8% Tax on $120
Tax amount, total price, step-by-step formula, and regional context.
Tax Amount
$9.60
Total Price
$129.60
Effective Rate
7.4074%
$120 × 1.08 = $129.60
Formulas
Add tax (total):
Price × (1 + Rate/100)
Tax amount only:
Price × Rate/100
Remove tax (pre-tax):
Total ÷ (1 + Rate/100)
Effective rate:
(Tax ÷ Total) × 100
Step-by-Step
1
Convert to decimal
8 ÷ 100 = 0.08
2
Calculate tax
$120 × 0.08 = $9.60
3
Add to price
$120 + $9.60 = $129.60
4
Verify (reverse)
$129.60 ÷ 1.08 = $120 ✓
Pre-tax
$120
Tax added
$9.60
Total
$129.60
Eff. rate
7.4074%
Reverse: Remove 8% from $129.60
If you have a tax-inclusive total of $129.60 and need to extract the 8% tax:
$129.60 ÷ 1.08 = $111.11 pre-tax
🌍
Where is 8% used? — US combined rate
Common combined state + county/city US sales tax rate.
Real-World Context
A $120 purchase with 8% tax costs $129.6 all-in. The $9.6 is what the retailer collects and remits — it doesn't stay with the seller.
Frequently Asked Questions
How much is 8% tax on $120?
8% tax on $120 is $9.60. Total including tax: $129.60. Formula: $120 × 0.08 = $9.60, then $120 + $9.60 = $129.60.
How do I remove 8% tax from $129.60?
Divide by 1.08: $129.60 ÷ 1.08 = $111.11 pre-tax. Tax component: $18.49.
Why is the effective rate (7.4074%) lower than 8%?
The 8% rate applies to the pre-tax amount ($120). The effective rate — tax as a share of the total ($129.60) — is always lower because the denominator is larger.
Where is 8% tax used?
US combined rate: Common combined state + county/city US sales tax rate. Always verify the current rate with your local tax authority.
Need more tax calculation modes?
Open Full Tax Calculator →