VAT Calculator — Add or Remove VAT from Any Amount | Kalkmi
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VAT Calculator — Add, Remove & Find VAT

Add VAT to a net price, remove VAT from a gross total, or find the effective VAT rate with currencies, rounding, formulas, and a clear tax breakdown.

Add VAT to a net amount

Enter a price before VAT to calculate the tax amount and invoice total.

Quick rate:
Try an example:
Gross total£120.00
VAT amount£20.00
Net amount£100.00

Net and VAT breakdown

Net share
VAT share of gross

Formula

Compare common VAT rates

RateNetVATGross

Rates shown are calculation examples, not a statement of current tax law. VAT eligibility, rates, and rounding rules vary by country, product, invoice, and scheme.

Add VAT to a price

Use Add VAT when the amount is net of tax. The VAT amount equals net price multiplied by the rate; gross total is the net amount plus VAT.

Remove VAT from a gross total

VAT is not removed by simply subtracting the percentage. Divide the VAT-inclusive total by one plus the decimal rate, then subtract the net amount from the gross total.

Find an effective VAT rate

If both net and gross values are known, the rate finder calculates the percentage increase from net to gross. It is useful for checking invoice lines or reverse-engineering a quoted total.

VAT rounding

Choose the displayed precision needed for your check. Official invoices may require tax to be rounded per line or on the invoice total; follow the rules that apply to your jurisdiction and accounting system.

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