Understanding Your Payslip: Every Line Explained

Receiving your payslip should be straightforward, but with various codes, deductions, and jargon, it often looks more like a complex puzzle. Whether you’re a new employee or have been working years, understanding exactly where your money goes is crucial for your financial health.

Gross Pay vs. Net Pay

The first thing to look at is the difference between your gross and net pay:

  • Gross Pay: This is the total amount you’ve earned before any deductions. It includes your basic salary, bonuses, overtime, and any taxable benefits.
  • Net Pay: This is your ‘take-home’ pay – the amount that actually lands in your bank account after all taxes and deductions.

The All-Important Tax Code

Your tax code is arguably the most important piece of information on your payslip. For the 2026/27 tax year, the standard tax code for most people with one job is 1257L.

What does this mean? The number ‘1257’ relates to your tax-free Personal Allowance. You add a zero to the end, which gives you £12,570. This is the amount you can earn in the year before you start paying Income Tax. The letter ‘L’ means you’re entitled to the standard tax-free Personal Allowance. You can estimate your take-home pay using our Income Tax Calculator.

Income Tax and National Insurance

The two main deductions are Income Tax and National Insurance (NI).

  • Income Tax: Deducted under the Pay As You Earn (PAYE) system. You pay 20% on earnings between £12,571 and £50,270, 40% up to £125,140, and 45% above that. Compare these bands in detail with our Tax Rates 2026/27 Reference Sheet.
  • National Insurance (Employee): For 2026/27, the main rate for employees is 8% on earnings between the primary threshold and upper earnings limit, and 2% on earnings above that. Check your NI contributions using our National Insurance Calculator.

Frequently Asked Questions (FAQ)

Q: What does tax code 1257L mean?
A: Tax code 1257L indicates that you are entitled to the standard UK Personal Allowance of £12,570, meaning you earn this amount tax-free before income tax applies.

Q: Why is my tax code different this month?
A: Your tax code can change if your employer receives updated notifications from HMRC due to taxable benefits (like a company car), unpaid tax from previous years, or switching jobs.

Q: What is the difference between gross and net pay?
A: Gross pay is your total earnings before any deductions, while net pay is your actual “take-home” pay that is paid into your bank account after tax, NI, and pension deductions.