Invoice Calculator

Quickly calculate invoice totals and related amounts with this simple online invoice calculator, designed for everyday business use.

Invoice Items

Amount $ 0.00
Subtotal $ 0.00
Discount $ 0.00
Tax $ 0.00
Invoice Total $ 0.00

How It Works

Item Amount = Quantity × Unit Price

Subtotal = Sum of all item amounts

Discount = Subtotal × Discount %

Tax = (Subtotal − Discount) × Tax %

Invoice Total = Subtotal − Discount + Tax

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