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Sales Tax Calculator
Calculate the sales tax amount and total price from a subtotal and a sales tax rate percentage you enter.
How to Use Sales Tax Calculator
- 1Enter your subtotal amount
- 2Enter the sales tax rate percentage
- 3Click Calculate to see the tax amount and total price
Frequently Asked Questions
No — you enter the tax rate percentage yourself. Sales tax/GST rates vary by product category and jurisdiction, so this tool doesn't have a lookup database; check your applicable rate separately.
This tool works subtotal → total (adds tax on top). The Reverse Calculator works total → subtotal (extracts the tax already included in a final price).
Yes — the formula (amount × rate% = tax) is the same regardless of what the tax is called; just enter your applicable GST rate.
No — it applies your entered rate uniformly. For a mix of taxable and exempt items, calculate them separately.
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