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BillingMarch 12, 20265 min read

What Is Retention in Construction?

Retention (retainage) can tie up 5-10% of every invoice. Learn how retention works, when you can collect it, and how to track it so you don't leave money on the table.

If you have spent any time in the electrical trade, you have dealt with retention. Some people call it retainage. Same thing. It is money you earned, sitting in someone else's bank account, and you are waiting to get it back. Here is what retention is, how it works, and what you do to stop losing sleep over it.

What Is Retention (Retainage)?

Retention is a percentage of each progress payment, typically 5% to 10%, withheld by the general contractor or project owner until the project is substantially complete. The idea is simple: they hold back a chunk of your money as a guarantee you will finish the work and correct any deficiencies.

On paper, it sounds reasonable. In practice, you are financing someone else's risk with your own cash flow.

Why Retention Exists

Retention protects the GC and the owner. If a subcontractor walks off the job or refuses to fix deficient work, the withheld funds give the GC leverage and a pool of money to hire someone else to finish the scope. It is an old mechanism. Retention has been standard in construction contracts for over a century.

The problem: it penalizes reliable contractors the same as unreliable ones. You have a perfect track record and you are still getting 10% of every invoice held back.

How Retention Works in Practice

Let's walk through a simple example:

  1. You submit a progress invoice via AIA billing for $100,000.
  2. The GC withholds 10% retention ($10,000).
  3. You receive $90,000.
  4. At substantial completion, you submit a retention release invoice for the accumulated retention.
  5. The GC (eventually) pays the retention balance.

The word "eventually" is doing a lot of work in the sentence above. More on this below.

When You Collect Retention

The trigger for retention release varies by contract. It usually falls into one of these categories:

  • Substantial completion, meaning the project is usable for its intended purpose, even if minor items remain.
  • Punch list completion, meaning all deficiencies identified during the final walkthrough are resolved.
  • Final acceptance by the owner, meaning the owner formally signs off on the project.
  • A specific number of days after substantial completion. Some contracts specify 30, 60, or 90 days.

Read your contract carefully. If it says retention is released upon "final acceptance" instead of "substantial completion," you are looking at months longer than you expect.

State Laws on Retention

Retention is not a free-for-all. Many states have laws limiting how much contractors withhold and how long they hold it:

  • Several states cap retention at 5%, regardless of what the contract says.
  • Some states require retention funds to be held in escrow in a separate, interest-bearing account.
  • A growing number of states ban or limit retention on public projects entirely.
  • Some states mandate retention release within a set number of days after substantial completion, with penalties for late payment.

The specifics vary widely. Check your state's prompt payment act and retention statutes. If your GC is holding retention past the statutory limit, you have legal recourse. In some states, you recover attorney's fees and interest on top of the retention owed.

How Retention Adds Up

Retention feels like a small percentage until you do the math across a full year. Say you do $500,000 in work annually and your contracts carry 10% retention. You now have $50,000 sitting in someone else's bank account at any given time. Not your bank account. Theirs.

Now consider you are still paying your electricians, buying material, covering insurance, and making truck payments with the remaining 90%. The $50,000 gap is real money. It is the difference between making payroll comfortably and sweating every Friday.

For larger shops doing $1M or more per year, retention balances easily reach six figures. In other words, a line of credit worth of cash you have earned but are not allowed to touch.

How to Track Retention

You will not collect what you do not track. At a minimum, you need to know:

  • Which invoices have retention withheld
  • The retention percentage and dollar amount per invoice
  • The total retention held per project
  • When each project hits substantial completion
  • When the retention release invoice was sent
  • When the retention payment is due and when it was received

If you are tracking this in a spreadsheet, you already know how easy it is to lose a $5,000 retention balance on a job from four months ago. It falls through the cracks because nobody is looking at it.

Common Retention Problems

Every electrical sub has a retention horror story. Here are the ones showing up over and over:

  • GCs "forgetting" to release retention. The job is done, punch list is clear, and somehow your retention invoice sits in a pile for months. Funny how this works.
  • Disputes about punch list items. The GC adds new items to the punch list outside your scope, then uses the open punch list as a reason to withhold retention.
  • Retention held past statutory limits. Some GCs hold retention far longer than the law allows, banking on the fact most subs will not hire a lawyer over it.
  • Pay-when-paid clauses. The GC claims they will not release your retention until the owner releases theirs. Depending on your state, this is or is not enforceable.
  • GC insolvency. The worst case. The GC goes under and your retention disappears with them. This is why escrow requirements exist in some states.

Tips for Managing Retention

You will not eliminate retention. But you manage it so it does not quietly drain your business:

  1. Negotiate retention terms before you sign. Push for 5% instead of 10%. Ask for retention to drop to 0% after your scope is substantially complete, even if the overall project is not. This is also the time to negotiate your schedule of values — both documents shape your cash flow for the entire job.
  2. Put a release date in the contract. Vague language like "upon final completion" gives the GC room to delay. Specify a number of days after substantial completion.
  3. Track retention like a receivable. It is not a discount. It is money owed to you. Put it on your aging report and follow up the same way you would any unpaid invoice.
  4. Send the retention release invoice immediately. The day you hit substantial completion, send it out. Do not wait for the GC to ask for it.
  5. Know your state's laws. If the GC is holding retention past the legal limit, a well-written letter citing the statute often gets results faster than a phone call.
  6. Document everything. Keep records of completion dates, punch list sign-offs, and every communication about retention release. If it ever goes to dispute, paper wins.

Stop Tracking Retention by Hand

Retention tracking is one of those things looking simple until you have ten active projects with different retention rates, different release triggers, and different GCs who all pay on their own timeline. Faraday tracks retention automatically across every invoice and every project, so you always know exactly how much is being held, where, and when to collect it.

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