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Discount before tax
Most jurisdictions apply sales tax on the price after discount, which lowers the tax you collect or pay.
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Use two rates when needed
Some regions stack state + local tax, or VAT + additional levy. Enter both rates for an accurate total.
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Show tax clearly on invoices
Separating tax from the base price keeps records clean and helps customers understand the final amount.
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Check local rules
Taxable base and rates vary by product and location. This tool is a calculator, not legal tax advice.