Making Tax Digital for Sole Traders: Complete Guide

If you are a sole trader in the UK, Making Tax Digital (MTD) for Income Tax is now part of your tax obligations — or will be very soon. Since April 2026, sole traders with qualifying income over £50,000 must keep digital records and file quarterly updates with HMRC using compatible software.

This guide walks you through everything you need to know as a sole trader: who is affected, how to register, what you need to report, and how to stay compliant without it taking over your life.

What Is Making Tax Digital for Sole Traders?

Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) replaces the old once-a-year Self Assessment process with a more regular reporting cycle. As a sole trader, you now need to:

  • Store your business income and expenses in digital format using compatible software
  • Send HMRC a summary of your income and expenses every quarter
  • Submit an End of Period Statement to confirm your annual figures
  • File a Final Declaration (which replaces your Self Assessment tax return)

The aim is to keep your tax affairs up to date throughout the year rather than leaving everything to a single filing in January.

Am I Affected?

You fall within MTD for Income Tax if you are a sole trader (or landlord) and your gross qualifying income exceeds the threshold:

  • From April 2026: Income over £50,000
  • From April 2027: Income over £30,000

Qualifying income means your total turnover from self-employment and/or property income before deducting any expenses. It does not include employment income, savings interest, or dividends.

Example: You run a freelance graphic design business. Your gross income (total invoiced to clients) in 2025-26 was £53,000. Even if your profit after expenses was only £28,000, your gross income puts you above the £50,000 threshold, so you must comply from April 2026.

If you are not sure whether you are affected, our quick guide on whether you need MTD software can help you decide in two minutes.

Step 1: Register for MTD for ITSA With HMRC

You need to sign up for MTD for Income Tax through your HMRC online account. This is a separate registration from your existing Self Assessment — even if you already file tax returns online, you must specifically opt in (or be enrolled) for MTD.

To register, you will need:

  • Your Government Gateway user ID and password
  • Your National Insurance number
  • Your Unique Taxpayer Reference (UTR) — found on previous Self Assessment correspondence

Registration can be done through the GOV.UK website. Once registered, HMRC will confirm that you are signed up for MTD for ITSA.

Step 2: Choose Compatible Software

You cannot submit quarterly updates via HMRC's existing online Self Assessment portal. You need software that connects to HMRC's MTD API. Your options include:

  • Full accounting packages like Xero, QuickBooks, or FreeAgent — these are powerful but can be complex and expensive for sole traders with straightforward affairs
  • Dedicated MTD software like ClearMTD — built specifically for quarterly reporting and digital record keeping, without the overhead of full double-entry accounting
  • Spreadsheets with bridging software — technically possible but error-prone and not recommended for most people

For a detailed comparison, see our guide to the best MTD software for sole traders.

Step 3: Set Up Your Digital Records

Once you have your software, you need to record your income and expenses digitally from the start of the tax year (6 April). At a minimum, you must record:

  • Each transaction's date
  • The amount
  • A category (e.g., sales income, office supplies, travel, phone)

You do not need to upload receipts to the software (though it is good practice). The key requirement is that the records are stored digitally and can be used to generate your quarterly submissions.

Tip for sole traders: Keep it simple. If you receive payment into your bank account for work done, record the date, the client or description, and the amount. For expenses, do the same. Most MTD software lets you categorise transactions as you go.

Step 4: Submit Your Quarterly Updates

Each tax year is divided into four quarters:

Quarter Period Submission Deadline
Q1 6 April – 5 July 7 August
Q2 6 July – 5 October 7 November
Q3 6 October – 5 January 7 February
Q4 6 January – 5 April 7 May

Each quarterly update is a summary of your income and expenses for that period. Your software generates this from your records and submits it to HMRC digitally.

These are not tax returns — they are progress updates. You are not calculating tax owed at this stage. The purpose is to give both you and HMRC a running picture of your income.

For a deeper look at the quarterly process, read our guide on HMRC quarterly reporting.

Step 5: File Your End of Period Statement and Final Declaration

After the tax year ends (5 April), you need to:

  1. Submit an End of Period Statement (EOPS) — this finalises your business income and expenses for the year. Think of it as closing your books.
  2. Submit a Final Declaration — this replaces your Self Assessment return. It brings together all your income sources (including any employment income, savings, etc.) and confirms your tax position for the year.

The deadline for both is 31 January following the end of the tax year — the same deadline as the old Self Assessment return.

Common Mistakes Sole Traders Make

Waiting until the deadline. Quarterly reporting means you cannot leave everything to January. Build a habit of recording income and expenses weekly or monthly.

Confusing gross income with profit. The £50,000 and £30,000 thresholds are based on your gross income (turnover), not your profit. Many sole traders with modest profits still exceed the threshold.

Not registering separately for MTD. Being registered for Self Assessment does not automatically register you for MTD for ITSA. You must sign up specifically.

Overcomplicating your software. As a sole trader, you probably do not need a full accounting suite. Dedicated MTD tools are faster to set up and easier to use.

What Happens If You Miss a Deadline?

HMRC uses a points-based penalty system. Each late submission earns you a penalty point. Once you reach the threshold (currently four points for quarterly obligations), you receive a £200 fine — and every subsequent late submission triggers another £200 penalty until you bring your compliance up to date.

There are also late payment penalties if you underpay or pay tax late. Read our full guide on MTD penalties for late submission for the complete picture.

Getting Started With ClearMTD

ClearMTD is built for sole traders and landlords who need MTD compliance without the complexity of full accounting software. You can record your income and expenses, generate quarterly updates, and submit directly to HMRC — all from one simple dashboard.

There is no steep learning curve, no double-entry bookkeeping, and no features you will never use. Create your free account and get set up in minutes.

Frequently Asked Questions

Can my accountant handle MTD for me?

Yes. Many accountants offer MTD services where they manage quarterly submissions on your behalf. However, you (or your accountant) still need compatible software, and you still need to keep digital records throughout the year. MTD does not remove the need for you to track your income and expenses in real time. Read our full guide: Do I Need an Accountant for MTD?

Do I need to submit VAT quarterly as well?

MTD for VAT and MTD for Income Tax are separate obligations. If you are VAT-registered, you already submit VAT returns quarterly under MTD for VAT (which has been in place since 2019). MTD for Income Tax is an additional requirement on top of that.

What if my income drops below the threshold during the year?

Once you are mandated into MTD for ITSA, you generally remain in the scheme even if your income dips below the threshold in a particular year. HMRC has specific rules about when you can leave the scheme — check the latest guidance on GOV.UK or speak to your accountant.

Can I use a spreadsheet instead of software?

Technically, you can keep records in a spreadsheet and use bridging software to submit your updates to HMRC. In practice, this is more complicated than using dedicated MTD software and leaves more room for error. For most sole traders, purpose-built software is the better choice.

Is there a free option?

HMRC offers a basic free tool for simple affairs, and some software providers offer free tiers with limited features. ClearMTD offers a free account to get you started — sign up here to see if it meets your needs.