What is Making Tax Digital and does it affect you?

If you have heard the phrase Making Tax Digital and assumed it does not apply to you, now is the moment to check. MTD for Income Tax is live for sole traders and landlords earning above £50,000 — and the income thresholds are set to drop further in 2027 and 2028. Here is what it actually means and what you need to do about it.

What MTD for Income Tax is — and why it’s different from MTD for VAT

Making Tax Digital is not a new tax. It is a new way of reporting your income to HMRC — digitally, using software, on a quarterly basis rather than once a year in January.

You may already be familiar with MTD for VAT, which has been mandatory for VAT-registered businesses since 2019. MTD for Income Tax is the next phase. It applies to self-employed individuals and landlords who currently file a Self Assessment return — but it changes how and when that reporting happens.

The core change: instead of one annual Self Assessment filing, you submit four brief quarterly updates each year, plus a final end-of-year declaration. Each quarterly update is not a full tax return. It is a summary of your income and expenses for that three-month period — a snapshot of where you stand, sent digitally to HMRC.

Who is affected now — and who will be affected next

The current rules apply to sole traders and landlords with gross income above £50,000 from self-employment, property rental, or a combination of both. If your total qualifying income exceeded that threshold in the previous tax year, you are in scope for 2026/27.

The thresholds drop in subsequent years.

Partnerships are not included in the current phase. Employed individuals with no self-employment income are not affected regardless of salary level.

What quarterly submissions actually involve

The quarterly submission is the part people worry about most, and it is less burdensome in practice than it sounds.

Four times a year — roughly aligned to July, October, January, and April — you submit a digital update to HMRC covering your income and expenses for that quarter. You do not calculate your tax bill at this point. HMRC uses the updates to build a running estimate of your income through the year, but no payment is due from a quarterly submission alone.

The tax calculation and payment still happen once, after the year ends. You submit a final declaration — the equivalent of your current Self Assessment — combining all four quarterly updates with any adjustments. Payment remains due by 31 January, as it always has been.

The timeline in practice: four brief digital updates through the year, then a final declaration, then payment. Most of the record-keeping happens continuously through the year in your accounting software, not in a rush in December and January.

What software you need — and how Xero handles it

MTD for Income Tax requires compatible software. You cannot use HMRC’s standard online portal for quarterly submissions — you need a recognised digital product.

Xero, QuickBooks, and FreeAgent are all on HMRC’s list of compatible software. If you already use one of these, you are almost certainly covered — check with your accountant to confirm and to make sure the MTD feature is activated.

If you use Xero, which we work with every day, the process is straightforward. Bank transactions come in automatically via bank feeds. Income and expenses are categorised as you go. Submitting a quarterly update means reviewing the period’s figures in Xero and clicking submit — the software handles the transmission to HMRC directly.

If you are currently managing your records in a spreadsheet, you will need to switch to compatible software before your first quarterly submission date. Bridging software exists to link spreadsheets to HMRC, but in practice, moving to a proper accounting tool saves more time than it costs and gives you a cleaner picture of your finances throughout the year.

What happens if you do nothing

HMRC is treating MTD seriously in a way that previous digital initiatives did not always reflect. The original MTD for Income Tax launch was delayed several times. The current schedule has been legislated — it is not simply an announcement — and HMRC has made clear that the penalty regime applies.

Missing a quarterly submission deadline triggers a points-based penalty system. Each missed submission earns a penalty point. Once you accumulate enough points — the threshold depends on how frequently you are required to submit — a £200 financial penalty applies. Points can be cleared if you then submit on time consistently.

This is different from the flat late-filing penalties under Self Assessment. The points system is more forgiving of isolated mistakes but firm on persistent non-compliance.

There is a less obvious consequence too. Quarterly updates give HMRC a view of your income four times a year rather than once. That closer visibility changes the context for any future enquiry — your income pattern becomes visible much earlier in the year.

The practical checklist: what to do before your first submission

If your income is above £50,000 from self-employment or property, here is what to do.

1. Confirm whether you are in scope. Add up your gross self-employment income and gross property income for the last complete tax year. If the combined total exceeds £50,000, you are in scope for 2026/27.

2. Check that your software is MTD-compatible. If you use Xero, QuickBooks, or FreeAgent, you are likely covered — verify with your accountant. If you use a spreadsheet, start evaluating alternatives now. The first quarterly period starts from 6 April 2026, so your records from that date need to be in the compatible system.

3. Register for MTD with HMRC. Registration is done through the HMRC website. If we manage your tax affairs, we handle this on your behalf.

4. Note your quarterly submission deadlines. Your four deadlines for the year are linked to your accounting period start date. Make a note of each one — missing the first is the most common mistake people make.

5. Set up your bookkeeping properly from April 2026. The first quarterly update will cover 6 April to 5 July 2026. Your records from that date need to be in your MTD-compatible software, correctly categorised and ready to submit.

If you already work with us, MTD setup and quarterly submissions are part of your monthly service — nothing changes for you. If you are not yet a client and you are above the threshold, getting this set up correctly from the start is far easier than correcting it later.

If you want to make sure you are MTD-ready and not caught out by your first quarterly deadline, book a free consultation and we will walk you through exactly what needs to happen.