Sales Tax & Discount Calculator
Calculate total purchase price with sales tax and promotional retail discounts.
⚙️ Sales Tax Inputs
📊 Price Breakdown
Total Gross Price
$135.31
Sales Tax Amount: $10.31
| Financial Component | Amount |
|---|---|
| Original Price | $125.00 |
| Discount Savings | $0.00 |
| Discounted Price | $125.00 |
| Sales Tax | $10.31 |
| Total Final Price | $135.31 |
How to Use This Calculator
- Step 1: Enter original price, sales tax rate percentage, and optional discount.
Formula & Calculation Method
Subtotal = Price × (1 - Discount) | Tax = Subtotal × TaxRate | Total = Subtotal + Tax
Where the variables represent:
| Variable | Description & Units |
|---|---|
| Price | Original item price |
| TaxRate | Sales tax percentage rate |
Worked Calculation Example
Scenario:
$125 item with an 8.25% sales tax rate.
- Tax = $125 × 0.0825 = $10.31
- Total = $125 + $10.31 = $135.31
Result: Total gross price is $135.31.
Frequently Asked Questions
Is sales tax applied before or after discounts?
Retail discounts are almost universally applied before sales tax is calculated.
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Accuracy & General Guidance Disclaimer: This calculation tool is provided for educational and practical planning purposes. Formulas are verified against standard mathematical models. Do not rely on estimates as certified professional, financial, legal, or medical advice.