Value Added Tax (VAT) is a key part of pricing, invoicing, and business accounting in the UK. The PercentNinja VAT hub brings together a set of tools designed to help you quickly add VAT to a net price, remove VAT from a gross amount, calculate the VAT portion of a transaction, and check totals for accuracy.
These calculators are useful for small businesses, freelancers, online sellers, and anyone who needs to work with VAT in everyday situations. Whether you’re preparing invoices, checking supplier charges, calculating the VAT included in a receipt, or working out prices for customers, the tools below provide fast and reliable results. All calculators work with any currency, but are designed around common UK VAT rates and scenarios.
Each calculator page includes simple formulas, worked examples, and frequently asked questions so you can understand how VAT is calculated as well as get the correct figures. Use the tools below to save time, avoid manual errors, and ensure your VAT calculations are accurate and consistent.
Use this VAT hub to quickly find the right tool for UK VAT calculations — whether you’re adding VAT to a net price, removing VAT from a gross price, or checking the VAT amount on an invoice.
These calculators are built to be fast and practical for everyday use in the UK, but they work with any currency. Choose a tool below, enter your numbers, and copy the result.
If you have a net price and need the total including VAT, use the VAT calculator to add VAT. If you have a gross total and need the net price, use the reverse VAT calculator.
If you’re comparing prices over time or checking a price change, use the percentage increase/decrease tool instead of VAT tools.
No. The standard rate is commonly 20%, but some goods/services may use reduced rates (e.g., 5%) or zero rate. Use the rate that applies to your case.
Adding VAT starts with a net price and adds VAT. Reverse VAT starts with a gross price and calculates the net price before VAT.
Rounding rules can vary depending on whether VAT is calculated per-line item or on the final total.
Yes. VAT is a percentage calculation, so you can enter values in £, $, €, or any unit.
Start with the main VAT calculator for adding or removing VAT. Use Reverse VAT when you have a VAT-inclusive price and want the net and VAT amounts.
Tip: For comparing rate changes in percentages (e.g., VAT 20% to 17.5%), use Percentage Points.