What is the effective tax rate on £42,000?

The estimated overall deduction rate on a £42,000 salary is 19.6%, combining Income Tax and employee National Insurance across £8,240 of total deductions.

How much Income Tax and National Insurance do I pay on £42,000?

The estimate for 2026/27 is £5,886 in Income Tax and £2,354 in employee National Insurance per year, based on a Personal Allowance of £12,570.

What Personal Allowance applies to a £42,000 salary?

The estimated Personal Allowance on £42,000 is £12,570, leaving £29,430 of taxable income.

£42,000 Salary After Tax UK – 2026/27

England, Wales & Northern Ireland · Tax year 6 April 2026 – 5 April 2027

Rates verified for UK tax year 2026/27 · Reviewed by the CalculatorZone editorial team

Annual Take-Home

£33,760

Monthly Take-Home

£2,813

Weekly Take-Home

£649

Full Pay Breakdown

	Annual	Monthly	Weekly
Gross Salary	£42,000	£3,500	£808
Income Tax	-£5,886	-£491	-£113
National Insurance	-£2,354	-£196	-£45
Take-Home Pay	£33,760	£2,813	£649

Income Tax Band Breakdown

Band	Rate	Taxable Income	Tax Paid
Personal Allowance	0%	£12,570	£0
Basic Rate	20%	£29,430	£5,886
Total Income Tax			£5,886

How is £42,000 taxed in the UK?

On a £42,000 salary in the UK (tax year 2026/27), the estimate is £5,886 in Income Tax and £2,354 in employee National Insurance, leaving take-home pay of £33,760 per year — £2,813 per month or £649 per week. The estimated overall deduction rate is 19.6%. These figures cover England, Wales and Northern Ireland and use a standard Personal Allowance of £12,570. Payroll calculations are made per pay period, so actual deductions can differ slightly.

The figures above assume you have no other income, no pension contributions, no student loan, and no other deductions or tax codes. If your circumstances differ — for example, if you contribute to a workplace pension or have a different tax code — your actual take-home pay may vary. Use our full calculator below for a personalised breakdown.

Frequently asked

On a £42,000 gross salary (England, Wales and Northern Ireland, tax year 2026/27), the estimated take-home pay is £2,813 per month — £33,760 per year or £649 per week — after Income Tax and employee National Insurance.

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Rates & sources2026/27

2026/27 Income Tax bands for England, Wales and Northern Ireland, Category A employee NI thresholds, and student-loan repayment thresholds.

Rates used for 2026/27
Band / figure	Rate
Personal allowance	£12,570
Basic rate (20%)	up to £50,270
Higher rate (40%)	£50,271 – £125,140
Additional rate (45%)	over £125,140

Source: GOV.UK — 2026/27 employer rates and thresholds — source checked for 2026/27.

Calculation method and linked source reviewed on 3 August 2026.

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