PayBreakdown

Compare job offers calculator

Compare UK job offers by salary, take-home pay, pension, student loan, tax region, and monthly household impact.

How compare offers is worked out

Two offers are rarely comparable on gross salary alone. A larger pension contribution lowers what you take home now without being lost, a different employer contribution changes what actually goes into the pension, and moving between Scotland and the rest of the UK charges the same salary against a different set of Income Tax bands. Comparing the net figures puts the offers on the same footing.

Compare two salaries

Two gross figures, side by side, after Income Tax and National Insurance.

Extra take-home a year£3,600
Gross
£40,000
Income Tax
£5,486
National Insurance
£2,194
Take-home a month
£2,693

Gross is up £5,000, but take-home rises by £3,600 — £300 a month.

2026/27 rates, England, Wales and Northern Ireland, no student loan. Open the full calculator to change region, student loan or pension method.

Checks worth making on compare offers

Assumptions used here

Assumptions used here
Tax/source year2026/27
RegionEngland/Wales/Northern Ireland
Tax code basis1257L where the page uses PAYE defaults
Pension basisNo pension deduction unless this example says otherwise
Student loan basisNo student loan unless selected in this example

Where pay can go

Where pay can go
Gross payEmployment pay before PAYE deductions and pension or loan settings.
Income TaxTax estimated from the selected tax-year, region, tax code and taxable-pay assumptions.
National InsuranceEmployee NI is calculated separately from Income Tax and may not follow the same bands.
Pension and loansPension method and student-loan plan can change take-home pay and payslip comparisons.

What changes this result

What changes this result
Pension contributionChanging the rate or method can change taxable income, National Insurance and take-home pay.
Tax code and regionScottish Income Tax, Welsh codes, emergency tax or a non-standard tax code can move the result.
Student loan planA different plan can change deductions because each plan uses its own threshold and repayment rate.
Bonus, overtime or second jobExtra pay and payroll timing can make a real payslip differ from the smooth annual estimate.

Why a payslip can differ

Why a payslip can differ
Tax codeHMRC tax-code changes, K codes, BR/D codes, or emergency markers can change PAYE deductions.
Cumulative basisWeek 1, Month 1 or non-cumulative payroll can differ from a smooth annual calculator estimate.
Pension methodRelief at source, net pay and salary sacrifice can affect taxable pay and take-home pay differently.
Payroll timingBonus, overtime, arrears, refunds, cut-off dates and corrections can all move a single payslip.

Source and methodology context

Source and methodology context
What is not decided herePayBreakdown 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 compare offers estimate assumes

The figures on this page are worked from compare offers, using the values below. Open the calculator if your example salary differs.

Example salary£35,000 annual gross

What would change this figure

This estimate is worked out on £35,000 annual gross. Change any of those and the take-home figure moves; pension method and student loan plan usually move it most. A payslip can differ from any calculator because payroll works pay period by pay period, so a tax-code change, a bonus, arrears or a refund can land in one month and not the next. See how each deduction is worked out.

Official sources

Income Tax rates and Personal AllowancesScottish Income Tax rates and bandsNational Insurance rates and categoriesStudent loan repayment thresholdsPension tax relief

Frequently asked questions

What does the compare job offers calculator do?

It starts from the question on this page, shows the useful salary assumptions, and opens PayBreakdown's calculator so gross pay, take-home pay, tax, National Insurance, pension, student loan, region, and tax-code settings can be adjusted.

Can I change the assumptions?

Yes. Open the calculator from this page to change salary, hours, pension, student loan, tax year, region, tax code, bonus, and other pay settings.

Last updated 2026-08-27. Checked by Sean Elsmore. Rates last checked against GOV.UK on 2026-08-07. Estimates are for planning and should be checked against official records where the decision matters.