To take home £18,000 net, you need £20,111 gross
Reverse tax calculation · England & Wales · 2025-26 tax year
Full tax breakdown for £20,111 gross → £18,000 net
| Item | Annual | Monthly | Weekly |
|---|---|---|---|
| Gross salary | £20,111 | £1,676 | £387 |
| Personal Allowance (tax-free) | £12,570 | £1,048 | £242 |
| Income Tax | −£1,508 | −£126 | −£29 |
| National Insurance | −£603 | −£50 | −£12 |
| Net take-home | £18,000 | £1,500 | £346 |
How to earn £18,000 take-home pay in 2025-26
If your goal is a take-home salary of £18,000 per year, your employer needs to put £20,111 on your contract. The difference — £2,111 — goes directly to HMRC as Income Tax (£1,508) and National Insurance (£603).
On a monthly basis, your payslip shows a gross of £1,676 per month, from which £126 Income Tax and £50 NI are deducted, leaving your net £1,500 per month.
The effective combined tax rate at this salary is 10.5% — meaning out of every pound your employer pays, 10.5p goes to HMRC and 89.5p is yours.
Frequently asked questions
What gross salary gives me £18,000 take-home pay?
To take home £18,000 net in 2025-26, you need a gross salary of £20,111. Your employer deducts £1,508 Income Tax and £603 National Insurance, totalling £2,111 — leaving £18,000 in your bank.
How do I calculate gross from net salary?
You cannot reverse UK tax with a simple formula because the deductions are non-linear. The correct method is to use a binary search: find the gross salary that, after applying the 2025-26 tax engine (Personal Allowance £12,570, 20%/40%/45% Income Tax, 8%/2% NI), produces exactly your desired net. For £18,000 net, that gross is £20,111.
Why does gross differ so much from net?
On a gross salary of £20,111, HMRC deducts £2,111 in total — comprising Income Tax (£1,508) and National Insurance (£603). The effective combined rate is 10.5%. Higher earners pay a larger percentage because of the progressive tax system.
What is £18,000 net salary per month?
£18,000 take-home per year equals £1,500 per month (£346 per week). Your gross salary of £20,111 works out as £1,676 per month gross.
Does this include pension contributions or student loan?
No — this calculation uses a standard tax code (1257L) with no pension contributions, no student loan repayments, and no other adjustments. If you have a pension or student loan, your required gross salary will be higher than £20,111. Use the full salary calculator to model those.
Related calculators: