Step-by-step instructions
- Enter or select Subtotal.
- Enter or select Discount (%).
- Enter or select Tax (%).
- Tap Calculate.
- Review the result shown directly below the calculator.
Invoice Calculator
Calculate invoice total after discount and tax.
How to use the Invoice Calculator
Calculate invoice total after discount and tax.
What the inputs mean
- Subtotal
- Enter the full amount, target, goal, or capacity used as the comparison value.
- Discount (%)
- Enter the percentage value requested by the calculator.
- Tax (%)
- Enter the percentage value requested by the calculator.
Formula or calculation method
The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.
Example
Try entering realistic values for Subtotal and Discount (%), then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.