The £50,000 Line: A Five-Point Readiness Check for Making Tax Digital

Making Tax Digital for Income Tax stopped being a future-tense problem on 6 April 2026. If your qualifying income sat above £50,000, you are already inside the regime, whether or not the software has been switched on in earnest. And if your turnover hovers near that line, or you are waiting for the £30,000 cohort in April 2027, the same five questions apply to you now — earlier, in fact, because you still have the luxury of time.

What follows is not an accountancy lecture. It is a readiness check, written for people who file their own returns, keep their own records, and would rather understand the shape of the obligation than memorise the legislation.

What the regime actually asks of you

Strip away the acronyms and Making Tax Digital for Income Tax (MTD ITSA, if you must) imposes four obligations. You keep your business records digitally. You send HMRC a summary of income and expenses every quarter. You do that using software that is compatible with HMRC's systems. And you confirm your position for the year with a final declaration by 31 January, replacing the traditional self assessment return.

Just as important is what it does not ask. It does not require monthly accounts. It does not mean you pay tax four times a year — payments on account still fall due on 31 January and 31 July as before. It does not require you to abandon a spreadsheet, provided that spreadsheet is connected to HMRC through bridging software. And it does not demand that every receipt be scanned; a digital record of the transaction is what matters.

One clarification worth repeating, because it catches people out: qualifying income is your gross income from self-employment plus gross property income, added together, before expenses. It is not profit. A landlord with two modest lets and a small consultancy can cross the line without ever feeling like a larger business.

One: is your record-keeping genuinely digital?

Not 'do you have a shoebox', but 'does a record exist in software at the point the money moves'. The practical test is simple: if HMRC asked you this afternoon to show every sale and every expense for the quarter, could you produce it without retyping anything? For many sole traders the honest answer is no, because the records live in a bank app, a notebook and a folder of emails. Fixing that is the first job, and it is dull, unglamorous work that pays for itself within a quarter or two.

A useful compromise for anyone with a very simple business is the three-line account: total turnover, total expenses, and the difference. HMRC permits it. It is not suitable for everyone, but it is a legitimate simplification rather than a shortcut.

Two: have you actually chosen the software?

Software selection is where readiness is won or lost. Check three things before you commit. First, that the product is on HMRC's list of compatible software — the list is public and updated regularly. Second, that it handles your real circumstances: two property businesses and a trade, for instance, rather than a single tidy stream. Third, that it gives your accountant the access they will need, assuming you use one. Changing systems in February is considerably more painful than changing them in November.

Cost is not the barrier it is often made out to be. Straightforward products for a single trader typically sit somewhere between £10 and £30 a month, and specialist bridging tools are cheaper still. What varies far more is the time it takes to learn the thing.

Three: do the quarterly dates work with your year?

Quarterly updates are due on 7 August, 7 November, 7 February and 7 May. Note what that means in practice: the 7 November deadline lands on a Saturday this year, and the run-up to it coincides with the busiest part of many trading calendars. Diary the dates now and treat them as internal deadlines of a week earlier.

Remember, too, that the quarterly update is a summary, not a tax computation. You are reporting figures, not paying. The final declaration by 31 January 2028 is where the year is tidied up and any balancing payment falls due. Late submission attracts a points-based penalty system, and late payment is penalised separately — the two run on different clocks.

Four: has the conversation with your accountant happened?

If you use an agent, this is not a formality. Ask four direct questions: are you authorised for MTD on my behalf, who is responsible for submitting each quarterly update, what do you need from me and by when, and what happens if a deadline is missed? Generalisations are not agreements. An agent who assumes you are filing, and a client who assumes the agent is filing, is a well-documented route to a penalty.

If you file yourself, the equivalent conversation is with HMRC's guidance and, if needed, its helpline — before the deadline, not on it.

Five: what will this realistically cost?

Budget in three parts. Software, as above, is modest. Professional fees will rise for most people using an accountant, because there are now five submissions a year rather than one; an additional few hundred pounds annually is a common range, depending on complexity. The third cost is your own time, which is smallest for those who keep records continuously and largest for those who batch everything in January.

The short version

Digital records, chosen software, a diary with the dates in it, a named person responsible for each submission, and a realistic budget. Five items, none of them difficult in isolation, all of them easy to defer until deferral becomes expensive.