Business & Finance Calculators Sales Tax & VAT Calculator Adds or removes tax from a gross amount based on local tax rates. Sales Tax & VAT Calculator Add Tax (+) Remove Tax (-) Amount ($) Tax Rate (%) 5% 10% 15% 20% Total Amount (Tax Included) $110.00 Net Amount (Before Tax):$100.00 Tax Amount:$10.00 Gross Total:$110.00