VAT Calculator for United Kingdom

Enter a VAT rate you have checked from an official source. No rate is auto-filled. This page is generated at build time and does not collect or store IDs or calculator inputs.

VAT estimate inputs
Enter a rate you have checked from an official source. No country rate is assumed by default.
Your calculator inputs are processed in your browser. Do not enter sensitive personal information.
Net amount
GBP 100.00
VAT amount
GBP 0.00
Gross amount
GBP 100.00

Tax calculations are for general estimation only and are not tax, accounting, or legal advice. Always confirm with your tax authority or a qualified professional. The calculator does not know registration status, marketplace collection rules, exemptions, thresholds, filing rules, or local tax law.

United Kingdom page currency: GBP. Entering 0.00% as a rate does not mean this site has verified that rate for your sale.

What this calculator does

This calculator separates net amount, VAT amount, and gross amount. It does not choose a tax rate for you. Enter only a rate you have checked for your sale, jurisdiction, product type, and seller status.

When to use this tax calculator
  • Separate net amount, VAT amount, and gross amount.
  • Check tax-inclusive versus tax-exclusive pricing with a rate you already verified.
  • Model a rate from an official tax authority, seller dashboard, invoice, or qualified professional.
What this calculator does not do
  • It does not choose or verify your tax rate.
  • It does not verify VAT, GST, HST, PST, QST, or sales tax registration.
  • It does not replace tax filing, accounting advice, legal advice, or official tax authority guidance.
  • It does not check IBAN, BIC/SWIFT, SEPA eligibility, bank account reachability, payout timing, or bank transfer fees.
Country-specific assumptions
  • UK sellers commonly review fees alongside VAT treatment, GBP settlement, and whether a buyer is domestic or cross-border.
  • UK pages use GBP. The official region code is GB, while the public URL uses the user-friendly slug uk.
  • Verified VAT rates are not part of the current fee data set.
  • No IDs or calculator inputs are sent to a server or analytics.
  • No site-maintained VAT rates are supplied by default.
Source status

Manual-rate mode. No site-maintained VAT rate is supplied by this calculator, and no rate is inserted automatically.

Custom rate explanation

The rate field is for a value you have checked yourself. Inputs stay in browser state only and should not include VAT IDs, TINs, or personal information.

Example calculation

For a GBP 100.00 sale, enter your checked tax rate and choose whether 100.00 is tax-exclusive or tax-inclusive. The calculator then shows net, tax, and gross amounts using decimal-safe arithmetic.

Tax-inclusive vs tax-exclusive calculation

Tax-exclusive: tax amount = net amount x tax rate. Gross amount = net amount + tax amount.

Tax-inclusive: net amount = gross amount / (1 + tax rate). Tax amount = gross amount - net amount.

Example using a rate you entered

If you enter a checked rate of 20% and a net amount of GBP 100.00, the math example shows GBP 20.00 tax and GBP 120.00 gross.

This does not mean this site verified 20% as the correct rate for your sale.

Common mistakes
  • Using a country-wide rate without checking product, jurisdiction, or marketplace rules.
  • Treating marketplace-collected tax as seller income.
  • Mixing platform fees and tax amounts in the same line item.
  • Using this calculator for tax filing instead of planning.
FAQ

Does this page choose the correct VAT rate?

No. You must enter a rate you have checked from an official source or a qualified professional.

Can I use this for filing?

No. VAT calculations are for general estimation only and are not tax, accounting, or legal advice.

Are VAT IDs, TINs, or business IDs required?

No. Do not enter sensitive personal, tax, or business identity information into the calculator.

How does tax-inclusive mode work?

Tax-inclusive mode treats the amount as already containing tax and estimates the net amount and tax portion from your checked rate.