United Kingdom Tax Calculator 2026

The UK uses a progressive tax system with thresholds frozen until 2031. Personal allowance is £12,570 (reduced if income exceeds £100,000). Tax rates for England, Wales, and Northern Ireland: 20% on income £12,571-£50,270, 40% on £50,271-£125,140, 45% above £125,140. Scotland has different rates with more bands. From April 2026, dividend tax rises to 10.75%/35.75%/39.35%. From April 2027, savings and property income rates increase by 2% to 22%/42%/47%.

Yes, if you spend 183 days or more in the UK during a tax year, you automatically become UK tax resident and must pay tax on worldwide income. The Statutory Residence Test (SRT) also considers other factors like UK ties (family, accommodation, work). Digital nomads staying under 183 days may still be resident if they have sufficient UK ties. The UK doesn't have a specific digital nomad visa. Non-residents only pay UK tax on UK-source income.

Employees pay Class 1 NI: 8% on earnings £12,571-£50,270, then 2% above £50,270. Employers pay 15% on earnings above £5,000 per year (reduced from £9,100 in 2024/25). Employment Allowance increased to £10,500 annually for eligible employers (£100,000 cap removed). Self-employed pay Class 4 NI: 6% on profits £12,570-£50,270, 2% above. Class 1A and 1B rates also 15%. Veterans and Freeport employees get special reliefs.

Personal allowance £12,570 (tapers £1 for every £2 earned above £100,000, fully removed at £125,140). Marriage allowance £1,260 transferable between spouses. Pension contributions get tax relief at marginal rate. Trading allowance £1,000 for self-employment. Property allowance £1,000 for rental income. Rent-a-room relief £7,500. Professional subscriptions, business expenses, charitable donations via Gift Aid. Capital gains tax allowance £3,000.

Tax year runs April 6 to April 5. Self Assessment deadline: October 31 for paper returns, January 31 for online returns. Payment deadline also January 31. From April 2026, Making Tax Digital introduces quarterly reporting for self-employed. Must register by October 5 after tax year end. PAYE employees with only employment income usually don't file. Must file if: self-employed, £100,000+ income, capital gains above allowance, untaxed income over £2,500.

HMRC treats crypto as property, subject to Capital Gains Tax on disposals (selling, swapping, spending, gifting). CGT rates: 18% for basic rate taxpayers, 24% for higher/additional rate. £3,000 annual CGT allowance. Mining, staking, airdrops taxed as income at 20%/40%/45%. Same-day rule, bed and breakfast rule (30 days), Section 104 pooling apply. Losses can offset gains. From January 2026, CARF reporting requires exchanges to report data to HMRC automatically.

Corporation Tax: 19% for profits up to £50,000 (small profits rate), marginal relief £50,000-£250,000, 25% above £250,000. Employment Allowance £10,500 reduces employer NI. Annual Investment Allowance for capital expenditure. R&D tax credits available. Freeport and Investment Zone reliefs (0% employer NI up to £25,000 per employee for 3 years). Startup equity schemes (SEIS, EIS). Patent Box lower rate. Capital allowances on assets.

From April 2026, dividend tax rates increase: 10.75% (ordinary rate for basic taxpayers), 35.75% (upper rate for higher taxpayers), 39.35% (additional rate unchanged). Dividend allowance remains £500 annually - only dividends above this are taxed. Dividends taxed separately from other income. Directors taking salary plus dividends must plan carefully as dividends don't attract National Insurance but have higher tax rates than before.