Split any gross receipt, invoice total, or credit card charge into its original net price and sales tax amount using real-time reverse calculation.
Input Gross Amount
Type the total tax-inclusive receipt or payment amount.
Set Tax Rate
Adjust the percentage rate to reflect your jurisdiction's tax rate.
Copy Net & Tax Values
View the net subtotal and calculated tax breakdown instantly.
To back-calculate net amounts from gross receipts, the tool uses Net = Gross ÷ (1 + Tax Rate). It isolates the exact tax component in real time.
Whether calculating 10% GST, 20% UK VAT, or local US sales taxes, adjust the percentage field to match your local tax jurisdiction.
Results update dynamically using standard currency rounding to maintain ledger accuracy.
This calculator performs instant line-by-line calculations directly in your browser tab.