What retainage is and how excavation contractors track it

You finish the trench, the base, and the grading, and the invoice says you have earned most of the job. The customer pays most of it. The rest sits in an account on their side until the owner signs off on the whole project. That held-back money is retainage, and on a job with progress billing it can be the difference between a healthy month and a tight one.

What retainage is

Retainage is a slice of each progress payment that the customer keeps until the work is finished and accepted. It is security for the customer: if you leave punch-list items or the job runs into trouble, they still have money to hold. It is not a fee, and it is not a discount. The money is still yours. You earned it, and you get it when the release conditions are met.

You will see it most on commercial and public work, and on jobs where you are a sub to a general contractor. The percentage, when it drops, and what releases it all come from the contract. Read that part before you sign, not after the first pay application.

How it changes your cash

Say you bill for work you finished this month. With retainage, you bill the full amount earned, and the customer pays that amount less the held slice. Your receivable does not shrink. The held part is still owed, it is just not due yet, so it should not show up as a past-due invoice or get a reminder that treats it like one.

That is the trap. Retainage can look like a collection problem when it is really a timing problem, and it can grow quietly across several jobs until the total is a real part of your working capital. Track it on purpose so it does not hide inside your receivables.

Before you sign: the questions that decide it

Get answers in writing, ideally in the contract itself:

• The percentage, and whether it applies to every payment or only some of them.
• Whether it drops partway through. Some contracts reduce the holdback at a set point in the job. Know the point and the new number.
• What releases it. Substantial completion, final completion, a signed punch list, a closeout letter, or the whole project finishing. If your part is done early, ask whether your share can be released then.
• What you have to hand in to get it. Lien waivers, as-builts, warranties, certified payroll, or closeout paperwork. Missing one of these is the most common reason retainage sits for months.
• How long the release takes. Some contracts set a deadline after completion. Many do not, which means you chase it.

Retainage rules can also come from state law, especially on public work, so check what applies to your job. For how it should be handled on your books and your taxes, ask your accountant.

How to track it, job by job

1. Write the percentage on every progress invoice. In TrackOver, a progress invoice has a field for the retainage held on that invoice. The invoice shows how much is held, and the balance due leaves that amount out, so reminders chase only what is collectible now.
2. Keep one list of what is held. TrackOver's financials page has a retainage summary across your jobs, so you can see the total before it surprises you at year end.
3. Put the release conditions on the job. Write down the trigger and the paperwork it needs, in the job file where the crew and office will both see it.
4. Bill the retainage when it is due. From the job, the retainage can be billed on its own invoice once the release conditions are met, so it goes out as a clear request instead of a loose reminder.
5. Record it the day it comes in. When the money arrives, record it as retainage received with the date it came in. The invoice stays paid, and the amount drops off the held list.

A pay application is the other place retainage shows up. The job's pay application page lays out the work completed to date, the retainage held to date, and the balance to finish. If your customer or GC uses pay apps, check that the numbers on your summary match what you have billed.

Close the loop at closeout

Retainage is most often lost at closeout, when the job is finished, the crew has moved on, and nobody is chasing the last paperwork. Before you call the job done, list every open retainage amount, the release condition still outstanding, and the person who owes you the signature. Our year-end closeout checklist includes this step, and the subcontractor contract checklist covers the terms worth nailing down before you mobilize.

Where TrackOver fits

TrackOver keeps retainage on the invoice it belongs to, out of your collectible balance, with the percentage, the held amount, and the date it was received in one record. You can see what is still held across your jobs without rebuilding the list by hand. If you want to see how it works on your own jobs, estimates and invoices covers the billing side, and you can start the 7-day free trial, no card needed.

For the plain definition and typical release terms, see our retainage glossary page.

Common questions

Is retainage a discount? No. It is money you have earned and will be paid later, once the customer's release conditions are met. Your contract sets the percentage and the terms.

Should retainage count as an overdue invoice? Not until it is due under the contract. Track it separately so your aging report and your reminders reflect what is actually owed today.

What usually holds up a retainage release? Missing paperwork, mainly lien waivers, as-builts, and closeout documents, along with open punch-list items. Start collecting those when the work is done, not when the check is due.

Can I ask for my retainage back early? Only if the contract allows it, or the customer agrees. Ask in writing, and do not assume. If your part of the job is finished, that is the moment to ask whether your share can be released.

Do I need a lawyer to handle retainage? For a contract you are about to sign, or a dispute over a release, yes, an attorney who knows your state's rules is worth the call. For tracking the money you are owed, the steps above are the routine.