This free Estimate template is a ready-to-use document you can fill in, export and send today. Professional cost estimate and quote template for contractors, designers, and service businesses before project start. Use it to bill a client clearly enough that finance can pay it without asking you a single question. Every field is editable, the preview updates as you type, and the finished file downloads as PDF or Word with no watermark and no sign-up.
Estimate, quote or invoice: which one to send and when
An estimate is your best educated guess at a price and is expected to move; a quote is a firm, fixed figure you commit to for a stated period; an invoice is the final bill once work is agreed or done. Sending a quote when you meant an estimate can lock you into a number you cannot honour, so choose the label deliberately. Use an estimate for open-scope work like renovations or custom projects, and a quote when the deliverables are well defined.
Always state a validity period. Wording such as "This estimate is valid for 30 days from the date above" protects you from being held to old pricing when material or labour costs shift. For work with genuine unknowns, a contingency line of around 10 to 15 percent is a normal and honest way to cover surprises, but label it plainly as a contingency rather than burying it in the totals, and explain it only applies if the extra work is actually needed.
Converting an estimate to an invoice should be a small step, not a rewrite. Keep the same line items, update quantities to what was actually delivered, remove the validity note, add an invoice number and payment terms, and reconcile any contingency by billing only what was used. Carrying the original estimate number onto the invoice gives the client a clear paper trail from quote to final bill.
Who this Estimate template is for
- Freelancers and consultants billing clients directly
- Small businesses that invoice a handful of customers each month
- Anyone who needs a compliant record for their accountant
What's included in this Estimate template
- Company name
- Client name
- Estimate number
- Issue date
- Valid until
- Project description
- Estimated total
How to use this Estimate template
- 1Replace the sender block with your own name, address and tax number.
- 2Add the client's legal name and billing address exactly as they gave it.
- 3Set a sequential invoice number and an explicit due date, not just "Net 30".
- 4Enter each line item with a description, quantity and rate — the totals compute themselves.
- 5Export to PDF and attach it to a short email naming the invoice number.
Estimate: mistakes to avoid
- Never reuse an invoice number. Cancel and issue a credit note instead.
- Write the due date as a real date. "Net 30" invites an argument about day one.
- Include the purchase order number if your client uses one — some finance systems will not pay without it.
- Send PDF, not Word, so the layout cannot shift on the client's machine.
Frequently asked questions
Is this Estimate template really free?
Yes. You can fill it in, export it to PDF or Word, and send it to a client without creating an account, and the exported file carries no watermark or branding of ours.
What must a Estimate include to be valid?
A unique sequential number, the issue date, an explicit due date, both parties' names and addresses, an itemised breakdown of what you delivered, the subtotal, any tax shown separately, the total due, and how to pay you. Most tax authorities also require your registration number where you have one.
Can I edit the line items and tax rate?
Yes. Add or remove rows, change descriptions and rates, and set your own tax percentage. The subtotal, tax and total recalculate from the rows, so the arithmetic on the page always adds up.
PDF or Word — which should I send?
Send the PDF. It renders identically everywhere and cannot be altered by accident. Keep the Word file for the occasional client whose finance system asks for an editable copy.