Pay, Payslips & Employee Benefits UK

How to Read Your Payslip UK — Understanding Every Deduction

Confused by your payslip? Learn what every line means — from gross pay to National Insurance, pension, student loans, and take-home pay explained simply.

Salary and income data is based on ONS and other official UK statistical sources. Figures are averages and may not reflect your individual circumstances.

Your payslip contains vital information about your earnings and deductions, but it can look like a foreign language. Here’s a complete breakdown of every section so you know exactly where your money goes.

Anatomy of a Payslip

Sample Payslip Layout

SectionWhat It Shows
Top SectionYour details, employer, pay period, payment date
EarningsGross pay, overtime, bonuses, commission
DeductionsTax, NI, pension, student loan
Year to DateCumulative figures for the tax year
Net PayYour take-home pay

Understanding the Header

FieldMeaning
Employee nameYour legal name for tax purposes
Employee numberYour unique reference with this employer
NI numberYour National Insurance number (format: AB123456C)
Tax codeDetermines how much tax-free pay you get (e.g., 1257L)
Pay periodWeek number or month (e.g., “Month 6” = September)
Payment dateWhen the money reaches your account

Earnings Section Explained

Basic Earnings

TermMeaning
Basic payYour contracted salary for this period
Gross payTotal earnings before any deductions
Hourly rateYour pay per hour (if applicable)
Hours workedNumber of hours this period

Additional Earnings

TermMeaning
OvertimePay for hours beyond your contract (often at 1.5x)
BonusOne-off or performance-related payments
CommissionSales-related payments
Shift allowanceExtra pay for unsociable hours
Holiday payPayment for holiday taken this period
Sick paySSP or company sick pay
Maternity/Paternity paySMP/SPP or enhanced pay
Back payCorrection for previous underpayment
ExpensesReimbursed costs (usually not taxed)

Benefits in Kind

TermMeaning
Company carTaxable value of car benefit
Private medicalTaxable value of health insurance
Gym membershipTaxable if paid by employer

Deductions Section Explained

Income Tax

FieldMeaning
TaxIncome Tax deducted
Tax codeDetermines your tax-free amount
Tax periodWeek or month number in tax year

How Tax Is Calculated (2025/26)

Income BandTax Rate
£0 - £12,5700% (Personal Allowance)
£12,571 - £50,27020% (Basic rate)
£50,271 - £125,14040% (Higher rate)
Over £125,14045% (Additional rate)

National Insurance

FieldMeaning
NINational Insurance Contributions
NI CategoryThe letter code (usually A)
NI NumberYour unique reference (e.g., AB123456C)

NI Category Letters

LetterWho It Applies To
AStandard — most employees
BMarried women/widows on reduced rate (historical)
COver State Pension age
HApprentice under 25
JDeferment (have other job paying NI)
MUnder 21
ZUnder 21, above Upper Earnings Limit

NI Rates (2025/26)

EarningsEmployee RateEmployer Rate
Below £12,570/year0%0%
£12,570 - £50,2708%13.8%
Above £50,2702%13.8%

Pension Contributions

FieldMeaning
PensionYour contribution to workplace pension
Employee contributionAmount you pay (usually 5%)
Employer contributionAmount employer pays (minimum 3%)
AVCAdditional Voluntary Contributions

Pension Contribution Types

TypeHow It Works
Relief at sourcePension provider claims tax relief
Salary sacrificeContribution taken before tax (more efficient)
Net pay arrangementContribution from gross pay (no further claims needed)

Student Loan

FieldMeaning
Student loanRepayment deducted at source
SL1, SL2, PGLLoan type being repaid

Student Loan Thresholds (2025/26)

PlanThresholdRepayment Rate
Plan 1 (pre-2012)£24,990/year9% above threshold
Plan 2 (post-2012)£27,295/year9% above threshold
Plan 4 (Scotland)£31,395/year9% above threshold
Plan 5 (from 2023)£25,000/year9% above threshold
Postgraduate£21,000/year6% above threshold

Other Deductions

FieldMeaning
Childcare vouchersPre-tax childcare scheme (legacy)
Cycle to workSalary sacrifice for bicycle
Give As You EarnCharitable donations from salary
SAYE/SharesaveShare scheme contributions
Union duesTrade union membership
Court orderEarnings attachment for debts
CSA/CMSChild maintenance deduction

Understanding Your Tax Code

Standard Code: 1257L

ComponentMeaning
1257Your Personal Allowance is £12,570 (add a zero)
LStandard tax-free amount applies

Common Tax Codes

CodeMeaning
1257LStandard — £12,570 tax-free
BRAll income taxed at Basic Rate (no tax-free allowance)
D0All income taxed at 40% (second job)
D1All income taxed at 45%
NTNo tax (diplomatic staff, etc.)
0TNo Personal Allowance
K codesYou owe more tax than your allowance covers
MReceiving Marriage Allowance transfer
NTransferring Marriage Allowance

Scottish Tax Codes

CodeMeaning
S1257LScottish taxpayer with standard allowance
S codesSubject to Scottish Income Tax rates

Emergency Tax Codes

IndicatorMeaning
W1Weekly emergency tax (non-cumulative)
M1Monthly emergency tax (non-cumulative)
XUsed alongside other codes for emergency

If you see W1 or M1, your tax is calculated only on this period’s earnings. Contact HMRC or give your employer your P45 to switch to cumulative.

Year-to-Date Section

FieldMeaning
Gross pay YTDTotal earnings this tax year
Tax paid YTDTotal tax deducted this tax year
NI paid YTDTotal NI deducted this tax year
Pension YTDTotal pension contributions this tax year
Taxable pay YTDGross pay minus pension (before tax)

This section helps you verify your tax is correct by tracking cumulative amounts since April 6th.

Common Payslip Queries

“Why has my tax suddenly increased?”

Possible ReasonExplanation
Bonus paymentHigher earnings = higher tax bracket
Tax code changeCheck if your code has changed
Caught up underpaymentHMRC adjusting for earlier months
Lost Personal AllowanceIncome over £100,000 loses allowance
Benefit addedCompany car or other benefit taxed

“Why is my first payslip higher/lower than expected?”

ReasonExplanation
Part monthDidn’t work full period
Emergency taxEmployer waiting for P45/tax code
Cumulative calculationCatching up on unused allowance

“My payslip shows a different pension contribution than expected”

CheckDetails
Contribution basisSome pensions calculated on qualifying earnings, not full salary
Salary sacrificeShows as lower gross pay, not pension deduction
Tax relief methodRelief at source adds to contribution value

Payslip Calculations: Worked Example

Example: £30,000 Salary (Monthly)

ItemMonthly AmountCalculation
Gross pay£2,500.00£30,000 ÷ 12
Tax-free portion£1,047.50£12,570 ÷ 12
Taxable pay£1,452.50£2,500 - £1,047.50
Income Tax (20%)-£290.50£1,452.50 × 20%
NI threshold£1,047.50£12,570 ÷ 12
NI-able earnings£1,452.50£2,500 - £1,047.50
National Insurance (8%)-£116.20£1,452.50 × 8%
Pension (5%)-£125.00£2,500 × 5%
Net pay£1,968.30£2,500 - £290.50 - £116.20 - £125.00

Annual Breakdown: £30,000 Salary

ItemAnnual Amount
Gross salary£30,000
Income Tax£3,486
National Insurance£1,394
Pension (5%)£1,500
Take-home pay£23,620

Checking Your Payslip Is Correct

Monthly Checklist

CheckWhat to Compare
Gross payMatches your contract/annual salary ÷ 12
Tax codeMatches your HMRC Personal Tax Account
Tax deductedRoughly correct for your income
NI deductedRoughly 8% of pay above £1,047/month
PensionMatches your scheme rate
Student loanOnly if you have one, correct plan

Red Flags

IssueAction
Tax code wrongContact HMRC via Personal Tax Account
Payslip not providedEmployer legally must give you one
Deductions unexplainedAsk HR/payroll for breakdown
Hours wrongReport to manager immediately
Paid incorrect amountRaise with payroll urgently

Your Rights

RightDetails
Right to a payslipAll employees must receive one by law
Itemised deductionsAll fixed deductions must be explained
Pay on timeMust be paid on agreed date
Query discrepanciesEmployer must investigate concerns
Keep recordsKeep payslips for tax/benefit purposes

Sources

  1. MoneyHelper — Everyday money