Invoice Total Calculator
Estimate an invoice total after discount and tax.
Calculations run in this browser. Values are not submitted to the server.
Result
Formula and assumptions
Tax is applied to the discounted subtotal: total = subtotal × (1 − discount) × (1 + tax). Actual tax rules may differ.
Example values are shown in the input placeholders. Results use browser number precision unless the tool uses exact integer arithmetic. Check units and assumptions before using a result.