All posts
May 7, 2025
9 min
read

What Is a Proforma Invoice? Everything You Need to Know

Understand what a proforma invoice is, how it differs from other invoices, and when to use it in business transactions.

In the world of business transactions, clarity and alignment are key, especially before any goods are delivered or services rendered. That’s where certain types of documents come into play, helping both parties stay on the same page from the outset.

One such document is the proforma invoice, a tool frequently used in a variety of industries, yet often misunderstood or overlooked.

In this guide, we’ll explore what a proforma invoice is, how it differs from other types of invoices, and when it makes sense to use one in your professional workflow.

Key Takeaways:

What Is a Proforma Invoice?

A proforma invoice is a preliminary document provided by a seller before goods are shipped or services are delivered. It outlines key details of a proposed transaction—including item descriptions, pricing, quantities, and payment terms—to ensure both parties are aligned before moving forward.

While it resembles a final invoice in appearance, a proforma invoice is not legally binding and does not function as a request for payment. Instead, it acts as a professional agreement in principle, helping to set expectations and reduce the risk of miscommunication.

For instance, if you're purchasing from a supplier, you might receive a proforma invoice summarizing what will be delivered, how much it will cost, and when to expect shipment. This allows you to confirm the terms before committing to the purchase.

Key characteristics of a proforma invoice include:

Although a proforma invoice isn’t a legal contract, it plays a vital role in the early stages of many business transactions. Always review the details carefully to ensure everything is accurate before proceeding to the final invoice.

Proforma Invoice vs. Commercial Invoice: Key Differences

Understanding the distinction between a proforma invoice and a commercial invoice is essential for ensuring clear communication and avoiding costly mistakes in your business transactions. While they may appear similar, each serves a very different purpose in the sales process.

Category Proforma Invoice Commercial Invoice
Purpose Acts as a formal quote or proposal before a sale is finalized. Serves as the final billing document and request for payment.
Legal Status Not legally binding; used for review and confirmation. Legally binding once accepted; used for accounting and legal purposes.
Content Includes general details (items, pricing, terms, delivery expectations) Includes full, itemized details (product descriptions, unit prices, taxes, totals)
Timing Issued early in the sales process, before goods or services are delivered. Sent after the sale is confirmed and goods/services have been delivered.
Use Case To confirm terms, secure internal approvals, or align with the buyer pre-sale. To finalize the transaction and initiate payment.

Woman using a calculator, looking at invoices.

When Should You Use a Proforma Invoice?

A proforma invoice helps businesses confirm terms before finalizing a deal. While it’s not a payment request, it sets the stage for smooth transactions. Here are some common situations where a proforma invoice is useful:

Example Scenarios:

Situation Action Key Detail
Quoting for bulk orders. Send a proforma invoice. Clarifies terms without requesting payment.
After the delivery of goods. Send a final sales invoice. Includes payment details and invoice number for processing.
Custom project proposals. Send a proforma invoice. Outlines project scope and ensures client approval.

Even though it’s not a final bill, always include an invoice number to track the document and distinguish it from other types, like commercial invoices.

How to Create a Proforma Invoice (Step-by-Step Guide)

Creating a proforma invoice requires attention to detail to ensure clarity and prevent misunderstandings. Follow these steps to craft an effective document that supports both domestic and international transactions.

1. Collect the Necessary Information

39% of invoices contain errors, emphasizing the importance of accurate data collection to minimize disputes and delays.

2. Outline Payment Terms

3. Describe the Goods or Services

4. Review and Send

Create and send accurate proforma invoices in minutes—perfect for international deals and custom orders.
Try Tofu’s invoicing app for free

Essential Elements of a Proforma Invoice

A proforma invoice serves as a vital tool in the early stages of a transaction, helping both parties agree on key terms and conditions before proceeding. To ensure its effectiveness, the document must include precise details that protect both sides and set clear expectations for the deal.

What Information Should a Proforma Invoice Include?

Is a Proforma Invoice Legally Binding?

A proforma invoice is not a legally binding document. While it outlines the terms of a sale, it does not have the authority to enforce payment. Think of it as a proposal that sets expectations but lacks the legal standing of a formal or standard invoice.

Key Differences Between Proforma and Official Invoices

Aspect Proforma Invoice Official Invoice
Legally Binding No Yes (if agreed upon)
Primary Use Quoting terms of sale or securing deposits. Payment collection and tax reporting.
Tax Information Does not include tax details. Includes tax calculations and breakdowns.

While a proforma invoice provides a framework for the transaction, it cannot be used to demand payment. Always pair it with a written agreement for the terms of the sale. Once the terms are finalized, switch to a standard invoice for formal payment requests and legal purposes.

Common Mistakes to Avoid When Using a Proforma Invoice

Creating a proforma invoice requires attention to detail, as even small errors can disrupt transactions and cause legal issues. To ensure smooth deals and avoid complications, be mindful of these common mistakes:

1. Ignoring Shipping Costs

2. Using Outdated Information

3. Omitting Tax Details

4. Vague Terms

Before sending out a proforma invoice, take the time to review all details thoroughly. Accurate invoices help avoid legal penalties, delays, and misunderstandings, ensuring a smoother transaction process for both parties.

How Proforma Invoices Help with International Trade

A proforma invoice plays an important role in facilitating international trade by providing essential details before shipment. It outlines the agreed-upon terms, including product descriptions, prices, and payment conditions, which helps streamline customs clearance.

Key Benefits of Using Proforma Invoices in International Trade:

Sending a proforma invoice before shipment allows the buyer to prepare for financing, permits, and other necessary steps. Properly used, it ensures that international transactions proceed smoothly and meet all regulatory requirements.

Final Thoughts: The Importance of Proforma Invoices in Business

Proforma invoices are essential for clear communication and effective planning in business transactions. They help both parties understand key terms and expectations before finalizing a deal, reducing the risk of misunderstandings. By outlining pricing, quantities, and payment terms, proforma invoices set the stage for a smooth transaction, especially when dealing with international trade or custom orders.

When used correctly, proforma invoices build trust with clients and partners, ensuring that everyone is on the same page. Whether you're quoting, negotiating, or confirming order details, a well-crafted proforma invoice can make all the difference.

To simplify your invoicing and make the process smoother, consider using Tofu. Tofu’s invoicing app lets you:

Ready to take your invoicing to the next level? Download the Tofu Invoicing App today and experience a better way to invoice.

Need a fast, professional way to send proforma invoices? With Tofu, you can generate clean, on-brand invoices from your phone—no PDFs, no delays.
Start creating proforma invoices with Tofu

FAQ

Can a proforma invoice be used for payment?

A proforma invoice is primarily a preliminary document that outlines the details of a transaction, but it can't use a proforma invoice to demand payment. It gives the buyer an overview of expected terms and conditions, but it doesn’t have the legal power of a formal invoice that you would send to request payment.

What is the difference between a proforma invoice and a quotation?

Both a proforma invoice and a quotation give the buyer an estimate of costs, but a proforma invoice is more detailed. It outlines pricing, payment terms, and a total amount due, whereas a quotation may not include the same level of detail or serve as a request for payment.

How long is a proforma invoice valid?

The validity of a proforma invoice depends on the agreement between the buyer and seller. It’s important to specify the duration in the proforma document itself. Typically, business owners set the validity period for 30 to 90 days, depending on the nature of the transaction.

Do proforma invoices include VAT?

A proforma invoice may include VAT or other taxes for tax purposes, depending on the local regulations and the agreement between the parties involved. However, since a proforma invoice is not a request for payment, the inclusion of taxes does not make it a legally binding invoice.

Is a proforma invoice legally binding?

No, a proforma invoice is not legally binding. It’s a preliminary bill that outlines the details of the transaction but lacks the legal standing of a final sales invoice or commercial invoice. An invoice doesn’t require payment until it has been finalized.

When should you use a proforma invoice?

You should use a proforma invoice when providing an early estimate for a transaction, especially in cases like international shipments or custom orders. It sets the stage for the buyer by clearly outlining pricing and terms before the final invoice is sent.

How do proforma invoices help with international trade?

Proforma invoices are essential in international trade because they provide important details about the shipment and the transaction. They are used for customs clearance by helping customs authorities quickly verify the goods being shipped. By listing key details such as product descriptions, quantities, and prices, they reduce the risk of delays at customs.