Proforma Invoice vs Quote: What a Proforma Is Really For

A client asks for "an invoice so we can pay the deposit". You haven't done the work yet — and if you send a real invoice, you've just recorded revenue you haven't earned and created a tax document before anything happened. The tool for this moment is the proforma invoice: a quote dressed in an invoice's clothes. Plenty of small businesses stumble over when to use one, so here's a plain-English walkthrough.

Quote, proforma, invoice — where they differ

• A quote (or estimate) is a price proposal. It can be a simple email, has no fixed layout, and carries no billing weight.
• A proforma invoice is that same proposal, but formatted like the final invoice you'll issue — with your details, item lines, quantities, payment terms and a total. It's what procurement teams and banks recognise.
• A (commercial) invoice is issued after you've delivered or shipped, and it's the document your accounts and tax records are built on.

The proforma sits in the middle: it looks official enough to push a decision forward, but it isn't your final bill.

The situations where a proforma earns its keep

• Deposits and prepayments — you need 50% upfront before starting; the proforma tells the client exactly what that 50% covers.
• Client purchase approvals — many larger clients can't pay from an email quote; their finance team wants a numbered document to approve against.
• International orders — banks and some import processes ask for a proforma so the buyer can arrange payment or open a letter of credit before goods ship.
• Project kickoffs — a defined scope with itemised pricing and a validity date protects you when costs or scope drift later.

One habit that saves headaches: put an expiry date on it. Prices you quoted in January shouldn't silently bind you in July, and a stated validity period ("valid for 30 days") makes that conversation easy instead of awkward.

A few things to keep off the proforma

Don't number it in your invoice sequence, and don't let it imply tax has been charged on a sale that hasn't happened — a proforma is generally not treated as a tax invoice, but how that works can depend on your country and your accounting setup, so if you're unsure, it's a five-minute check with your accountant rather than a guess. Where a deposit is involved, say so on the document: "50% deposit due before work starts, balance on delivery" is clearer than leaving the reader to wonder.

How to create yours with SleekKitBox

1. Open the Proforma Invoice template.
2. Fill in your details, the client, your quote number and a validity date, then add the item lines.
3. Set the deposit percentage in the notes so the payment expectation is written down.
4. Download the PDF and send it. When the work is done, issue the real invoice — SleekKitBox has invoice templates for that step too.

Keeping quotes and final invoices as separate documents with separate numbering sounds like bookkeeping pedantry until your accountant asks where a payment came from — at which point it's suddenly very practical.

Frequently asked questions

Is a proforma invoice legally binding? It's a quotation presented in invoice format, not a demand for payment. It becomes relevant once the client accepts your terms and you issue the real invoice — treat it as part of your agreement trail.

Do I charge tax on a proforma? You don't collect payment with it, and it usually isn't a tax document — but tax treatment differs by country, so confirm how your jurisdiction treats proformas before you put a tax line on one.

Can I send a proforma instead of a commercial invoice for shipping? Some importers use proformas early in a shipment process, but customs clearance normally needs the commercial invoice. Use the proforma to start the deal and the real invoice to close it.

👉 Prepare your pricing: free Proforma Invoice template →