Most small business owners have heard "Making Tax Digital" by now. But hearing the phrase and actually understanding what it means for how you run your books are two different things.
The UK government has been rolling this out in stages since 2019, and yet a surprising number of business owners are still fuzzy on the details — or worse, have decided it doesn't apply to them yet without actually checking. Some of that confusion is understandable. The deadlines have moved more than once, the rules differ depending on your tax type and turnover, and HMRC's official guidance, while thorough, isn't exactly easy reading on a Tuesday evening.
Here's a plain-English breakdown of what MTD actually requires, where small businesses tend to get tripped up, and what you should probably be sorting out now if you haven't started.
What MTD Actually Requires (Beyond the Buzzword)
Making Tax Digital isn't just about filing returns online — you might already be doing that. The core change is that MTD requires digital record-keeping from the source, and those records must be submitted to HMRC through compatible software, not through HMRC's own portal.
For VAT, this has been mandatory since April 2022 for all VAT-registered businesses regardless of turnover. For Income Tax Self Assessment (ITSA), the rules are being phased in for sole traders and landlords:
- From April 2026: Those with qualifying income above £50,000
- From April 2027: Those with income above £30,000
- From April 2028: Expected to cover those above £20,000
If you're a limited company, corporation tax isn't in scope yet — but the government has confirmed it's coming.
What this means in practice: quarterly updates to HMRC instead of one annual return, plus a final end-of-period statement. For business owners who've been doing a single tax return every January for twenty years, that rhythm is a bigger adjustment than the headlines tend to suggest.
The Gaps That Catch People Out
"My accountant handles everything" isn't the full picture
A lot of business owners assume that having an accountant means MTD is someone else's problem. It isn't, entirely. MTD compliance requires the business to keep digital records throughout the year — not hand over a shoebox of receipts once everything's due. If your current system is spreadsheets or paper records, that needs to change before your compliance date.
If you work with accountants in London who are actively helping clients through the transition, that relationship can make a real difference — but only if you're having the conversation now, not six months after the deadline.
Bridging software is a workaround, not a long-term fix
Some businesses link existing spreadsheets to HMRC's systems through bridging software. That's technically compliant for now. But bridging solutions were designed as a transitional measure, and the direction of travel is fairly clear. Moving to proper MTD-compatible accounting software earlier rather than later reduces compliance risk and, once you're used to it, tends to save time. The initial switch is the painful part.
Quarterly doesn't mean quarterly tax payments
One of the most persistent misconceptions is that MTD for ITSA means owing tax four times a year instead of once. That's not the case. The quarterly submissions are updates of income and expenses — your actual tax liability settles in the usual way. Some business owners are genuinely delaying preparation over a cash flow concern that doesn't exist, which is worth clearing up.
Exemptions are narrower than most people assume
Exemptions do exist — for instance, if HMRC agrees it's not reasonably practicable for you to use software. But these are assessed individually, not as a blanket category. Businesses that assume they'll qualify sometimes find out at the wrong moment that they don't. If you think you might have a case, it's worth getting that confirmed early rather than treating it as a fallback.
Why Timing Matters More Than People Realise
Tax compliance tends to get left until the deadline is close. With MTD, that creates more risk than usual.
Switching accounting software mid-year disrupts your records. Learning a new system takes time. And if you're planning to work with an accountant through the transition, the good ones — particularly small business accountants in London with direct MTD experience — are already seeing increased demand as 2026 approaches. Earlier conversations tend to get better attention and better preparation.
There's also a practical argument for running a parallel period before your deadline: keeping your old records alongside your new MTD-compliant system for a quarter or two lets you spot errors before they become a compliance problem. It's more work in the short term, but it removes the risk of a messy first submission.
Choosing the Right Software
HMRC maintains a list of MTD-compatible software. Options range from basic free tools that cover the core requirements to full accounting platforms with invoicing, payroll, and reporting built in. Which one suits you depends on your business complexity, transaction volume, and how much you want to manage yourself versus hand off.
One thing many business owners don't think about: the software you choose affects how easily your accountant can review and submit on your behalf. If you're keeping an accountant involved — sensible for most small businesses — it's worth checking what they're comfortable working with before committing to a platform. Finance Monthly has covered how to evaluate accounting software for small businesses if you want a more detailed comparison.
Where to Start
If your MTD deadline is April 2026 or later, you have time — but not unlimited time.
A useful first step is figuring out where your record-keeping actually lives right now, and whether it qualifies as "digital" under the MTD rules. A manually-updated spreadsheet isn't the same as MTD-compliant software, even if the data looks similar. From there, talk to your accountant about which platform they'd recommend and what a transition would look like for your setup specifically.
If you don't have an accountant and a compliance date is approaching, now is a reasonable time to get one involved. The difference between someone with real MTD experience and someone without shows up quickly — both in how smooth the transition is and how much admin you end up carrying afterwards.
MTD tends to feel like a headache right up until you're set up properly. After that, most businesses find the quarterly rhythm less painful than the annual scramble. Getting to that point, though, requires doing the work before the deadline, not because of it.
