Estimate vs quote: the difference
By Diljit Ramachandran, founder of The Invoice Generator. Published Oct 26, 2026.
An estimate is your best guess at what a job will cost, and it can change. A quote is a fixed price you commit to for defined work. Some people mix the words, so label the document. Give an estimate when the scope is unclear and a quote when it is clear.
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What is the difference between an estimate and a quote?
An estimate is an approximate price. A quote is a fixed price for defined work. The difference is how firm the price is.
| Estimate | Quote | |
|---|---|---|
| Price | Approximate | Fixed |
| Can change? | Yes, if the work grows | Before acceptance, you can revise; after, only by agreement |
| Use when | Scope is unclear | Scope is clear |
| Customer can rely on it? | As a guide | As a price, while it is valid |
When do you give an estimate?
Give one when you cannot see the whole job yet, such as repairs behind a wall. Say what could change the price. A free estimate template has a place for that.
When do you give a quote?
Give a quote when you can price the whole job and will honour it. Say how long it holds. A free quote template covers it, and what is a quote explains the rest.
Questions
- Can the final bill be higher than an estimate?
- It can, if the work turned out bigger. Tell the customer in writing as soon as you know and get their agreement first. Some places limit how far a bill can exceed an estimate, so check your local rules.
- Is a free estimate really free?
- Often, but a site visit may be charged. Say so before you go.
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.