Minimum Wage 18: What an 18-Year-Old Actually Earns After Tax in 2026/27

Minimum Wage 18: What You Actually Earn After Tax

If you are 18 and starting work or comparing job offers, knowing the minimum wage 18 rate and what it means for your take-home pay is essential. From April 2026, the National Minimum Wage for 18 to 20 year olds rises to £10.85 per hour – an 8.5% increase. This guide explains the gross salary, deductions, and net pay, so you can make informed decisions.

The Legal Minimum for 18-Year-Olds

GOV.UK sets the National Minimum Wage (NMW) by age group. For 18 to 20 year olds, the rate from April 2026 is £10.85 per hour. This is a legal minimum; employers cannot pay less. The rate for 16-17 year olds and apprentices is £8.00 per hour. Once you turn 21, you move to the higher National Living Wage (£12.71 per hour).

Gross Salary at 37.5 Hours per Week

Most full-time roles are based on 37.5 hours per week, though some use 35 or 40 hours. At 37.5 hours:

• Weekly gross: £10.85 × 37.5 = £406.88
• Monthly gross (annual ÷ 12): £21,158 ÷ 12 = £1,763.17
• Annual gross: £10.85 × 37.5 × 52 = £21,157.50

If you work 40 hours, annual gross is £22,568; at 35 hours it is £19,747.

Take-Home Pay: Income Tax and National Insurance

Your take-home pay depends on deductions. For 2026/27, the standard Personal Allowance is £12,570 – you pay no tax on this. The remaining earnings are taxed at 20% (basic rate). Employee National Insurance (NI) is 8% on earnings above £12,570.

For £21,158 gross (37.5 hrs/week):

Deduction	Calculation	Amount
Income tax	20% × (£21,158 – £12,570) = 20% × £8,588	£1,717.60
National Insurance	8% × (£21,158 – £12,570) = 8% × £8,588	£687.04
Take-home pay	£21,158 – £1,718 – £687	£18,753

Monthly take-home: £1,562.75 (about £1,563).

If you work 40 hours, take-home is about £19,700 per year (£1,642 per month).

Pension Contributions and Auto-Enrolment

If you are aged 22 or over and earn more than £10,000, your employer must automatically enrol you into a workplace pension. However, 18-year-olds are not yet subject to auto-enrolment until age 22. If you choose to opt in voluntarily, a typical 5% employee contribution on qualifying earnings would reduce your take-home by about £78 per month (depending on scheme rules). Many employers match contributions, so it can be worthwhile.

Student Loan Repayments

Most student loan plans have thresholds above £21,158:

• Plan 1: £26,900
• Plan 2: £29,385
• Plan 4: £33,795
• Plan 5: £25,000

At £21,158, no repayment is due under Plans 1, 2, 4, or 5. However, if you have a Postgraduate Loan, the threshold is £21,000, so you would repay 6% of earnings above that – about £9.50 per month. Check your loan type on your student finance account.

Scotland: Slightly Higher Take-Home

If you live in Scotland, income tax bands differ. The starter rate is 19% on the first £3,967 of taxable income, then 20% basic rate. For a £21,158 earner, Scottish income tax is about £1,678 – roughly £40 less than in England. That means monthly take-home is about £1,567 instead of £1,563. National Insurance is the same across the UK.

Comparing Job Offers: What to Look For

When negotiating or comparing job offers, focus on:

• Gross salary – ensure it meets the legal minimum for your age.
• Hours per week – a 40-hour week at £10.85 gives £22,568 gross, but more deductions.
• Pension – employer contributions are valuable; don’t opt out without considering long-term benefits.
• Location – if in Scotland, take-home is slightly higher.
• Other benefits – holiday pay, sick pay, training opportunities.

Use our take-home calculator to see exact figures for your situation. For more salary comparisons, browse our salary articles.

Summary

The minimum wage 18 rate of £10.85 per hour means a full-time worker takes home around £1,563 per month after tax and NI. This is a solid starting point, but remember that once you turn 21, you’ll be entitled to the higher National Living Wage. Always check your payslip and official GOV.UK guidance for the most accurate deductions.

Frequently Asked Questions

What is the minimum wage for an 18-year-old in 2026?

From April 2026, the National Minimum Wage for workers aged 18 to 20 is £10.85 per hour. This is an increase from £10.00 in 2025/26. The rate applies to all hours worked, including overtime. Once the worker turns 21, they become eligible for the National Living Wage (£12.71 per hour).

How much take-home pay does an 18-year-old on minimum wage get?

For a full-time 37.5-hour week, gross annual pay is about £21,158. After income tax (20% on earnings above £12,570) and National Insurance (8% on earnings above £12,570), annual take-home is approximately £18,753, or £1,563 per month. If enrolled in a workplace pension at 5% of qualifying earnings, take-home falls to around £1,485 per month. Student loan repayments may apply if the worker has a Postgraduate Loan (threshold £21,000).

Do 18-year-olds pay National Insurance?

Yes, 18-year-olds pay National Insurance if their earnings exceed the primary threshold (£12,570 per year). The rate is 8% on earnings between £12,571 and £50,270. At the minimum wage of £10.85 per hour and 37.5 hours per week, the annual NI contribution is about £687. Note that under-21s may be eligible for a lower NI rate (Category M) in some circumstances, but the standard Category A applies to most 18-year-olds.