UK VAT Calculator: calculate VAT online for the United Kingdom. Convert net to gross, gross to net, and work with UK VAT rates such as 20%, 5%, and 0%.
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This UK VAT calculator is tailored to the United Kingdom and starts with the common UK VAT rates of 20%, 5%, and 0%.
- Calculate net to gross, gross to net, or the VAT amount directly.
- Use Basic mode for quick checks and Advanced mode for invoices with multiple lines.
- Rate breakdowns, rounding options, and CSV export help with quotes, invoices, and internal checks.
For normal domestic UK pricing, B2C is usually the right choice. Use the B2B reverse charge mode only when that VAT treatment actually applies.
Tip: This is the UK-specific version of the general VAT calculator, so it is the most direct entry point for calculations based on UK VAT rates.
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 apply in the UK?
The UK commonly uses a standard VAT rate of 20%, a reduced rate of 5%, and a zero rate for some categories. The correct rate depends on the goods or services involved.
How do I calculate gross from net in the UK?
At 20%, gross = net x 1.20. At 5%, gross = net x 1.05. The calculator also shows the VAT amount separately.
How do I remove UK VAT from a gross amount?
Divide the gross amount by 1.20 or 1.05 to get the net amount where those rates apply. VAT is the difference between gross and net. The calculator does this automatically.
When should I use B2B reverse charge mode?
Reverse charge is not for normal domestic sales. Use it only when the transaction qualifies for reverse-charge treatment and VAT should not be charged in the usual way.
