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PAYE

Tax

Pay As You Earn

The system HMRC uses to collect Income Tax and National Insurance directly from an employee's salary before it's paid, rather than through a separate tax return.

Definition

Pay As You Earn (PAYE) is the system HMRC uses to collect Income Tax and National Insurance from employees automatically, deducting both from your salary before it reaches your bank account. It's the default way almost every UK employee pays tax — there's no separate filing step required for salary income alone.

Your employer runs the calculation each pay period based on your tax code and your earnings, then pays the deducted amount to HMRC on your behalf. Run your own numbers through the UK Take-Home Pay Calculator to see exactly how PAYE deductions apply to your salary.

Key Things to Know

  • PAYE covers both Income Tax and National Insurance in the same deduction cycle, even though they're calculated using different bands and rates.
  • Your tax code drives the calculation. The standard 2024/25 code is 1257L, but it adjusts if you have benefits-in-kind, a second job, or owe tax from a previous year.
  • PAYE doesn't automatically account for pension contributions or student loan repayments beyond what's set up through your employer. If you make additional pension contributions outside your workplace scheme, you may need to claim extra relief separately.
  • It's cumulative across the tax year, not calculated fresh each month in isolation — so a bonus in one month can push that month's deduction higher, then even out over the following months.
  • If your take-home pay looks lower than expected, check whether pension contributions or a Student Loan Plan deduction are also being taken through the same PAYE process before assuming your tax code is wrong.

Related Calculators

UK Take-Home Pay Calculator →Calculate your UK net take-home pay after Income Tax, National Insurance, pension contributions, and student loan repayments for the 2024/25 tax year.
UK ISA Calculator →Project your Individual Savings Account (ISA) growth in seconds. Enter your lump sum, monthly contribution, and return rate to see tax-free returns.

Related Terms

National InsuranceNational Insurance Contributions (NICs)ISAIndividual Savings Account

Frequently Asked Questions

No — your employer deducts Income Tax and National Insurance automatically each payday and sends it to HMRC on your behalf. You don't need to file anything yourself unless you have additional income outside your salary.
Your tax code tells your employer how much tax-free Personal Allowance you're entitled to before PAYE starts deducting tax. The standard code for the 2024/25 tax year is 1257L, reflecting the £12,570 Personal Allowance, though it can differ if you have other income or benefits.
Deductions shift when you cross a tax band threshold, when your tax code changes, or when National Insurance thresholds are updated at the start of a new tax year. A bonus or one-off payment can also push a single month's deduction higher even though your annual salary hasn't changed.
No — PAYE is for salary paid through an employer and happens automatically. Self Assessment is a separate system for reporting income HMRC doesn't already know about, such as self-employment earnings, rental income, or dividends above your allowance.
Yes — your payslip breaks down Income Tax and National Insurance separately, and you can cross-check the total against the UK Take-Home Pay Calculator using your gross salary and tax code assumptions. If the figures don't match, it's worth confirming your tax code with HMRC directly.