What Is a Proforma Invoice and When Should You Use One?
A proforma invoice is not a demand for payment — it is a preview. Learn when and how to use proforma invoices for quotes, customs, and advance billing.
Proforma Invoice: Definition
A proforma invoice is a preliminary document sent to a buyer before goods are delivered or services are rendered. Unlike a standard invoice, it is not a demand for payment. Instead, it functions as a detailed quotation, a customs declaration document, or a formal commitment to supply goods at a specified price.
Think of it as a "preview invoice" — it shows exactly what the final invoice will look like, but without the legal obligation to pay immediately.
Proforma Invoice vs. Standard Invoice vs. Quote
| Document | Purpose | Legally binding? | Payment expected? |
|---|---|---|---|
| Quote / Estimate | Informal price indication | No | No |
| Proforma Invoice | Formal price commitment; customs documentation | Partially (price commitment) | Sometimes (advance payment) |
| Standard Invoice | Demand for payment after delivery | Yes | Yes |
When to Use a Proforma Invoice
International Trade and Customs
Proforma invoices are widely used in international trade. Customs authorities require them to assess import duties and taxes before goods cross borders. The document typically includes product descriptions, HS (Harmonized System) codes, quantities, unit prices, shipping terms (such as FOB or CIF), and country of origin.
Advance Payment Requests
When you need a deposit or full payment before starting work or shipping goods, a proforma invoice formalises the request. The buyer reviews the proforma, approves the terms, and submits payment. Once payment is received, you issue a standard invoice and proceed with delivery.
Internal Client Approvals
Large organisations often require a proforma invoice to secure internal budget approval before committing to a purchase. The buyer's finance team reviews the proforma and authorises the spend, after which you issue the final invoice.
Price Guarantees
A proforma locks in a price for a specified period. This is useful when exchange rates fluctuate, material costs are volatile, or you want to give the client confidence that the final bill will match the estimate.
What to Include on a Proforma Invoice
- "Proforma Invoice" label. Mark it clearly to distinguish it from a standard invoice.
- Seller and buyer details. Full names, addresses, and contact information.
- Itemised list. Product or service descriptions, quantities, unit prices, and line totals.
- Total amount and currency. Specify the currency to avoid confusion, especially in cross-border transactions.
- Shipping terms and costs. Include Incoterms (FOB, CIF, etc.) and estimated delivery timelines for physical goods.
- Validity period. State how long the proforma pricing is valid — typically 15 to 30 days.
- Payment instructions. If advance payment is expected, include bank details or payment links.
Create a Proforma Invoice for Free
Use the free proforma invoice template in Blank Invoice Maker. Fill in your details, add line items, and download a professional PDF — no sign-up, no watermark, and your data stays in your browser.