Every month, you approve a pay application. Every month, a slice of that payment stays behind. That slice is retainage, and it shapes cash flow, subcontractor relationships, and project risk on every commercial build in America.

This guide covers what retainage is, how the rates work, when funds release, and where GCs get tripped up in 2026.

What Is Retainage in Construction?

Retainage is a percentage of each progress payment withheld by the owner from the general contractor, and by the GC from each subcontractor, until the project reaches a defined completion milestone.

The withheld funds act as financial security. They protect the party making payment against three risks:

Incomplete work. If a trade walks off or falls behind, the retained funds cover completion costs.
Defective work. Retainage gives the paying party leverage to demand punch-list corrections before releasing the final dollar.
Lien claims. Held funds provide a buffer if a lower-tier sub or supplier files a mechanic's lien.

Retainage is not a penalty. It is a performance incentive baked into the payment structure of nearly every construction contract in the United States.

Standard Retainage Rates

Retainage Rate	Where You See It	Notes
5%	Most commercial, institutional, and public projects	Industry standard since the 1990s
10%	Residential, some private industrial	Common on projects under $1M
5% reducing to 0% at 50% completion	Federal (FAR 52.232-5) and many state public works	Reduction triggers at halfway mark
2.5%	Negotiated on large-scale ($50M+) projects	Growing trend for creditworthy GCs
0%	Owner-negotiated, design-build with bonding	Rare but increasing in progressive delivery models

The 5% rate dominates. According to a 2024 survey by the Associated General Contractors of America, 73% of commercial projects use 5% retainage from first dollar to substantial completion.

Ten percent retainage still appears on smaller private projects and in states without retainage caps. But the trend line is clear: rates are dropping. Eighteen states now cap public project retainage at 5%, up from eleven states a decade ago.

How Retainage Appears on G702/G703 Forms

The AIA G702 (Application and Certificate for Payment) and G703 (Continuation Sheet) are where retainage becomes visible in the pay application process.

On the G703, each line item in the schedule of values shows:

Scheduled Value -- the original contract amount for that work item.
Work Completed -- broken into prior periods and current period.
Materials Presently Stored -- materials on-site but not yet installed.
Total Completed and Stored to Date -- the sum.
Retainage -- the percentage or dollar amount withheld from that line.

The G702 summary page rolls up the retainage into a single figure that reduces the net payment due.

A common GC error: applying different retainage rates to different line items without contractual basis. If your contract states 5% retainage, every line on the G703 should reflect 5%. Inconsistency triggers audit flags and delays payment.

The Double Retainage Problem

Here is where retainage gets painful.

The owner withholds 5% from the GC. The GC withholds 5% from the subcontractor. On the surface, the math looks balanced. In practice, it is not.

Example on a $10M project:

Party	Contract Value	Retainage Held by Party Above	Cash Impact
Owner	$10,000,000	N/A	Holds $500,000
General Contractor	$10,000,000	$500,000 withheld by owner	GC holds $500K from subs but has $500K withheld from them
Electrical Sub	$1,200,000	$60,000 withheld by GC	Sub finances $60K for 6-18 months
Mechanical Sub	$2,800,000	$140,000 withheld by GC	Sub finances $140K for 6-18 months
All Subs Combined	$8,500,000	$425,000 withheld by GC	Combined cash flow gap

The GC collects $425,000 in retainage from subs but only has $500,000 withheld by the owner. The $75,000 difference sits in the GC's operating account. This creates a temptation -- and an ethical obligation -- to segregate retainage funds.

Twelve states now require retainage to be held in escrow or trust accounts. If your state is one of them, commingling retainage with operating funds is a statutory violation.

When Does Retainage Release?

Retainage release triggers vary by contract, but the most common milestones are:

Substantial Completion. The point at which the owner can use the building for its intended purpose. Most contracts release 50% of retainage at substantial completion.

Final Completion. All punch-list items resolved, all closeout documents submitted, all lien waivers collected. The remaining retainage releases here.

Milestone-Based Release. Some contracts define intermediate release points. A sub who completes their scope early may negotiate retainage release at their individual substantial completion rather than waiting for the entire project.

Federal Projects. Under the Miller Act and FAR, retainage on federal construction contracts reduces to 0% once the project reaches 50% completion, provided the contractor's performance is satisfactory. This is not optional; it is regulatory.

Federal Miller Act Retainage Rules

Federal construction contracts follow the Federal Acquisition Regulation (FAR 52.232-5), which states:

The contracting officer shall reduce retainage to 0% upon satisfactory progress at 50% completion.
If performance is unsatisfactory, the contracting officer may reinstate retainage.
The contractor must reduce or eliminate retainage to subcontractors in the same manner.

This last point matters. If a federal agency releases retainage to the GC at 50%, the GC must pass that release through to subs. Holding sub retainage after the owner has released it is a breach of the flow-down obligation.

Retainage Escrow Requirements

Escrow requirements vary by state. Here is the current landscape:

Requirement	States
Mandatory escrow for public projects	CO, CT, IL, MD, MA, NE, NM, OH, OR, PA, UT, WV
Mandatory interest on retainage	MA, NM, OH, OR, UT
Escrow optional but encouraged	CA, FL, NY, TX
No escrow requirement	Remaining states

When retainage escrow is required, the GC must deposit withheld funds into an interest-bearing account. The interest accrues to the subcontractor, not the GC.

Failing to escrow when required does not just create liability. It can void the GC's right to withhold retainage entirely.

Retainage and Change Orders

Change orders complicate retainage in two ways.

First, retainage applies to change order work at the same rate as the original contract unless the change order states otherwise. A $200,000 change order on a 5% retainage contract means an additional $10,000 withheld.

Second, GCs sometimes apply retainage to change order work that the sub has already completed and billed at 100%. This is improper. If the change order work is done and accepted, retainage on that work should follow the same release schedule as the base contract work.

A frequent audit finding: GCs withholding retainage on stored materials that are covered by change orders. Unless the contract explicitly permits this, it is an overage that the sub will dispute.

Five Retainage Mistakes GCs Make

Holding retainage past the contractual release date. Many states impose interest penalties. In Ohio, late retainage accrues 18% annual interest.
Not reducing retainage at 50% on federal projects. This violates FAR and can trigger a contract compliance review.
Commingling retainage with operating funds in escrow-required states. This is a statutory violation, not just bad practice.
Applying inconsistent retainage rates across the schedule of values. If the contract says 5%, every line must be 5%.
Withholding retainage from a sub whose scope is complete because the overall project is not. Unless the contract explicitly ties sub retainage release to project completion, this is withholding without basis.

How Technology Speeds Retainage Release

Manual retainage tracking -- spreadsheets, paper G702s, email chains -- creates delays. A sub submits a retainage release request. The GC checks the schedule of values. The GC checks the punch list. The GC checks the lien waiver status. Each step takes days.

Automated pay application audit tools compress this timeline. They cross-reference the schedule of values against completion percentages, verify lien waiver status in real time, and flag retainage discrepancies before the pay app reaches the owner.

The result: faster retainage release, fewer disputes, and better subcontractor relationships.

FAQs

What is the standard retainage rate in construction? Five percent is the most common rate on commercial and public projects. Ten percent still appears on some private and residential work. Several states cap retainage at 5% by statute.

When is retainage released? Most contracts release half at substantial completion and the remainder at final completion. Federal projects require retainage reduction to 0% at 50% project completion under FAR 52.232-5.

Can a GC hold retainage from a sub whose work is done? It depends on the contract. If the subcontract ties retainage release to overall project completion, yes. If it ties release to the sub's individual completion, the GC must release when the sub's scope is accepted.

Is retainage held in escrow? Twelve states require escrow for public project retainage. Some require interest to accrue to the subcontractor. Private projects rarely require escrow unless the contract specifies it.

Does retainage apply to change orders? Yes, at the same rate as the original contract unless the change order states a different rate.

What happens if a GC releases retainage late? Several states impose statutory interest penalties. Ohio charges 18% annual interest. Other states allow the sub to recover attorney fees for retainage collection actions.

Retainage errors hide in pay applications. SubcontractorAudit.com's pay app audit tool cross-checks retainage against your schedule of values, flags discrepancies, and tracks release milestones automatically.