Invoice Calculator
Build invoices with multiple line items, apply tax and discounts, and calculate totals instantly
Invoice Details
Line Items
DescriptionQtyUnit PriceTotal
$100.00
Tax & Discount
Tax applied to $100.00 (after discount)
🧾 Invoice SummaryINV-001
March 2, 2026
Service / Product x1$100.00
Subtotal$100.00
Tax (8.5%)+$8.50
Total Due$108.50
📦 Line Items
1
products / services
🏷️ Total Savings
$0.00
from 0% discount
🏛️ Tax Collected
$8.50
at 8.5% rate
💡 How Invoice Totals Are Calculated
- • Line Total: Quantity x Unit Price for each item
- • Subtotal: Sum of all line item totals
- • Discount: Applied as a percentage of the subtotal
- • Tax: Applied to the amount after discount
- • Total Due: After-discount amount + tax
- • Add as many line items as needed - the summary updates in real time