If you’ve spent any time lately scrolling through business news or chatting with other business owners, you’ve probably heard three little letters that sound like a secret code: MTD.
It stands for Making Tax Digital, and if you’re a sole trader or a landlord, it’s about to change the way you talk to HMRC. But don’t worry, at Makes Sense Accountants, we’re all about cutting through the noise. We don’t do "tax-speak," and we definitely don’t do jargon.
Since it’s currently March 2026, we are right on the doorstep of these changes. If you’re earning over £50,000, the new rules kick in this April.
In this post, we’re going to explain the biggest change of all, the Quarterly Update, in plain English. And we promise to do it in under three minutes of reading time. Ready? Let’s go.
What on Earth is an MTD Quarterly Update?
Historically, if you were self-employed, you probably had a "January Panic." You’d spend the weeks after Christmas hunting for receipts, staring at bank statements, and trying to remember what you spent money on eleven months ago so you could file your self assessment tax return.
HMRC wants to end that. Instead of one big massive update once a year, they want four little "mini-updates" throughout the year.
An MTD Quarterly Update is simply a summary of your business income and expenses sent to HMRC through software. It’s not a full tax return; it’s just a digital "check-in" to show how much you’ve earned and spent over the last three months.
Who Needs to Care About This?
Right now, the rules are pretty specific:
- From April 2026: If you are a sole trader or landlord with a total business or property income of more than £50,000 a year, you are in.
- From April 2027: If you earn over £30,000, you’ll be joining the club then.
If you earn less than that, you can keep doing things the "old way" for now, but many people are switching early because digital record-keeping actually makes life a lot easier.
The "Under 3 Minutes" Breakdown
Here is everything you actually need to know about these updates, stripped of the boring bits.
1. It’s about the "What," not the "How Much Tax"
When you send a quarterly update, you aren’t telling HMRC how much tax you owe. You aren’t claiming complex tax reliefs or doing fancy accounting adjustments. You are literally just saying: "In the last three months, I took in £X and I spent £Y on business stuff."
2. You can’t use a paper ledger (or even just a basic Excel sheet)
The "Digital" part of Making Tax Digital is the most important bit. You have to use "functional compatible software." This is just a fancy way of saying an app or a program that can talk directly to HMRC’s computers. You record your transactions in the app, click a button, and the update is sent. No manual typing into the HMRC website is allowed anymore!
If you're feeling a bit lost on which app to pick, we can help you get set up with Making Tax Digital software that actually makes sense for your business.
3. The deadlines are set in stone
You have to send these updates four times a year. You get one month after the end of the quarter to hit the "send" button.
When are these updates due?
To make it easy, HMRC has set standard quarters. Most people will follow these dates:
- Quarter 1 (April 6 – July 5): Deadline is August 7.
- Quarter 2 (July 6 – Oct 5): Deadline is November 7.
- Quarter 3 (Oct 6 – Jan 5): Deadline is February 7.
- Quarter 4 (Jan 6 – April 5): Deadline is May 7.
If you prefer to work in calendar months (like April 1 to June 30), you can usually choose to do that instead, as long as you tell HMRC. The main thing is that you’re doing it four times a year, every three months.
The "Final Declaration": The Final Boss
You might be thinking, "If I’m doing four updates, am I done?"
Almost! After your four quarterly updates are in, you still have to do one final step called the Final Declaration. This happens at the end of the tax year. This is where you (or your friendly neighborhood accountant) add in the extra bits, like tax reliefs, personal income from other sources, or accounting adjustments.
This replaces the old Self Assessment tax return. Think of the quarterly updates as the "rough draft" and the Final Declaration as the "finished book."
Why is HMRC making us do this?
We know, we know. It feels like more work. But there are a couple of silver linings:
- No more January surprises: Because you’re looking at your numbers every three months, you’ll know exactly how much profit you’re making. No more reaching January and realizing you don’t have enough saved for your tax bill.
- Fewer mistakes: Typing numbers from a paper receipt into a tax return once a year is a recipe for typos. Using an app to snap a photo of a receipt as you go means the data is much more accurate.
- Better support: If you’re struggling, having digital records means we can look at your data in real-time and give you self assessment tax return support before a mistake becomes a penalty.
Is it harder for Sole Traders?
Being an MTD – Sole trader can feel a bit lonely. You’re the CEO, the marketing department, and the person who empties the bins. Adding "Digital Compliance Officer" to that list feels like a lot.
However, once the software is set up, it usually only takes a few minutes a month to keep things updated. If you use a business bank account that links to your software, most of the work is done for you automatically.
How We Help (The Makes Sense Way)
At Makes Sense Accountants, we know that you didn't start a business because you love filing quarterly updates. You started it because you’re great at what you do.
Our job is to take the "tax stress" off your plate. Here is how we make MTD simple:
- Plain English Only: We promise never to use words like "disaggregation" or "non-cumulative" unless we absolutely have to (and even then, we’ll explain them).
- Software Setup: We’ll help you pick the easiest software for your specific business and show you exactly how to use it.
- Reviewing your Updates: We can check your quarterly figures before they go to HMRC to make sure everything looks right.
- The Final Polish: We handle the Final Declaration so you can be 100% sure you’re claiming every deduction you’re entitled to. Check out our tips to maximise deductions for more on that!
Common Myths About MTD Quarterly Updates
Myth: "I have to pay my tax every three months now."
Truth: Nope! For now, the payment deadlines stay the same (usually January 31st and July 31st). You’re just sending the information more often, not the money.
Myth: "HMRC will have a direct window into my bank account."
Truth: Not quite. You are sending a summary of totals. HMRC doesn't see every single coffee you bought or every individual transaction unless they specifically ask for an audit.
Myth: "I can just email my spreadsheets to HMRC."
Truth: Unfortunately not. The software has to link directly to their system. If you’re worried about this, get in touch and we can explain how the "bridge" works.
Ready to stop worrying about April?
Making Tax Digital doesn't have to be a headache. It’s just a new rhythm for your business. Once you get into the swing of things, you’ll probably find that having a clearer picture of your finances every three months actually helps you grow.
If you’re a sole trader or landlord earning over £50k, the clock is ticking for the April 2026 start date. Don't leave it until the last minute!
We’re here to help you get your digital ducks in a row so you can get back to doing what you love. Whether you need a full accountancy service or just someone to make sure you don't get a tax penalty, we’ve got your back.
Want to chat about how MTD affects you? No jargon, just honest advice.
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