How Does an Architect Certify a Pay Application?

By Wyatt Cooper · Published October 11, 2026 · 5 min read

Key takeaways

On many owner contracts the architect's signature on the pay application certifies to the owner that the amount shown is due, and the owner pays on it.
Review a draft (pencil) copy first, against your site observations and the approved schedule of values, so the signed application needs no changes.
To certify less than was applied for, initial each changed figure, attach an explanation, and certify the lower total; in the example below, $268,850.00 becomes $243,200.00.
Your agreement with the owner and the general conditions decide what your certificate represents, so read them before the first application arrives.

An architect certifies a pay application by checking the contractor's application against the approved schedule of values, the architect's own site observations and the contract's requirements, then signing the certificate for the amount the architect finds due. If that is less than the amount applied for, the architect initials each changed figure, attaches a written explanation and certifies the lower amount. The owner then pays the contractor based on the certified amount, as the contract provides.

What your certificate means

The AIA describes its G702 as "both the contractor's application and the architect's certification": the architect's signature "certifies to the owner that a payment in the amount indicated is due to the contractor" (AIA G702 summary). Its instructions add that the owner "should make payment directly to the Contractor based on the amount certified by the Architect" (AIA G702 instructions). Other forms and contracts use other words, and some owners have their own staff approve payments instead. On GSA's construction progress report, for example, a project manager accepts the work and others approve the payment (GSA Form 184).

Exactly what your signature represents, and what it does not (such as an exhaustive inspection), is set by your owner-architect agreement and the general conditions. Read those clauses before the first application. Your job is the amount due; the owner's checks after your certificate (lien waivers, the change-order log, the payment deadline) are in how an owner reviews a GC's pay application.

Certify in five steps

Approve the schedule of values at the start, with lines small enough to judge from a site visit. Specifications often require it before the first application, such as 14 days before (University of Houston, Section 01 29 00).
Review the pencil draft the contractor sends before the due date (the same specification asks for one seven days ahead), line by line against your last site observation and the schedule.
Check stored materials against the documentation the contract requires, and change orders against those executed.
Check the arithmetic: completed and stored to date, retainage at the contract rate, previous certificates, amount due.
Sign the certificate for the amount you find due. If it differs from the application, initial each changed figure and attach your explanation.

The AIA's instructions describe that last step: the architect "may certify a different amount than that applied for", should "initial all figures" on the application and continuation sheet that were changed to match the amount certified, "and attach an explanation" (AIA G702 instructions). The same specification returns incomplete applications "without action".

A worked example: certifying a lower amount

A fictional architect, "Fieldstone Architects", reviews a fictional GC's seventh application on a school addition. Retainage is 5%. The GC applies for $268,850.00 this period: work this period of $283,000.00, less 5% retainage of $14,150.00. One line doesn't match the architect's observations:

The architect's changes to pay application 7 (fictional)
Line	Applied for this period	Certified this period	Explanation
Roofing ($180,000.00 line, nothing billed before)	$90,000.00 (50%)	$63,000.00 (35%)	East wing membrane not yet installed at the site visit
All other lines	$193,000.00	$193,000.00	Consistent with observations
Work this period	$283,000.00	$256,000.00
Less 5% retainage	−$14,150.00	−$12,800.00
Amount due this period	$268,850.00	$243,200.00

The arithmetic: 35% of $180,000.00 is $63,000.00, so the roofing cut is $27,000.00; $283,000.00 − $27,000.00 = $256,000.00; 5% of that is $12,800.00; $256,000.00 − $12,800.00 = $243,200.00. The difference from the application, $25,650.00, is 95% of the $27,000.00 removed.

1ContractorSends the pencil draft a week before the due date
2ArchitectCompares it with the last site observation and flags the roofing line
3ContractorRevises the line, or submits as is with backup
4ArchitectInitials the changed figures, attaches the explanation, certifies $243,200.00
5OwnerPays the certified amount by the contract's due date

From draft to certified amount

Keep the record

Keep the draft, your site-observation notes and photos, the explanation you attached and the signed certificate together for each application. When a contractor disputes a certified amount, or an owner asks why a line was paid, that file is the answer. For the figures on the form, see what a pay application is and how retainage is calculated.

The bottom line

Certifying a pay application is a judgment you sign: the amount you find due, from what you observed and what the contract requires. Do it on a draft, change only what you can explain, and write the explanation down.

In Conflo today, the owner approves the GC's pay application directly; an architect's certification step isn't built, and the design team doesn't see pay apps yet. Join the waitlist to hear when it is.

Join the waitlist as an architect or engineer

Sources

Summary: G702–1992, Application and Certificate for Payment — AIA Contract Documents (The American Institute of Architects). Read October 16, 2026.
Instructions: G702–1992, Application and Certificate for Payment — AIA Contract Documents (The American Institute of Architects). Read October 16, 2026.
Section 01 29 00, Payment Procedures (master construction specification) — University of Houston, Facilities Planning and Construction. Read October 16, 2026.
GSA Form 184, Construction Progress Report — U.S. General Services Administration. Read October 16, 2026.

Questions

What does an architect's certificate for payment mean?

On contracts that use one, it certifies to the owner that the amount shown is due to the contractor, based on the architect's review. Your agreement and the general conditions define its limits.

Can an architect certify less than the contractor applied for?

Yes, under many contracts. The architect initials each changed figure, attaches an explanation and certifies the lower amount, and the owner pays on that.

What is a pencil copy of a pay application?

A draft the contractor sends before the formal application so the architect and owner can agree on the figures first. Some specifications require it about seven days before the due date.

Does the architect need to visit the site before certifying?

The certificate is usually based on the architect's site observations and the contractor's data, so most architects time a site visit to the billing period. Check what your agreement requires.