Tax Year 2026/27

Self-Employed Tax Calculator 2026/27

Free UK sole trader tax calculator. Calculate your income tax, Class 2 and Class 4 National Insurance, student loan repayments, pension relief, and payments on account, using the latest HMRC rates for 2026/27. MTD for Income Tax now applies if your qualifying income (turnover) was over £50,000 in 2024/25, and from April 2027 if it was over £30,000 in 2025/26.

Rates checked against GOV.UK: October 2026

Business Income

Annual Turnover

Allowable Expenses

Other Income (employment, rental, etc.)

Scottish taxpayer

Student Loans

Student Loan Plan

Additional Loan

Pension

Personal Pension Contribution (£/year)

ⓘ

Pension Tax Relief: Your pension provider claims 20% basic rate relief automatically. If you're a higher/additional rate taxpayer, claim the extra relief via Self Assessment.

I use Tax-Free Childcare

Tax Breakdown

Turnover £0

Expenses −£0

Taxable Profit £0

Pension −£0

Personal Allowance £12,570

Income Tax −£0

Class 2 NI (treated as paid) −£0

Class 4 NI −£0

Class 2 is treated as paid if your profits are £7,105 or more, so there is nothing to pay. Below that it is voluntary at £3.65 a week. Class 4 is 6% on profits from £12,570 to £50,270 and 2% above. HMRC: Self-employed NI rates →

Student Loan −£0

Annual Take-Home £0

Monthly Take-Home £0

Effective Rate: 0.0%

Marginal Rate: 0.0%

Payment on Account

Total Tax Bill £0

1st PoA — 31 Jan −£0

2nd PoA — 31 Jul −£0

Payments on account are two payments, due 31 January and 31 July, each half of last year's income tax and Class 4 NI. Student loan and capital gains are paid in the balancing payment instead. You do not make them if last year's tax was under £1,000, or if you paid more than 80% of it outside Self Assessment (for example through PAYE). Shown here using this year's figures as an estimate.

Pension Contribution Benefit

Gross Contribution £0

Basic Rate Relief (auto) £0

Higher Rate Relief (via SA) £0

Total Tax Saving £0

Your Tax Calendar

Assumptions & Limitations

▼

Self-employed NI: Class 2 is treated as paid at profits of £7,105 or more (voluntary at £3.65 a week below that). Class 4 is 6% on profits from £12,570 to £50,270 and 2% above. Rates may differ if you have a deferment certificate. HMRC: Self-employed NI rates →
Tax region: England, Wales & NI rates by default. Tick “Scottish taxpayer” for Scottish bands. HMRC: Income Tax rates →
Allowable expenses: Only genuine business expenses are deductible. This calculator does not validate what qualifies as an allowable expense. HMRC: Allowable expenses →
Payment on account: Each is 50% of income tax plus Class 4 NI (not student loan), and none are due if that is under £1,000. You may reduce payments on account if you expect a lower bill next year. HMRC: Payments on account →
Pension relief: Personal contributions receive basic-rate relief at source; higher/additional rate relief must be claimed via Self Assessment. HMRC: Pension tax relief →
MTD: Making Tax Digital for Income Tax applies from April 2026 if your qualifying income (turnover) was over £50,000 in 2024/25, from April 2027 if over £30,000 in 2025/26, and from April 2028 if over £20,000 in 2026/27. HMRC: MTD for Income Tax →

This calculator is for illustrative purposes only and does not constitute financial or tax advice. Calculations are based on announced HMRC rates for the 2026/27 tax year. Always consult a qualified accountant or tax adviser for personalised guidance. Student loan repayment thresholds and rates are subject to annual review by the Student Loans Company.