Forty five days, then ten: the California retention dates that decide whether the job made money

Retention is the last five or ten percent of every billing, held back for a year of work and released after everyone has stopped thinking about the job. It is also, on most contracts, roughly the entire profit. You do not make money on a job and then collect retention. You collect retention and that is when the job made money.

Which is why it is strange how few contractors can name the date theirs is due. California names it. On private work the owner releases retention within 45 days after completion of the work of improvement (Civ. Code s.8812), and a direct contractor who receives it passes each subcontractor's share down within 10 days of receipt (Civ. Code s.8814). On public work the retention is capped at 5 percent and released 60 days after completion.

Two numbers and one habit. This page is the private clock, the public clock, a worked example with real dates showing the trap that catches subcontractors, and the diary discipline that makes the whole subject boring.

The private clocks

Notice the shape. The owner's clock runs from an event on the job. Your clock, if you are a subcontractor, runs from an event in somebody else's bank account. The 10 days under Civ. Code s.8814 does not start when you finish, when you invoice or when you ask. It starts when the money arrives upstairs.

That is not a technicality, it is your entire follow-up strategy. The useful question to the prime's office is never "when is my retention coming." It is "has the owner released retention yet," because a yes to that question starts a 10 day statutory clock with your name on it, and a no moves the conversation up one link to the owner's 45 days under Civ. Code s.8812.

Completion of the work of improvement is the trigger for the owner's 45 days, so it is worth pinning that date rather than assuming it. It is the same event the lien calendar runs off, which is the reason the next section exists.

The trap: your lien clock can close before your retention is due

This is the paragraph that pays for the page. Run one completion date through both calendars at once and watch them cross.

Take a subcontractor on a private job that reaches completion on 15 May 2026. The owner records a Notice of Completion on 28 May 2026, comfortably inside the 15 days a Notice of Completion allows (Civ. Code Part 6).

Read 27 June and 29 June together. The subcontractor's lien window closed two days before the owner was even obliged to release the retention. Wait politely for your money and the security you would have used to collect it expires first, while nobody has technically done anything wrong.

Without a recorded Notice of Completion the lien deadline is 90 days after completion, so 13 August 2026 on these dates for a sub under Civ. Code s.8414 and for a direct contractor under Civ. Code s.8412. That is a comfortable gap. With a Notice of Completion recorded it is not, and the party who decides whether one gets recorded is not you.

So the rule that falls out is simple and it is a diary rule, not a legal one. On any job with retention outstanding, check the county recorder for a Notice of Completion in the weeks after you finish. If one is recorded, your lien date is now 30 days out if you are a subcontractor, supplier or equipment lessor (Civ. Code s.8414) or 60 days if you signed with the owner (Civ. Code s.8412), and it is probably earlier than the day your money is due. The California lien deadline calculator counts both versions from a completion date in a few seconds, free and without a signup, and the California lien deadline guide has the full table.

Recording a lien for retention that is not yet late is not aggression, it is sequencing. The lien secures the money. The retention clock decides when it is due. They are separate questions and only one of them will wait for you.

Public work: 5 percent, 60 days, and a bond behind it

Public retention runs on a different pair of numbers and it is generous compared with what most private contracts try. The cap is 5 percent, and release is 60 days after completion.

On the same completion date, 15 May 2026, a public job's retention is due by 14 July 2026. If your private contract on the job across town is holding 10 percent and your public one is capped at 5 percent, that difference is worth naming in the bid comparison, because it is working capital rather than paper.

Public work also gives you a second route to the same money. A payment bond is required on public works over $25,000 (Civ. Code s.9550), and a claim against the surety does not depend on an agency's internal payment cycle. Suit on that bond runs six months (Civ. Code s.9558). Alongside it sits the public works stop payment notice, which has its own deadline under Civ. Code Part 6 ch. 5 and reaches funds the agency has not paid out yet. The stop payment notice guide covers when that is the faster instrument than waiting on the 60 days.

Do not sign the final unconditional release for retention you have not banked

Retention and releases fail together, and always in the same way. The job wraps, the closeout package arrives, and in it is an Unconditional Waiver and Release on Final Payment (Civ. Code s.8138). Sign it because the job is finished and you have given away your claim rights on money that is not due to leave the owner's account for another six weeks.

The sequence that keeps you whole is the same one that keeps everybody moving:

• Final invoice, retention included, goes out with a Conditional Waiver and Release on Final Payment (Civ. Code s.8136). It costs you nothing because a conditional waiver only bites when the funds actually clear.
• The retention check clears your account.
• Then, and only then, the Unconditional Waiver and Release on Final Payment (Civ. Code s.8138) goes back.

Run that against the dates above. Completion 15 May 2026, retention due from the owner 29 June 2026 (Civ. Code s.8812), down to you by 9 July 2026 (Civ. Code s.8814). An unconditional final release signed on 20 May because the closeout binder was due gives away security on money that will not reach you for another seven weeks. The conditional form answers the same request on the same afternoon and quietly does nothing until the money moves. There are only four statutory forms and a document that is not one of them is not effective at all, which is covered in the California lien releases and waivers guide.

When the retention check is late

Late retention behaves like any other late payment, so work it the same way and in the same order.

Start dated. One message naming the completion date, the 45 days under Civ. Code s.8812 or the 10 days under Civ. Code s.8814, the amount, and one question: when is it being released. If a specific item of work is genuinely in dispute, the shape of the rule the code uses on payments is instructive, because a good-faith dispute lets 150 percent of the disputed amount be withheld and nothing beyond that (BPC s.7108.5). A punch list item worth a few thousand dollars is not a reason to hold six figures of retention on the rest of the job, and saying so with an arithmetic line attached moves files.

Keep your preliminary notice in the same folder while you do it. Served within 20 days of first furnishing (Civ. Code s.8204), it is what makes the lien, the stop payment notice and the bond claim available at all, and a notice served late still protects the 20 days before service and everything after. The 20 day preliminary notice guide has the mechanics.

If the dated message goes nowhere, the ladder above it is short and it has a fixed order: the prompt payment clock, the stop payment notice, the lien, the foreclosure suit. That order and the deadline on each rung is in what to do when a California client will not pay, and the underlying payment clocks, 30 days from the owner (Civ. Code s.8800) and 7 days down the chain (BPC s.7108.5), are in the California payment deadlines guide.

The diary discipline

Everything above collapses into three lines you write on the day you demobilize, while the job is still in your head:

1. The completion date.
2. The retention amount, as a number, per job.
3. Two dates counted from that completion date: your lien date under Civ. Code s.8412 or s.8414, and the retention release date under Civ. Code s.8812 or the public 60 days.

Then one recurring check: has a Notice of Completion been recorded. That single question is what moves your lien date, and it is the only variable on this page you do not control.

Contractors lose retention by forgetting it, not by being cheated out of it. Nobody writes to tell you the 45 days ran out. There is no reminder, no statement and no interest showing up on an account somewhere, so the money simply ages quietly into the pile of jobs you would rather not think about. The flip side is that every date here is knowable the day you finish, which makes this a calendar problem with a five minute solution.

On AEC Stack there is no monthly subscription. The platform fee is 2.5 percent of each invoice processed through the platform, so retention sits in the same record as the billing it came out of instead of in a folder you stopped opening.

Open your last three closed jobs and write down the retention balance on each one. If any of them is past 45 days from completion, you are not waiting, you are owed. Open a working demo business file and get every open job's completion date and retention balance in one place before the next one closes out.