Contractor paperwork
Contractor Estimate vs Invoice: What's the Difference?
New shops mix these up. An estimate prices the job before work. An invoice asks for payment for work agreed or completed. Use both on purpose.
Quick answer
- An estimate is a price proposal sent before the work. It shows scope, price, and how long the offer lasts.
- An invoice is a bill. It asks the customer to pay for work that was agreed, started under milestones, or finished.
- Do not use an invoice to invent a new price the customer never approved. If the scope changed, revise the estimate or use a change order first.
The plain difference
Think of the estimate as the offer and the invoice as the request for money. The estimate helps the customer decide. The invoice tells them what to pay and when.[3]
| Estimate | Invoice | |
|---|---|---|
| When you send it | Before work, or before a scope change is approved | After acceptance, at a milestone, or after completion |
| Main job | Propose price and scope | Collect payment |
| Customer action | Review and accept or decline | Pay by the due date |
| Typical date field | Valid until | Due date |
| If scope changes | Revise or add a change order | Bill only what was approved |
When to send an estimate
- After a site visit or clear photo review, before you buy materials.
- When the customer asks what it will cost.
- When they add work and you need a new approval before you do it.
A good estimate still lists business details, scope, price, exclusions, payment terms, and a validity date. Consumer guidance from the FTC pushes homeowners toward written cost and scope details for a reason: memory fades, jobs change, and both sides need the same numbers.[1]
When to send an invoice
- Deposit due after the estimate is accepted.
- Progress billing on longer jobs after a milestone is done.
- Final balance when the agreed work is complete.
Your invoice should match the approved estimate or change order. If you discovered extra work, get that approved first. Then invoice the approved amount. Quietly padding the final bill is how reviews and payment disputes start.
A simple job flow
- Visit or review the job.
- Send an estimate.
- Customer accepts.
- Send a deposit invoice if you collect one.
- Do the approved work.
- If they add work, get a written change approved first.
- Send the final invoice for the remaining balance.
Example labels so nobody confuses the PDFs
Estimate EST-022: Hallway paint, $640, valid through August 21, 2026
Invoice INV-022A: Deposit due on acceptance, $200
Invoice INV-022B: Final balance on completion, $440
Quick note on legal weight
An unsigned estimate is usually just an offer. Once the customer accepts, many jobs treat that accepted price and scope as the deal you both expect to follow. An invoice then documents what is owed. State contract rules still vary, especially on home-improvement work and required written terms, so treat this as practical workflow guidance rather than legal advice for every state.[2][1]
Keep the offer and the bill connected
The cleanest shops can point from an accepted estimate to the invoice without rebuilding numbers from memory. Jorvio is built around clear quotes and customer approval so the money ask matches what was already agreed.
Frequently asked questions
Can an estimate and an invoice be the same document?
They serve different moments. You can convert an accepted estimate into an invoice, but label them clearly so the customer knows when they are approving work versus when they are being asked to pay.
What if my final costs were higher than the estimate?
If the customer never approved a change, you generally should not surprise them on the invoice. Explain the issue, document the extra scope or cost, and get agreement before billing the difference.
Is a quote the same as an estimate?
In everyday contractor talk, people use both words for the price you send before work. What matters is that the document is clear, dated, and accepted before you rely on it.
Do I need an estimate if the job is tiny?
Even a short written estimate helps. A one-line scope, total, and acceptance still beats a text that says around 200 bucks.
Sources
- [1] Hiring a Contractor by Federal Trade Commission. Federal guidance encouraging written cost and scope details before home-improvement work proceeds.
- [2] Home Improvement Contracts by California Contractors State License Board. Example of state rules that treat written home-improvement agreements and changes as required paperwork, not optional extras.
- [3] Estimate vs. Invoice: How Do They Compare? by Invoiced. Plain comparison of estimates as pre-sale proposals and invoices as post-delivery payment requests.
Offer first, bill second
Send estimates customers can approve before you invoice
Jorvio keeps the quote clear and approval on record so your invoice matches the job you both agreed to.
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