Tax Calculators
4 live
VAT, income tax and stamp duty calculators using HMRC and GOV.UK rates.
Rates from HMRC and GOV.UK
Built on the United Kingdom's own rules and rates
United Kingdom Calculators and Tools
Calculators built for the UK: VAT at 20%, 5% and 0%, PAYE income tax and National Insurance, and stamp duty. Every tool links to GOV.UK and shows when it was checked.
- tools live
- 11
- categories
- 3
- more on the way
- 0
- rates last checked
- 29 Oct
Featured United Kingdom tool
VAT Calculator
Add VAT to a net price or take it out of a gross total in one step. Most goods and services in the UK carry the 20% standard rate, some carry the 5% reduced rate and others are zero-rated, and you can also enter any other rate. The calculator shows the net amount, the VAT and the gross amount side by side.
Tax Calculators Checked 29 Oct 2026 Runs in your browser
Open the VAT Calculator
Worked example
£120 including VAT at 20%. The VAT is £120 × 20 ÷ 120 = £120 ÷ 6 = £20.00, so the net price is £100.00. Adding VAT the other way, £100 × 20% = £20 and the gross price is £120.00. At the 5% reduced rate, £100 net becomes £105.00 gross.
Source
GOV.UK: VAT rates
Every United Kingdom tool
Tax, bills, land, exams and more
Live tools open straight away. Tools marked Coming soon are being built and checked against the official source first.
Pay and Salary
6 live
Take-home pay after tax and National Insurance, and hourly to salary in pounds.
- Take-Home Pay Calculator
- Hourly to Salary Calculator
- Statutory Sick Pay Calculator
- Maternity Pay Calculator
- Redundancy Pay Calculator
- Holiday Entitlement Calculator
Rates from HMRC PAYE and National Insurance rules
Home and Auto
1 live
Mortgage repayment and car finance calculators in pounds sterling.
Rates from standard lender repayment formulas
Why trust the numbers
Checked against the official source
A calculator is only as good as its rates. Every United Kingdom tool shows where its numbers come from and when they were last checked.
Source linked
Each tool links to the law, notice or tariff it uses.
Date shown
The last-checked date sits on every tool page.
Worked example
A step-by-step example lets you check the maths yourself.
Recently checked
Updated when a budget, tariff or price changes| Date | Tool | Source |
|---|---|---|
| VAT Calculator | GOV.UK: VAT rates | |
| Income Tax Calculator | GOV.UK: Income Tax rates and Personal Allowances | |
| Stamp Duty Calculator | GOV.UK: Stamp Duty Land Tax residential rates | |
| Inheritance Tax Calculator | GOV.UK: Inheritance Tax | |
| Take-Home Pay Calculator | GOV.UK: Rates and thresholds for employers 2026 to 2027 |
Works everywhere
Free tools for everything else
FAQ
United Kingdom tools, explained
Missing a calculator you need? Tell us and we will add it to the list.
Where do the rates come from?
Each tool links to the official notification, law or policy it uses, for example HMRC and GOV.UK for VAT, income tax and National Insurance, and shows the date it was last checked.
How often are the rates updated?
Whenever the government or regulator changes them. Most tax changes start on 6 April with the new tax year, and VAT changes are announced in the Budget.
Are these calculators free?
Yes. Every United Kingdom tool is free, needs no account and works on mobile and desktop.
Are my numbers saved?
No. The calculators run in your browser, so the amounts, salary or marks you enter are never sent to us or stored.
Can I rely on the result for official filing?
Use the result as a careful estimate. For a tax return, invoice dispute or application, the official notice or the department always has the final word, which is why every tool links to its source.