A retention payment holds money back until a job is finished
A retention payment is money you withhold from a contractor, vendor, or service provider until they complete work or meet agreed conditions. Instead of paying the full amount when the invoice arrives, you keep back a percentage—often 5 to 10 percent—and release it only after you verify the work is done correctly, the warranty period passes, or a project milestone is reached.
Retention is most common in construction, where a general contractor might withhold 10 percent of a subcontractor's invoice until the job passes inspection. But it also appears in software development, home repairs, landscaping, and any project where the quality or completion of work matters more than speed of payment.
The retained amount protects you: if the contractor disappears, does shoddy work, or leaves the job unfinished, you have leverage and cash on hand to hire someone else to fix it. For the contractor, it creates incentive to finish well and stick around to collect the final payment.
Key Takeaways
- Retention payments are a percentage of an invoice you hold back until work is verified complete or a warranty period ends.
- The retained amount gives you recourse if the contractor fails to finish, does poor work, or leaves defects behind.
- Retention percentages and release conditions must be written into the contract before work begins, not added later.
- The contractor can refuse to start work if retention terms are unreasonable, so the amount and timeline should be negotiated upfront.
- Releasing retention early requires written confirmation that conditions have been met—a signed inspection report, certificate of completion, or warranty letter.
How retention works in a typical construction project
A homeowner hires a contractor to build a deck for $10,000. The contract states that 10 percent ($1,000) will be retained until 30 days after the deck is completed and inspected. The contractor invoices for the full $10,000 when the deck is finished. You pay $9,000 immediately and hold the $1,000.
After 30 days with no defects, you pay the remaining $1,000. If the contractor had left the deck with loose boards or poor sealing, you could use that $1,000 to hire someone to fix it, or you could withhold it entirely if the work is abandoned.
The 30-day hold period is called a defect liability period or warranty period. It gives you time to spot problems that might not show up immediately—settling, warping, or paint failure. Some contracts extend retention for six months or a year on larger projects.
Retention percentages and what they cover
Retention amounts vary by industry and project size. In construction, 5 to 10 percent is standard. On large infrastructure projects, retention can be 10 to 15 percent. Software development contracts often retain 20 to 30 percent until testing is complete.
The retained money typically covers three things: finishing incomplete work, fixing defects discovered during the warranty period, and paying for liens or claims filed by suppliers or workers the contractor hired. If the contractor owes money to a subcontractor and doesn't pay, that subcontractor can file a lien against your property—retention gives you a buffer to settle those claims before releasing final payment.
Some contracts specify that retention is released in stages. For example, a kitchen renovation might release 50 percent of retained funds when framing is done, another 25 percent when electrical and plumbing pass inspection, and the final 25 percent 30 days after the homeowner signs off on the finished work.
When retention must be written into the contract
Retention terms must be in the signed contract before work begins. You cannot add retention to an invoice after the fact or change the percentage mid-project without the contractor's written consent. If you try, the contractor can stop work, demand full payment for what they have done, or take you to small claims court.
The contract should specify: the retention percentage, when it is calculated (on each invoice or only the final one), what conditions must be met to release it, and the timeline for release. For example: "10 percent of each invoice is retained until 30 days after project completion and final inspection by the homeowner."
If you are hiring through a platform like HomeAdvisor or Angie's List, their standard contracts often include retention clauses. If you are hiring independently, use a written agreement—even a one-page email confirmation is better than a handshake deal. Without written terms, you have no legal ground to withhold payment.
How to release retention payments
Releasing retention requires proof that conditions have been met. This proof might be a signed inspection report, a certificate of completion from a building inspector, a warranty letter from the contractor, or simply your written confirmation that you have tested the work and found no defects.
Send the contractor a written notice stating that retention conditions have been satisfied and you will pay the retained amount by a specific date. Keep a copy for your records. If the contractor disputes that conditions were met, you have documentation of what you required and when you checked.
If defects appear during the warranty period, do not release retention. Document the defects with photos or a written list, notify the contractor in writing, and give them a deadline to fix them. If they refuse or fail to show up, you can use the retained funds to hire another contractor to complete the repairs.
What happens if you withhold retention unfairly
If you withhold retention after conditions are clearly met and the contractor has asked for payment in writing, the contractor can sue you for the amount plus interest and legal fees. Courts generally require that retention be released within a reasonable time after the work is done—usually 30 to 60 days unless the contract specifies longer.
Some states have laws that require you to pay interest on retained funds if they are held longer than a certain period. Check your state's construction lien laws or contractor regulations to see if interest accrues on retention. A few states require that retained funds be held in a separate account and not mixed with your business operating funds.
If the contractor files a lien against your property because you refused to pay retention without cause, removing that lien can be expensive and time-consuming. Withhold retention only when you have a legitimate reason documented in writing.
Retention in non-construction contexts
Software development contracts often use retention to hold back payment until the code passes user testing or the system goes live. A vendor might retain 20 percent of a website redesign fee until the site is live and performing at agreed speeds.
Staffing agencies sometimes retain a percentage of a worker's pay until the worker completes a probation period or training. Freelancers and consultants may negotiate retention clauses with clients who want to hold back final payment until a report is delivered or a project milestone is hit.
In all cases, the same principle applies: retention is a tool to ensure performance, not a way to get free work or avoid paying for completed services. The amount should be proportional to the risk, and the release conditions should be clear and achievable.
Frequently Asked Questions
Can I withhold retention if the contractor did not finish on time?
Only if the contract includes a penalty clause for late completion. Retention is meant to ensure quality and completion, not to punish delays. If you want to charge a penalty for lateness, that must be a separate clause in the contract stating the daily or weekly amount. Withholding retention beyond the agreed period without a contractual reason can expose you to a lawsuit.
What if the contractor refuses to accept a contract with retention?
That is their right. Retention is negotiable. If a contractor balks at 10 percent retention, you might offer 5 percent, a shorter hold period, or staged release. If they refuse any retention, you can hire someone else or accept the risk of paying in full upfront. Some contractors have strong reputations and can command full payment; others need retention to build trust with new clients.
Do I have to release retention if the contractor goes out of business?
No. If the contractor is insolvent or has abandoned the job, you can use retained funds to pay another contractor to finish or fix the work. Keep records of what you spent and why. If the original contractor sues, you can show that you used the retention to cover costs they created by failing to complete the job.
Can retention be released in installments?
Yes, if the contract says so. You might release 50 percent of retention after the warranty period ends and the remaining 50 percent after six months if no new defects appear. This staged approach protects you longer while still giving the contractor some cash flow. The schedule must be in the contract before work starts.
What if I lose the receipt or inspection report proving the work was done?
Take photos or video of the completed work before releasing retention. Get a written sign-off from the contractor stating the work is complete and meets the contract terms. If a dispute arises later, you have evidence. Without documentation, a court may side with the contractor if they claim you withheld retention without cause.