Sole Trader Tax Calculator 2026/27

💼 Sole Trader Tax

Self-Employment Turnover (gross income before expenses)

Allowable Business Expenses (optional)

Other Taxable Income (employment, rental, savings — optional)

Class 2 NIC (voluntary — only relevant if profits below £7,105)

⚠️ Important Disclaimer — Please Read Carefully This calculator provides rough estimates for illustrative and general information purposes only. It is not tax advice and must not be relied upon when making any financial, tax or investment decisions. The calculations use simplified assumptions and may not reflect your actual tax liability.

Tax rules are highly complex and your individual circumstances — including capital allowances, loss relief, partnership profits, marriage allowance transfer, payments on account, student loan, High Income Child Benefit Charge and many other factors — will affect the actual tax due. Rates and thresholds shown are for the selected tax year based on information available at the time of publication and may have changed. The Tax Lead Limited accepts no liability for any loss arising from use of this calculator.

Always seek professional tax advice before making any decisions. Book a Free Discovery Call with our Chartered Certified Accountants and Chartered Tax Advisers — we’ll give you a precise, personalised assessment of your Self Assessment position.

Total Tax & NIC —

£0

Income tax + Class 4 NIC (+ voluntary Class 2 if chosen)

Self-Employment Profit (turnover − expenses)

Total Taxable Income (profit + other)

Personal Allowance Used

Income Tax

Class 4 NIC (6% / 2% bands)

Class 2 NIC (voluntary)

Net Take-Home from Self-Employment

Effective Combined Rate (on SE profit)

Income Tax Band Breakdown

Band	Taxable Income	Tax

📋 2026/27 Sole Trader Tax Rates

Personal Allowance: £12,570 (frozen to 2031)
Basic rate 20%: £12,571 – £50,270
Higher rate 40%: £50,271 – £125,140
Additional rate 45%: Over £125,140
PA tapers above £100,000 (£1 per £2 over)

🔵 Self-Employed NIC 2026/27

Class 4 main: 6% on profits £12,570 – £50,270
Class 4 upper: 2% on profits over £50,270
Class 2 (voluntary): £3.65/week if profits below £7,105
Profits above £7,105 → automatic State Pension credit (no Class 2 due)

💡 Key Deadlines for Sole Traders

Self Assessment online filing & balancing payment: 31 January. Payments on account: 31 January & 31 July. MTD ITSA mandation from April 2026 for gross income over £50,000 — check your status →

Sole Trader Tax Calculator 2026/27

💼 Sole Trader Tax

Total Tax & NIC —

📋 2026/27 Sole Trader Tax Rates

🔵 Self-Employed NIC 2026/27

💡 Key Deadlines for Sole Traders

Should You Incorporate?

Sole Trader Next Steps

Sole Trader Tax Calculator 2026/27

💼 Sole Trader Tax

Total Tax & NIC —

📋 2026/27 Sole Trader Tax Rates

🔵 Self-Employed NIC 2026/27

💡 Key Deadlines for Sole Traders

Should You Incorporate?

Sole Trader Next Steps

MTD ITSA Compliance

Sole Trader Setup Guide 2026/27

MTD ITSA Threshold Checker

Should I Incorporate?