The client onboarding checklist for agencies
A signed contract is the start of the riskiest week in the client relationship — assets to collect, access to gather, expectations to set. This checklist gives every new client a clean, consistent start, so delivery begins faster and nothing slips through the cracks. Copy it below, or build it as a branded onboarding flow your clients complete in one link.
The complete process, from signed contract to the 30-day review.
Phase 1 — Close the loop (Day 0)
- Countersign the contract / SOW, and save it where the team can find it
- Send a warm welcome email + a "what happens next" summary
- Issue the deposit / first invoice
- Set the client up in your billing and project tools
Phase 2 — Gather everything (Days 1–2)
- Send one intake questionnaire (goals, brand, audience, competitors)
- Collect brand assets (logos, fonts, guidelines)
- Collect access via a password manager or secure form - never plain-text email or Slack
- Confirm key contacts and the single approver on the client side
Phase 3 — Set expectations (Days 2–3)
- Share the project plan / milestones and confirm the scope
- Agree the communication cadence, channels and response times
- Agree the approval process - who signs off, and the feedback turnaround
- Set up the client portal or shared workspace
Phase 4 — Kick off (Days 3–5)
- Hold the kickoff call (agenda sent in advance)
- Confirm the success metric + first deliverable date
- Assign internal owners (RACI if useful)
Phase 5 — Deliver early value (Week 1–2)
- Ship a quick, visible win
- Send the first status update
Phase 6 — 30-day review
- Review progress vs. expectations and capture feedback
- Confirm the relationship is on track (reduce early churn)
- If it's going well, ask for a testimonial or referral
pick a version, copy it, or download as .docx or .pdf — then make it yours.
How to fill it in
Phase 1 - close the loop
Countersign, send a warm welcome, and invoice the deposit the same day the deal closes - momentum is highest now.
Phase 2 - gather everything
Send one intake form, not ten emails. Collect logins via a password manager or secure vault, never plain text.
Phase 3 - set expectations
Agree the cadence, the channels, and who approves work. Unclear approval is the top cause of revision spirals.
Phase 4 - kick off
Send the agenda in advance, confirm the success metric, and assign internal owners so nothing is everyone's job and no one's.
Phase 5 - deliver early value
Ship one small, visible win in the first two weeks - it turns a nervous new client into a confident one.
Phase 6 - 30-day review
Book it during kickoff, not when something is already wrong. Use it to catch drift before it becomes churn.
A checklist mid-onboarding
A realistic, filled-in version - so you can see what good looks like before you start.
Client: Acme Roasters - Brand refresh | Owner: Maya (account lead) Phase 1 - Close the loop (Day 0) [x] Countersigned MSA + SOW #AR-01, saved to the team drive [x] Welcome email sent + "what happens next" one-pager [x] 50% deposit invoiced (Net 15) [x] Acme set up in Harvest + the project board Phase 2 - Gather everything (Days 1-2) [x] Intake form sent (brand goals, audience, competitors) [x] Logo files, fonts + existing guidelines received [x] Access to Google Workspace + Instagram via 1Password [ ] Confirm approver - waiting on client (chasing Fri) Phase 3 - Set expectations (Days 2-3) [x] Shared milestone plan; scope confirmed in portal [x] Cadence: weekly Thursday check-in over Slack Connect, 1-day response [x] Approval: Dana signs off; feedback within 3 business days [x] Client portal live Phase 4 - Kick off (Days 3-5) [x] Kickoff call held (agenda sent Tuesday) [x] Success metric agreed: refreshed brand kit by week 6 [x] Owners assigned - Maya (account), Theo (design) Phase 5 - Deliver early value (Week 1-2) [x] Moodboard + 2 logo directions shared (the early win) [ ] First weekly status sent Phase 6 - 30-day review [ ] Booked for the 28th
Common mistakes
- Collecting passwords over email or Slack instead of a password manager - a security and audit nightmare.
- Skipping the kickoff agenda, so the call wanders and no decisions get made.
- Never naming an approver, so feedback arrives from three people who disagree.
- Waiting until something breaks to do the 30-day review - by then the client has already gone quiet.
- Front-loading paperwork so the client's first experience feels like admin, not progress.
Build it as a live tool (instead of a static doc)
This checklist works — but you still have to send it, chase it, and rekey what comes back. Forge turns it into a branded onboarding flow: clients complete one link, assets and access land where your team works, and nothing gets lost.
Frequently asked questions
What should a client onboarding checklist include?
Contract/SOW, welcome + expectations, intake questionnaire, brand assets, account access, kickoff, and a 30-day review.
How long should agency onboarding take?
Aim to go from signed to kickoff within 3–5 business days; faster onboarding reduces churn and speeds time-to-value.
Can I automate client onboarding?
Yes — Forge builds a branded onboarding flow that collects everything up front and routes it to your team, no building or hosting required.