PAYE Income Tax & NI Details
📊 PAYE Payslip Breakdown
Pay As You Earn (PAYE) is the UK system used by employers to deduct Income Tax, Class 1 National Insurance Contributions (NICs), student loan repayments, and workplace pension contributions directly from employee wages before paying net take-home salary.
Understanding your monthly PAYE payslip deductions ensures full visibility over your household spendable cash.
⚙️ Statutory PAYE Payroll Rules for 2026/27
1. Tax-Free Personal Allowance (Tax Code 1257L)
- Standard Tax-Free Threshold: £12,570 per year (£1,047.50/month; £241.73/week).
- Tax Code 1257L: Indicates an employee receives the full statutory £12,570 tax-free Personal Allowance.
2. Income Tax Band Deductions (England, Wales, NI)
- Basic Rate Band (£12,571 to £50,270): 20% Income Tax.
- Higher Rate Band (£50,271 to £125,140): 40% Income Tax.
- Additional Rate Band (Above £125,140): 45% Income Tax.
3. Employee Class 1 National Insurance (NI) Rates
- Earnings up to £12,570: 0% NI.
- Earnings between £12,571 and £50,270: 8% NI.
- Earnings above £50,270: 2% NI.
📊 Practical PAYE Payroll Worked Examples
Below are two worked calculation examples illustrating PAYE monthly take-home pay:
- Gross Annual Salary: **£38,000.00** (£3,166.67/month)
- 5% Employee Pension Contribution: **£1,900.00 / year**
- Income Tax Paid (20%): **£4,706.00 / year**
- Class 1 NI Paid (8%): **£2,034.40 / year**
Calculation: Net annual take-home = £38,000 - £1,900 - £4,706 - £2,034.40 = £29,359.60.
- Gross Annual Salary: **£65,000.00** (£5,416.67/month)
- 5% Employee Pension Contribution: **£3,250.00 / year**
- Income Tax Paid (Basic + Higher Rate): **£11,286.00 / year**
- Class 1 NI Paid (8% & 2%): **£3,310.60 / year**
Calculation: Net annual take-home = £65,000 - £3,250 - £11,286 - £3,310.60 = £47,153.40.
📑 Common Pitfalls & PAYE Warnings
- Emergency Tax Codes (W1/M1 or 0T): If you start a new job without handing your P45 to HR, you may be assigned an emergency tax code. Emergency codes apply tax on a non-cumulative basis, causing temporary over-taxation until HMRC updates your PAYE code.
- K Tax Codes (Benefits in Kind Surcharge): A ‘K’ prefix tax code (e.g. K475) indicates that taxable benefits in kind (such as a company car or private medical insurance) exceed your Personal Allowance, resulting in higher monthly PAYE deductions.
- Cumulative vs Non-Cumulative PAYE Math: PAYE is cumulative by default. If your salary fluctuates month-to-month, PAYE automatically recalculates your tax position across all previous months in the tax year to keep deductions accurate.
❓ Frequently Asked Questions (FAQ)
A P60 is an annual statutory tax summary provided by your employer at the end of each tax year (by 31 May). It shows your total gross salary and exact PAYE Income Tax and National Insurance deducted during the tax year.
RTI is HMRC's electronic payroll submission system. Employers submit employee pay, tax, and National Insurance data online to HMRC on or before every payday.
An 'S' prefix (e.g. S1257L) indicates you are taxed under devolved Scottish Income Tax rates. A 'C' prefix (e.g. C1257L) indicates you are taxed under devolved Welsh Income Tax rates.
You can view, check, and update your PAYE tax code online 24/7 through your GOV.UK Personal Tax Account or via the official HMRC Smartphone App.