Free Tax Tools
Calculators and resources to help you estimate tax liabilities and understand your obligations. These tools cover income tax, National Insurance, VAT and other UK taxes.
HMRC Red Flag Checker
Find out which areas of your finances HMRC is most likely to query, what you should be declaring, and roughly what you may owe.
Income Tax Calculator
Enter your salary and get a clear breakdown of your income tax, National Insurance, and take-home pay for the 2025/26 tax year. See exactly where your money goes.
Self Assessment Helper
Confused by self assessment? Tell us about your income and circumstances and get a clear guide to what you need to declare, what you can claim, and the key deadlines.
Tax Code Explainer
Not sure what your tax code means? Enter it here and get a plain English explanation of what it means, whether it is correct, and what to do if it is wrong.
IR35 Status Checker
Not sure if your contract falls inside or outside IR35? Answer questions about your working arrangement and get a clear assessment of your likely status and what it means for your tax.
Inheritance Tax Checker
Worried about inheritance tax on your estate? Answer a few questions and find out if your estate is likely to be liable, how much might be due, and how to reduce it.
Stamp Duty Calculator
Buying a property? Enter the purchase price and get an instant breakdown of the stamp duty you will pay, including rates for first-time buyers and additional properties.