An estimate is a document that gives a customer the expected cost of work or goods before you start. It lists the items, quantities and prices, and shows an approximate total. An estimate is not a final bill. The real cost can change if the scope, materials or time change.
When to use an estimate
Send an estimate when the customer needs a price to decide, but you cannot fix the final cost yet.
- A contractor looks at a repair job and does not know what is behind the wall.
- A designer or developer starts a project where the scope may grow.
- A mechanic or technician quotes a repair before opening the equipment.
- A caterer or event planner prices a service when the guest count is not final.
- A freelancer gives a first price range before a detailed proposal.
If the scope is clear and you want to commit to a price, a quote is a better fit. See estimate vs quote for the difference.
What to include on an estimate
A clear estimate prevents arguments later. Include these items:
- Your business details: name, address and email. The generator has these fields in the "From (your business)" section.
- Customer details: the "Estimate for" name and address.
- Estimate number and date: a number helps both sides find the document again.
- Currency: choose from USD, EUR, GBP, TRY, DKK, NOK, SEK, PLN, RON, IDR, THB or UAH.
- Line items: a description, quantity and unit price for each part of the job.
- Tax: a "Tax %" field on each line. The totals show subtotal, tax and total.
- Notes: the validity period, what is not included, how changes are handled and any payment terms.
The generator has no logo, signature or discount field. Write an expiry date, assumptions and any signature line in the Notes, or sign the printed PDF.
How to create an estimate with this generator
- Open the generator. You do not need an account.
- In "From (your business)", enter your business name, address and email.
- In "Estimate for", enter the customer name and address.
- In "Document details", enter the estimate number, the date and the currency.
- In "Line items", click "Add item" for each service or product. Enter the description, quantity, unit price and tax percentage. Use "Remove item" to delete a row.
- Check the live preview. It updates as you type.
- In "Notes", write the validity period and any assumptions.
- Click "Download PDF".
The tool does not save your data between visits. Keep the PDF in your own files.
Common mistakes
- Vague descriptions. "Repair work" tells the customer little. Name the task and the main materials.
- No assumptions. If the estimate depends on access, timing or customer-supplied materials, say so in the Notes.
- No validity date. Prices change. An estimate without an end date can stay open for months.
- Mixing estimate and final price. Label the document clearly as an estimate so the customer does not read the total as fixed.
- Forgetting tax. Add the correct tax percentage per line if tax applies to you. Tax rules differ by country, so check with your tax authority or accountant.
- Skipping the follow-up. Contact the customer a few days after you send it.
Estimate vs quote vs invoice
| Document | Purpose | Price |
|---|---|---|
| Estimate | Expected cost before work | Approximate, may change |
| Quote | Offer to do work at a set price | Fixed for the stated scope |
| Invoice | Request for payment after work | Final amount due |
An estimate often leads to an invoice. The guide on estimate to paid invoice shows the full flow. If you need a fixed offer, use the quote generator. When the job is done, create the bill with the invoice generator.
Price the job with confidence
Good estimates start with good numbers. Read pricing your services to set rates, and use the markup calculator to check that your materials cost plus markup gives the margin you want. For larger jobs, the project invoice calculator helps you total phases and expenses.
Frequently asked questions
- Does the PDF have a watermark?
- No. The PDF has no watermark and no mention of this site. The tool is free with no limit on how many documents you make. You do not need an account or an email address. The PDF is made in your browser, and your details are not sent to our server.
- What is the difference between an estimate and a quote?
- An estimate is an approximate price based on the information you have today. The final cost can change. A quote is a fixed price you commit to for a defined scope. If the work is well defined, send a quote. If the scope may shift, send an estimate and say so clearly.
- Is an estimate legally binding?
- Usually not, because an estimate gives an expected cost and not a fixed price. Rules differ by country and by industry, and some places limit how far a final bill may exceed an estimate. Check local rules with your accountant or a legal adviser, and write your terms clearly in the Notes.
- How do I write an estimate for a customer?
- Put your business details at the top, then the customer name, a date and an estimate number. List each service or item with a quantity and unit price. Add tax if it applies. Show the total, and add a short note about how long the estimate stays valid.
- Can I turn an estimate into an invoice?
- Yes. When the customer accepts and the work is done, copy the line items into the invoice generator and adjust any changed quantities or prices. Give the invoice its own number and add a due date. Keep the accepted estimate on file as your record of the agreed scope.
- How long should an estimate be valid?
- There is no fixed rule. Many businesses use 14 to 30 days, because material prices and your own availability change. Pick a period that fits your trade and write the end date in the Notes. After that date, send an updated estimate if the customer is still interested.
- Do I need an account to make an estimate here?
- No. The generator is free and runs in your browser. You do not sign up or log in. Nothing you type is stored on the server, so download the PDF and keep your own copy before you close the page.