How-to

How to Create a Retainer Agreement

A retainer agreement needs to state exactly what's covered each billing period, the fee and when it's charged, and — the two clauses most disputes actually trace back to — what happens when work goes past what's included (overage), and whether unused time carries over or resets. Start from a template built for retainer work, fill in your real numbers, and send it for signature before the first billing period starts.

Step by step

1. Start from a retainer-specific template. A one-off project contract assumes a start and an end; a retainer is ongoing and recurring, with a different set of clauses (billing cycle, overage, renewal) a project contract doesn't need.
2. Define exactly what's included, each period. State the services and either a number of hours or a defined set of deliverables covered by the retainer fee per billing cycle, and name what's explicitly out of scope. "Ongoing support" as the entire scope description is where retainer disputes start — a client's idea of "support" and yours can diverge fast without a stated boundary.
3. Set the fee and billing cycle. State the retainer amount and when it's billed — monthly in advance is standard, since it's what actually makes a retainer function as reserved capacity rather than a running tab.
4. Add overage terms — don't skip this. State what happens when requested work exceeds what the retainer covers in a period: an hourly rate for the overage, deferral to next period, or a hard cap. Without this clause, "extra" work either goes unpaid or becomes an argument, and both outcomes are worse than just stating the rate upfront.
5. Decide the unused-time policy explicitly. If a period's included hours go unused, do they roll over, or reset? Clients often assume rollover by default; many retainer agreements are actually written as "use it or lose it" specifically to keep the arrangement simple. Whichever you intend, say so — don't leave it implied.
6. Set term, renewal, and termination notice. How long the agreement runs (often month-to-month after an initial term), how it renews, and how much written notice either side needs to end it. A retainer with no stated notice period can leave a client feeling stuck or a freelancer with no clean way to exit a bad-fit arrangement.
7. Send it for signature before the first billing period. Get it signed before invoicing the first retainer payment, not after — same reasoning as any contract: it should govern the work from the start, not catch up to it.

Common mistakes

• No overage clause. The single most common gap — without it, scope creep inside a retainer has no natural stopping point or cost attached to it.
• An unstated assumption about rollover. Silence on this reads as "of course it rolls over" to a client and "of course it doesn't" to a freelancer — write down whichever one you actually mean.
• Treating a retainer like a project contract with a monthly price. If the scope, billing cycle, overage, and renewal terms aren't retainer-specific, it's really just a recurring invoice with no real structure behind it.

Start from the real template

A retainer agreement sets up an ongoing services relationship for a recurring fee — a defined amount of time or scope available each billing period, with clear terms for what happens if a client needs more than that.

What it includes: Services description, Retainer fee and billing cycle, Overage terms, Unused-time and rollover policy, What's out of scope, Term and renewal, Termination, Independent contractor status, Limitation of liability, Governing law.

See the full template details →