Self-Employed? Here's Exactly What to Put Aside for Tax in 2026
6 min read
MTD for Income Tax went live in April 2026 for anyone earning over £50,000 from self-employment or property. HMRC is already issuing fines. This plain-English guide tells you exactly what you need to do.
Making Tax Digital for Income Tax (MTD ITSA) became mandatory on 6 April 2026 for sole traders and landlords with qualifying income above £50,000 per year. If that's you and you haven't signed up, HMRC is already treating you as non-compliant — and fines are accumulating.
The rollout continues in stages: the threshold drops to £30,000 from April 2027 and to £20,000 from April 2028. That means even if you're below £50,000 today, this system will almost certainly reach you within two years.
MTD ITSA replaces the traditional annual Self Assessment tax return for affected individuals. Instead of submitting everything once a year by January, you must:
Spreadsheets and paper records are no longer sufficient on their own. You must use software that connects directly to HMRC's systems.
You must comply with MTD ITSA if your total qualifying income from self-employment and/or property exceeded £50,000 in any of the previous two tax years. Note:
HMRC uses a points-based penalty system for MTD ITSA. Each missed quarterly submission earns one penalty point. When your points reach a threshold (4 for annual filers, 2 for quarterly), you receive a £200 fine. Continued non-compliance results in further £200 fines for each additional missed submission.
Additionally, failing to submit a final declaration on time carries late filing penalties of £100 immediately, rising to £300 or 5% of tax owed after 6 months, and again at 12 months. These mirror the old Self Assessment late filing penalties.
You must use software from HMRC's approved list of MTD-compatible providers. Options include:
If your total income from platforms like Uber, Deliveroo, Just Eat, Etsy, Airbnb, or any other self-employment activity exceeds £50,000 (or from April 2028, £20,000), you must comply. Platform income counts as self-employment income for MTD purposes.
Many gig workers will be swept in by the £20,000 threshold from April 2028 — that's roughly £385/week in platform earnings. If that's you, start building MTD habits now.
You continue to file Self Assessment as normal until your income crosses the relevant threshold. However, if your income is between £20,000 and £50,000, the April 2028 rollout is approaching fast. It makes sense to start using compliant software now — both to build the habit and to benefit from better records for your existing tax return.
HMRC has confirmed limited exemptions:
Exemptions must be applied for through HMRC — they are not automatic.
Under MTD, the annual Self Assessment tax return is replaced by a "final declaration." This is similar in concept but is submitted through your MTD software rather than directly on the HMRC website. You still need to report all income sources, claim allowances, and agree your final tax bill.
You receive one penalty point. Points accumulate, and at the threshold (4 points for quarterly filers), a £200 fine is triggered. Points reset if you meet all obligations for a 12-month period.
No — MTD can be managed yourself using approved software. However, if your tax affairs are complex (multiple income sources, overseas income, capital gains), an accountant who uses MTD-compliant software can submit on your behalf. You authorise them through HMRC's agent system.
No. From April 2026, affected taxpayers must use HMRC-approved third-party software. HMRC's own digital tools for Self Assessment will not meet MTD requirements for quarterly submissions.
If your qualifying income drops below the threshold, you can apply to HMRC to leave the MTD scheme. However, you must first complete a full year of MTD compliance before applying to exit.
If you're a gig worker or sole trader trying to understand your current tax position, use our gig worker payslip guide or our IR35 and day rate calculator to check your numbers.
Written and reviewed by UK payroll and tax experts. We simplify complex HMRC rules to help you understand your take-home pay and tax codes.
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