Invoice Generator

What does Invoice Generator do?

Free invoice generator: add your logo, client, line items, tax, discount and shipping in any currency, see a live preview and download a PDF. No sign up.

Price

Free

Account

Not required

Processing

Entirely in your browser; your data and files are not uploaded

Works on

Any modern browser on desktop, tablet or phone

Category

Business Tools

How to use the invoice generator

1. Enter your business details and, optionally, add your logo (PNG or JPEG up to 2 MB).
2. Enter the client, invoice number, issue date and payment terms, then choose the currency and number format.
3. Add line items with a description, quantity and unit price. Reorder or remove rows with the buttons under each item.
4. Set your tax label and rate, any discount, shipping and amount already paid, and add payment instructions or notes.
5. Check the live preview, choose A4 or US Letter and click Download PDF. Use New invoice for the next one; the number is incremented for you.

Worked example

Two items, 10% discount, 8.25% sales tax, $5 shipping and a $20 deposit

2 x $49.99 = $99.98 and 1 x $0.05 = $0.05, so the subtotal is $100.03. The 10% discount is $10.003, rounded to $10.00, leaving $90.03. Sales tax at 8.25% is $7.427475, rounded half-up to $7.43. Adding $5.00 shipping gives a total of $102.46, and after the $20.00 deposit the amount due is $82.46. The tax rate and amounts here are examples; use your own.

How it works

All money is calculated in whole minor units (cents for USD, yen for JPY, fils for KWD, using the currency’s digits from the browser’s Intl data) with exact integer arithmetic, so there is no floating point drift. Each line amount is quantity x unit price, rounded half-up to the minor unit. Subtotal = sum of line amounts. A percentage discount is subtotal x rate rounded half-up; a fixed discount is capped at the subtotal. Tax = (subtotal - discount) x tax rate, calculated once for the whole invoice and rounded half-up (0.5 of a cent rounds up). Shipping is added after tax and is not taxed. Total = subtotal - discount + tax + shipping and amount due = total - amount already paid. The PDF is drawn with pdf-lib in your browser.

Assumptions

• The tax rate, label and whether tax applies at all are entered by you. The tool does not know the rules or rates for your country or product.
• Tax is calculated once on the invoice total after discount, not line by line. Some tax systems require per-line rounding, which can differ by a cent.
• Shipping is not taxed. If your shipping is taxable, add it as a line item instead.
• Due dates for Net 7, 14, 30 and 60 are that many calendar days after the issue date.

Frequently asked questions

Limitations

• Not tax or legal advice. You are responsible for the tax rate, required details and wording for your jurisdiction.
• One tax rate per invoice. Mixed rates, compound taxes and tax-inclusive prices are not supported.
• No e-invoicing formats (such as Peppol, Factur-X, XRechnung or FatturaPA), payment links or sending by email.
• The PDF uses standard fonts, so characters outside Western European scripts are replaced.
• The draft is kept only in this browser. Clearing site data removes it, so export important invoices as PDF and JSON.