Free tool
Free Estimate Generator
Create a polished estimate, add terms, show a valid-until date, and download a PDF for client approval. No signup and no watermark.
Estimate to invoice
Create a free estimate now. With an account, you can track approvals and turn an approved estimate into an invoice from your dashboard.
Estimate Generator
Send a polished quote with validity dates and approval-friendly terms.
FreeInvoices.co Studio
hello@example.com
Estimate
Estimate # EST-2026-001
Issue Date 07/22/2026
Valid Until 08/21/2026
Bill To
Client Name
Balance Due
$450.00
| Description | Date | Qty | Price | Tax | Discount | Total |
|---|---|---|---|---|---|---|
| Professional service | - | 1 | $450.00 | 0% | $0.00 | $450.00 |
Notes
Thanks for the opportunity to quote this work.
Terms
This estimate is valid through the date shown above and may be adjusted if the scope changes.
Payment Instructions
Pay by bank transfer, card, check, or the method agreed with your business.
What is an estimate?
An estimate is the document you send before work begins: it proposes the scope, the line items, and the expected price so the client can approve the job with clear expectations. A good estimate prevents the two most expensive conversations in service work: "I didn't know it would cost that" and "I thought that was included."
Estimate vs. invoice
The estimate comes before the work and proposes a price; the invoice comes after the work (or at a milestone) and requests payment of the agreed amount. On approved jobs, the final invoice should reuse the estimate's line items, crediting any deposit, so the client recognizes exactly what they approved. For larger projects, it is standard to collect a 25-50% deposit between approval and the start of work.
How to write an estimate clients approve quickly
Itemize the scope instead of quoting one number. Clients approve line items they can understand faster than lump sums they have to trust. State whether the price is fixed or approximate, list anything that could change it (site conditions, material selections, revision limits), give the estimate a valid-until date, and spell out the deposit and payment terms that will apply once approved. Then make approval easy: a reply of "approved" to the email carrying the PDF is all it takes.
Estimate FAQs
What is the difference between an estimate and a quote?
An estimate is a good-faith approximation of the price that may shift if scope or materials change. A quote usually implies a firm, fixed price. Clients use the words interchangeably, so the safest practice is to state on the document whether the number is fixed or subject to change.
Is an estimate legally binding?
Generally an estimate is a projection, not a contract, but a client-approved estimate (especially one labeled as a fixed quote) can form the basis of the agreement. State your assumptions and what could change the price, and get approval in writing before starting.
How long should an estimate stay valid?
30 days is the most common window. Material prices, your availability, and scope understanding all drift, so a valid-until date protects you from being held to stale pricing months later.
How do I turn an estimate into an invoice?
Once the client approves, invoice a deposit if one was agreed, do the work, then send a final invoice using the same line items as the estimate, crediting any deposit already paid. Keeping the line items identical between estimate and invoice is what makes the final bill feel expected instead of negotiable.