Free invoice generator
Build a clean, professional invoice in the browser — add your details and line items, pick the province, and the tax computes itself. Print or save as PDF from the print dialog. Free, no account needed.
Runs entirely in your browser — nothing you type is uploaded.
| Description | Qty | Price | Amount |
|---|---|---|---|
| Item or service | 1 | $100.00 | $100.00 |
Generated free at serobooks.app — accounting software that runs the whole business.
What a Canadian invoice has to carry
If you are registered for GST/HST, your invoices need your business name, the date, your GST/HST registration number, a description of what was supplied, the amount, and the tax shown either as an amount or as the rate applied. Larger invoices carry more requirements, and your customer needs those details to claim their own input tax credits.
Getting this right is not pedantry: an invoice missing the registration number can cost your customer their credit, which is the kind of thing that ends trading relationships.
Where a generator stops being enough
A generated PDF is a document, not a record. It does not know whether it was paid, does not age into a receivable, does not relieve stock, and does not post to a ledger — so at some volume you are maintaining a spreadsheet beside a folder of PDFs, and reconciling the two.
That is the point at which invoicing wants to be part of the books rather than a separate act. Until then, this tool is free and runs entirely in your browser.
Frequently asked questions
Is this really free?
Yes — no signup, no watermark. If you invoice more than occasionally, SeroBooks does this plus the books behind it.
Is my data uploaded anywhere?
No. The generator runs entirely in your browser; nothing you type leaves your device.
Like the tool? The software does this on every document.
Free to start, on Windows, Mac, iPad and Android. No credit card.