Tax, Salary & Business
Invoice Total Calculator
Invoice Total: it totals each line (quantity × unit price), then applies tax and any discount. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
Use Invoice Total Calculator to total an invoice: give it your line items, discount and tax, press Calculate, and read off the invoice total — all worked out on your device.
Estimate only. Totals depend on the prices, tax and rates you enter; your actual invoice, taxes and shipping charges may differ.
About this calculator
Invoice Total is easiest to get wrong in the setup, not the arithmetic. It totals each line (quantity × unit price), then applies tax and any discount. It matters whenever pay, prices or filings depend on getting the arithmetic right before the paperwork does. The worked example on this page (5 units at 2,000 = 10,000; add 18% tax (1,800) and subtract a 500 discount = 11,300 total.) shows the full substitution; the calculator above runs the same working on your own numbers, in your browser, with nothing uploaded.
How to use
- List each item as name, quantity, unit price on its own line.
- Enter the discount percentage to apply to the subtotal.
- Enter the tax percentage charged on the discounted amount.
- Tap Calculate to see the subtotal, discount, tax, and total.
Why use the Invoice Total Calculator
Instant
Every figure is computed on your device the moment you tap Calculate.
Private
Your numbers stay in your browser; nothing is sent to a server or saved.
Free
No signup, no paywall, and no ads placed inside your results.
Works offline
Once the page has loaded it keeps working even on a weak connection.
Mobile-first
Laid out for phones and tablets just as much as for desktops.
Honest estimates
Uses simplified, standard formulas for educational estimates; real-world figures vary with local rules, fees, and current rates.
Common uses
Use it for freelance and small-business billing
Use it for a quick invoice total
Use it when adding shipping to a bill
Use it for itemised totals
Use it when issuing a receipt
Invoice Total in accounts-receivable work
Technical notes
Invoice Total Calculator totals each line (quantity × unit price), then applies tax and any discount.
Figures use the costs, prices and rates you enter and exclude taxes and one-off charges unless a field asks for them.
Nothing you type is uploaded — the calculation happens entirely on your device.
Worked example
5 units at 2,000 = 10,000; add 18% tax (1,800) and subtract a 500 discount = 11,300 total.
FAQ
How does this invoice total calculator apply discount and tax?
It first sums the line items into a subtotal, subtracts the percentage discount, then applies tax to the discounted amount, so tax is charged after the discount.
Does the Invoice Total Calculator send my data to a server?
No. The Invoice Total Calculator runs entirely in your browser with JavaScript; the values you enter never leave your device and nothing is uploaded or saved.
What format should each item line use?
Use name, quantity, unit price separated by commas, for example Widget, 10, 50. Each line needs all three parts or it is flagged.
Are discount and tax percentages or amounts?
Both are percentages. The discount is a percent of the subtotal and the tax is a percent of the discounted subtotal.