Proforma Invoice (PI)

A Proforma Invoice (PI) is a preliminary bill of sale sent to a buyer by a seller in advance of a shipment or delivery of goods. It provides a detailed breakdown of what the seller intends to supply, the price, the shipping terms, and the payment conditions.

Unlike a standard commercial invoice—which acts as a final request for payment after goods are shipped—the Proforma Invoice serves as an official offer that outlines the commitment between the buyer and seller before the transaction is finalized.

Why Is a Proforma Invoice Necessary?

The PI is the "blue-print" of your import transaction. It is vital for several administrative and legal reasons:

1. Transactional Alignment: It ensures both the buyer and seller agree on specifications, prices, and Incoterms before money is wired or production begins.
2. Trade Finance: Most banks require a copy of the signed Proforma Invoice to process a Letter of Credit (L/C) or to register a large T/T transfer with foreign exchange regulators.
3. Import Licensing: In many countries, customs authorities require a Proforma Invoice to issue an import license or to determine the estimated duties and taxes for the incoming shipment.
4. Order Commitment: It serves as the formal "order acknowledgement" when the buyer signs it, indicating their intent to proceed.

What Should a Professional PI Include?

A Proforma Invoice should be as detailed as possible to prevent disputes during customs clearance or upon delivery:

• Header Information: "Proforma Invoice" clearly marked, unique PI number, and the date of issue.
• Buyer & Seller Details: Full registered company names, addresses, and contact info (including VAT or tax ID numbers if required).
• Detailed Description: SKU numbers, product names, dimensions, materials, and HS codes (Harmonized System codes) for customs.
• Quantity & Pricing: Unit price, total quantity, and the currency (e.g., USD, EUR).
• Shipping & Logistics: The agreed Incoterms® 2020 (e.g., FOB, DAP) and the estimated shipping date.
• Payment Terms: Clearly stated instructions (e.g., "30% Deposit, 70% before shipment").
• Banking Details: Official bank account information (Beneficiary name, SWIFT/BIC, IBAN/Account number).

PI vs. Purchase Order (PO): The Relationship

In a standard B2B trade flow, these two documents work in tandem:

• PO (Buyer's Document): The buyer initiates the process by sending a Purchase Order, which acts as their offer to purchase.
• PI (Seller's Document): The seller reviews the PO and issues a Proforma Invoice, which acts as their acceptance of the order under specific terms.

Pro Tip: If the PI deviates from your original PO, you must review those changes carefully. If you sign and return the PI, you are legally accepting those updated terms (such as a different delivery date or shipping cost).

Essential Considerations & Warnings

• Check the Banking Details: Fraudsters often intercept PI documents to swap bank account numbers. If you receive a PI with banking details that differ from previous transactions, always verify via phone call before sending funds.
• Expiration Dates: Many Proforma Invoices have an expiration date (e.g., "Valid for 30 days"). Prices for raw materials change rapidly; if you delay your order, the seller may revise the pricing.
• Customs Discrepancies: Ensure the description on the PI matches exactly what will be on the final Commercial Invoice and Packing List. If the PI says "500 units" but the final invoice says "450 units," customs may flag your shipment for an inspection, causing costly delays.