Construction Retainage Explained

Construction retainage (also called retention) is a portion of each progress payment that the owner holds back until the project is complete. Standard residential retainage is 5 to 10% of each invoice.

Retainage gives the owner leverage to ensure the contractor finishes punch list items and final close-out tasks. Without retainage, contractors can lose interest in punch work once the bulk of payment is in hand. With retainage, the final 5 to 10% becomes the gating event that gets the project closed.

On a $100,000 project with 10% retainage, every progress invoice is paid at 90% and the remaining 10% accumulates as retainage. A $25,000 invoice at the framing milestone pays $22,500 to the contractor and $2,500 stays in retainage.

At project completion, retainage equals 10% of total contract value. The owner releases retainage after the punch list is signed off and final lien waivers are received. Some contracts release half of retainage at substantial completion and the other half at final acceptance.

Most US states cap retainage on residential and public work. California caps retainage on private residential work at 10%. Texas caps at 10% with a 30-day release window after final completion. Florida caps at 10% on contracts under $500,000.

Public-work retainage rules are usually stricter, with 5% caps and statutory release windows of 30 to 60 days. Residential rules vary by state but trend toward 5 to 10% caps with 30 to 60 day release.

Check your state contractor licensing board or AG before agreeing to retainage above 10% on residential work. ContractShield contracts apply state caps automatically based on project location.

Retainage is released after three events: punch list is signed off, final lien waivers are received from the contractor and subs, and the final certificate of occupancy or final inspection passes (on permitted work). Some contracts also require the contractor to provide a final unconditional lien waiver before release.

Standard release window is 30 to 60 days after final completion. The contract should specify the exact triggers and the timeline. If the contract says 'release upon completion' without defining completion, the contractor and owner will likely disagree at close-out.

Late retainage release is the most common contractor dispute at close-out. Remedies vary by state. Most states allow contractors to file a mechanics lien against the property if retainage is wrongfully withheld. Some states impose interest penalties on late release (Texas: 1.5% per month).

The contractor's path: send a written demand for release, then file a mechanics lien within the state-specific deadline (usually 60 to 120 days after final completion). The lien creates a cloud on title that the homeowner has to clear before refinancing or selling.

The homeowner's path if punch list is incomplete: document the incomplete items, send a written notice of withholding with the specific items, and offer to release retainage when each item completes. Document everything in writing.

Yes, retainage strains contractor cash flow because the held-back portion is the contractor's margin on most jobs. Many contractors price retainage into the contract by adding 2 to 4% to the total to offset the float cost.

Some states allow contractors to substitute a surety bond for retainage. The contractor pays a small bond premium and the owner waives retainage. This protects the owner (the bond pays out if the contractor fails to complete) while freeing contractor cash flow.

On smaller residential jobs ($25,000 and under), retainage is often skipped entirely because the cash flow burden outweighs the protection.

A deposit is paid at contract signing, before work starts. Retainage is held back from each progress payment, accumulating across the project.

Deposit protects the contractor by funding pre-mobilization material orders. Retainage protects the owner by ensuring the contractor finishes punch work. The two work together. A standard contract has both: 10 to 20% deposit at signing, and 5 to 10% retainage held from each progress invoice.

Every ContractShield contract includes a default 10% retainage held in Stripe escrow. Each milestone payment auto-pays the contractor at 90% with the remaining 10% accumulating in the escrow retainage account.

At project close-out, the punch list module on the platform tracks signoff. When the punch list is fully signed, the retainage releases automatically from escrow to the contractor's bank account. Final lien waivers can be signed inside the platform too, removing the most common close-out friction.