Check Your MTD Readiness & Tax Liabilities
Are your gross earnings above the £50,000 or £30,000 thresholds? Use our Sole Trader Calculator to model your income, expenses, and tax obligations.
What is Making Tax Digital for ITSA?
Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) is the largest overhaul of the UK personal tax system in over a generation.
Passed under Schedule 14 of the Finance (No. 2) Act 2017 and The Income Tax (Digital Requirements) Regulations 2021, MTD replaces the traditional once-a-year Self Assessment tax return with digital record keeping and quarterly digital submissions directly to HMRC.
The Short Answer
MTD replaces the single annual tax return with 4 quarterly digital updates.
If your gross turnover exceeds the qualifying thresholds, you must use HMRC-approved accounting software to keep digital records and submit quarterly summaries.
Who Must Comply & Rollout Schedule
The UK Government is phasing in MTD for ITSA based on qualifying gross income:
| Phase | Mandatory Start Date | Who Must Comply |
|---|---|---|
| Phase 1 | 6 April 2026 | Sole traders and landlords with gross income over £50,000 |
| Phase 2 | 6 April 2027 | Sole traders and landlords with gross income over £30,000 |
| Future Phase | Under Consultation | Sole traders with gross income over £20,000 |
Exemptions: General partnerships, trusts, and individuals earning under the relevant gross thresholds are not yet mandated into MTD for ITSA and can continue using standard online Self Assessment.
The Gross Income Catch (Don't Be Caught Out)
The single biggest misconception among UK freelancers is that the £50,000 and £30,000 thresholds apply to net taxable profit. They do not.
HMRC assesses eligibility on your Gross Income (total turnover or turnover plus rental revenue):
Real Example: Marcus (E-Commerce Trader)
Marcus runs an online shop. In the tax year, he achieves £62,000 in gross turnover. However, after stock costs, packing, and courier fees of £28,000, his net profit is only £34,000.
Takeaway: Marcus MUST register for MTD in April 2026. Because his gross turnover (£62,000) exceeds £50,000, his lower net profit does not exempt him.
Combining Multiple Income Streams
If you run two separate sole trader businesses, or if you freelance while renting out a flat, HMRC adds the gross revenues together:
- £28,000 freelance design turnover
- £24,000 residential rental gross income
- Total Qualifying Income: £52,000 → Mandated for April 2026
(Note: Salaried employment income taxed under PAYE and dividend income from limited companies do NOT count towards the MTD threshold.)
The 3 Core MTD Obligations
Once mandated into MTD for ITSA, you must adhere to three strict requirements:
1. Digital Record Keeping
You must maintain digital transaction records of every business sale and allowable expense. This means recording the date, amount, and expense category within approved accounting software. Paper receipts can be photographed and stored digitally.
2. Quarterly Updates (Every 3 Months)
Instead of filing once a year, you must send four summary updates of your income and expenses to HMRC:
| Quarter | Period Covered | Submission Deadline |
|---|---|---|
| Q1 | 6 April to 5 July | 5 August |
| Q2 | 6 July to 5 October | 5 November |
| Q3 | 6 October to 5 January | 5 February |
| Q4 | 6 January to 5 April | 5 May |
Crucial reassurance: Quarterly updates are high-level transaction totals. You do not have to perform full year-end accounting adjustments (such as capital allowances or accruals) every quarter.
3. Final Declaration (By 31 January)
At the end of the tax year, you confirm your full figures, apply any personal reliefs or allowances, include non-business income (such as bank interest or dividends), and finalize your tax bill by 31 January.
HMRC-Compatible Software & Bridging Tools
You cannot file MTD for ITSA through the standard HMRC web portal. You must connect through API-compatible software:
Software Options for Sole Traders:
- Comprehensive Cloud Accounting: Software like FreeAgent, Xero, and QuickBooks automatically syncs with UK bank feeds and handles MTD ITSA quarterly filing with one click.
- Mobile-First Freelancer Apps: Lightweight apps designed specifically for sole traders and side hustlers (such as untied and Coconut) offer low-cost digital record keeping.
- Digital Bridging Software: If you prefer keeping track of transactions in Excel or Google Sheets, bridging software links your spreadsheet to HMRC's API without re-entering data.
Compare top platforms and pricing in our Sole Trader Accounting Software Guide.
Penalty Points & Compliance
HMRC enforces MTD compliance through a points-based penalty regime (Finance Act 2021, Schedule 24):
- Points Accumulation: For every quarterly deadline or final declaration you miss, you receive 1 penalty point.
- Penalty Threshold: For quarterly filers, reaching 4 points triggers an immediate £200 fine.
- Subsequent Failures: Every missed deadline while at the 4-point threshold incurs an additional £200 fine.
- Point Expiry: Points expire after a period of clean compliance (filing all returns on time for 12 consecutive months).
Get Ahead of the MTD Transition
- Audit your turnover: Calculate your gross turnover across all self-employment and property activities for the past 12 months.
- Eliminate paper logbooks: Transition to digital invoicing and cloud bank feeds today.
- Select compatible software: Test an HMRC-approved accounting tool before your mandatory start date.
- Learn your allowable deductions: Review our complete Allowable Expenses Guide to optimize your quarterly expense categorisation.
Frequently Asked Questions
UK Tax Information & Editorial Policy
TaxWiz content is produced for general educational information for UK sole traders, side hustlers, and creators under the 2026/27 tax year legislation (Finance Acts & HMRC internal manuals). We do not provide regulated legal or financial advice. Tax outcomes depend on individual circumstances. For bespoke advice, consult a qualified UK chartered accountant (ICAEW/CTA/AAT). Read our full Disclaimer and Editorial Standards.