Making Tax Digital for Income Tax: what practices need to do before April 2026
The MTD ITSA threshold is changing and the clock is ticking. Here's a calm, practical checklist for getting sole-trader and landlord clients ready — and where automation quietly removes the busywork.
Making Tax Digital for Income Tax Self Assessment (MTD ITSA) is the biggest change to how unincorporated businesses report to HMRC in a generation. For practices, the work isn't the filing itself — it's getting clients ready, calmly, before the deadline arrives.
This is a plain-English summary of where things stand and a checklist you can work through with clients. It is general information, not advice — always check the current position on GOV.UK for a specific client's circumstances.
Who's affected, and when
Qualifying income thresholds are being phased in, starting with the largest sole traders and landlords. The practical takeaway: segment your client list now by income band so you know who needs to be ready first.
- Identify clients above the first threshold and flag them as priority.
- Confirm each client has compatible software or a bridging solution.
- Map who keeps the records — the client, you, or a shared workflow.
The firms that will cope best aren't the ones with the fanciest tools — they're the ones who started the conversation early.
The readiness checklist
1. Digital record-keeping
Quarterly updates mean records must be kept digitally and submitted through compatible software. For clients still on spreadsheets or shoeboxes, this is the real change-management work.
2. Quarterly cadence
Four updates a year plus a final declaration replaces the single annual return. Build the cadence into your workflow calendar so nothing is a surprise.
Where automation helps
Quarterly cadence multiplies the admin. This is exactly where light automation pays off — capturing invoices and receipts automatically, reconciling bank lines as they land, and nudging clients for missing records before the deadline rather than after.
3. Client communication
Most of the friction is human, not technical. A short, reassuring email sequence — what's changing, what you need from them, by when — prevents a Q4 scramble.
This summary draws on official guidance published by GOV.UK / HMRC. Always confirm thresholds and dates against the current official guidance for a client's specific situation. BytSea curates and summarises — we link you to the source.
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