The first real Making Tax Digital deadline has been and gone. The quarter covering 6 April to 5 July 2026 had to be filed by 7 August, and HMRC expected roughly 436,000 sole traders and landlords to file it. Judging by the number of panicked searches since, a fair chunk of them did not.

So here is the answer to the question everyone is typing: if you missed the 7 August quarterly update, the penalty is nothing. No fine, no penalty points, no letter. HMRC has confirmed that no late-submission penalty points will be issued for quarterly updates in 2026/27, the first year of the new system. You should still file the update as soon as possible, but you have not been fined.

That is the good news. The rest of this piece is about why relaxing now would be a mistake, because the easement is narrower than it sounds, it expires in April, and the habits you build this year decide whether MTD becomes a minor admin rhythm or a quarterly panic for the rest of your trading life.

Who is actually inside MTD right now?

Making Tax Digital for Income Tax became mandatory on 6 April 2026 for sole traders and landlords whose qualifying income was over £50,000. Qualifying income means your combined gross income from self-employment and property, before expenses and before tax. It is not profit, and it does not include PAYE wages, pensions, dividends or savings interest.

That gross-not-profit detail catches people out constantly. A landlord with £52,000 of rent and £30,000 of costs is inside MTD. A sole trader flat out certain they are under the line because their taxable profit is £35,000 may well be inside it too. If you covered our piece on why the taxable income on your accounts is not the number you think it is, this is the same lesson from the other direction: HMRC uses the figure the rules specify, not the one that feels intuitive.

The rollout also does not stop with this year’s wave:

MTD start date	Who joins
6 April 2026	Qualifying income over £50,000
6 April 2027	Qualifying income over £30,000
6 April 2028	Qualifying income over £20,000

If your 2025/26 gross self-employment and property income lands over £30,000, your version of this article is eight months away.

The 2026/27 deadlines still to come

Quarterly updates follow a fixed rhythm: the 7th of the month following each quarter end. For this tax year, one is done and three remain.

Quarter	Period covered	Deadline
Q1	6 April to 5 July 2026	7 August 2026 (passed)
Q2	6 July to 5 October 2026	7 November 2026
Q3	6 October 2026 to 5 January 2027	7 February 2027
Q4	6 January to 5 April 2027	7 May 2027

The final MTD tax return for 2026/27, which replaces the old self assessment return, is due by 31 January 2028, along with the tax itself. And here is the catch hiding inside the easement: you cannot file that final return until all four quarterly updates have been submitted. Skip the quarterlies all year and nothing happens, right up until the moment everything happens at once, in January, with a filing deadline that does carry penalties.

What penalties still exist this year?

The easement covers exactly one thing: late quarterly updates in 2026/27. Two other clocks are still ticking.

Miss the 31 January 2028 final return and you collect a late-submission penalty point. The new system is points-based: four points triggers a £200 fine, and every further miss at that threshold is another £200. Points normally expire after 24 months of good behaviour, but once you hit the threshold you need a full year of on-time filing to reset.

Pay the tax late and a separate regime applies. In your first year there is a concession if you pay or agree a Time to Pay arrangement within 30 days of the due date. Beyond that, the charges stack: 3% of what was outstanding at day 15, another 3% of what remains at day 30, then a daily charge at an annualised 10% from day 31 onwards. Late-payment interest runs from day one regardless of any concession. The one-year kindness on quarterly updates does not extend to the money.

The real cost of missing quarterlies is not the penalty

Nobody builds a quarterly bookkeeping habit in January. The people who sail through MTD are the ones treating 2026/27 as the practice year it is designed to be: software connected, receipts captured monthly, an hour per quarter to review and submit. The people who suffer are the ones who interpret “no penalties” as “does not matter” and then have to reconstruct twelve months of records during the worst month of the year, with a final return blocked behind four unfiled updates.

There is also an upside that gets no airtime. Quarterly updates force a running view of your actual profit, which most sole traders have never had. That number is worth having for its own sake: it tells you your tax bill before it arrives, and it is exactly the kind of clean, current record that helps when a lender, landlord or anyone else wants to judge your income from your paperwork. MTD was imposed on the self-employed as a compliance exercise. Used properly, it quietly fixes the record-keeping problem that costs them far more than tax fines ever did.

Frequently asked questions

I missed the 7 August update. Should I file it now or wait for Q2? File it now. There is no fine either way this year, but updates are cumulative and your final return stays blocked until all four are in. Clearing it while the records are fresh takes an hour; reconstructing it in January will not.

Does the penalty easement continue into 2027/28? No. HMRC has described it as a one-year arrangement for the first mandated group. From April 2027 the points system is expected to apply to quarterly updates, at which point repeated misses become £200 fines.

My income is under £50,000. Can I ignore MTD? For now. But the threshold falls to £30,000 in April 2027 and £20,000 in April 2028, measured on gross income, not profit. Most established sole traders and landlords will be inside the system within two years.

Do I need an accountant for MTD? No, but you need MTD-compatible software; spreadsheets alone no longer cut it unless bridged. Many sole traders run the quarterlies themselves and keep an accountant for the final return, which is a sensible split of cost and risk.

The first deadline of a new tax regime is a strange thing: it arrived with years of warning and still caught hundreds of thousands of people out. If that was you, take the free pass, file the update, and use the eleven penalty-free months left to make the habit boring. Boring is the whole aim. The self-employed people who do worst out of MTD will not be the ones who missed 7 August. They will be the ones still improvising in January 2028.