Estimate — ballpark before the work starts
An estimate sketches expected cost so the client can decide whether to proceed. Ranges are fine when the scope is fuzzy (“roughly 12–16 hours”). Say what could change the number.
It is usually not the document you use to collect final payment. Browse estimate generators when you need a PDF for that stage.
Quote — firmer price with terms
A quote is a formal offer: price, what is included, validity (“good for 14 days”), and often payment schedule. Once accepted, both sides treat it as the plan.
Use quote generators when the client asks for something they can approve in writing. After delivery, you bill with an invoice — not another quote.
Invoice — payment is due
An invoice requests money for completed work or delivered goods. It needs a unique number, due date, itemized totals, and payment instructions. Start from invoice generators or create an invoice.
- Estimate → early budget conversation
- Quote → formal proposal with acceptance
- Invoice → work done (or agreed billing event), pay now
A simple timeline
Discovery call → estimate if scope is unclear. Scope locked → quote. Work delivered (or milestone hit) → invoice. If scope changes mid-project, send a revised quote or a change order before you invoice the delta.
Freelancers who skip the quote and jump straight to invoices often fight about extras. Ten minutes on a quote saves a week of awkward email.
Convert estimate to invoice in the editor
Open an estimate, click Convert to Invoice, check that the new number follows your numbering system, set the due date from your payment terms, then download PDF — free, logo optional, no signup.
Create yours free online (next step)
Need a ballpark? Open an estimate generator. Need a firm offer? Use a quote generator. Ready to bill? Start from invoice templates or create invoice now.
Deposits or customs paperwork may need a proforma instead of a final tax invoice.
Disclaimer
Document types and tax treatment vary by country. This comparison is practical guidance for client PDFs, not legal advice. For customs or deposit paperwork, also read proforma invoices.