HMRC tools and calculators

Find and use tools and calculators that will help you work out your tax.

Income Tax

Tool What it does
Estimate your Income Tax for a previous tax year Use this service to estimate how much Income Tax you should have paid for a previous tax year
Estimate your Income Tax for the current year Estimate how much Income Tax and National Insurance you should pay for the current tax year


Tool What it does
Calculate your leave and pay when you have a child Find out if you can get maternity, paternity or shared parental leave – for employees
PAYE tax calculator Check your payroll calculations
National Insurance payroll calculator Check your National Insurance payroll calculations
Basic PAYE tools Tools to help you run your payroll
PAYE CHAPS Request form for PAYE CHAPS transfer
Company car calculator Calculate the company car tax charge based on a car’s taxable value and CO2 rating
Statutory Sick Pay calculator Work out your employee’s Statutory Sick Pay
Maternity and paternity calculator Work out your employee’s maternity or paternity pay and leave
PAYE Desktop Viewer View your employee tax codes and notices
Stop PAYE payment booklet form Stop receiving a PAYE payment booklet
Order P45s and P60s Get P45s and P60s for your employees if you cannot produce these using your payroll software
PAYE/National Insurance contributions current year reference checker Check your PAYE, National Insurance contributions reference for the current year
PAYE/National Insurance contributions previous year reference checker Check your PAYE, National Insurance contributions reference for the previous year
Class 1A National Insurance contributions reference checker Check your Class 1A National Insurance contributions reference

Self employed

Tool What it does
Self-employed ready reckoner Budget for your first Self Assessment tax bill if you’re self-employed

National Insurance

Tool What it does
National Insurance refund Apply for a refund on your National Insurance contributions
Director’s National Insurance contributions calculator Check a company director’s National Insurance contributions
National Insurance contributions calculator Calculate your employee’s National Insurance contributions

Tax credits

Tool What it does
Get a tax credits claim form Find out if you qualify for tax credits
Tax credits calculator Estimate of how much in tax credits you could get in total
Tax credits: working out your childcare costs tool Calculate your childcare costs for claiming tax credits

Self Assessment

Tool What it does
Lloyd’s calculator Work out adjustments under section 107 Finance Act 2000 when filing your Self Assessment tax return

Employment status

Tool What it does
Check employment status for tax Check the employment status of a worker

Stamp Duty Land Tax (SDLT)

Tool What it does
SDLT calculator Work out how much SDLT you need to pay when buying or transferring land or property
SDLT CHAPS request Request to pay SDLT by CHAPS

Capital Gains Tax

Tool What it does
Non-resident Capital Gains Tax Calculate your non-resident Capital Gains Tax
Capital Gains Tax shares calculator Calculate your Capital Gains Tax on the sale of shares
Capital Gains Tax property calculator Calculate your Capital Gains Tax on the sale of property


Tool What it does
Guaranteed Minimum Pension (GMP) checker Request GMP calculations
Pension annual allowance tool Check your pension annual allowance

Child Benefit and Child Trust Fund

Tool What it does
Child Benefit tax calculator Check if you need to pay the High Income Child Benefit Tax Charge
Child Trust Fund locator Work out where your Child Trust Fund is held


Tool What it does
Check what help you could get with childcare costs Find out how much you could get towards approved childcare


Tool What it does
VAT payment deadline calculator Work out the VAT payment deadline for your accounting period
EU VAT number validation Check a VAT number from any EU country to help you complete an EC Sales List
VAT CHAPS request Request to pay VAT by CHAPS

Corporation Tax

Tool What it does
No Corporation Tax due Tell HMRC you have no Corporation Tax due
Corporation Tax via CHAPS (Cumbernauld) Request to pay Corporation Tax by CHAPS to HMRC Cumbernauld
Corporation Tax via CHAPS (Shipley) Request to pay Corporation Tax by CHAPS to HMRC Shipley

Inheritance Tax

Tool What it does
Inheritance Tax checker Get an approximate value of an estate and decide if any Inheritance Tax is likely to be due
Inheritance Tax interest calculator Calculate how much interest is due on a payment of Inheritance Tax
Inheritance Tax residence nil rate band (RNRB) calculator Calculate the RNRB if a home is left to direct descendants
Inheritance Tax reduced rate calculator Check if you qualify to pay a reduced rate of Inheritance Tax
Inheritance Tax: grossing up calculators Work out an estate value when legacies in a will are free of tax and other assets are tax exempt
Inheritance Tax: guaranteed annuity calculator Work out an estimated market value of guaranteed annuity payments when valuing assets of the deceased’s estate
Inheritance Tax: quarters calculator for trusts Work out the number of quarters (3-month periods) when Inheritance Tax is charged on a trust for certain chargeable events

Import and export

Tool What it does
System for the Exchange of Excise Data (SEED) Check whether your SEED Excise ID is valid
UK Trade Tariff tool Classify your goods for import or export using the UK Trade Tariff, based on the EU TARIC (Tariff Integre Communautaire)

IR35: working through an intermediary

Tool What it does
Deemed payment spreadsheet Calculate a deemed employment payment

Gambling duties

Tool What it does
Machine Games Duty registered business Search businesses by postcode

Certificates of tax deposit

Tool What it does
Certificate of Tax Deposit interest calculator Check the level of interest due against a tax deposit you have already made under the Certificate of Tax Deposit scheme
Published 6 April 2010
Last updated 29 July 2022 + show all updates
  1. The 'Trusts' section has been removed as the content is now out of date.

  2. The additional threshold has been renamed residence nil rate band (RNRB).

  3. Removed the bereavement guide link as it has been replaced.

  4. The Capital Gains Tax shares and property calculators have been added to the list of tools.

  5. The childcare calculator has been added to the list of tools.

  6. New Inheritance Tax additional threshold calculator added

  7. New calculator added to help you check your pension annual allowance.

  8. Replaced Employment Status Indicator with 'Check your employment status for tax' service.

  9. Non-resident Capital Gains Tax calculator added to the page.

  10. A new Guaranteed Minimum Pension Checker service is available to request Guaranteed Minimum Pension calculations.

  11. IR35 2016 calculator now available.

  12. First published.