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StiffProof

Invoice Template

A free invoice template you can fill in online or download as PDF, Word, or Excel — with the math done for you, in four professional styles.

ClassicSerif typography and a centred masthead. Reads like a letter from a firm.
ModernClean sans-serif with plenty of air. The safe default.
BoldA solid colour panel and heavy headings. Hard to mistake for anyone else.
CompactSmaller type and tighter rows, for invoices with a lot of lines.

Or fill it in right here — no download needed

From
Bill to
Line items
Professional services6 hours × $125.00$750.00
Materials and expenses$185.00
Total$935.00

Frequently asked questions

What should an invoice include?
Your business details, the client’s, an invoice number, the date, line items with quantities and prices, the total, and payment terms. The template pre-fills the structure; you fill in the specifics.
Is there a version for my trade?
Yes — trade-specific invoice templates (like the plumbing invoice template) come pre-filled with the line items that trade actually bills, in a design chosen for it. They’re linked below as they ship.
What’s the difference between an invoice and an estimate?
An estimate proposes a price before the work; an invoice requests payment for it. Make the estimate first, then convert it to an invoice in one step when the client says yes — the numbers carry over.
Do I need an account to use the invoice template?
No — the generator is free with no signup, no document caps, and no watermarks. Your work autosaves in your browser and exports as PDF, JSON, or CSV whenever you want it.