They look similar, but they do different jobs. Here's when to send each — and how to make both in under a minute.
| Estimate (Quote) | Invoice | |
|---|---|---|
| Purpose | Proposes a price before work begins | Requests payment after work is agreed or done |
| When | During the sales conversation | When payment is due |
| Binding? | Not a demand for payment — a good-faith figure | Yes — it's a request to be paid by a due date |
| Includes | Scope, expected price, validity date | Invoice number, due date, amount due, how to pay |
Send an estimate when a client asks "how much will this cost?" — it sets expectations and helps you win the job. Once the work is agreed (or delivered), send an invoice to actually get paid. Many freelancers send an estimate first, then convert the same line items into an invoice.
Minuteman Invoice does both — just switch the document type at the top of the form. No signup, no ads; your data stays in your browser.
Create an invoice or estimate free →Pro ($39 one-time) unlocks your logo, unlimited saved clients, estimate export and CSV — 30-day money-back guarantee.