Pay Less Tax Legally
Tax avoidance (legal) is completely different from tax evasion (illegal). The UK tax system provides numerous allowances, reliefs, and exemptions designed to encourage saving and investment. Not using them means you are paying more tax than you need to. Here are the most effective strategies for UK taxpayers.
UK Income Tax Bands 2025/26
- Personal Allowance — £12,570 (tax-free)
- Basic rate (20%) — £12,571 to £50,270
- Higher rate (40%) — £50,271 to £125,140
- Additional rate (45%) — Over £125,140
- Personal Allowance taper — Reduced by £1 for every £2 earned over £100,000. Completely lost at £125,140. This creates an effective 60% tax rate between £100,000-£125,140
Top Tax-Saving Strategies
- Maximise pension contributions — Contributions receive tax relief at your marginal rate. A higher rate taxpayer contributing £10,000 effectively pays only £6,000 (40% relief). Salary sacrifice is even better as you also save National Insurance. Annual allowance: £60,000
- Use your full ISA allowance — £20,000/year invested tax-free. All returns (interest, dividends, capital gains) are tax-free forever. A couple can shelter £40,000/year
- Marriage Allowance — If one spouse earns under £12,570 and the other is a basic rate taxpayer, transfer £1,260 of Personal Allowance to save up to £252/year. Claim at gov.uk — can be backdated 4 years
- Salary sacrifice — Swap salary for employer pension contributions, cycle-to-work scheme, or electric car benefit. Reduces your gross salary so you pay less income tax AND National Insurance
- Capital Gains Tax allowance — £3,000 per person per year (2025/26). Realise gains up to this amount tax-free. Couples can use both allowances (£6,000 total). Transfer assets to spouse before selling if they have unused allowance
- Dividend allowance — £500 tax-free dividends per year (2025/26). If you run a limited company, structure income as salary up to NI threshold + dividends to minimise tax
Tax-Saving for Higher Earners (£50K+)
- Pension contributions to reduce tax band — If you earn £55,000, contributing £5,000 to pension brings taxable income to £50,000, keeping you in the basic rate band. Saves £1,000 in tax immediately plus the pension grows tax-free
- Childcare costs — Tax-Free Childcare: government adds 20% to your childcare payments (up to £2,000/year per child). Or use employer childcare vouchers if still enrolled
- Gift Aid — Charitable donations get 25% added by HMRC. Higher rate taxpayers can claim additional 20% relief through self-assessment. £100 donation costs you only £60 after all relief
- £100,000+ earners — The 60% trap: you lose £1 of Personal Allowance for every £2 over £100,000. Pension contributions are the most effective way to bring income below £100,000 and restore your full Personal Allowance
- EIS and SEIS — Enterprise Investment Scheme offers 30% income tax relief on investments in qualifying small companies (up to £1,000,000/year). Seed EIS offers 50% relief (up to £200,000). High risk but significant tax benefits
Tax-Saving Checklist
- ✅ Use full £20,000 ISA allowance
- ✅ Contribute enough to pension to get full employer match
- ✅ Claim Marriage Allowance if eligible (save £252/year)
- ✅ Use salary sacrifice for pension, bike, or electric car
- ✅ Claim working from home allowance if applicable (£6/week)
- ✅ Use Capital Gains Tax allowance before April 5
- ✅ Claim Gift Aid on all charitable donations
- ✅ Register for Tax-Free Childcare if you have children
- ✅ Higher rate taxpayers: claim pension relief via self-assessment
- ✅ £100K+ earners: use pension contributions to avoid 60% trap