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VAT Calculator

Add VAT to a net amount or remove VAT from a VAT-inclusive total, with quick UK rate presets or any custom rate.

Quick rates:

Net amount

£100.00

VAT amount

£20.00

Gross amount

£120.00

At 20% VAT, £100.00 net becomes £120.00 gross.

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How to use VAT Calculator

  1. 1Choose whether to add or remove VAT.
  2. 2Enter the amount and VAT rate.
  3. 3Read the net, VAT and gross amounts.

Useful tips

  • •The UK standard VAT rate is 20%, while reduced and zero rates apply to some goods and services. Use the quick presets only when they match your transaction, or enter the correct custom rate.
  • •Use Remove VAT when your starting amount already includes VAT.
  • •Keep invoices and professional tax records separate from this estimate.

Frequently asked questions

How do I remove VAT from a gross amount?

Removing VAT is not the same as subtracting the VAT percentage from the gross total. The VAT-inclusive amount is divided by 1 + the VAT rate, so £120 at 20% gives £100 net and £20 VAT.

Can I enter another VAT rate?

Yes. The VAT percentage is fully editable.

Does this replace tax advice?

No. Confirm the applicable VAT rules for your transaction.