Gross Earnings Required

Find out how much you need to earn before tax to have a specific amount left after deductions.

Amount you need after tax

Your current annual salary

Include employee National Insurance (8%)

Gross earnings required

£1,250

To have £1,000 after tax, you need to earn £1,250 gross. That means £250 goes in tax on those extra earnings.

Net amount needed

£1,000

Extra tax payable

£250

Marginal rate

20%

On your next pound

Formula used

Gross earnings = Net amount ÷ (1 − marginal deduction rate)

At 20% (basic rate), the deduction rate is 20%, so you keep 80p of every extra pound.

This formula is simplified — it assumes the extra earnings stay within the same tax band. If extra earnings cross a threshold, the actual tax will be higher because the portion in the higher band is taxed at a higher rate. Personal Allowance tapering above £100,000 is not fully modelled here.

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.