If you are wondering what does Making Tax Digital mean for self-employed business owners, the 2026/27 tax year marks a fundamental shift in how you report to HMRC. Schedule A1 to the Taxes Management Act 1970 (as introduced by the Finance (No. 2) Act 2017) now mandates certain individuals to keep digital records and submit quarterly updates to HMRC.
The Mandation Thresholds and Timeline
Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) requires self-employed individuals (sole traders) and landlords to maintain digital records and update HMRC each quarter using compatible software. The government is rolling out MTD for ITSA in staggered phases based on your qualifying income:
- From 6 April 2026: MTD is mandatory if your total qualifying income exceeds £50,000.
- From 6 April 2027: MTD becomes mandatory if your total qualifying income exceeds £30,000.
- From 6 April 2028: The threshold drops further, mandating those with a qualifying income over £20,000.
HMRC defines “qualifying income” as the combined gross income from all of your self-employment and property businesses.
Excluded Entities
The current MTD for ITSA rules apply to individuals. The legislation explicitly excludes activities carried on in a partnership from being a “relevant activity” for these digital reporting requirements. Therefore, general partnerships and limited companies do not fall under this specific mandate at this time, though the government remains committed to introducing MTD for partnerships in the future.
Software and Digital Record-Keeping
To comply with the new rules, you cannot simply keep manual paper records. You must acquire compatible commercial software to maintain your records digitally.
Your software must record the specific details of every business transaction. For each transaction, the digital record must capture the amount, the date, and the income or expense category.
Signing Up for MTD
Before you can use the MTD for ITSA service, you must sign up via HMRC’s online portal. To be eligible to sign up, you must already be registered for Self Assessment and have submitted a tax return within the last two years. If your income currently falls below the £50,000 threshold, you can still register voluntarily to prepare for the future phases.
Quarterly Updates and Deadlines
Instead of just one annual tax return, MTD software compiles summaries of your business income and expenses every three months. The software adds together your digital records to create totals for each category, which it then transmits to HMRC as a quarterly update.
If you use the standard update periods that align with the tax year (6 April to 5 April), the deadlines for submitting your quarterly updates are fixed:
- Quarter 1 (6 April to 5 July): 7 August.
- Quarter 2 (6 April to 5 October): 7 November.
- Quarter 3 (6 April to 5 January): 7 February.
- Quarter 4 (6 April to 5 April): 7 May (the following tax year).
Because today is 7 August 2026, the deadline to submit the very first quarterly update for the 2026/27 tax year falls today. You must submit a quarterly update for each source of income you have (e.g., self-employment and property income).
At the end of the year, you will still check the data, make necessary accounting adjustments, and submit your final declaration (which replaces the traditional Self Assessment return) by 31 January, paying any tax due.
Penalties: The 2026/27 “Soft Landing”
HMRC operates a points-based penalty system for late submissions. If you reach a specific penalty point threshold, HMRC issues a £200 penalty.
However, HMRC recognises the scale of this transition. For the 2026 to 2027 tax year, HMRC will not apply penalty points for late quarterly updates. This temporary “soft landing” gives self-employed individuals time to adjust to the new quarterly rhythm. You still need to submit the updates, and standard penalties continue to apply if you fail to submit your final annual declaration or pay your tax on time by 31 January.
Summary Table: MTD for ITSA Elements 2026/27
| Part | Party | Provision / Event | Date / Amount | Outcome |
|---|---|---|---|---|
| Mandation | Sole Traders & Landlords | £50,000 Threshold | 6 April 2026 | Must use software to keep digital records and submit quarterly updates. |
| Measurement | Taxpayer | Qualifying Income | 2026/27 | Combined gross income from all self-employment and property. |
| Exclusions | Partnerships & Companies | Sch A1 TMA 1970 | 2026/27 | Excluded from the current MTD for ITSA mandate. |
| Record Keeping | Taxpayer | Digital Records | Per transaction | Must record the amount, date, and category for every transaction. |
| Compliance | Taxpayer | Q1 Update Deadline | 7 August 2026 | The first quarterly summary update is due today. |
| Enforcement | HMRC | Points-based Penalties | 2026/27 Tax Year | Penalty points for late quarterly updates are waived for the first year. |
Ensure any affected self-employed clients have authorised their MTD-compatible software and submit their first quarterly update today (7 August 2026) to establish compliant reporting habits, despite the penalty waiver.
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