Freelance Retainer Agreement: What to Include (With a Worked Example)
Educational information, not legal advice. Have an attorney review an agreement you will rely on, especially for larger retainers.
A retainer turns irregular project income into a predictable monthly amount, but only if the agreement is specific. Vague retainers become unlimited work for a fixed fee. This guide lists what to put in writing, then runs one example.
For choosing the price, see retainer pricing. This page is about the agreement.
The clauses that matter
- Parties and term. Who the agreement is between, the start date and whether it renews monthly.
- What the retainer buys. Either a number of hours or a defined list of deliverables. Say which.
- Fee and billing date. The monthly amount and when you invoice (many freelancers invoice at the start of the month).
- Hours and tracking. How you report hours used, and how often.
- Rollover. Whether unused hours carry over, and for how long. Many freelancers say they expire at month end.
- Overage. The hourly rate for work beyond the included hours, and whether the client must approve it first.
- Response time. What priority the client gets, such as replies within one business day. Do not promise availability you cannot keep.
- Out-of-scope work. How new projects are quoted separately.
- Payment terms and late fees. See how to calculate a late fee.
- Termination. A notice period, usually 30 days, and payment for work done.
- Ownership and confidentiality. Who owns deliverables and what stays private.
- Price review. When the rate can change, with notice.
The contract checklist covers general freelance contract clauses.
Worked example
Terms: 12 hours a month at a $90 standard rate, with a 10 percent stability discount.
| Item | Calculation | Amount |
|---|---|---|
| Retainer fee | 12 × $90 × 0.90 | $972 |
| Effective rate | $972 ÷ 12 | $81.00 per hour |
| Overage rate | standard rate | $90 per hour |
Month 1: the client uses 10 hours. Under an expiry rule, the unused 2 hours expire, and you still bill $972. The effective rate for that month is $972 ÷ 10 = $97.20 per hour.
Month 2: the client needs 16 hours. You bill $972 plus 4 overage hours × $90 = $360, for $1,332 total. The effective rate is $1,332 ÷ 16 = $83.25 per hour.
Check the numbers against your minimum rate. If your calculator minimum is $86, the 10 percent discount only works when clients use fewer hours than included; otherwise use a smaller discount.
Sample wording to adapt
"The retainer covers up to 12 hours per month for $972, invoiced on the first of the month and due within 15 days. Unused hours expire at month end. Additional hours require written approval and are billed at $90 per hour. Either party may end this agreement with 30 days' written notice."
Mistakes to avoid
- No cap on included work.
- No notice period, which leaves you with sudden income loss.
- Forgetting to track hours, so you cannot show value at renewal.
Tools
The Freelance Rate & Quote Calculator in our shop shows your effective rate per project, and the Proposal & Quote Template Pack includes a scope checklist and change request template. You can also track retainer hours with invoicing software such as FreshBooks, whose Plus plan lists client retainers (per its published pricing page, checked 2026-10-06; we have not tested it).