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Free template · Sales & Clients

Client Onboarding Checklist

A client onboarding checklist covers everything between a signed agreement and productive work: welcome message, kickoff meeting, required assets and access, points of contact, communication expectations, schedule and the first deliverable. It removes the stalled first two weeks that damages otherwise good engagements.

Updated August 2026

What to include in your Client Onboarding Checklist

  • Client name, primary contact, decision maker and billing contact
  • Welcome message sent, with what happens next spelled out
  • Kickoff meeting booked with an agenda circulated in advance
  • Required assets: brand files, logins, site access, historical data, keys or codes
  • Systems access and who requests it on the client side
  • Agreed communication channel, response times and escalation contact
  • Schedule of milestones and review points
  • Invoicing details, purchase order numbers and payment terms confirmed
  • First deliverable date and definition of done
  • Internal handoff from sales to delivery with notes on what was promised

Practical guidance

Front-load everything you need

Build one asset request containing every file, login and piece of information you will need for the first month. Clients respond better to one clear list with a deadline than to repeated small requests, and it makes any delay visibly theirs to resolve.

Set the communication contract

  • One primary channel, named in writing.
  • Response time expectations in both directions.
  • Who can approve scope changes and how they are requested.
  • What happens when something is urgent.

Hand off properly from sales

Write down what was sold, what was implied, the client's actual objective and anything unusual agreed in the sales conversation. Ten minutes of handoff notes prevents a month of quiet scope drift.

How to use this template

  1. 1Trigger the checklist the moment the engagement is confirmed, not at kickoff.
  2. 2Send the required-assets list as a single request rather than drip-feeding it.
  3. 3Run the kickoff within five working days while momentum is high.
  4. 4Record what sales promised in the handoff notes so delivery does not rediscover it later.
  5. 5Close the checklist after the first deliverable and note anything that delayed you.

Filled-in example

Example

Filled-in example: monthly bookkeeping client

  • Welcome email sent day 1 with kickoff options and the asset list attached.
  • Assets requested — prior year accounts, bank feed access, payroll summary, chart of accounts.
  • Kickoff held day 4 — confirmed month-end close by working day 8, agreed on a single email thread per month.
  • Access — accounting software invite accepted day 5, bank feed authorised day 6.
  • Comms — primary contact is the owner, escalation is the practice manager, replies within one business day.
  • First deliverable — March management report due 10 April, includes cash summary and aged debtors.

Common mistakes

  • Starting work before assets and access are in hand, then blaming the client for delays.
  • Requesting information in five separate emails.
  • Leaving communication expectations unstated, which invites weekend messages.
  • No sales-to-delivery handoff, so the team hears about a promise from the client.
  • Skipping the kickoff agenda and letting the meeting become a general chat.

Frequently asked questions

How long should client onboarding take?
Aim for the first two weeks: welcome and asset request in days one and two, kickoff within five working days, first deliverable or visible progress inside two weeks.
Should onboarding differ by client size?
The steps stay the same; the depth changes. A large client adds stakeholders, procurement and security review. Keep the same spine so nothing gets dropped.
What if the client goes quiet during onboarding?
Send one consolidated status note listing what is outstanding, who owns it and what it delays. Documented dependencies protect the timeline and the relationship.
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