The sales tax calculator can compute the sales tax amount and total cost from the state-specific tax rate and pre-tax price.
The following formulas are used:
Pre-tax Price = Total Price ÷ (1 + Sales Tax Rate ÷ 100)
Sales Tax = Pre-tax Price × (Sales Tax Rate ÷ 100)
Total Price = Pre-tax Price + Sales Tax
Sales Tax Rate (%) = (Sales Tax ÷ Pre-tax Price) × 100
A product costs $700, and the sales tax rate is 4.5%. Find the sales tax amount and the final price.
Apply the values in the formula:
= 700 × (4.5 ÷ 100)
= 700 × 0.045
Sales tax = $31.5
Final price = $700 + $31.5 = $731.5
The total price is $199, including 6.25% sales tax. Find the price before tax.
= 199 ÷ (1 + 6.25 ÷ 100)
= 199 ÷ 1.0625
Pre-tax Price = $187.29
A product costs $350, and the sales tax amount is $30. Find the tax rate.
= (30 ÷ 350) × 100
= 0.08571 × 100
Sales Tax Rate = 8.57%