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A proforma invoice is a document that shows you a detailed offer for goods or services before you make a payment. When you ask, “what is a proforma invoice?” you learn that it acts as a pro forma estimate, not a final bill. Many businesses use a proforma invoice to give you a good faith offer, help you align expectations, and start negotiations.

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You may wonder, what is a proforma invoice and why do businesses use it? The term pro forma comes from Latin and means “as a matter of form” or “for the sake of form.” In business, you see pro forma used for documents that serve as formalities or to meet basic requirements. When you receive a proforma invoice, you get a document that acts as a courtesy or a formality. It helps you understand the details of a possible deal before you make any payment or commitment.
A proforma invoice is not a final bill. Instead, you get a preliminary invoice that outlines the estimated costs, terms, and important details of a transaction. This document shows you what to expect if you decide to move forward. You can use it to review the offer, ask questions, or negotiate changes. The proforma invoice gives you a clear picture of the goods or services, prices, and terms before you agree to anything.
Note: The proforma invoice does not create a legal obligation for you or the seller. It serves as a good faith estimate and helps both sides avoid misunderstandings.
When you look at a proforma invoice, you notice several features that set it apart from other types of invoices. Here are the main points that answer the question, what is a proforma invoice and how does it work:
You can compare a proforma invoice to a commercial invoice using the table below:
| Aspect | Pro Forma Invoice | Commercial Invoice |
|---|---|---|
| Timing | Issued before transaction is finalized | Issued after goods/services are delivered |
| Purpose | Quotation or offer, non-binding | Formal request for payment, legally binding |
| Legal Status | Not a legal claim for funds | Used in financial reporting and tax documentation |
A proforma invoice helps you understand the full details of a possible transaction. You can use it to check the offer, ask for changes, or prepare for customs if you are involved in international trade. The proforma invoice gives you time to review everything before you make a final decision.
If you ever ask, what is a proforma invoice, remember that it is a preliminary invoice. It helps you and the seller communicate clearly and avoid surprises. You do not have to pay based on this document, but you can use it to plan, negotiate, and make sure you agree with all the terms before you move forward.

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You may see both a proforma invoice and a commercial invoice in business, but they serve different roles. A pro forma invoice gives you an estimate before you agree to a sale. You use it to review costs, plan your budget, and negotiate terms. The commercial invoice comes after you finalize the sale and receive the goods or services. Customs agents use the commercial invoice to check shipment details and calculate duties and taxes. You cannot use a proforma invoice for customs clearance, but it helps you prepare for the process.
Here are some key points about the difference between proforma invoices and regular invoices like the commercial invoice:
A sales invoice is another type of regular invoice you will encounter. You receive a sales invoice after you get the goods or services. This document requests payment and serves as proof of the completed transaction. The sales invoice is legally binding and used for accounting and tax reporting. In contrast, a pro forma invoice only provides an estimate and does not demand payment. You use the proforma invoice to understand the offer and decide if you want to move forward.
You can see the main differences between a proforma invoice, a commercial invoice, and a sales invoice in the table below:
| Invoice Type | Purpose & Timing | Legal Status | Payment Requirement | Use in Accounting & Tax |
|---|---|---|---|---|
| Proforma Invoice | Estimate before sale; helps with planning and negotiation | Not legally binding | No payment required | Not used for tax or records |
| Commercial Invoice | Issued after sale; official record for customs and payment | Legally binding | Payment required | Used for tax and accounting |
| Sales Invoice | Sent after delivery; requests payment for goods or services | Legally binding | Payment required | Used for tax and accounting |
| Regular Invoice | Final bill for payment after sale or delivery | Legally binding | Payment required | Used for tax and accounting |
Tip: Always check if you have a pro forma invoice or a regular invoice. The difference between proforma invoices and regular invoices affects when you pay and how you record the transaction.
A proforma invoice helps you during the negotiation phase. You can review costs, ask for changes, and plan your next steps. The pro forma document does not create a payment obligation. Once you accept the offer and the seller delivers the goods or services, you receive a regular invoice, such as a sales or commercial invoice, which requires payment and serves as an official record.
You may wonder when to use a proforma invoice in your business. A pro forma document acts as a draft or blueprint for a transaction. You use it before you finalize a sale or shipment. Many businesses use proforma invoices to set clear expectations and avoid confusion. Here are some common reasons you might need a proforma invoice:
Note: A proforma invoice is not a final bill. It does not create a legal obligation to pay. You use it as a tool to plan, negotiate, and prepare for the next steps.
You see proforma invoice use case examples in many industries. Here are some situations where businesses use proforma invoices:
Here is a table that shows how you might use a proforma invoice in different situations:
| Scenario | Proforma Invoice Used For |
|---|---|
| Importing goods to the US | Customs clearance, duty calculation, regulatory compliance |
| Exporting machinery to China | Export control, licensing, customs documentation |
| Buying seafood from a supplier | Cost estimate, negotiation, internal approval |
| Applying for trade financing | Proof of transaction details for banks and insurers |
| Planning a large shipment | Logistics coordination, pre-shipment documentation |
A pro forma invoice helps you in each of these cases by providing a clear, non-binding summary of the transaction. You can review the details, make changes, and avoid misunderstandings before you commit.
You gain many benefits when you use a proforma invoice:
However, you should also know the limitations:
Tip: Always check the details on your proforma invoice. Make sure you update it if anything changes before you finalize the sale.
When to use a proforma invoice depends on your needs. You use it to plan, negotiate, and prepare for a transaction. Businesses use proforma invoices to support international trade, secure financing, and ensure smooth customs clearance. The pro forma document gives you flexibility and clarity, but you must remember its non-binding nature. By understanding each proforma invoice use case, you can avoid common mistakes and keep your business running smoothly.
When you create a proforma invoice, you need to include certain key details. These details help you and your buyer understand the offer and avoid confusion. International standards guide what you should add to your pro forma. Here is a list of the most important fields:
Note: Always check your calculations and proofread your proforma invoice. This helps you avoid mistakes and keeps your business professional.
You can use a proforma invoice template to make your work easier. Many accounting software providers let you customize templates with your logo and company colors. This saves you time and reduces errors. Here is a simple proforma invoice sample you can follow:
Proforma Invoice
Invoice Number: PI-2024-001
Date of Issue: 2024-06-15
Validity: 30 days
Seller:
ABC Trading Ltd.
123 Main Street, Hong Kong
Phone: +852 1234 5678
Email: info@abctrading.com
Buyer:
XYZ Imports
456 Market Road, New York, USA
Phone: +1 212 555 7890
Email: orders@xyzimports.com
Description of Goods/Services:
1. Stainless Steel Bolts (HS Code: 731815) - 1,000 pcs x $0.50 = $500.00
2. Shipping Fee (Air Freight) = $120.00
Subtotal: $620.00
Discount: $20.00
Total Amount Due: $600.00 USD
Payment Terms: Bank transfer to Hong Kong bank, due within 15 days.
Estimated Delivery Date: 2024-07-01
Shipping Address: 456 Market Road, New York, USA
Notes: Prices exclude VAT. Offer valid for 30 days.
You can find more proforma invoice samples online or use software to generate them. Digital pro forma invoices help you work faster, reduce errors, and keep your records safe. Many companies now use electronic invoices to save time and money.
A proforma invoice gives you a clear, upfront summary of costs, terms, and expectations before you commit to a sale. You benefit from improved trust, faster approvals, and fewer misunderstandings. Use a proforma invoice when you want to negotiate, plan, or support international trade.
Consider reviewing your invoicing process. Standardizing templates and using software can help you avoid common mistakes, streamline your workflow, and build stronger business relationships.
You use a proforma invoice to see the details of a possible sale before you agree. It helps you review prices, terms, and products. You can ask questions or make changes before you accept the offer.
You cannot use a proforma invoice for final customs clearance. Customs agents need a commercial invoice for official processing. You can use a proforma invoice to prepare documents and estimate duties before shipping.
A proforma invoice does not create a legal obligation. You do not have to pay based on this document. You use it as an estimate or draft to plan and negotiate before the final sale.
You use a proforma invoice to show the value and details of goods before shipping. This helps you apply for import licenses, arrange financing, and prepare customs paperwork. It makes the trade process smoother and clearer.
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*This article is provided for general information purposes and does not constitute legal, tax or other professional advice from BiyaPay or its subsidiaries and its affiliates, and it is not intended as a substitute for obtaining advice from a financial advisor or any other professional.
We make no representations, warranties or warranties, express or implied, as to the accuracy, completeness or timeliness of the contents of this publication.



