Sales Tax Calculator

Add sales tax to a price.

Total with tax ($) 108.25

Tax amount ($) 8.25

Formula: total = price × (1 + rate/100)

Step-by-step with your numbers:

1. Values used:

2. Pre-tax price = 100 $

3. Tax rate = 8.25 %

5. Total with tax = Pre-tax price + Tax rate = 100 + 8.25 = 108.25$

6. Tax amount = (100 / 100) x 8.25 = 1 x 8.25 = 8.25$

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Find the tax and final total on a purchase.

The math behind it

tax = price × rate/100; total = price + tax.

$100 at 8.25% → $8.25 tax, $108.25 total.

Reverse from total?

pre-tax = total ÷ (1 + rate/100).