Invoice vs Estimate vs Quote
An estimate is your expected price for a job, sent before work starts. A quote is a fixed price you commit to. An invoice is the bill you send after the work is done, asking the client to pay. Estimates and quotes win the job; invoices collect the money.
| Estimate | Quote | Invoice | |
|---|---|---|---|
| Purpose | Predict the likely cost | Offer a fixed price | Request payment |
| When you send it | Before work begins | Before work begins | After work or delivery |
| Can the price change? | Yes, if scope changes | Not without a change order | No, it reflects what was agreed |
| Client action | Review and approve | Accept in writing | Pay by the due date |
| What it contains | Scope, line items, expected total | Scope, line items, firm total | Itemized charges, tax, due date, payment options |
When to send an estimate
Use an estimate when the final cost depends on things you cannot fully know yet, such as hidden damage behind a wall, the amount of materials, or hours of labor. It sets expectations without locking you into a number.
- Repair and remodel work where scope can shift once you open things up
- Time-and-materials jobs billed by the hour
- Early conversations where the client is comparing several contractors
When a quote makes more sense
Send a quote when the scope is clear and you are willing to stand behind a single price. Clients like the certainty, and you protect yourself by stating exactly what is and is not included.
When to send an invoice
Send the invoice when the work is complete, or at an agreed milestone or deposit stage. It should match what was approved, plus any approved changes, and show the amount due, the due date and how to pay.
How the three connect on a real job
In MyInvoice the client approves the estimate online in one tap, the approved estimate becomes a scheduled project, and you bill from the same line items. Nothing is retyped between steps.
- Send an estimate with clear line items and get the client's approval in writing
- Collect a deposit if the job needs materials ordered up front
- Do the work and note any approved changes as you go
- Convert the approved estimate into an invoice and send it with a payment link
Common questions
Is an estimate legally binding?
It depends on how it is written and on your state's rules. An estimate is generally understood as an approximation, while a signed quote or contract is a commitment. If it matters, say clearly on the document whether the price is an estimate or fixed, and ask a local professional about your state's requirements.
Can I turn an estimate into an invoice?
Yes. Once the client approves the estimate and the work is done, reuse its line items for the invoice and add any approved changes. MyInvoice converts approved estimates so you do not retype anything.
Do I need an estimate before every invoice?
No. Small, repeat or same-day jobs often go straight to an invoice. For larger or uncertain jobs, an approved estimate protects both sides and reduces disputes over the final price.
What is the difference between a quote and an estimate?
A quote is a firm price for a defined scope. An estimate is your best prediction of the cost and can change if the scope changes.
Send the estimate, get the approval, bill the job
MyInvoice takes you from estimate to approval to paid invoice in one place. Free for 14 days.
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