Billing

What is retainage in construction?

Retainage is the portion of each progress payment an owner or general contractor holds back until the work is complete, as security that the job gets finished and fixed.

An office manager and contractor review invoices with a calculator and laptop in a construction office.
Review invoices, committed costs, and cash timing together before making project decisions. AI-generated illustration.

Retainage (also called retention or holdback) is money that is earned but not yet paid. Each time a contractor submits a pay application, the owner pays the approved amount minus a set percentage. That withheld money builds up over the life of the job and is released at substantial completion or final completion, once punch work, closeout documents, and lien releases are in.

The idea is simple. The owner keeps leverage until the last ceiling tile is set and the O&M manuals are delivered. The cost lands on the contractor, who has already paid for the labor and material that the held money represents.

How retainage works on a real job

Say a general contractor has a $1,200,000 contract with 10 percent retainage. In month three, the schedule of values shows $300,000 of work complete to date, and $180,000 was billed in earlier months. This month's billing is $120,000.

Example: month three pay application with 10 percent retainage
LineAmount
Work completed this period$120,000
Retainage held this period (10%)$12,000
Payment due this period$108,000
Total retainage held to date$30,000

That $30,000 is already spent on crews and materials. Multiply it across eight active jobs and retainage can be the largest single asset on a contractor's balance sheet, which is why it shows up so often in WIP reports and bonding conversations.

The same thing happens one tier down. The general contractor usually holds retainage from each subcontractor at the same or a lower rate than the owner holds from the GC. A drywall sub can wait months after its own scope is finished because the project as a whole has not closed out.

Typical retainage percentages and limits

Five to 10 percent is common in contracts. Many states cap retainage on public work, and some cap it on private work too, often with a step-down after the job reaches 50 percent complete. Federal contracts follow the Federal Acquisition Regulation, which leaves the amount to the contracting officer based on performance. Because the rules differ so much, check the state page before you sign: see prompt payment and retainage laws by state.

  • Contract rate: the percentage written into the prime contract or subcontract.
  • Reduction: some contracts or statutes cut retainage after a milestone, such as 50 percent complete.
  • Release trigger: substantial completion, final completion, or acceptance of the whole project.
  • Deadline: many prompt payment laws set a number of days after completion for release, with interest if it is late.

Common retainage mistakes

  1. Not tracking retainage by job and by sub, so nobody knows the real amount owed.
  2. Forgetting to bill for it. Retainage usually needs its own release invoice or final pay application.
  3. Missing closeout items like warranties, as-builts, or lien waivers, which gives the owner a reason to keep holding.
  4. Accepting a subcontract that holds more from the sub than the owner holds from the GC.

Related terms

Retainage connects to progress billing, AIA G702 pay applications, the punch list, and release of retainage. If retainage is not released on time, the mechanics lien deadlines in your state may still be running, so do not wait on it.

Smart Business Automator tracks retainage held and billed on every job and every subcontract, so the release invoice goes out the day the job qualifies. See how in construction accounts receivable automation.

Frequently asked questions

Is retainage the same as retention?

Yes. Retainage, retention, and holdback all describe money withheld from progress payments until the job is complete. The term used depends on the region and the contract form.

How is retainage recorded in accounting?

Contractors usually record retainage receivable as a separate asset account, and retainage payable to subs as a separate liability, so the balances can be tracked and billed on release.

Can retainage be held forever?

No. The contract sets the release trigger, and many state prompt payment laws set a deadline after completion and add interest on late release. Check the rules for your state and whether the job is public or private.

Do subcontractors get retainage released when their work is done?

Not automatically. Many subcontracts tie release to project completion, not the sub's own scope. Some contracts and some state laws allow earlier release for early-finishing trades, so negotiate it up front.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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