Most guides to Making Tax Digital for Income Tax tell you the dates and stop there. What they rarely tell you is what needs to happen inside your business, week by week, so that when 7 August arrives, your quarterly update is a five-minute formality rather than a scramble. That’s the gap this article fills.
If you’re a sole trader or landlord with qualifying income above £50,000, you’re already inside the system. The first quarterly period, running from 6 April to 5 July, closes with a submission deadline of 7 August. But the deadline itself isn’t really the hard part. The hard part is building a routine that makes every quarter after this one just as straightforward. This is where genuine HMRC MTD compliance is won or lost. Not on submission day, but in the weeks before it.
How MTD for Income Tax Will Change Your Daily Business Routine
Making Tax Digital for Income Tax replaces the old habit of gathering a year’s worth of receipts once, in January, under pressure. In its place is a quarterly rhythm: four digital updates a year, each summarising income and expenses for a three-month period, followed by a Final Declaration that confirms your actual tax position.
It’s worth being precise about what a quarterly update is not. It is not a tax calculation. It is not a payment trigger. It is a structured summary, submitted through HMRC-recognised software, that keeps your records current instead of reconstructed from memory months later. The tax you owe is still worked out at the Final Declaration stage, by 31 January following the tax year end.
That distinction matters because it changes what “getting it right” looks like. You’re not aiming for a perfect final figure every quarter; provisional and estimated numbers are entirely acceptable at this stage, provided they’re corrected later. When you categorise your financial records the same way every quarter, yearend reporting becomes quicker, clearer, and more reliable.
The Quarterly Update Cycle, Simplified
For the 2026–27 tax year, the standard reporting periods are:
- Quarter 1: 6 April – 5 July → filed by 7 August
- Quarter 2: 6 July – 5 October → filed by 7 November
- Quarter 3: 6 October – 5 January → filed by 7 February
- Quarter 4: 6 January – 5 April → filed by 7 May
Each deadline falls on the 7th of the month following the quarter’s close, giving you a consistent one-month window to compile and submit. HMRC also allows calendar-month quarters as an alternative, useful if you’re already MTD-registered for VAT and want your reporting periods to line up, but that choice must be made before your first submission. It cannot be changed retroactively once Q1 has gone in.
A Practical HMRC Quarterly Updates Checklist
Rather than repeating the deadline dates again, here’s what should actually be happening in your business between now and 7 August, and every quarter after that.
1. Confirm your qualifying income position.
Qualifying income is calculated on gross turnover from self-employment and property combined, not profit after expenses. If you’re close to the £50,000 threshold, check out this against your most recent tax return rather than assuming last year’s figure still applies.
2. Separate income streams cleanly.
If you have both a sole trade and rental property, each is reported as a distinct business within MTD. Mixing the two in your bookkeeping now creates unnecessary reconciliation work at every future quarter.
3. Reconcile digital records weekly, not quarterly.
The single biggest cause of quarter-end stress is leaving three months of transactions to categorise in the final week. A short weekly reconciliation, even fifteen minutes, keeps your digital tax reporting UK obligations current and makes each submission close to instant.
4. Flag estimated figures as you go.
If an invoice is late or an expense is unconfirmed, submit a reasonable estimate and note it for correction. Don’t let uncertainty over one figure delay the entire update; nil and provisional updates are still valid filings.
5. Check software connectivity before the deadline week.
Confirm that your MTD-compatible software is correctly linked to your Government Gateway account, or that your accountant’s Agent Services Account is authorised to file on your behalf. This is not something to test for the first time on 6 August.
6. Diarise all four deadlines now, not just this one.
Treating Q1 as an isolated event is how quarters two and three catch people out. Set reminders for all four quarterly tax returns UK deadlines in the same sitting.
Where MTD ITSA Compliance Commonly Breaks Down
A few patterns show up repeatedly among taxpayers new to the system:
- Assuming no income means no filing. A quarter with no income or expenses still requires a nil submission. Having nothing to report does not exempt you from filing.
- Switching quarter types after the first submission. Once you’ve filed under tax-year quarters or calendar quarters, that choice is locked for the year.
- Treating quarterly updates as final figures. Submitting rushed, unchecked estimates without ever revisiting them at the Final Declaration stage risks an inaccurate year-end position, even though the update itself carries no immediate penalty for being provisional.
- Leaving software setup until deadline week. Connectivity issues, incorrect income-type configuration, or an unauthorised agent account are avoidable problems that become urgent only because they weren’t checked earlier.
HMRC has confirmed a penalty-point easement for late Q1 submissions in the 2026-27 transitional year. But that soft landing has limits. It doesn’t cover skipping submissions altogether, and it disappears from the following tax year. The habits formed now are the ones that carry into a system with real penalty points from 2027-28 onward.
Digital Tax Reporting Made Simple: Choosing the Right UK Software
Not all MTD-compatible software is built the same way. For a sole trader with one income stream, a simple app may be enough. For anyone managing a sole trade alongside a property portfolio, the software needs to separate income sources correctly from the outset, or every quarter becomes a manual untangling exercise.
This is usually where professional support pays for itself fastest. Not in the filing itself, which is largely automated once set up, but in getting the initial configuration right so that four submissions a year require minutes, not hours.
How Brayan & Spencer Associates Keeps You Compliant
At Brayan & Spencer Associates, we manage the parts of MTD for Income Tax that cause the most friction: confirming qualifying income, setting up and connecting HMRC-compatible software correctly for each income type, keeping your quarterly updates on schedule, and preparing your Final Declaration at year end. We also provide free accounting software to clients as part of our service, configured and connected to HMRC from day one, so there’s no separate cost and no need to trial different platforms yourself.
Whether this is your first quarterly update or you’re trying to build a system that holds up for the next three, our team can take the administrative weight off your hands.
Call us on 0207 183 5956 or visit www.bsassociate.co.uk to get your MTD compliance set up properly, before the next deadline creeps up.
Frequently Asked Questions
Yes. A nil update is still required. There is no exemption for quiet quarters.
Yes. Quarterly updates are summaries, not final calculations, so provisional figures are acceptable as long as they’re corrected in a later quarter or at the Final Declaration.
HMRC has confirmed a penalty-point easement specifically for late Q1 submissions in 2026–27. This doesn’t remove the requirement to file; all four quarterly updates are still needed before your Final Declaration will be accepted, and it won’t apply to future tax years.
No. That choice must be made before your first quarterly submission and cannot be altered once filed.
No. Quarterly updates are informational summaries only. Your actual tax liability is calculated and confirmed at the Final Declaration, due by 31 January following the tax year end.
