Quote vs invoice: the difference
By Diljit Ramachandran, founder of The Invoice Generator. Published Oct 26, 2026.
A quote (or quotation) is a price you give a customer before the work starts. An invoice is the bill you send after the work is done, or at an agreed stage. The quote says what it will cost; the invoice asks for payment of what was delivered.
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What is the difference between a quote and an invoice?
A quote is an offer of a price for defined work. An invoice is a request for payment for work done or an agreed stage. The quote comes first and the invoice follows.
| Quote | Invoice | |
|---|---|---|
| When | Before the work | After the work or at a stage |
| Purpose | Offers a price | Asks for payment |
| Customer's reply | Accepts or declines | Pays |
| Fixing mistakes | Revise and resend before it is accepted; after, only by agreement | Credit note or corrected invoice |
How does a quote become an invoice?
When the customer accepts, copy the lines from the quote into a new invoice, add the invoice number, date and terms, and bill what was done. If the job changed, bill the change and say so.
Quote, estimate or invoice: which do you send?
See estimate vs quote for the middle step, and the free quote template to make one.
Questions
- Is a quote an invoice?
- No. A quote offers a price before the work. An invoice asks for payment for work done or an agreed stage.
- Can I invoice more than I quoted?
- Normally only if the customer agreed to the extra work or your terms allow it. Record any change in writing first, and check your contract and local rules.
Keep every document in one place
- A free account saves a copy of each invoice, remembers your clients and items, and shows what is paid and overdue.
- Pro numbers your invoices for you, emails payment reminders, and repeats the ones you send every month.
Drafted with AI assistance from public sources and our own tool, and published by Diljit Ramachandran. It has not been checked by an accountant. It is general information, not tax or legal advice. Rules differ by place; check with an accountant or your local tax office.