Direct answer
Payslip tax usually means the PAYE Income Tax deducted from your pay, but the final take-home amount is also affected by National Insurance, pension deductions, student loans, salary sacrifice, benefits and payroll timing.
Payslip tax explained
Understand the main tax and deduction lines on a UK payslip, including PAYE Income Tax, National Insurance, pension and student loan deductions.
The short answer
Payslip tax usually means the PAYE Income Tax deducted from your pay, but the final take-home amount is also affected by National Insurance, pension deductions, student loans, salary sacrifice, benefits and payroll timing.
A worked example
On £35,000 a year, a standard 2026/27 tax code and no pension or student loan, the figures work out like this. Open a calculator to put your own numbers in.
Gross salary£35,000
Take-home a year£28,720
Take-home a month£2,393
Take-home a week£552
Related checks
Assumptions used here
| Tax/source year | 2026/27 |
|---|---|
| Region | England/Wales/Northern Ireland |
| Tax code basis | 1257L where the page uses PAYE defaults |
| Pension basis | No pension deduction unless this example says otherwise |
| Student loan basis | No student loan unless selected in this example |
What changes this result
| Calculator setting | The answer is more useful when matched to the same tax year, region, tax code, pension and loan settings used in the calculator. |
|---|---|
| Records to compare | Payslips, HMRC records, student-loan notices and pension scheme documents can explain differences. |
Why a payslip can differ
| Tax code | HMRC tax-code changes, K codes, BR/D codes, or emergency markers can change PAYE deductions. |
|---|---|
| Cumulative basis | Week 1, Month 1 or non-cumulative payroll can differ from a smooth annual calculator estimate. |
| Pension method | Relief at source, net pay and salary sacrifice can affect taxable pay and take-home pay differently. |
| Payroll timing | Bonus, overtime, arrears, refunds, cut-off dates and corrections can all move a single payslip. |
Good next questions
| Open the salary calculator with editable assumptions | calculator next step |
|---|---|
| Review calculation sources and methodology | source context |
Source and methodology context
| What is not decided here | PayBreakdown does not decide payroll correctness, lender approval, benefit entitlement or employer compliance, and does not give regulated financial, mortgage, debt, tax, payroll or legal advice. |
|---|
What the payslip tax explained estimate assumes
The figures on this page use the values below. Open the calculator if your example salary differs.
Example salary£40,000 annual gross
Main payslip deduction lines
The labels vary, but most payslip tax questions are really about how several deduction lines combine.
- PAYE Income Tax: tax charged through payroll after the tax code and taxable pay are applied.
- National Insurance: employee NI charged under UK-wide rules.
- Pension: workplace pension deductions, which can behave differently depending on the pension method.
- Student loan or postgraduate loan: payroll deductions above the selected plan thresholds.
- Other adjustments: benefits, salary sacrifice, arrears, refunds or corrections.
Why the salary calculator may differ
A salary calculator spreads annual assumptions evenly. A payslip is a period-specific payroll result, so timing and payroll settings matter.
- Tax code differs from HMRC record: The payslip tax code may not match the code currently shown in the HMRC service or app. Compare the payslip tax code with the code in the HMRC service or app, then check with payroll if they differ.
- Emergency tax code or non-cumulative basis: W1, M1, X or NONCUM can mean the pay period is being taxed without full cumulative year-to-date information. Check whether the code is temporary after a job change, benefit change or missing P45 details.
- BR or second-job style tax code: A BR code can be used when the Personal Allowance is allocated to another job or pension. Compare all jobs and pensions before assuming the code is unexpected.
- Scottish S-code or region mismatch: An S prefix uses Scottish Income Tax rates, while National Insurance remains UK-wide. Check the selected region and the prefix on the payslip tax code.
- Student loan deduction present or missing: Student-loan deductions depend on payroll notices, plan type and pay-period earnings. Check the plan type and payroll deduction shown on the payslip.
- Pension deduction differs: Net pay, relief at source and salary sacrifice pension methods change taxable pay and take-home pay differently. Check the pension method, contribution basis and whether salary sacrifice is being used.
- Salary sacrifice affects taxable pay: Salary sacrifice can reduce contractual cash pay and taxable pay before tax and National Insurance are estimated. Check payroll treatment, employer scheme rules, statutory pay and minimum-wage implications.
- Bonus or overtime payroll timing: Bonus or overtime can make one payslip look different from an annualised salary estimate. Compare the annual estimate with the actual pay period and year-to-date figures.
- Taxable benefit or tax-code adjustment: Company benefits, taxable state benefits, underpayments or HICBC can affect a tax code. Check the HMRC tax-code breakdown and any benefit or adjustment lines.
- Refund, arrears or pay-period mismatch: Refunds, arrears, different pay periods and year-to-date corrections can make a payslip diverge from a simple estimate. Compare gross pay, taxable pay, tax paid and year-to-date values before drawing conclusions.
What to check on your own payslip
Compare the deduction with the inputs payroll used before deciding the tax line looks wrong.
- Tax code and any W1, M1, X or non-cumulative marker.
- Taxable pay for the period and year to date.
- Whether the payslip includes a bonus, overtime, arrears, holiday pay or correction.
- Whether pension is relief at source, net pay or salary sacrifice.
- Whether student loan or postgraduate loan deductions are also present.
What this answer does not decide
This is educational guidance for understanding how UK pay and tax work. It does not decide payroll correctness, HMRC treatment, lender approval, benefit entitlement or employment rights, and it is not regulated financial advice. Where a figure matters, check it against your payslip, your HMRC account, or the official guidance linked on this page.
Official sources
GOV.UK: how Income Tax is paidGOV.UK: tax codesGOV.UK: National InsuranceGOV.UK: payslipsGOV.UK: PAYE forms P45, P60 and P11DFrequently asked questions
Why is my payslip tax higher than expected?
Common reasons include a changed tax code, emergency basis, bonus or overtime timing, taxable benefits, pension method, arrears or payroll corrections.
Can PayBreakdown prove my payslip is wrong?
No. PayBreakdown can explain common reasons and estimate scenarios, but it does not prove payroll, HMRC or employer error.
Last updated 2026-08-19. Estimates are for planning and should be checked against official records where the decision matters.