Retainage is holding your cash hostage. Here’s how to plan around it.

You earned the money, and you did the work. But 5% to 10% of every progress payment sits in someone else’s account for months, sometimes longer. That’s retainage, and for construction firms, it can quietly drain working capital and stall growth.

The good news: With the right financial planning, you can stop letting retainage dictate your cash flow.

What is retainage in construction?

Retainage (sometimes called retention or holdback) is the portion of a contractor’s payment that an owner or general contractor withholds from each progress billing until the project hits substantial or final completion. Typical amounts run between 5% and 10%, depending on the contract and applicable state law.

The purpose makes sense from the owner’s side:

• It encourages contractors to finish punch list items
• It protects against defects or incomplete work
• It offers some leverage against liens or delays

From the contractor’s seat? It means you fund labor, materials, equipment and overhead with less cash than you’ve earned.

Why retainage hurts more than you think

On paper, a project can look profitable. In your bank account, things can feel tight—even painful.

Retainage sits in a separate receivable, not as cash, so your operating cash flow lags behind your reported revenue. Spread that across several active jobs, and you could have six figures (or more!) of earned money sitting in clients’ accounts instead of yours.

That tied-up cash limits your ability to:

• Bid on new work that requires upfront mobilization
• Pay subs and suppliers on time
• Invest in equipment, training or new hires
• Cover payroll during slow billing periods

Subs feel it even more sharply. A trade that wraps its scope in month three might wait until month 14 to collect its retainage, long after overhead has eaten through the margin.

How do you plan around retainage?

You can’t always eliminate retainage, but you can absolutely manage it. Here are five strategies to build into your financial playbook.

1. Negotiate better terms upfront

Retainage isn’t always set in stone, especially on private projects. Before signing:

• Push for 5% instead of 10%, where you can
• Propose step-downs (for example, a reduction at 50% completion)
• Offer a retention bond or letter of credit as an alternative
• Cap retainage at a dollar amount on large contracts

2. Build retainage into cash flow forecasts

Don’t lump retainage into general accounts receivable and hope for the best. Separate it. Your forecast should show gross billings, retainage withheld and net cash by period (your WIP schedule is the natural place to track this, alongside earned revenue). Stress-test what happens if release dates slip by 30, 60, or 90 days.

3. Track retainage like its own receivable

Maintain an aging schedule by project that captures:

• Total retainage outstanding
• Expected release date
• Status (pending inspection, in dispute, invoiced)
• Days outstanding past expected release

Review it monthly. Retainage that gets forgotten is retainage that takes far longer to collect.

4. Mirror terms down to your subs

If the owner holds 10% from you, hold no more than 10% from your subs. Otherwise, you fund their retainage out of your own margin. Communicate expected release dates so subs can plan their cash, too, which reduces tension and disputes later.

5. Close out decisively

Retainage often sits longer than necessary because of administrative delays. Finish punch lists quickly, submit closeout documents promptly, and request release the moment contractual milestones are met. Document everything: pay applications, approvals, sign-offs and correspondence.

A quick example: What 10% retainage costs you

Picture a $1.2 million job billed evenly over 12 months with 10% retainage:

By month 12, you’ve earned the full $1.2 million in revenue, but $120,000 sits in retainage receivable instead of your bank account. You’ve funded 12 months of costs without that cash.

Don’t let retainage catch you off guard

Retainage is predictable when you plan for it and painful when you don’t. The contractors who manage it well treat it as a known cash flow constraint, build it into every forecast and follow up aggressively on release.

The team at Kinexus specializes in construction accounting and advisory services, so we understand the cash flow pressures in your industry from the inside out. Contact our team today to build retainage into a financial strategy that keeps your cash working for you.