After signing, onboard your client properly — the first month sets the tone for everything that follows. It doesn't need to be formal or reviewed by a lawyer. But it does need to cover the specific things that cause problems when they're left vague.
Here's what that looks like in practice.
The scope section — the most important part
This is where most freelancers get it wrong.
Vague scope language:
- "Ongoing marketing support"
- "Social media management"
- "Development retainer"
Specific scope language:
- "Up to 20 hours/month of social media management, including content creation (4 posts/week on Instagram and LinkedIn), community management, and monthly performance reporting"
- "Up to 15 hours/month of front-end development, including bug fixes, feature updates, and code reviews"
Make sure your rate reflects the real work — read how to price a retainer before you sign anything.
The hours and billing section
| What to include | Why it matters |
|---|---|
| Included hours | The baseline both sides reference |
| Billing date | Specific date, not "end of month" |
| Overage rate | Agreed upfront, not negotiated later |
| Rollover policy | Do unused hours carry over? |
| Payment terms | How many days to pay after invoice |
💡 On rollover hours
Most freelancers prefer not to roll over unused hours. You're selling availability and expertise each month, not a bank of hours. Either answer is fine — just make sure it's agreed explicitly.
The communication section
Set expectations about how and when you're reachable. It doesn't need to be extensive.
"I'm available Monday–Friday during standard business hours. I aim to respond within one business day."
If you have preferences (email over WhatsApp, Notion over Slack), note them. Retainer clients sometimes treat their freelancer as on-call. Setting clear expectations early prevents this.
The termination section
How much notice does either party need to give?
30 days is standard for most retainers. 60 days makes sense for larger ones where the income is significant.
Make it mutual — both you and the client have the same notice period. Also specify what happens to work in progress if the retainer ends: are you completing current projects, handing over files, or both?
The intellectual property section
For most creative and technical work: the client owns what you produce once they've paid for it. State this explicitly. Also state that you retain rights to work produced before full payment.
How simple it can actually be
You don't need a 10-page document. A one-page email covering scope, hours, billing, communication expectations, and termination is sufficient for most freelance retainers.
The goal is for both you and your client to be able to read the agreement six months from now and have the same understanding of what it says. If both sides walk away from it with different interpretations, it's not specific enough.
Updating the agreement
Retainer agreements should be living documents. When scope changes significantly, update it. When rates change, update it.
A quick email saying "as discussed, I'm updating our retainer to reflect X starting next month — let me know if you have any questions" is sufficient. You don't need a new formal contract every time.
Use a client portal during the engagement so clients always know where they stand against the agreed hours.