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Payroll Calculator

This employer-focused payroll calculator estimates an employee’s payslip deductions and the full payroll cost of employing them. The headline employer figure adds employer National Insurance and workplace pension contributions to gross pay.

Unlike a take-home pay calculator, it shows both sides of payroll. It uses verified UK rates for 2026/27 and keeps employee deductions separate from costs paid by the employer.

Last reviewed · Tax year 2026/27· Rate set: payroll-2026-27

Payroll calculator inputs

Scottish employment income uses separate Scottish bands.

Category A applies to most employees. Check the category letter used by payroll if unsure.

Workplace pension

5% employee and 3% employer on qualifying earnings.

Advanced tax allowance

This is an estimate, not an exhaustive HMRC tax-code interpreter.

Estimated net pay — annual

£23,931.60

Total employer cost — annual

£34,462.80

Employee payslip

Gross pay£30,000.00
PAYE income tax−£3,486.00
Employee NI−£1,394.40
Employee pension−£1,188.00
Student loan−£0.00
Postgraduate loan−£0.00
Net pay£23,931.60

Employer cost

Gross pay£30,000.00
Employer NI£3,750.00
Employer pension£712.80
Total employment cost£34,462.80

Estimate only. This does not replace payroll software, HMRC Basic PAYE Tools or an RTI payroll submission.

Understanding the payroll result

Estimated net pay is gross pay after PAYE income tax, employee National Insurance, employee pension contributions and any selected student or Postgraduate Loan deductions. Total employer cost is gross pay plus employer National Insurance and the employer pension contribution; employee deductions are not subtracted from that cost.

Use the Annual, Monthly and Weekly controls to compare equivalent presentations. Income tax and student loans are annual estimates divided for display. National Insurance and qualifying earnings use the exact threshold for the pay frequency entered, then convert to annual equivalents.

How the calculation works

Gross pay is annualised for PAYE income tax and loan calculations. The standard Personal Allowance is reduced by £1 for every £2 of income above £100,000 and reaches zero at £125,140. Scottish employment income uses Scotland’s six bands; England, Wales and Northern Ireland use the main UK bands.

  • Net pay = gross pay − PAYE − employee NI − employee pension − student loan − Postgraduate Loan.
  • Total employer cost = gross pay + employer NI + employer pension.
  • National Insurance uses annual, monthly or weekly thresholds matching the entered pay frequency.
  • Pension contributions apply only to qualifying earnings between the lower and upper limits, subject to the £10,000 annual earnings trigger.

Worked examples

£30,000 employee in England

Annual pay of £30,000, NI category A, with no pension or student loan.

  1. PAYE is £3,486 after the £12,570 allowance.
  2. Employee NI is £1,394.40 and employer NI is £3,750.

Estimated annual net pay is £25,119.60 and total employer cost is £33,750.

£60,000 employee with minimum pension

Annual pay of £60,000 in England, NI category A, with minimum auto-enrolment contributions.

  1. Qualifying earnings are capped at £50,270 after the £6,240 lower limit.
  2. Employee pension is 5% and employer pension is 3% of qualifying earnings.

The pension estimate is £2,201.50 from the employee and £1,320.90 from the employer.

Category M employee

An employee under 21 earns £40,000 annually and is correctly assigned NI category M.

  1. Employee NI is charged using the category M employee rates.
  2. Employer NI is nil while pay remains below the £50,270 upper secondary threshold.

The employer cost can be lower than for category A, provided the employee genuinely qualifies for category M.

Assumptions

The result depends on the following. If any of them do not match your situation, treat the figure as indicative only.

  • Pay is regular and the entered amount represents one annual, monthly or weekly pay period.
  • The employee has employment income only and the chosen tax-free allowance represents their relevant allowance for this estimate.
  • Student and Postgraduate Loan deductions are annualised estimates using the published annual thresholds.
  • Pension contributions use qualifying earnings and do not model salary sacrifice, tax relief method or scheme-specific pensionable pay.
  • Employment Allowance is not deducted because eligibility and use depend on the employer’s business-wide National Insurance liability.

What this calculator does not do

  • This is not an exhaustive tax-code interpreter and does not model benefits in kind, bonuses with irregular-period effects, directors’ annual NI methods, statutory payments, attachment orders or prior-period adjustments.
  • Payroll software may apply statutory rounding at individual pay-period stages, so an actual payslip can differ by small amounts.
  • It does not create an HMRC submission and is not a replacement for payroll software, HMRC Basic PAYE Tools or professional advice.

Methodology and 2026/27 rate basis

The calculator uses one centrally versioned payroll-2026-27 dataset, reviewed against the cited GOV.UK publications on 20 September 2026. The calculation engine is pure TypeScript: the interface supplies inputs and verified rates, while the engine returns annual, monthly and weekly breakdowns without a network request.

England, Wales and Northern Ireland use 20%, 40% and 45% employment-income bands after the effective allowance. Scotland uses the published starter, basic, intermediate, higher, advanced and top bands. Employee and employer National Insurance are calculated independently for the selected category.

Sources

Employee deductions

PAYE and employee National Insurance are separate deductions with different thresholds. A selected student loan takes 9% above its plan threshold; a Postgraduate Loan can apply alongside one undergraduate plan at 6% above its own threshold.

Employer National Insurance and Employment Allowance

The normal employer NI rate is 15% above the Secondary Threshold. Qualifying Freeport, Investment Zone, apprentice, under-21 and veteran categories use a higher upper secondary threshold before the 15% charge begins.

  • Employment Allowance is £10,500 for 2026/27, but it is not automatically allocated against one employee here. Check the GOV.UK employer rates source for eligibility and business-level treatment.

Workplace pensions

The auto-enrolment option uses the common statutory minimum split of 5% employee and 3% employer on qualifying earnings from £6,240 to £50,270 a year, where the £10,000 earnings trigger is met. Custom percentages use the same qualifying-earnings basis.

Frequently asked questions

How much does an employee really cost an employer?

For payroll purposes, start with gross pay and add employer National Insurance and the employer pension contribution. Other real employment costs such as benefits, equipment, recruitment, training and insurance are outside this calculator.

How is employer National Insurance calculated?

For most employees it is 15% of pay above the Secondary Threshold. Certain categories for qualifying younger employees, apprentices, veterans, Freeports and Investment Zones have a higher upper secondary threshold before employer NI begins.

What is the employer NI rate in 2026/27?

The normal employer Class 1 National Insurance rate used here is 15%. The threshold at which it starts depends on the employee’s NI category.

Does the calculator include pension contributions?

Yes. Choose no pension, the usual minimum of 5% employee and 3% employer on qualifying earnings, or custom employee and employer percentages on the same qualifying-earnings basis.

Why is my actual payslip different?

Actual payroll can reflect a specific tax code, cumulative prior pay and tax, payroll rounding, irregular bonuses, benefits, statutory payments, salary sacrifice and other adjustments not modelled here.

Does Employment Allowance reduce this employee’s cost?

Not automatically in this result. The £10,500 Employment Allowance is a business-level relief subject to eligibility and the employer’s overall liability, so allocating it to one employee could mislead.

Does Scotland have different income tax rates?

Yes. Scottish taxpayers pay separate rates on employment income, including starter, basic, intermediate, higher, advanced and top bands. National Insurance remains UK-wide.

Please note: Results are estimates for general information only and are not financial, tax or legal advice. Figures depend on the assumptions listed on each page and on your personal circumstances.