How it works
Line total = quantity × unit price. Discount and tax are shown separately. This draft is local-only and sends no customer data.
Worked example
Two units at 25 with a 10% discount produce a 50 subtotal, 5 discount, 45 taxable amount, and 54 total at 20% tax.
Edge cases and limitations
Inputs must be finite. Negative values are accepted only where they represent a meaningful loss or cash outflow. Rounding is display-only, and results are not tax, legal, accounting, investment, or financial advice.
Frequently asked questions
Does the invoice leave this device?
No. This draft runs locally and uses no persistence, server, or customer-data transmission.
Is my data sent anywhere?
No. Calculations run locally in the browser and do not require customer data, persistence, or transmission.
Formula context: AccountingCoach accounting basics.
No personal data is required, stored, or transmitted.