Tradesperson Tax Return Guide UK 2026

The short answer

For the 2025/26 tax year, a self-employed tradesperson pays income tax at 20% on profits above the £12,570 personal allowance, plus 8% National Insurance. You file your Self Assessment return by 31 January 2027. Register for VAT once turnover passes £90,000, and be ready for Making Tax Digital from 6 April 2026.

When do I file my tax return as a tradesperson?

The UK tax year runs from 6 April to 5 April. For the 2025/26 year, self-employed tradespeople must file their Self Assessment return online by 31 January 2027, while paper returns are due by 31 October 2026. Submitting early gives you breathing room and avoids the automatic £100 late penalty.

Missing the deadline is the most common and most avoidable mistake, so set a reminder well before the January date rather than leaving it to the last week.

How much can I earn before paying income tax?

Every UK taxpayer gets a personal allowance of £12,570 a year, which is currently frozen. You only pay income tax on your profits above that figure, so a tradesperson earning £35,000 applies the rates below to about £22,430.

On top of income tax you pay Class 4 National Insurance at 8% on profits between £12,570 and £50,270, then 2% on anything above. This is the simplified figure most sole traders budget for each year.

Do I need to register for VAT?

You must register for VAT once your taxable turnover for a rolling 12-month period reaches £90,000. Staying just below the limit, or registering voluntarily, is a common debate: voluntary registration lets you reclaim VAT on materials and tools, and it can look more professional on your invoices.

Many UK tradespeople also find it helpful to review self assessment tax guide for tradespeople at this stage.

Keep an eye on your cumulative turnover as you grow, because a large contract can push you over the threshold quickly. HMRC sets out the rules at gov.uk VAT registration.

How much is deducted from my CIS payments?

Under the Construction Industry Scheme, a contractor usually deducts a percentage from your invoice and pays it to HMRC on your behalf. The deduction depends on your registration status, and it is not your final tax bill.

Keep your CIS statements safe, because you file the deductions against your Self Assessment at the end of the year. See gov.uk guidance on CIS and how CIS invoices work with a digital tool.

How does Making Tax Digital affect my tax return?

Making Tax Digital for Income Tax is rolling out for sole traders and landlords. You will need to keep digital records and submit quarterly updates using compatible software, starting with those earning over £50,000 from 6 April 2026, then over £30,000 in 2027 and over £20,000 in 2028.

This is not just about the annual return: quarterly updates become the new rhythm. The earlier you move your records into software, the less painful the transition. HMRC has published the full guidance at gov.uk Making Tax Digital for Income Tax.

If you are sorting this alongside other compliance work, read self-employed tax deadlines.

What expenses can I claim as a tradesperson?

You can deduct expenses that are wholly and exclusively for your trade. Tools, protective clothing, trade insurance, phone and internet used for work, and accountancy fees all qualify, provided you keep a receipt and the HMRC-approved record. Reimbursed material costs are not income, so they are not taxed.

Mileage is the figure most people get wrong: you can claim 45p per mile for the first 10,000 business miles in your own vehicle, then 25p per mile after that. Keep a simple log of trips so your claim stands up to a check.

How should I keep records to make filing easier?

Digital record keeping is now essential because of Making Tax Digital. Instead of a shoebox of receipts, record each job, invoice and expense as it happens. InvoiceAdept turns every invoice into an MTD-ready record, so you can head into your return with your numbers already sorted. See the invoicing features and Making Tax Digital guides.

Automating your invoicing also means your income is captured the moment you send a bill, rather than remembered at year end. That single habit removes the report timing mismatch that catches out so many sole traders.

Related: see payments on account for the self-employed for practical next steps.

What happens if I miss the deadline?

Filing late triggers an automatic £100 penalty, rising by more after three months and again after six months, plus interest on any tax you still owe. Underpaying or incorrectly reporting figures can bring a separate percentage-based penalty, so the cost of getting it wrong can be far higher than the tax itself.

The best protection is a clear process: invoice promptly, log every expense, set a calendar reminder for 31 January, and keep a copy of your submission confirmation.

FAQs

What is the personal allowance for 2025/26?

The personal allowance is £12,570. This is the amount you can earn in profit before any income tax is due, and it is currently frozen at this level.

When is the self-assessment deadline for tradespeople?

The online deadline is 31 January after the end of the tax year, so 31 January 2027 for the 2025/26 year. Paper returns are due by 31 October 2026.

At what turnover do I need to register for VAT?

You must register when your taxable turnover for a rolling 12-month period exceeds £90,000. Below that, voluntary registration can still be worth considering if you can reclaim VAT on materials.

Worth pairing this with our guide to National Insurance for the self-employed.

How does the Construction Industry Scheme affect me?

CIS applies if you work on construction sites for a contractor. HMRC-approved subcontractors are deducted at 20%, those not registered for the scheme are deducted at 30%, and gross payment status means no deduction.

Do I need accounting software for Making Tax Digital?

Yes. From 6 April 2026, sole traders earning over £50,000 must keep digital records and submit quarterly updates using compatible software, widening to £30,000 in 2027 and £20,000 in 2028. A tool like InvoiceAdept keeps your records MTD-ready for free, covering invoicing, CIS and VAT in one place.

The bottom line

Filing a UK tax return as a tradesperson in 2026 comes down to a few numbers: the £12,570 personal allowance, the 20% basic rate, 8% National Insurance, the £90,000 VAT threshold, and the MTD rollout starting 6 April 2026. Get the records right through the year and the return becomes a formality.

InvoiceAdept keeps your invoicing, CIS and MTD-ready records in one place, free. Compare the full feature set on our pricing page, browse the electricians directory, or start free in 30 seconds.