Add or remove VAT / sales tax on a price, in seconds
Adds or removes VAT / sales tax on a price, with region presets for the UK, Ireland, Germany, France, Spain, Australia, Canada, New Zealand and US, plus a fully custom mode for anywhere else. Work forward from a net price or backward from a tax-inclusive gross price, and keep a running history of what you've worked out.
Adding tax to a US sales price, and removing tax from a UK VAT-inclusive price - both with the running history rail alongside.
Add tax - net amount, sales tax rate, and the gross breakdown
Remove tax - gross amount broken back down into net and tax
Pick UK, Ireland, Germany, France, Spain, Australia, Canada, New Zealand, US, or a fully custom region, and the calculator sets sensible default rate options for that region - every default stays editable so you can correct it against your own current source.
Add tax mode takes a net price and works out the tax and the gross price the customer pays. Remove tax mode takes a tax-inclusive gross price - a receipt total, say - and extracts the tax to show the underlying net amount.
Each region shows its standard, reduced and zero rates (where it has them) as one-tap chips, so you don't have to remember or look up the exact percentage for a common scenario.
Net and tax as two segments of a single bar, so you can see at a glance how much of the total is the original price and how much is tax, with the exact figures in matching result cards.
Save any calculation with a short label and it sits in a running history alongside the calculator - not a separate tab you have to switch to, and not a heavyweight ledger, just a quick record of recent figures.
Click Load on any history entry to pull its region, rate and amount straight back into the calculator - useful for re-checking or tweaking a figure you worked out earlier.
Not construction-gated - works for any business adding or removing VAT, GST or sales tax on a price, whatever the trade or industry.
A light/dark toggle that remembers your choice, and "Load sample" fills in a realistic calculation so you can see it working before entering your own numbers.
Free ad-supported web VAT calculators (calculator.net's VAT calculator and similar sites) are the obvious alternative for a one-off sum. Here's how a dedicated desktop app compares for anyone doing this more than once.
| Feature | VAT & Sales Tax Calculator | Free web VAT calculator |
|---|---|---|
| Pricing model | £0.79 one-off after trial | Free, ad-supported |
| Works fully offline | ✓ | ✕ |
| Region presets beyond a single flat rate field | ✓ | ✕ |
| Add tax and remove tax, one toggle | ✓ | ✓ |
| Running history of past calculations | ✓ | ✕ |
| No ads, no browser tab to keep finding again | ✓ | ✕ |
| Single-purpose, no unrelated features to learn | ✓ | ✓ |
Comparison based on typical free web VAT calculator sites as of August 2026 - features and ad-loads vary by site, so this is a general comparison rather than a specific product review. Not sponsored by or affiliated with any web calculator site.
VAT & Sales Tax Calculator is a Windows desktop app. It is not yet available on the Microsoft Store - a Store listing is planned, but for now the app is built and ready ahead of submission.
The UK, Ireland, Germany, France, Spain, Australia, Canada, New Zealand and US each have a preset for their typical rate(s), plus a fully custom mode for any other country. Every default stays editable so you can correct it against your own current source.
Yes - switch to Remove tax mode and enter the price the customer actually paid (including tax). The calculator extracts the tax amount and shows the underlying net price, useful for pulling VAT out of a receipt or a VAT-inclusive quote.
Add tax mode: tax = net amount x rate, gross = net + tax. Remove tax mode: net = gross / (1 + rate), tax = gross - net. Figures are rounded to two decimal places using round-half-up.
Save any calculation with a short label and it's added to a running history rail alongside the calculator - useful for keeping a quick record of rates and amounts you've worked out recently, without it turning into a full accounting system.
Everything persists on your device between sessions - nothing is uploaded anywhere. Data doesn't currently sync across multiple devices.
No - it's a calculator to help you work out a figure quickly, not tax or accounting advice. Rates shown are indicative and can go out of date - always check your region's current rate before relying on a figure for a return or invoice.