrades. Each payer that retains the holdback limits its lien exposure; each payer that pays it out early takes a risk.

Substantial performance

Substantial performance is the key milestone for holdback and liens. Under Ontario's Construction Act, a contract is substantially performed when the improvement, or a substantial part of it, is ready for use or is being used for its intended purpose, and the improvement can be completed or corrected at a cost of not more than 3 % of the first $1,000,000 of the contract price, 2 % of the next $1,000,000 and 1 % of the balance. Other provinces use similar formulas. Once the payment certifier certifies substantial performance, the certificate is published, and the lien and holdback release clocks start.

Annual and phased holdback release

Waiting years for holdback on a long project strains contractors' cash flow. Ontario's amendments in force on January 1, 2026 require annual release of accrued holdback on contracts that meet the statutory conditions: within 14 days after each anniversary of the contract the owner publishes a notice of the amount it intends to pay, and payment follows after the lien period for that notice, unless a lien blocks it. For contracts made before 2026, the first annual release falls on the second anniversary after January 1, 2026. Accrued holdback must then flow down to subcontractors within 14 days. Contracts can also provide for phased release, for example when a phase or a subcontract is completed, and some provinces allow early release for subcontractors who finish early.

Final payment

Final payment is made after the work is fully complete, deficiencies are corrected, closeout documents such as as-built drawings, manuals, warranties and statutory declarations or lien waivers are delivered, and the release conditions are met. Final payment can have legal consequences: many contracts provide that accepting final payment waives claims not already made, subject to exceptions for latent defects and warranties.

Under CCDC 2-2020, the contractor submits an application for final payment when the work is complete; the consultant certifies; and the owner pays, subject to the holdback rules and any statutory declaration required to show that the contractor has paid its subcontractors and suppliers.

Good payment practice

• Agree a detailed schedule of values early and keep it aligned with the schedule.
• Submit complete, accurate applications on time with the required backup.
• Track holdback or retainage at every tier and diarize release dates.
• Keep stored-material documentation: bills of sale, photos, insurance.
• Read the final payment clause before accepting final payment.

The payment certifier's role

The architect or engineer who certifies payment occupies a delicate position. It is engaged and paid by the owner, but when it certifies payment or decides disputes under the contract it must act fairly and impartially between owner and contractor, using its professional judgment rather than following the owner's instructions. A certifier who refuses to certify amounts plainly due, or who withholds certification on the owner's direction to manage the owner's cash flow, may expose itself and the owner to liability, and the contractor may have remedies for non-certification.

Certification is not a guarantee. A certificate states the certifier's opinion, based on reasonable observation, that work of the stated value has been done; it does not certify that all the work complies with the contract, and payment does not mean acceptance of defective work. Contracts usually say so expressly. Certifiers also rely on the contractor's applications and supporting documents, so false statements in a payment application can lead to claims for misrepresentation and, on public work, to statutory penalties.

Set-off and back-charges

Payers often reduce payments by amounts they say the payee owes them: back-charges for cleanup, damage or rework, or claims for delay. This is set-off. Contracts and statutes limit it in several ways. Many subcontracts allow set-off only for amounts arising under the same subcontract, only after written notice and an opportunity to remedy, or only for liquidated, agreed amounts. Prompt payment statutes generally require any withholding to be identified in a timely written notice. And statutory trusts may limit set-off against trust funds. A payer that sets off unproven claims against undisputed amounts risks interest, statutory remedies and, in some cases, liability for breach of trust.

Good payment administration therefore rests on three habits: document every potential back-charge as it arises, follow the notice and remedy procedure exactly, and keep disputed amounts separate from undisputed ones so that the undisputed money keeps flowing.

Finally, payment terms interact with financing. Lenders on private projects usually release construction loan advances only after their own cost consultant confirms progress and title searches show no liens, so a late or inaccurate payment application can delay the owner's funding as well as the contractor's. Coordinating the application date with the lender's draw schedule, and providing the supporting documents the lender needs, keeps money moving down the whole chain.