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Online Tax Calculators

You can work out your tax, by using some simple calculators here at your fingertips.

Income Tax

HMRC tax checker 

Check you’re paying the right amount of Income Tax

HMRC tax calculator 

Estimate how much Income Tax and National Insurance you’ll need to pay this year


National Insurance

National Insurance refund

Apply for a refund on your National Insurance contributions (NIC)

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

PAYE/NIC current year reference checker

PAYE/NIC current year reference checker

Class 1A NIC reference checker

Class 1A NIC reference checker


Self Employed

Self-employed ready reckoner

A tool to help you budget for your first Self Assessment tax bill if you’re self-employed


Self Assessment

Lloyd’s calculator

Work out adjustments under section 107 Finance Act 2000 when filing your Self Assessment tax return



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 payroll 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


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 can’t produce these using your payroll software

PAYE/NIC current year reference checker

PAYE/NIC current year reference checker

Employment status

Employment Status Indicator

Check your employment status

Stamp Duty Land Tax (SDLT)

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

Guaranteed Minimum Pension Checker

Use this service to request Guaranteed Minimum Pension calculations

Pension savings annual allowance calculators

Work out if you can top up your annual tax-free pension allowance

Pension schemes annual allowance checking tool

Check if you need to pay a tax charge on your pension savings

Pension schemes lifetime allowance checking tool

Check if you should apply for lifetime allowance protection on your pension

Pension input amount calculator

Pension input amount calculator

Child Benefit and Child Trust Fund

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

Tax credits

Childcare vouchers: better off calculator

Find out how childcare vouchers from your employer affect your tax credits

Tax credits questionnaire

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


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 a EC Sales List (ESL)

VAT CHAPS request

Request to pay VAT by CHAPS

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 and bereavement

Bereavement guide

Find out what to do when dealing with HMRC after someone dies

Inheritance Tax interest calculator

Calculate how much interest is due on a payment of Inheritance Tax

Inheritance Tax reduced rate calculator

See 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 (three month periods) when Inheritance Tax is charged on a trust for certain chargeable events


Tax residence indicator

Check your residence status for Income Tax and Capital Gains Tax

Import and export

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)

UK Integrated Tariff

All 3 volumes of the Tariff, which sets out the duties and measures that affect imports, exports and goods in transit


Tax pool calculator

Work out a discretionary trust’s available tax pool

IR35: working through an intermediary

Deemed payment spreadsheet

Help you calculate a deemed employment payment

Gambling duties

Machine Games Duty registered business

Search business by postcode

Certificates of tax deposit

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





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