# Pro Forma Invoice: What It Is, How It Differs From a Commercial Invoice, and When to Use One Published: 2026-03-30 Author: Warren Team URL: https://www.heywarren.com/blog/pro-forma-invoice --- A pro forma invoice is sent before the sale is final, it's a preliminary document that describes the terms of a proposed transaction. Confuse it with a commercial invoice (the binding demand for payment) and you risk customs problems, accounting confusion, or payment disputes. Here's exactly what each is and when to use them. ## What Is a Pro Forma Invoice? A pro forma invoice is a **preliminary bill of sale** sent to a buyer before a transaction is finalized or before goods are shipped. It describes the proposed transaction in detail, items, quantities, prices, terms, but is not a demand for payment and does not create a financial obligation. ![A pro forma invoice precedes the commercial invoice in the transaction lifecycle, from initial proposal through to binding payment demand.](data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20875%20125%22%20width%3D%22875%22%20height%3D%22125%22%20role%3D%22img%22%3E%3Ctitle%3EFlow%20diagram%3C%2Ftitle%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22%23f8fafc%22%2F%3E%3Crect%20x%3D%2230%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22115%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EPro%20Forma%3C%2Ftext%3E%3Ctext%20x%3D%22115%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3EPreliminary%20terms%3C%2Ftext%3E%3Cline%20x1%3D%22205%22%20y1%3D%2262.5%22%20x2%3D%22237%22%20y2%3D%2262.5%22%20stroke%3D%22%2364748b%22%20stroke-width%3D%222%22%2F%3E%3Cpolygon%20points%3D%22244%2C62.5%20235%2C57.5%20235%2C67.5%22%20fill%3D%22%2364748b%22%2F%3E%3Crect%20x%3D%22245%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22330%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EBuyer%20Approves%3C%2Ftext%3E%3Ctext%20x%3D%22330%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3EInternal%20sign-off%3C%2Ftext%3E%3Cline%20x1%3D%22420%22%20y1%3D%2262.5%22%20x2%3D%22452%22%20y2%3D%2262.5%22%20stroke%3D%22%2364748b%22%20stroke-width%3D%222%22%2F%3E%3Cpolygon%20points%3D%22459%2C62.5%20450%2C57.5%20450%2C67.5%22%20fill%3D%22%2364748b%22%2F%3E%3Crect%20x%3D%22460%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22545%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EGoods%20Shipped%3C%2Ftext%3E%3Ctext%20x%3D%22545%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3ETransaction%20confirmed%3C%2Ftext%3E%3Cline%20x1%3D%22635%22%20y1%3D%2262.5%22%20x2%3D%22667%22%20y2%3D%2262.5%22%20stroke%3D%22%2364748b%22%20stroke-width%3D%222%22%2F%3E%3Cpolygon%20points%3D%22674%2C62.5%20665%2C57.5%20665%2C67.5%22%20fill%3D%22%2364748b%22%2F%3E%3Crect%20x%3D%22675%22%20y%3D%2225%22%20width%3D%22170%22%20height%3D%2275%22%20rx%3D%2210%22%20fill%3D%22white%22%20stroke%3D%22%232563eb%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22760%22%20y%3D%2258.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ECommercial%20Invoice%3C%2Ftext%3E%3Ctext%20x%3D%22760%22%20y%3D%2278.5%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2211%22%20fill%3D%22%2364748b%22%3EPayment%20demand%3C%2Ftext%3E%3C%2Fsvg%3E) *A pro forma invoice precedes the commercial invoice in the transaction lifecycle, from initial proposal through to binding payment demand.* "Pro forma" means "as a matter of form" in Latin, it's a document prepared as if the transaction were complete, for informational, planning, or approval purposes. A pro forma invoice: - Is **not** a tax document - Does **not** record a completed sale - Is **not** entered in [accounts receivable](/blog/accounts-receivable) - Creates **no legal payment obligation** ## Why Pro Forma Invoices Are Used ### 1. International Trade: Customs and Import Documentation ![The four primary contexts where a pro forma invoice is required before a transaction is finalized.](data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20760%20211%22%20width%3D%22760%22%20height%3D%22211%22%20role%3D%22img%22%3E%3Ctitle%3EHierarchy%3C%2Ftitle%3E%3Crect%20width%3D%22100%25%22%20height%3D%22100%25%22%20fill%3D%22%23f8fafc%22%2F%3E%3Crect%20x%3D%22300%22%20y%3D%2220%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22%232563eb%22%2F%3E%3Ctext%20x%3D%22380%22%20y%3D%2254%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2214%22%20font-weight%3D%22700%22%20fill%3D%22white%22%3EPro%20Forma%20Invoice%3C%2Ftext%3E%3Cpath%20d%3D%22M%20380%2078%20L%20380%20105.5%20L%20110%20105.5%20L%20110%20133%22%20stroke%3D%22%23cbd5e1%22%20stroke-width%3D%222%22%20fill%3D%22none%22%2F%3E%3Crect%20x%3D%2230%22%20y%3D%22133%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22white%22%20stroke%3D%22%230891b2%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22110%22%20y%3D%22158%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2213%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ECustoms%20Pre-clearance%3C%2Ftext%3E%3Ctext%20x%3D%22110%22%20y%3D%22176%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2210%22%20fill%3D%22%2364748b%22%3EDuties%20%26amp%3B%20permits%3C%2Ftext%3E%3Cpath%20d%3D%22M%20380%2078%20L%20380%20105.5%20L%20290%20105.5%20L%20290%20133%22%20stroke%3D%22%23cbd5e1%22%20stroke-width%3D%222%22%20fill%3D%22none%22%2F%3E%3Crect%20x%3D%22210%22%20y%3D%22133%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22white%22%20stroke%3D%22%230891b2%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22290%22%20y%3D%22158%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2213%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ELetter%20of%20Credit%3C%2Ftext%3E%3Ctext%20x%3D%22290%22%20y%3D%22176%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2210%22%20fill%3D%22%2364748b%22%3EBank%20approval%3C%2Ftext%3E%3Cpath%20d%3D%22M%20380%2078%20L%20380%20105.5%20L%20470%20105.5%20L%20470%20133%22%20stroke%3D%22%23cbd5e1%22%20stroke-width%3D%222%22%20fill%3D%22none%22%2F%3E%3Crect%20x%3D%22390%22%20y%3D%22133%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22white%22%20stroke%3D%22%230891b2%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22470%22%20y%3D%22158%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2213%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3EBuyer%20Approval%3C%2Ftext%3E%3Ctext%20x%3D%22470%22%20y%3D%22176%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2210%22%20fill%3D%22%2364748b%22%3EBudget%20sign-off%3C%2Ftext%3E%3Cpath%20d%3D%22M%20380%2078%20L%20380%20105.5%20L%20650%20105.5%20L%20650%20133%22%20stroke%3D%22%23cbd5e1%22%20stroke-width%3D%222%22%20fill%3D%22none%22%2F%3E%3Crect%20x%3D%22570%22%20y%3D%22133%22%20width%3D%22160%22%20height%3D%2258%22%20rx%3D%228%22%20fill%3D%22white%22%20stroke%3D%22%230891b2%22%20stroke-width%3D%222%22%2F%3E%3Ctext%20x%3D%22650%22%20y%3D%22158%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2213%22%20font-weight%3D%22600%22%20fill%3D%22%230f172a%22%3ESample%20Shipments%3C%2Ftext%3E%3Ctext%20x%3D%22650%22%20y%3D%22176%22%20text-anchor%3D%22middle%22%20font-family%3D%22system-ui%2C-apple-system%2Csans-serif%22%20font-size%3D%2210%22%20fill%3D%22%2364748b%22%3ENominal%20customs%20value%3C%2Ftext%3E%3C%2Fsvg%3E) *The four primary contexts where a pro forma invoice is required before a transaction is finalized.* In cross-border trade, customs authorities in many countries require a pro forma invoice before goods are shipped to: - Assess import duties and taxes - Determine whether import licenses or permits are needed - Calculate the bonded amount for shipments being held temporarily The importer needs to know what's coming, at what value, before committing to the importation. ### 2. Letters of Credit When a transaction is financed by a letter of credit (LC), the buyer's bank needs to review and approve the terms before issuing the LC. The pro forma invoice provides the detailed specification that the bank uses to verify the transaction meets LC conditions. ### 3. Buyer Approval Process Large organizations often require internal approval before committing to a purchase. Procurement, finance, and management teams review the pro forma invoice to approve budget allocation before the seller commits to production or shipment. ### 4. Quotation and Price Confirmation In some industries, a pro forma invoice serves as a formal, detailed quotation, more structured than a quote letter, specifying all commercial terms (price, payment terms, delivery, insurance, warranty). ### 5. Proforma for Samples Sending samples internationally often requires a pro forma invoice at a nominal value for customs purposes, even though no payment will be made. ## What a Pro Forma Invoice Includes A well-structured pro forma invoice includes: | Field | Content | |---|---| | Document header | "PRO FORMA INVOICE", clearly labeled to distinguish from commercial invoice | | Seller information | Company name, address, contact, tax ID | | Buyer information | Same for the buyer | | Pro forma invoice number | Reference number (NOT the commercial invoice number) | | Date | Date of pro forma | | Validity | "Valid for 30 days", prices are not guaranteed indefinitely | | Description | Detailed product/service description | | Quantity | Units being proposed | | Unit price | Price per unit | | Total amount | Total transaction value | | Currency | Which currency | | Incoterms | Who bears freight/insurance/customs costs (FOB, CIF, DDP, etc.) | | Delivery terms | Expected ship date, [lead time](/blog/what-is-a-lead-time) | | Payment terms | Net 30, 50% advance / 50% on delivery, letter of credit, etc. | | Country of origin | Required for customs | | HS code | Harmonized System commodity code for customs classification | ## Pro Forma Invoice vs. Commercial Invoice | Feature | Pro Forma Invoice | Commercial Invoice | |---|---|---| | Timing | Before transaction confirmed/shipped | After delivery, demand for payment | | Legal status | Non-binding preliminary document | Legally binding payment demand | | Accounting entry | No entry | Debit AR / Credit Revenue | | Tax document | No | Yes (VAT, sales tax applicable) | | Payment trigger | No | Yes | | Customs use | Pre-import planning, LC | Official customs clearance document | | Accounts receivable | Not recorded | Recorded | **Critical mistake to avoid**: In some countries and situations, sending a pro forma invoice as if it were a commercial invoice can create incorrect tax reporting, or using a commercial invoice as a "pro forma" can trigger premature VAT/GST liability. ## Pro Forma Invoice vs. Quote A quotation (or price quote) is even more preliminary than a pro forma invoice: - A quote provides pricing; a pro forma invoice specifies complete commercial terms - A pro forma invoice is typically more formal and closer to the final commercial invoice format - Pro formas are often required by banks and customs authorities; quotes are purely internal buyer tools In practice, many businesses use these terms interchangeably, but in international trade and banking contexts, "pro forma invoice" has specific meaning as a formal document satisfying specific requirements. ## Pro Forma Financial Statements (Different Context) Note that "pro forma" is also used in a completely different financial context: **pro forma financial statements** are projections of a company's financials under hypothetical assumptions, typically used in: - **M&A transactions**: "Pro forma" combined financials showing what the merged company would look like - **IPO filings**: Historical financials adjusted to reflect the company's post-IPO structure - **Business planning**: Projected income statements and cash flows These pro forma financial statements have no relationship to pro forma invoices, the word "pro forma" simply indicates that the figures are preliminary, conditional, or hypothetical rather than actual historical results. ## International Trade Pro Forma Best Practices 1. **Clearly label "PRO FORMA INVOICE"**: Make it unambiguous this is not a demand for payment 2. **Include validity period**: Prices may change; protect yourself with an expiration date 3. **Use correct Incoterms (2020)**: Specify clearly who bears freight, insurance, and customs costs, ambiguity creates disputes 4. **Include full HS codes**: Required for accurate customs classification in most countries 5. **State the purpose**: "For Letter of Credit purposes" or "For customs pre-clearance" as appropriate 6. **Currency clarity**: State the currency explicitly (USD, EUR, GBP) to avoid confusion ## Authoritative Sources For deeper background and primary-source data on this topic, the following authoritative sources are useful starting points: - [IRS](https://www.irs.gov/) - [SEC](https://www.sec.gov/) ## Conclusion A pro forma invoice is a preliminary commercial document that describes a proposed transaction without creating a legal payment obligation. Its primary uses are in international trade (customs pre-clearance, letter of credit applications), buyer approval processes, and formal quotation. Understanding the difference between pro forma and commercial invoices prevents accounting errors, customs issues, and payment disputes. For related trade and finance documentation topics, see our guides on [FCA delivery terms](/blog/fca-delivery-term), [FOB shipping point](/blog/fob-shipping-points), and [what is distributable net income](/blog/what-is-distributable-net-income). Warren at [heywarren.com](https://heywarren.com) helps businesses and investors understand the financial mechanics behind complex transactions and trade structures. --- ## Related Reading **More from Warren**: - [Bills Payable: Definition, Examples, and How They Differ From Accounts Payable](/blog/bills-payable) - [Accounts Receivable: What It Is, How It Works, and Why It Matters](/blog/accounts-receivable) - [Accrual Accounting vs. Cash Accounting: Key Differences and When Each Is Used](/blog/accrual-vs-cash-accounting) **Authoritative sources**: - [FASB, Accounting Standards Codification](https://asc.fasb.org/) - [AICPA, Financial Reporting](https://www.aicpa-cima.com/topic/audit-assurance/financial-reporting) - [SEC EDGAR, Company Filings](https://www.sec.gov/edgar/searchedgar/companysearch)