A quote is a price offer before the sale, an invoice is the formal request for payment once you sell, and a receipt is proof that you were paid. They go out in that order: a quote when the client asks, a receipt whenever they pay (deposits included) and an invoice when the sale closes. Where your country requires tax invoices, those must come from an approved system.
Mixing them up causes trouble: clients who think a quote is a bill, deposits with no proof, or "invoices" made in Word that tax authorities do not accept. Here are the differences in one table, the right order and a complete example.
What is the difference between a quote, an invoice and a receipt?
| Quote | Invoice | Receipt | |
|---|---|---|---|
| What it is | A price offer | A formal request for payment | Proof of payment |
| When | Before the sale | When the sale closes | Every time you get paid |
| Creates a debt | No | Yes | Already paid |
| Has an expiry | Yes | No (has a due date) | No |
| Tax document | No | Yes, if your country requires it | Supporting record |
What is a quote and what goes in it?
A quote says "this is what I'll deliver, this is the price, valid until this date". It commits the client to nothing until they accept. Here is how to write a quote clients accept. Include your details, a number, date and expiry, line items with quantities and prices, tax if you charge it, and payment terms.
What is an invoice and when is it required?
An invoice formally requests payment for a sale, with a due date. Rules depend on the country: some require electronic tax invoices from approved systems, others accept any invoice with the required fields. In the United States, the IRS recordkeeping guide lists invoices and receipts among the documents a small business should keep. Check with your accountant what applies to you.
What is a receipt and why does it matter?
A receipt proves that someone paid you: how much, when, for what and how. It is the document people forget most, and the one that prevents the most arguments. Use it to:
- Confirm a deposit ("Received $150 as a 50% deposit on quote Q-0031").
- Close cash payments, which leave no bank trail.
- Keep your own record of what you collected each month.
In what order do you send them? A full example
A product photographer gets a message from a shop that needs catalog photos:
- Quote Q-0031: 20 products on white background with editing, $300, valid for 15 days, 50% deposit.
- Receipt R-0018: the shop accepts and pays $150. The photographer sends the deposit receipt the same day.
- Delivery: edited photos sent on the agreed date.
- Invoice and final receipt: the shop pays the remaining $150. The photographer issues the invoice for $300, marked as paid, and a receipt for the balance.
Each document references the previous one by number, so any question two months later takes a minute to answer.
Common mistakes
- Taking a deposit without a receipt. If the project falls through, nobody remembers what was paid.
- Calling a quote an invoice. The client may think they already owe you.
- One numbering sequence for everything. Use prefixes: Q, INV, R.
- Assuming a Word invoice is a valid tax invoice. In countries with e-invoicing, only the approved system counts.
- Not keeping copies. Save every document as a PDF, filed by month.
Frequently asked questions
Not by itself. A quote is an offer. It becomes an obligation once the client accepts it and you agree on payment or issue the invoice.
Usually not. A receipt proves a payment, but where tax invoices are required, the invoice is the document that counts for taxes.
Yes, always. A deposit receipt that references the quote number prevents disputes if the project changes or is cancelled.
Yes. Send them as PDFs with your logo, not as plain text, so the client can save and forward them. Cotiza Fácil creates and shares them on WhatsApp.
Wrapping up
Three documents, three moments: a quote before, a receipt when you are paid and an invoice when the sale closes. Use them in that order with their own numbering and clients will see a business that has its act together.
Start today: open Cotiza Fácil and make your first quote or receipt as a PDF for free. Cotiza Fácil Pro (USD 15 a month) gives you unlimited PDFs with no watermark and your brand color.
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