Quick answer:
To get clients MTD-ready, segment them by qualifying income and start date, move them onto compatible software early, establish clean digital records before the tax year, and set a quarterly review rhythm. Doing this in waves keeps your practice from being overwhelmed at the deadline.
Step 1: Segment your client base
Identify which clients had qualifying income over £50,000 on their 2024/25 return (in scope from April 2026), which fall into the £30,000 (2027) and £20,000 (2028) phases, and which are unaffected for now. Remember qualifying income is gross, and combines self-employment and property. HMRC’s eligibility guidance sets out the detail. This tells you who needs attention first.
Step 2: Move clients onto software early
Get affected clients onto compatible software well before their start date. An early switch means clean opening records and time to iron out issues, rather than a last-minute rush across your whole book at once. HMRC also runs a sign-up and testing service, which can be useful for getting ahead with willing clients.
Step 3: Establish clean records
- Separate business and personal accounts where possible.
- Connect open banking so transactions import automatically.
- Set categorisation conventions so data is consistent across the practice.
Step 4: Set a quarterly rhythm
Build a light-touch review cadence around the quarterly deadlines (7 Aug, 7 Nov, 7 Feb, 7 May for standard quarters). With clean, automated records, each review is quick, and your team’s workload spreads across the year instead of spiking. Note that for clients joining in April 2026, late quarterly updates in 2026/27 don’t attract penalty points, but they still must be filed, and the year-end deadline (31 Jan 2028) carries normal penalties.
How CleanBooksAI helps your rollout.
CleanBooksAI keeps client records clean automatically, includes an accountant seat, and offers a partner programme to onboard clients efficiently, so getting your book MTD-ready is a managed process, not a fire drill.
