If you are a sole trader or landlord with combined income above £50,000, 7 August 2026 is the date to circle. It is the deadline for your first Making Tax Digital for Income Tax quarterly update, and for roughly 780,000 people it is the first time they have ever had to report figures to HMRC before the end of the tax year.
TL;DR: The first MTD for Income Tax quarterly update covers 6 April to 5 July 2026 and is due by 7 August 2026. It applies to sole traders and landlords with combined qualifying income over £50,000. You submit cumulative income and expense totals through HMRC-recognised software. There are no penalty points for a late quarterly update in 2026-27, but the final declaration still follows normal Self Assessment penalties.
What Is the 7 August 2026 MTD Deadline?
It is the submission date for your first quarterly update under Making Tax Digital for Income Tax. The update covers the quarter running from 6 April to 5 July 2026, and it must reach HMRC through compatible software by 7 August 2026 (GOV.UK, 2026).
This is a genuine change to how income is reported. Under Self Assessment you filed once a year. Under MTD you send four updates plus a year-end declaration. The three remaining 2026-27 deadlines are fixed at 7 November 2026, 7 February 2027 and 7 May 2027 (ICAEW, 2026).
If you have already read our guide to what changed when MTD started in April 2026, this is the first live deadline that guidance was pointing towards.
Who Has to File This Year?
You are in scope from 6 April 2026 if your combined gross income from self-employment and property was over £50,000 (GOV.UK, 2026). Qualifying income is measured before expenses, so a landlord with £30,000 in rent and a side trade turning over £25,000 is caught, even if the profit is modest.
The threshold drops in stages. From April 2027 it falls to £30,000, bringing in a further 970,000 people, and from April 2028 it reaches £20,000 (ICAEW, 2026).
What we see most often is confusion between profit and turnover. The test looks at gross income from your trade and property combined, not your taxable profit. If you are close to the line, add the two figures together before assuming you are exempt.
What Goes Into a Quarterly Update?
A quarterly update is a summary of your business income and expenses for the period, reported as cumulative totals from the start of the tax year. You send one update per source, so a sole trader who also lets a property files two (GOV.UK, 2026).
The update does not calculate your tax bill and it does not need to be perfect. You are not making any claims, reliefs or adjustments at this stage. Those come later, at the final declaration.
One question clients always ask is whether they need to reconcile everything to the penny each quarter. You do not. The quarterly update is a running total from digital records, and you correct any errors in a later update or at year end. Getting your digital record keeping right is what makes each quarter a five-minute job rather than a scramble.
Which Software Is HMRC-Recognised?
You must use software that HMRC has recognised for MTD for Income Tax. Spreadsheets alone do not qualify unless linked to bridging software. HMRC keeps the current list on its software choices tool (GOV.UK, 2026).
Products already recognised include Xero, QuickBooks and FreeAgent, which handle both MTD for VAT and Income Tax. Free options exist too, including Sage Individual, Coconut and QuickFile, aimed at people with simpler affairs. If you already file MTD VAT returns, check whether your existing package covers Income Tax before paying for a second tool.
In our experience the software choice matters less than the habit. A landlord who logs income monthly finds any recognised tool workable. Someone who leaves it to July will struggle whatever they pick.
Penalties and the First-Year Easement
There are no penalty points for missing a quarterly update deadline in the 2026-27 tax year. HMRC has confirmed a soft landing for the first four updates, so a late Q1 submission on its own will not trigger a fine (GOV.UK, 2026).
That easement is narrower than it sounds. It does not extend to your final declaration for 2026-27, which is due by 31 January 2028 and still carries the standard Self Assessment penalties. Late payment also stands: interest and a 3% charge apply where tax is paid late for 2026-27.
From 2027-28 onwards, a points-based system bites. You earn one point per missed quarterly deadline, and a fourth point triggers a £200 penalty. Points clear automatically after 24 months if you stay below the threshold (GOV.UK, 2026).
Getting Ready Before 7 August
Three practical steps close the gap. First, confirm you are actually in scope by adding your gross trade and property income for 2024-25. Second, sign up through recognised software and connect it to your HMRC account. Third, bring your records up to date to 5 July so the first update is a summary, not a project.
The soft landing gives you room this year, but it ends. Treating the first update as a dry run, rather than skipping it, builds the routine you will need once penalty points apply in 2027-28.
If you also run a limited company, the MTD rules do not touch your corporation tax, though they may change how you weigh being a sole trader against incorporating.
Frequently Asked Questions
Do I still file a Self Assessment tax return under MTD?
No. Once you are in MTD for Income Tax, the annual Self Assessment return is replaced by four quarterly updates plus a final declaration. The final declaration is where you confirm your figures, claim reliefs and settle the tax, and it is due by 31 January after the tax year ends.
What if my income is between £30,000 and £50,000?
You are not mandated in April 2026. You join from April 2027, when the threshold drops to £30,000. You can sign up voluntarily before then if you want to get used to the system, but there is no penalty for waiting until your start date.
Can I use calendar quarters instead of the standard periods?
Yes. You can elect to report to calendar quarter ends of 30 June, 30 September, 31 December and 31 March instead of the standard 5 July, 5 October, 5 January and 5 April. The submission deadlines of 7 August, 7 November, 7 February and 7 May stay the same either way.
Does the first-year easement mean I can skip the August update?
No. The easement removes penalty points for a late update in 2026-27, but you still have to submit all four quarterly updates before you can file your final declaration. Skipping one leaves you unable to close off the year correctly.
Not sure whether MTD for Income Tax applies to you, or which software fits how you work? Talk to our team - we can check your income against the threshold, get you set up on a recognised package, and handle the quarterly updates so 7 August is not a scramble.