Retainage in Construction: How Contractors Get the Last 10% Paid
Learn how retainage in construction works, what state rules may limit it, and a step-by-step plan to bill, document and collect it before it goes bad.
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On this page 7 sections
- What Retainage in Construction Is and Why Owners and GCs Withhold It
- Retainage Laws by State: Caps and Prompt Payment Rules
- Billing Retainage Correctly on Pay Applications
- Closeout Documents That Trigger Release of Retainage
- How to Collect Retainage by ACH, Card, or Check
- Escalation Options When Retainage Is Withheld Too Long
- Next Steps
Key takeaways
- Retainage is a contract term that state law often limits, so read both the contract and your state's rules before the job starts.
- Track retainage as its own receivable on every pay application so it never gets lost in general AR.
- Closeout documents trigger release, so start assembling lien waivers, warranties and punch list sign-offs early.
- Lien and bond claim deadlines can expire while you wait for retainage, so put them on the calendar from day one.
Retainage in construction is the portion of each progress payment that an owner or general contractor holds back until the job is finished. On a commercial project or subcontract, that held-back money is often your profit margin. If it slips past closeout, it can turn into a write-off. This guide explains how retainage works, where state rules apply, how to bill it on pay applications, which closeout documents trigger release, how to accept the final payment and what to do when it is held too long.
This article is general information, not legal or tax advice. Retainage rules vary by state, by contract and by whether a project is public or private. Confirm your rights with a construction attorney or other qualified professional.
What Retainage in Construction Is and Why Owners and GCs Withhold It
Retainage, also called retention, is a percentage withheld from each approved progress payment. People often call it "the last 10%," but that is shorthand. Your contract sets the actual percentage, and on many jobs state law or public-contract rules cap it.
Owners withhold retainage for three main reasons:
- Leverage to finish. Held money gives the contractor a reason to complete punch list items and closeout paperwork.
- Protection against defects. If work has to be corrected, the owner has funds on hand.
- Lien protection. Retainage helps make sure lower-tier subcontractors and suppliers get paid before the owner releases the final dollars.
How Retainage Flows Down to Subcontractors
General contractors usually pass retainage down the chain. When the owner holds back from the GC, the GC holds back the same or a similar percentage from each subcontractor, and subs may hold back from their own sub-subs.
That creates a timing problem for any retention payment a subcontractor is owed. Early trades such as sitework, foundations and structural steel can finish months before the building is done and then wait for the whole project to close out before their retainage is released. Check your subcontract for these clauses:
- Pay-when-paid or pay-if-paid clauses, which tie your payment to the GC getting paid. Enforceability varies by state.
- Line-item or early release provisions, which let finished trades get retainage before the full project is complete.
- Retainage reduction clauses, which lower the withholding once the job reaches a set point of completion.
Illustrative Example
The figures below are illustrative only. A drywall subcontractor signs a $200,000 subcontract with 10% retainage. After billing the full contract value, the sub has collected $180,000, and $20,000 is still with the GC. If the sub's margin on the job is about that size, the entire profit depends on collecting retainage.
Retainage Laws by State: Caps and Prompt Payment Rules
Retainage laws by state differ widely, and many states treat public and private projects differently. Without pointing to any particular state, here are the types of rules you may run into:
| Rule Type | What It Generally Does | What to Check |
|---|---|---|
| Retainage caps | Limit the percentage that can be withheld | Whether the cap applies to private jobs, public jobs or both |
| Reduction at a milestone | Lower or stop withholding after a completion point | The trigger point and who must request it |
| Prompt payment deadlines | Require release within a set time after completion or acceptance | What event starts the clock |
| Flow-down timing | Require GCs to pay subs their retainage within a set time after the GC receives it | Days allowed and penalties |
| Interest on late payment | Add interest when retainage is paid late | Rate, start date and whether it can be waived |
| Escrow or security substitution | Allow retainage to be held in escrow, or securities or bonds to replace cash, on some projects | Eligibility and paperwork |
Two practical points:
- Contracts can't always override statutes. In some states, a contract clause that conflicts with the prompt payment law may be unenforceable. Other states give the parties more freedom. Ask an attorney how your state treats this.
- Public jobs have their own rules. Federal, state and municipal projects often carry separate prompt payment and retainage provisions, plus payment bond requirements.
Before you bid, look up the current rules for the state and project type, and record the release deadline in your job file.
Billing Retainage Correctly on Pay Applications
Sloppy billing is a common way retainage gets lost. Most commercial jobs use an AIA-style pay application with a summary page and a continuation sheet that lists each line of the schedule of values.
On every pay app, show:
- Scheduled value for each line item
- Work completed this period and to date
- Stored materials, if your contract allows billing for them
- Retainage withheld this period and cumulative retainage to date
- Net amount due this period
Illustrative pay application summary:
| Line | Amount |
|---|---|
| Total completed and stored to date | $120,000 |
| Less retainage (10%, illustrative) | ($12,000) |
| Total earned less retainage | $108,000 |
| Less previous payments | ($81,000) |
| Current payment due | $27,000 |
Habits That Protect Your Retainage
- Keep a retainage ledger for each job. Track retainage as a separate receivable, not as part of general AR, so it shows on your aging reports. In QuickBooks, a dedicated retainage receivable account makes this easier. MannyPay lists QuickBooks among its integrations.
- Bill change orders with their own retainage lines. Approved extra work usually carries retainage too. Our guide to getting paid for construction change orders covers the paperwork.
- Request reductions in writing. If your contract allows a reduction at a milestone, submit the request with the pay app that crosses that point. Reductions rarely happen automatically.
- Submit a separate retainage release invoice. After closeout, bill retainage as its own pay application showing 100% complete with only retainage due.
Align your construction draw schedule and milestone payments with the retainage terms when you sign the contract. Doing so heads off arguments later.
Closeout Documents That Trigger Release of Retainage
Release of retainage almost always depends on paperwork. Owners and GCs often can't release funds until their own lenders, architects or sureties sign off, depending on the contract, the financing and whether the project is bonded. Start building the closeout package before you finish the work, not after.
Typical Closeout Checklist
- Punch list completion, with sign-off from the architect, owner or GC
- Certificate of substantial completion, and later final completion if your contract separates the two
- Final inspection approvals and, where applicable, a certificate of occupancy
- Warranties and guarantees for your scope, including manufacturer warranties
- Operation and maintenance manuals and any required owner training
- As-built drawings or redlines
- Attic stock and spare materials, delivered with a signed receipt
- Final lien waivers: a conditional final waiver tied to the retainage payment, then an unconditional waiver once funds clear
- Lower-tier waivers from your own subs and suppliers
- Consent of surety on bonded projects
- Certified payroll and compliance documents on public or prevailing-wage jobs
Sign the right type of waiver at the right time. If you sign an unconditional final waiver before the money clears, you can give up your lien rights on the very funds you are chasing. See our explainer on conditional vs. unconditional lien waivers.
Send the package with a cover letter that lists every document, the date submitted and the retainage amount requested. That letter gives you a dated record if you need to escalate.
How to Collect Retainage by ACH, Card, or Check
Once retainage is approved, the way you accept the payment affects how quickly you can use the money and what it costs you.
| Method | Strengths | Watch Outs |
|---|---|---|
| ACH | Low cost, common for GC and owner payments, easy to reconcile | Confirm bank details by phone to avoid payment-redirection fraud |
| Check | Familiar to most GCs | Mail delays, deposit holds, lost checks |
| Card (keyed or online) | Fast authorization, convenient for smaller owners | Processing fees on large amounts, possible review of unusually large tickets |
Practical Tips
- Make ACH easy to choose. Put your bank instructions on every pay app, and verify any change request by calling a phone number you already know is legitimate. Our guide to ACH payments for small business explains timing and costs.
- Offer card acceptance without a terminal. Retainage is usually paid remotely. A virtual terminal for keyed card payments or an online payment page lets an owner pay from the office. Keyed transactions typically cost more than card-present ones. This article explains why online and keyed transactions cost more to process.
- Tell your processor about large payments. A retainage payment far above your normal ticket size can trigger a review, and sharing the contract and invoice ahead of time helps. Read why a processor may hold funds on a big payment.
- Check fee rules before passing on card costs. Card network rules and state laws limit surcharging. Our article on whether you can charge a credit card fee on progress invoices walks through the options. MannyPay also offers compliant surcharging programs where permitted.
For a side-by-side look at large-ticket payments, see card vs. ACH vs. check for big remodel payments.
Escalation Options When Retainage Is Withheld Too Long
Retainage that sits for months after closeout tends to get harder to collect. Contacts change jobs, owners sell buildings and GCs run into cash trouble. Escalate in steps and keep everything in writing.
A Step-by-Step Escalation Plan
- Confirm the package is complete. Ask in writing whether anything is missing. Silence is not the same as acceptance.
- Send a formal demand. Cite the contract clause, the date of substantial or final completion, the documents delivered and any applicable prompt payment law. Request payment by a specific date.
- Raise statutory interest where it applies. If your state's prompt payment rules provide for interest on late retainage, include the calculation in your demand.
- Protect your lien rights. Mechanic's lien deadlines are often counted from your last work or from project completion, not from the date retainage was due. Contractors who wait politely for payment can lose their lien rights. Our guide to mechanic's lien steps and deadlines covers the process.
- File a payment bond claim on bonded jobs. Public projects and some private ones rely on payment bonds instead of lien rights. Bond claims have strict notice requirements and deadlines.
- Use the contract's dispute process. Many contracts require mediation or arbitration before a lawsuit.
- Bring in a construction attorney. Do this early, especially before any deadline that could cut off your rights.
Keep Retainage From Aging Into Bad Debt
- Start a retainage aging clock at substantial completion for every job.
- Review open retainage monthly alongside regular AR.
- Build expected retainage dates into a 13-week cash flow forecast so a late release doesn't catch payroll off guard.
- Put lien and bond deadlines on the calendar the day you sign the contract.
Next Steps
Collecting retainage comes down to preparation. Know your contract and state rules before you bid, show retainage clearly on every pay application, deliver a complete closeout package and escalate in writing before deadlines pass.
You can also make the final payment easier for the owner or GC. MannyPay offers virtual terminals for keyed card payments, online payment acceptance and other payment solutions that can help when retainage is paid remotely. To review your setup, request a free quote, and a MannyPay specialist will respond within one business day.
This article is for general educational purposes and is not legal, tax or financial advice. Card network rules and state laws change; confirm current requirements for your business.
