Free Estimate Maker for Freelancers
Build clean, itemized project estimates in minutes — then turn them into quotes and invoices as the work firms up. 100% free, no signup, everything runs in your browser.
Start with a professional invoice template
Our PDF builder handles estimates, quotes, and invoices from the same clean form. Set the document type, add line items, and download — no account, no data stored on our servers.
Open the generatorWhat makes a professional estimate?
An estimate is an approximate cost for work that hasn't been fully scoped yet. It's not legally binding like a quote — but it still needs to look professional and include the same core fields so clients can compare apples to apples.
- Your business name, address, and contact details
- Client name and billing address
- A unique estimate number (sequential, e.g. EST-2026-001)
- Issue date and an expiry date (most estimates are valid 15–30 days)
- Itemized line items — break work into specific deliverables
- Subtotal, tax, and total
- A clear "this is an estimate" disclaimer noting the scope may change
Estimate vs quote vs invoice
These three documents are often confused, but each plays a distinct role in the billing workflow:
| Document | When | Legally binding? |
|---|---|---|
| Estimate | Scope still forming | No |
| Quote | Scope locked in | Yes, once accepted |
| Invoice | Work completed | Yes |
For the full walkthrough of how they differ and when to send each, read our guide on quote vs estimate vs invoice.
FAQ
Is an estimate legally binding?
No. An estimate is a good-faith projection, not a contract. The final cost can change as the scope firms up. A quote, on the other hand, is binding once the client accepts it.
How long should an estimate stay valid?
Most freelancers and agencies make estimates valid for 15 to 30 days. Any longer than that and your own costs (materials, time, rates) may have drifted.
Do I need different software for estimates and invoices?
No — the BuildWithRiz generator handles both from the same form. Label the document appropriately and download as PDF.