How this calculator works
This browser-based tool helps you make a first, transparent estimate from the values you provide. Enter the figures in the fields and the result updates as you edit them. JavaScript performs the calculation on your device; the calculator does not send your salary, property, vehicle or account details to a calculation server. Keep supporting documents secure and only enter sensitive figures on a device you trust.
Formula, assumptions and limits
Estimate UK VED using 2026–27 standard and first-year rates. Rates and eligibility can depend on tax year, residence, transaction details and individual circumstances. UK income tax, National Insurance and SDLT follow separate rules; SDLT applies in England and Northern Ireland, while Wales and Scotland have different property-tax systems. Check current official guidance before acting.
Do not rely on a rounded estimate for a tax return, payment or legal decision. Compare it with official notices, current rate tables and professional advice where needed. Real-world outcomes may include additional reliefs, fees, rate changes or personal circumstances that a simple calculator cannot represent. Your entries are not saved and are discarded when you close the tab.
Use the output as a planning aid: verify each input, read the assumptions and adjust the figures when your circumstances differ. If an important detail is uncertain, contact the relevant authority or a qualified tax, legal or financial professional.
Before acting, check your inputs, tax year and jurisdiction. Note the assumptions used, compare the result with records and official guidance, and recalculate when rules or your circumstances change.
Vehicle Excise Duty depends on registration era
UK Vehicle Excise Duty is not determined by CO₂ alone. The applicable schedule can depend on the vehicle’s first registration date, fuel and emissions, and whether you need a first-year rate or the standard annual rate. This estimate uses the selected rate period and broad vehicle details to show an indicative amount. The premium-car supplement can apply to qualifying vehicles above the relevant list-price threshold during specified years; the price entered is not necessarily the value of a used car today. Use the V5C registration certificate to confirm the details and make sure the emissions figure is in grams per kilometre.
The rate structure has changed several times, and cars registered in different periods can follow different rules. Electric vehicles and alternative fuels may have specific rates; exemptions and reductions can apply to disabled drivers, historic vehicles or vehicles used only in certain ways. First-year tax may be paid with a new registration, while subsequent tax is generally renewed annually or by direct debit. The calculator does not verify a registration number or retrieve the official vehicle record. Check the current GOV.UK rate table before buying or taxing a vehicle, and include insurance, fuel, maintenance and depreciation when comparing ownership costs.
Frequently asked questions
Are my inputs stored?
No. Calculations run locally in your browser and the values are not sent to our server.
Is the result official advice?
No. It is an estimate based on the assumptions shown. Check current official guidance or consult a qualified professional for decisions.
How is the estimate calculated?
The browser applies the formula and assumptions explained on this page to the values you enter.