How to Read Your UK Payslip: Every Deduction Explained for 2025/26

Most people check the bottom line of their payslip, confirm the right amount has landed in their bank account, and then file it away without reading much else. That is completely understandable because payslips can look bewildering, full of abbreviations and figures that are difficult to reconcile with the salary you agreed when you took the job. But your payslip is actually one of the most important financial documents you receive each month. Knowing how to read it properly means you can catch errors before they compound, understand your real tax position, and make informed decisions about pension contributions and other salary adjustments.

This guide walks through every section of a typical UK payslip for the 2025/26 tax year, explaining what each figure means in plain language without jargon. If you want to quickly verify that your take-home pay looks right, our UK salary calculator lets you check estimated net pay at any salary level.

Gross pay: where everything starts

Gross pay is your total earnings before any deductions are applied. For salaried employees it is typically your annual salary divided by twelve. If you receive overtime, bonuses, commission, car allowances, or shift premiums, these are usually added to your basic pay to give the total gross figure for that period. Some employers show basic pay and additional payments as separate line items before arriving at a total gross pay figure.

Gross pay matters beyond your payslip. Mortgage lenders base affordability on gross annual salary rather than net income, which is why someone on a £50,000 salary applies for a mortgage at £50,000 even though their take home is considerably less. If you are thinking about buying property and want to understand the relationship between your gross salary and borrowing power, our mortgage affordability calculator provides a detailed breakdown based on current lender criteria.

Gross pay is also the starting point for calculating statutory payments such as redundancy pay, maternity pay, and sick pay, all of which use your average weekly earnings as the reference figure. Keeping accurate payslips means you can verify any statutory payment calculations if needed.

Your tax code and what it means

The tax code on your payslip is one of the most important but least understood pieces of information your employer holds about you. It tells your employer how much of your income is free from income tax before deductions begin. The standard code for the 2025/26 tax year is 1257L, which gives you the full personal allowance of £12,570. The numbers in the code represent the allowance divided by ten, so 1257 means £12,570.

Wrong tax codes are surprisingly common. They occur when HMRC has outdated information about your income, when you start a new job without a P45, when your benefits in kind change, or when you earn above £100,000 and your personal allowance needs to be reduced. If your code ends in W1 or M1 it means you are on emergency tax and likely overpaying. You can check your tax code by logging into your HMRC personal tax account online and requesting a correction, which HMRC then sends to your employer.

Income tax: how PAYE actually works

PAYE stands for Pay As You Earn. It is the system your employer uses to calculate and deduct income tax each pay period before you receive your salary. The amount deducted each month is not simply one twelfth of your annual tax bill calculated independently. Instead, your employer tracks your cumulative earnings and tax paid since the start of the tax year on April 6th and recalculates each month to ensure you are on track to pay exactly the right total by April 5th.

This cumulative approach means that if you got a pay rise partway through the year, your tax deductions will increase to account for the higher projected annual income. Conversely, if you had a month of unpaid leave or received a large payment in one month, the cumulative calculation adjusts accordingly. The month-by-month income tax figure on your payslip therefore reflects your year-to-date position, not just what you earned this month in isolation.

Scotland operates different income tax bands with five rates rather than three. Scottish taxpayers with the same gross salary as a counterpart in England generally pay more income tax at earnings above around £28,000. If you live in Scotland your payslip should show an S prefix on your tax code such as S1257L, confirming that Scottish rates are being applied.

National Insurance contributions explained

National Insurance or NI appears as a separate deduction from income tax on your payslip. The two are calculated independently, and combining them gives you the true cost of earning in the UK tax system. For 2025/26 employees pay NI at 8% on earnings between £12,570 and £50,270 per year, and 2% on earnings above that threshold. There is no NI on earnings below £12,570.

Unlike income tax, NI is calculated on a period-by-period basis rather than cumulatively. This means if you earn a large bonus in one month, you pay NI on that bonus at the rate applicable to that earnings level in isolation rather than spread across the year. This can occasionally result in higher NI deductions in months with bonus payments even if your annual earnings are comfortably in the basic rate band.

Your NI contributions build your entitlement to the state pension and certain benefits. You need 35 qualifying years of NI contributions to receive the full new state pension. Checking your NI record through your personal HMRC account is worthwhile if you have had gaps in employment or self-employment periods, as voluntary contributions can be made to fill gaps at relatively low cost.

Pension contributions on your payslip

If you are enrolled in your employer's workplace pension scheme, your contribution appears as a deduction on the payslip. Auto-enrolment rules require employees to contribute at least 5% of qualifying earnings and employers at least 3%, though many schemes are more generous. Qualifying earnings are those between £6,240 and £50,270 per year, not your total gross pay, so the qualifying earnings figure used in pension calculations may differ from your actual gross pay.

How pension contributions are structured makes a significant difference to the tax efficiency. Salary sacrifice pension schemes reduce your gross pay before income tax and NI are calculated, meaning you save both taxes on your contribution. If you contribute £300 per month via salary sacrifice, your gross pay is reduced by £300 and you pay tax and NI on that lower amount. For a basic rate taxpayer this means the effective cost of a £300 contribution is around £216 after tax and NI savings.

If your pension is structured as a net pay arrangement rather than salary sacrifice, the deduction comes from your post-tax pay and basic rate tax relief is claimed by your pension provider. Higher rate taxpayers in this situation need to claim the additional 20% relief through a self-assessment tax return, as the pension provider only reclaims basic rate automatically. Many people miss this and overpay tax for years.

Student loan repayments

Student loan repayments appear as a separate line item if HMRC has told your employer to collect them. The repayment is calculated at 9% of earnings above the plan-specific threshold. Plan 1 borrowers repay above £24,990 per year. Plan 2 borrowers repay above £27,295. Plan 4 applies in Scotland above £31,395. Postgraduate loan repayments are 6% above £21,000, and these run simultaneously if you have both an undergraduate and postgraduate loan.

The repayment on your payslip is based on your monthly earnings extrapolated to an annual figure. In a month where you receive a bonus, your student loan repayment will be higher. In a month where you are part-time or take unpaid leave, it will be lower. Repayments stop automatically once your loan balance reaches zero, though you need to notify HMRC with a loan closure confirmation from the Student Loans Company to avoid over-deductions.

Other deductions and what they mean

Beyond income tax, NI, pension and student loans, some payslips show additional deductions. These can include childcare vouchers under legacy schemes still in operation, cycle to work scheme loan repayments, season ticket loan repayments, charitable giving through payroll giving, or attachment of earnings orders. Each should be itemised separately and clearly labelled. You are legally entitled to a payslip showing a breakdown of all deductions. If any line is unclear, your HR or payroll team is obliged to explain it.

Dividend payments to company directors do not appear on a payslip at all since they are not PAYE payments. If you run a limited company and receive a combination of salary and dividends, the payslip only covers the salary element. Our dividend tax calculator shows how the dividend portion is taxed separately under 2025/26 dividend tax rates.

How to spot errors and what to do

Payroll errors occur more often than people realise. Common problems include the wrong tax code being applied after changing jobs, NI contributions continuing at the wrong category after a status change, pension deductions being taken at the wrong rate, or emergency tax being applied for more months than necessary after a new job starts. The best way to spot these is to compare your payslip against the previous one each month, flag any unexplained changes, and check your year-to-date income tax figure against what you would expect to have paid cumulatively.

If you believe your tax code is wrong, log into your HMRC personal tax account and check the information held about you. You can request a code change online. For payroll errors relating to pension or other deductions, contact your HR or payroll department directly. Overpaid income tax in the current tax year can sometimes be reclaimed immediately if HMRC agrees a correction, rather than waiting for the end of year reconciliation. Keeping all your payslips is good practice and means you have the evidence needed to dispute any calculation if it comes to it. For a quick sense-check of your expected net pay, our salary calculator estimates take-home pay at any income level using current 2025/26 rates.