Salary & Take-Home Pay
See exactly how Income Tax, National Insurance and pension contributions reduce your gross salary.
£3,750 per month
Gross income
£45,000
Income Tax
£6,036
National Insurance
£2,594
Pension contribution
£2,250
Total deductions
£10,880
24.2% effective rate
Take-home pay
£34,120
£2,843 per month
Your marginal tax rate is 20%. This means for every extra £1 earned above your current salary, you keep 80p.
Personal Allowance tapers by £1 for every £2 earned above £100,000, reaching zero at £125,140. Marginal rate is the rate on your next pound earned — different from the effective rate which is total tax divided by total income.
Assumptions
Based on 2026/27 UK tax rules for England. Tax bands: 20% to £50,270, 40% to £125,140, 45% above. Personal Allowance £12,570 (tapered above £100,000). National Insurance 8% on earnings between £12,570 and £50,270, 2% above. This is an educational estimate — not financial advice.