UK VAT calculator: add or remove UK VAT at 20%, 5%, or 0%, convert net to gross or gross to net, and check VAT amounts for invoices, quotes, and pricing.
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This UK VAT calculator is built for quick net to gross, gross to net, and VAT amount calculations using common UK VAT rates such as 20%, 5%, and 0%.
- Calculate VAT on a price, add VAT, or remove VAT from a gross amount.
- Use Basic mode for one-line checks and Advanced mode for invoices with multiple items.
- Rate breakdowns, rounding options, and CSV export help with invoices, quotes, bookkeeping, and pricing checks.
For normal domestic UK pricing, B2C is usually the right choice. Use the B2B reverse charge mode only when that VAT treatment really applies to the transaction.
Tip: This UK-specific page is the most direct entry point when you need fast VAT calculations for British pricing, invoices, or reverse calculations.
VAT Formula
$$\begin{aligned}
\mathrm{Gross} &= \mathrm{Net}\times(1+r) \\
\mathrm{Net} &= \frac{\mathrm{Gross}}{1+r} \\
\mathrm{VAT} &= \mathrm{Net}\times r = \mathrm{Gross}-\mathrm{Net}
\end{aligned}$$
UK VAT Calculator FAQ
What VAT rates are commonly used in the UK?
The UK commonly uses a 20% standard rate, a 5% reduced rate, and a 0% rate for some categories. The correct VAT treatment depends on the product or service and the transaction type.
How do I add UK VAT to a net price?
Multiply the net amount by 1.20 for 20% VAT or by 1.05 for 5% VAT. The calculator also shows the VAT amount separately, which is useful for invoices and quotes.
How do I remove VAT from a gross amount?
Divide the gross amount by 1.20 to remove 20% VAT or by 1.05 to remove 5% VAT. The VAT amount is the difference between gross and net, and the calculator works this out automatically.
When should I use reverse charge mode?
Reverse charge is not for normal domestic retail pricing. Use it only when the transaction qualifies for reverse-charge treatment and VAT should not be charged in the usual way on the invoice.
Who is this UK VAT calculator for?
It is useful for freelancers, small businesses, ecommerce pricing, bookkeeping checks, and anyone who needs to add VAT, remove VAT, or verify a VAT-inclusive price quickly.
