Sales Tax Calculator — Add Tax or Extract Tax — Free Online Calculator
Add sales tax to a price or extract the tax from a total amount collected. The "Extract Tax" mode is essential for e-commerce and retail business owners.
✓ Formula verified: January 2026For informational purposes only
Sales Tax Calculator
Results below
Enter Values
Total Price (With Tax)
$86.60
Tax Amount
▼ $6.60
Pre-Tax Price
$80.00
Tax Rate Applied
8.250%
What if your amount ($) changes? $72 → $77.94 · $80 → $86.60 · $88 → $95.26
Scenario Comparison
Conservative (5%)
$16,470.09
$6,470.09 interest
Your scenario (7%)
$20,096.61
$10,096.61 interest
Aggressive (10%)
$27,070.41
$17,070.41 interest
High-risk (14%)
$40,224.71
$30,224.71 interest
Best return
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Add Tax — Breakdown
Pre-Tax 92%
Pre-Tax Amount
The revenue you keep
Tax Amount
To remit to tax authority
Total (with Tax)
Amount collected
Tax Rate8.250%
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