Remove UK VAT from a VAT-inclusive receipt, invoice, or online price.
Reverse Tax Calculator UK
Use this UK reverse tax calculator when a shelf price, invoice, or checkout total already includes VAT and you need the net price before VAT.
Rates are presets for quick estimates. Local, state, province, product, and invoice rules can vary, so replace the rate when your source shows a different value.
At 20% tax, $120.00 gross equals $100.00 before tax and $20.00 tax. View calculation formula
Remove tax from a total
Net price = gross total / (1 + VAT rate / 100). The tax amount is the gross total minus the net price.
120 at 20% becomes 100 + 20
If the total is 120 and the tax rate is 20%, the pre-tax amount is 100 and the tax amount is 20.
Use the exact rate
Some countries, states, provinces, and products use reduced or combined rates. Change the rate when your invoice uses a different one.
reverse tax calculator UK
Built for United Kingdom tax-inclusive prices
Use this UK reverse tax calculator when a shelf price, invoice, or checkout total already includes VAT and you need the net price before VAT.
United Kingdom VAT rate source
The page defaults to the standard UK VAT rate.
If your item uses a reduced or zero rate, replace the default rate before using the result.
The standard UK VAT rate is commonly used for most taxable goods and services.
Source: UK Government VAT rates
Last verified: 2026-06-23
FAQ
What VAT rate does this United Kingdom calculator use?
It defaults to 20% Standard VAT. If your invoice uses a reduced or special rate, enter that rate manually.
Can I use this for United Kingdom invoices?
Yes, for quick calculation support. Use the exact tax rate shown on the invoice and confirm compliance details with official guidance or an accountant.
Does this page include historical VAT rates?
No. It focuses on the current default rate and lets you enter a custom rate when an older or special rate applies.
What is a reverse tax calculator?
A reverse tax calculator works backwards from a tax-inclusive total to estimate the pre-tax price and tax amount.
Is this tax advice?
No. This site provides calculation help only. Check official tax guidance or a qualified professional for compliance decisions.
Can I use a custom tax rate?
Yes. Enter any tax rate between 0 and 100 to match your invoice, country, state, province, or product category.
Results are for calculation support only and do not replace official tax rules, accounting advice, or professional tax guidance.