Making Tax Digital: Your First Quarterly Deadline Is 7 August 2026

If you earn over 50,000 as a self-employed instructor, the first quarterly update under Making Tax Digital lands on 7 August 2026. Here is exactly what that means and what to do in the weeks before it.

For a lot of instructors, tax has always been one January scramble: a shoebox of receipts, a long evening, a Self Assessment return filed just before the deadline, done for another year. Making Tax Digital ends that rhythm, and the first real checkpoint is closer than most people realise.

If your self-employed income is over £50,000, your first quarterly update under MTD for Income Tax covers 6 April to 5 July 2026 and is due by 7 August 2026. This is a records piece, not tax advice — for anything specific to your situation, talk to an accountant. But here is the shape of what is changing and how to walk into that first deadline without a panic.

What actually changed on 6 April 2026

MTD for Income Tax Self Assessment (often shortened to MTD ITSA) became mandatory from 6 April 2026 for sole traders and landlords whose qualifying income is above £50,000. A typical full-time instructor running an independent diary is squarely in scope.

Three things are different from the old world:

• Digital records. You have to keep your income and expenses in digital form as you go — not reconstruct them from a carrier bag in January.
• Quarterly updates. Four times a year you send HMRC a running summary of income and expenses through compatible software.
• A final declaration. After the fourth quarter you confirm the year and settle up, replacing the old Self Assessment return.

The dates that matter

The standard quarters and their deadlines run like this for the 2026/27 tax year:

The final declaration for 2026/27, where you finish the year and pay what is due, follows by 31 January 2028. So the old January date does not disappear — it just stops being the only thing on the calendar.

Who is in scope, and when

The threshold steps down over the next couple of years, so even if you are under it now, your turn may be coming.

“Qualifying income” is your gross self-employment and property income before expenses, not your profit. It is easy to assume you are under the line because your take-home is lower, so check the gross figure — a full diary can put you over £50,000 more easily than you think.

What to do before 7 August

You do not need to overhaul your whole business. You need clean digital records for the quarter that just closed and a way to submit them.

1. Get your records digital, from 6 April

Every lesson paid, every expense, every receipt — captured digitally with a date, an amount and a category. If you have been keeping paper for the first quarter, now is the time to get it into digital form before the deadline, and to switch your day-to-day habit so the next quarter builds itself.

2. Sort your categories

Expenses need to sit in the right buckets — fuel and vehicle running, insurance, phone and software, and so on. Getting the categories right as you record saves a reconciliation headache later. Our guide to driving instructor expenses and what you can claim walks through the common ones.

3. Choose compatible software

Quarterly updates go to HMRC through MTD-compatible software. You cannot type figures straight into the HMRC website the way you could with the old return, so you need a tool that holds your digital records and can file the update.

4. Do a dry run

Before the real thing, pull together your 6 April to 5 July figures and check they make sense — does income roughly match your diary, are any big expenses missing, do the totals feel right? Finding a gap in late July is a five-minute fix. Finding it on 7 August is a scramble.

Why this is a nudge worth taking seriously

It is tempting to treat a new admin requirement as noise and deal with it later. Two reasons not to. First, late or missing updates carry penalties under the new points-based system, so “I will sort it in January” no longer works. Second — and more usefully — instructors who move to clean digital records almost always discover they were underclaiming expenses and guessing at their real profit. The requirement is a chore, but the tidy records it forces are genuinely worth having.

We covered the wider picture of what MTD means for the trade in our full guide to Making Tax Digital for driving instructors. This piece is the near-term version: the first deadline is 7 August 2026, and the work that makes it painless is the work you do now.