How do I check if my deductions are correct?

Review your payslip against HMRC's tax tables for your tax code. You can also check your Personal Tax Account on GOV.UK to verify your tax code and expected deductions.

Can I reduce my tax deductions legally?

Yes, you can reduce deductions through salary sacrifice pension schemes, cycle-to-work schemes, claiming tax relief on work expenses, and ensuring your tax code is correct with HMRC.

What is a tax code and how does it affect deductions?

A UK tax code tells your employer how much tax-free income you are entitled to. An incorrect tax code can mean you overpay or underpay tax, so check your code on your payslip regularly.

Deductions Calculator UK | CalculatorZone

Useful next calculations

Use the Salary After Tax CalculatorContinue with the related tax & salary question this result raises.
Use the Income Tax CalculatorContinue with the related tax & salary question this result raises.

Rates and sources

UK tax rates and thresholds, as published by HMRC. Scotland and Wales have devolved rates for income tax and property transactions.

Source: HMRC — Tax rates. Check the linked guidance and any live quote before acting.

When to use this calculator

Before accepting a pay change, bonus, pension contribution or salary-sacrifice option.
When you want a simple take-home estimate before payroll or filing.
When you are approaching the £100,000 income level and want to see the personal allowance taper.
When you need to convert between hourly, monthly and annual pay.

A worked example

These are the example figures the calculator opens with.

A worked example
Input	Value
Gross Pay (£)	£3,000
Tax Deduction (£)	£500
NI Deduction (£)	£200
Other Deductions (£)	£100

For those figures the calculator returns:

Net Pay: £2,200.00
Gross Pay: £3,000.00
Tax Deduction: £500.00
NI Deduction: £200.00
Other Deductions: £100.00
Total Deductions: £800.00
Deduction: 26.67%

Method & assumptions

This calculator adds the tax, National Insurance and other deduction amounts you enter, then subtracts the total from gross pay. It does not calculate PAYE rates, thresholds, pension contributions or student-loan deductions automatically.

Enter the actual figures from a payslip or a separate estimate. If a payslip deduction looks wrong, check the tax code and deduction details with HMRC or the payroll provider.

Common mistakes

Entering gross income when you really want take-home pay, or vice versa.
Ignoring pension contributions, deductions or local tax rules that change the result.
Comparing monthly and annual figures without standardising them first.
Overlooking National Insurance or student-loan plan differences that apply to you.

What to do next

Check the same scenario with related pay or deduction calculators.
Keep a copy of the assumptions so you can compare the next tax year or pay period.
If you are self-employed, compare this result with the self-employment tax calculator.
Check whether a small pension contribution change moves take-home pay more than you expect.

Questions people ask

The main UK payroll deductions are income tax (PAYE), National Insurance contributions, workplace pension contributions, and any student loan repayments if applicable.