Making Tax Digital for Income Tax moves into a bigger phase from 6 April 2026, pulling more sole traders and landlords into quarterly digital reporting. If your bookkeeping still lives in a spreadsheet, this is the push to move it, and the best AI accounting tools for UK small businesses in 2026 make that switch far less painful.
Here is the short version. Instead of pulling everything together once a year for a Self Assessment tax return, affected businesses keep digital records all year and send HMRC four quarterly updates plus a final declaration, using software that HMRC recognises. Nothing about how much tax you pay changes. What changes is the rhythm of your record keeping and the tools you use to do it.
What Making Tax Digital actually is
Making Tax Digital, usually shortened to MTD, is HMRC’s programme to move tax reporting off paper and out of standalone spreadsheets and into connected software. The idea is that your records are digital, kept up to date through the year, and sent to HMRC directly by an app that is linked to your tax account.
You may already know MTD from VAT. Making Tax Digital for VAT already applies to VAT-registered businesses, and it is a separate, earlier regime from Making Tax Digital for Income Tax. The Income Tax phase extends the same principle to income from self-employment and property, which is why sole traders and landlords who have never touched MTD before are now in scope. HMRC explains how it works on its guidance on using Making Tax Digital for Income Tax.
The practical meaning for you is simple. A once-a-year scramble becomes a steady habit. That sounds like more work, and in the first quarter it can feel like it, but a steady habit is far easier to keep on top of than a January panic.
Who is affected, and when
The threshold that decides whether you are in scope is your qualifying income. This is your total gross income from self-employment and property before you take off any expenses, not your profit. That distinction matters enormously, and we come back to it below.
HMRC is phasing the rollout in by qualifying income level, so people with the highest income come in first and others follow. According to HMRC’s eligibility guidance for Making Tax Digital for Income Tax, the timetable is:
- Qualifying income over £50,000: you must use Making Tax Digital for Income Tax from 6 April 2026.
- Qualifying income over £30,000: you join from 6 April 2027.
- Qualifying income over £20,000: you join from 6 April 2028.
The government has also stated that it will extend the requirement to those with qualifying income over £20,000 by the end of this Parliament, so even lower earners should expect to be brought in over time. Your qualifying income is assessed for a tax year, and HMRC writes to people it believes are in scope, so a letter from HMRC is a strong signal that you need to act.
Why the “gross income, not profit” rule catches people out
Because the threshold is based on gross income, a landlord with high rents and a large mortgage can be in scope even when the profit is modest. The same is true of any high-turnover, low-margin trade. If you have both a sole trader business and rental property, the two income sources are added together to work out your qualifying income.
If you are genuinely below the threshold for the current phase, you can still join voluntarily, which some people do to smooth out their admin and move to digital records on their own terms rather than being forced in later.
What actually changes each year
Once in scope, you keep digital records and send HMRC four quarterly updates using compatible software, then finalise the year. The quarterly updates are summaries rather than full tax returns, but they do require your records to be digital and up to date all year round, which is where automating your invoices and payments keeps things current without extra effort.
It helps to see the year as five moments rather than one. Four of them are the quarterly updates, which are short digital summaries of your income and expenses for that period. The fifth is the final declaration at the end of the year, where you confirm the full picture, add anything the quarterly figures did not cover, and settle your tax position.
What a quarterly update is, and is not
A quarterly update is a summary of your business income and expenses, sorted into categories, sent from your software to HMRC. It is not a tax calculation you have to agonise over, and it is not the moment you pay anything.
Think of each update as a checkpoint. If your books are current, submitting takes minutes because the software has already added everything up. If your books are three months behind, the checkpoint becomes the deadline you dreaded with the old annual return, only now it lands four times a year. That is the whole reason to keep records current.
The practical fix
The mainstream bookkeeping platforms all file MTD updates automatically once connected to HMRC. The real work is habit: record income and expenses as they happen, reconcile monthly, and the quarterly deadlines take care of themselves, especially if you build a simple workflow automation without coding to handle the repetitive steps.
Getting to that steady state is a three part job. First, get your records into recognised software. Second, connect that software to HMRC so it can file on your behalf. Third, build a monthly reconciliation habit so the quarterly updates are a formality rather than an event.
Getting your records digital
Digital records means your transactions live in software, not in a shoebox or a spreadsheet you retype each year. The cleanest way to start is to connect your business bank account so transactions flow in automatically. From there you categorise each one, which the software increasingly suggests for you based on past entries.
If you currently work in a spreadsheet, most platforms let you import a historical file to get going, so you are not starting from a blank screen. The goal is that from day one of the new period, everything is captured in one place.
Connecting to HMRC
Once your records are in recognised software, you authorise it to talk to HMRC. This is a one-time set up where you sign in with your HMRC credentials and grant permission. After that, submitting a quarterly update is a button, not a form. Your accountant can do this step for you if you would rather not touch it.
Choosing MTD-recognised software
The most important word is recognised. HMRC publishes a list of software that works with MTD for Income Tax, and picking from that list is what keeps you compliant. Beyond compliance, the differences come down to how much automation you want, whether you have an accountant who prefers a particular tool, and how simple your affairs are.
The table below lays out the broad options. Pricing changes and varies by plan, so treat any figure your provider quotes as approximate and check it before you commit.
| Option | What it is | Strengths | Watch for | Best for |
|---|---|---|---|---|
| Full cloud accounting | A complete bookkeeping platform with bank feeds, invoicing and MTD filing | Automation, invoicing, reports, accountant familiarity | Monthly cost, more features than a simple business needs | Growing sole traders and landlords who want one system |
| Simple MTD app | A lighter tool focused on recording income and expenses and filing updates | Cheaper, quicker to learn, less clutter | Fewer reports and integrations as you grow | Straightforward affairs and low transaction volume |
| Bridging software | A tool that connects an existing spreadsheet to HMRC | Keeps your spreadsheet, lower change effort | You still keep the spreadsheet current by hand | People wedded to a spreadsheet who want minimal disruption |
| Accountant’s chosen tool | Whatever platform your accountant already runs clients on | They know it, support is easy, no debate | You may pay for features you do not use | Anyone who leans on an accountant for the year end |
Whichever route you pick, sanity check it against HMRC’s list of software compatible with Making Tax Digital for Income Tax before you pay for anything. And if you want to see how these tools handle bookkeeping automation in practice, our roundup of the best AI accounting tools for UK small businesses walks through what each one does well.
A quarter-by-quarter routine that keeps you clean
The businesses that find MTD painless are the ones that never let their records drift. You do not need a finance background to build that discipline. You need a short, repeatable routine and the willingness to keep it.
- Weekly, fifteen minutes: open your software, categorise new bank transactions, and photograph or forward any receipts so they are captured while you remember what they were.
- Monthly, thirty minutes: reconcile, meaning you check that the transactions in your software match your bank statement, and chase anything that does not add up.
- Each quarter, ten minutes: review the summary your software has produced, then submit the update to HMRC.
- Year end: confirm the full picture in the final declaration, add anything not covered by the quarterly figures, and settle your tax position.
If invoicing is the part that always slips, that is worth fixing first because unpaid and unrecorded invoices distort everything downstream. Setting up automated invoices and payment reminders keeps your income side current with almost no ongoing effort.
How MTD changes cash flow planning
There is a hidden upside here. Because your numbers are current every month, you can see how the business is really doing instead of finding out in January. That makes proper cash flow forecasting genuinely achievable, since a rolling forecast is only as good as the up to date figures feeding it.
Working with your accountant
If you have an accountant, ask them one question this month: which software do you want me on, and when do we switch? Moving mid-year is messier than starting a fresh quarter clean.
Your accountant may also offer to handle the quarterly submissions for you, or to set up the software and hand you a tidy day-to-day routine while they take the year end. Agree who does what in writing so nothing falls between you. The worst outcome is both parties assuming the other filed a quarterly update.
If you do not have an accountant and your affairs are simple, you may not need one, but it is worth a single paid consultation to confirm your categories and set up are right before the first period begins. Getting the foundation correct once is cheaper than unpicking a year of miscategorised entries.
Fitting MTD into a wider set of tools
MTD rarely sits alone. Most owner-managers who tidy up their bookkeeping quickly see the same case for tidying up the rest of their admin, from job records to rotas to stock. If that is you, our look at the operations stack every sub-£1m business should know about covers the affordable tools that replace spreadsheet sprawl.
Before you add anything, decide how you will judge whether it was worth it. The point of automating record keeping is to save hours and reduce errors, so measure those. Our guide to knowing whether automation has paid off sets out the handful of numbers that tell you a tool is earning its keep rather than just adding a subscription.
The mistakes people actually make
Most MTD trouble is avoidable and comes from a small set of habits. Watch for these.
- Leaving it until March. The whole model rewards keeping current. If you plan to catch up the night before a deadline, you have recreated the annual scramble four times over.
- Choosing software HMRC does not recognise. A tool can be brilliant at bookkeeping and still not file MTD updates. Always check it against HMRC’s compatible list.
- Mixing personal and business spending. If your business and personal transactions run through one account, every reconciliation becomes detective work. Use a separate business account so the bank feed stays clean.
- Guessing at expense categories. Inconsistent categorisation makes your figures unreliable and your year end harder. Agree your categories once, ideally with an accountant, and stick to them.
- Assuming the threshold is about profit. Qualifying income is your gross income before expenses, so high-turnover, low-margin businesses and landlords with large mortgages are often in scope when they assume they are not.
- Ignoring quarterly updates because no tax is due. The update is a filing obligation in its own right, separate from paying. Missing them can attract penalties even when your tax bill is nil.
Frequently asked questions
Do I still file a Self Assessment tax return under MTD?
The annual return in its old form is replaced by the quarterly updates plus a final declaration for the income covered by MTD. The final declaration is where you confirm the full year and settle up. Check the current position on gov.uk, since the transition detail is what HMRC keeps updated.
Can I keep using my spreadsheet?
You can keep a spreadsheet if you connect it to HMRC through bridging software that is on HMRC’s recognised list. Be honest with yourself about whether you will keep that spreadsheet current by hand, because bridging software files what you give it, it does not do the bookkeeping for you.
What happens if I miss a quarterly update?
Late or missing submissions can lead to penalties under HMRC’s points-based system, even where no tax is owed for that period. The safest approach is to treat each quarterly deadline as fixed and submit on time, since the update itself is quick when your records are current.
How much does MTD software cost?
It varies widely, from lightweight apps to full cloud accounting platforms, and prices change and depend on the plan and any accountant discounts. Treat any figure you are quoted as approximate and confirm it before committing. Factor in that a well-chosen tool should save you enough time to justify the subscription.
I am below the threshold. Do I need to do anything?
If your qualifying income is genuinely below the level for the current phase, you are not required to join yet, but you can opt in voluntarily. Given the government intends to bring in those with qualifying income over £20,000 by the end of this Parliament, many owners move to digital records early so the switch is on their terms rather than forced by a later phase.
What to do next
- Confirm whether you are in scope, and from when. Add up your gross self-employment and property income for the tax year, then check it against the phased thresholds on HMRC’s eligibility guidance, so you know whether you join in April 2026, 2027 or 2028.
- Pick recognised software this month. Choose from HMRC’s compatible list, ideally the tool your accountant already uses, and set up your bank feed so transactions flow in automatically.
- Ask your accountant the two questions. Which software, and when do we switch. Agree in writing who files the quarterly updates and who handles the year end.
- Build the weekly and monthly habit now. Block fifteen minutes a week and thirty minutes a month in your calendar before the first period starts, so your quarterly updates are a formality rather than a deadline you dread.
