Retainage on Public Works: Your Rights and How to Get It Released

Retainage — the percentage of each progress payment withheld until project completion — is standard on public works projects, typically 5–10% of each payment application. In theory, it incentivizes completion and provides a financial cushion against defective work. In practice, it can create significant cash flow problems for subcontractors, especially when release is delayed well past the sub's scope completion.

The Cash Flow Impact

Consider a $1 million subcontract with 10% retainage. By the time your work is complete, $100,000 of your earned revenue is being held. If the overall project takes another 12 months to complete after your scope is done, that $100,000 is essentially an interest-free loan from your company to the GC and owner for a full year.

On thin margins (5–8%), that retained amount can exceed your entire profit on the job. You've completed the work, paid your labor and materials, and now you're waiting — sometimes years — to collect the money you're owed.

For subcontractors managing multiple projects, the cumulative retainage balance can consume a significant portion of working capital.

Your Rights and Remedies

Many states have enacted prompt payment and retainage reform statutes specifically to address this problem. Key provisions to know:

- Retainage caps. Some states cap retainage at 5% or limit the period during which it can be held. - Early release provisions. Many public contracts allow subcontractors to request early retainage release once their scope is substantially complete, even if the overall project isn't done. - Prompt payment acts. Federal and state prompt payment laws impose deadlines on retainage release and provide for interest on late payments. - Substitution of securities. Some jurisdictions allow subcontractors to substitute securities (a letter of credit or certificate of deposit) in place of cash retainage.

To get your retainage released: 1. Submit a formal written request to the GC when your scope is substantially complete. 2. Include a punch list completion status and any required warranties. 3. Reference the applicable statute or contract provision. 4. Follow up in writing at regular intervals. 5. If the GC delays unreasonably, notify them that you will exercise your rights under the applicable prompt payment statute.

The Bottom Line

Retainage is a standard feature of public works contracts, but it does not have to be a permanent drag on your cash flow. Under PCC §22300, you have the right to substitute approved securities for retained amounts, allowing you to earn interest on money that would otherwise sit idle. On local agency projects, the Greenbook Section 9-3.2 specifies retainage at not less than 5% of each progress payment, with final payment due 35 days after Board acceptance. On Caltrans projects, Section 9-1.07 governs retainage at 5% with escrow substitution options.

Know your rights, exercise them, and pursue release aggressively once your scope is complete. Retainage that sits for months past your completion date is not the owner's money or the GC's money. It is your money, earned and owed.