What Is a Commercial Invoice? A Guide for Exporters & Sellers

If you ship goods across a border, one document sits at the center of the entire customs process: the commercial invoice.

Without it, your shipment stalls at the port. With an inaccurate one, you face delays, fines, or seized goods. Whether you're a small-business owner selling products internationally for the first time or a seasoned exporter, understanding this document is non-negotiable.

This guide covers what a commercial invoice is, every required field, how it differs from a proforma invoice, common mistakes that cost exporters time and money, and how to create one yourself.

What a Commercial Invoice Is

A commercial invoice is the official document that accompanies a shipment of goods across an international border. It serves two jobs at once:

1. Customs declaration — it tells the importing country's customs authority what the goods are, where they came from, and what they're worth, so the agency can classify them, assess applicable duties and taxes, and decide whether to admit the shipment.
2. Sale record — it is the final, legally binding bill of sale between the exporter and the importer, confirming the agreed price, quantity, and terms.

According to the U.S. Customs and Border Protection (CBP), a commercial invoice (or an acceptable substitute) must be submitted with each import entry before goods can be released. For most cross-border shipments of goods with commercial value, this document is mandatory.

A commercial invoice is distinct from the domestic invoices freelancers and service businesses send day-to-day. Those standard invoices request payment. A commercial invoice does that too — but it is also a legal customs declaration carrying regulatory weight.

Required Fields: What Goes on a Commercial Invoice

Customs agencies don't prescribe a single rigid template, but the International Trade Administration outlines the data fields that must be present for U.S. import processing. Miss one and your shipment can be held or returned.

1. Seller / Exporter details Full legal name, address, and contact information of the company or individual shipping the goods.

2. Buyer / Importer details Full legal name, address, and contact information of the party receiving the goods. If there is a separate consignee, include that entity too.

3. Invoice number and date A unique invoice number and the date it was issued. This must match the number on your packing list and any airway bill or bill of lading.

4. Detailed description of goods Not "parts" or "samples" — a precise, specific description of each product: what it is, what it's made of, and what it's used for. Vague descriptions are one of the top reasons shipments are flagged for inspection.

5. Harmonized System (HS) code The internationally recognized numerical code that classifies the product under the Harmonized Tariff Schedule. For U.S. imports, CBP uses the 10-digit Harmonized Tariff Schedule of the United States (HTSUS) code. This code drives the duty rate, so accuracy matters.

6. Quantity and unit of measure Number of units, weight, or volume for each line item — and the unit of measure (e.g., "48 units," "200 kg").

7. Unit price and total value The price per unit and the total value of each line item, plus the invoice total. Specify the currency (USD, EUR, etc.). This declared value is what customs uses to calculate duties. Undervaluing goods is customs fraud.

8. Country of origin Where the goods were manufactured or substantially transformed — not where they're being shipped from. Country of origin affects duty rates and determines whether preferential trade agreement rates (like those under USMCA) apply.

9. Incoterms / Terms of sale The agreed delivery term from the ICC Incoterms rules — such as FOB (Free on Board), CIF (Cost, Insurance, and Freight), or DDP (Delivered Duty Paid). This tells customs which party is responsible for freight, insurance, and duties, and it affects how the customs value of the goods is calculated.

10. Shipping details Port of loading, port of destination, carrier or vessel name, and any relevant shipment reference numbers.

11. Payment terms How and when payment is due (e.g., Net 30, advance payment, letter of credit). These are part of the contractual record.

12. Signature Many countries require a signed commercial invoice. The exporter's authorized representative should sign and, where required, print their title.

Quick-reference field checklist

Commercial Invoice vs. Proforma Invoice

These two documents look similar on paper and are both used in international trade — but they serve very different purposes.

Think of the proforma as a preview and the commercial invoice as the final version. If a buyer asks "how much will this cost and what are the terms?" before committing to an order, you send a proforma. Once the goods are packed and shipped, you send the commercial invoice.

For a deeper look at how proforma invoices work and when to use them, see our guide to what is a proforma invoice.

When Is a Commercial Invoice Required?

A commercial invoice is required any time goods with commercial value cross an international border. Practically speaking, you need one when:

• You are exporting goods from the US to another country
• You are importing goods into the US from another country
• A freight carrier, customs broker, or freight forwarder requests it to process your shipment
• Your buyer needs it to clear goods through their country's customs

Low-value shipments (gifts between individuals, personal effects, certain samples below de minimis thresholds) may sometimes move with less documentation, but the moment commercial activity is involved, the commercial invoice is expected.

If you ship internationally through a carrier like FedEx, UPS, or DHL, their platform will prompt you for the information that goes on a commercial invoice and generate the form. However, the accuracy of every field is your responsibility — not the carrier's.

Who Prepares the Commercial Invoice?

The seller / exporter prepares the commercial invoice. It's your document: you know what you're selling, what it cost to produce, where it was made, and what the sale terms are.

In practice, your workflow looks like this:

1. The buyer places an order and you agree on price, quantity, and terms.
2. You (or your logistics team) prepare the commercial invoice before or at the time of shipment.
3. You provide the commercial invoice to your freight forwarder or courier, who submits it as part of the customs entry.
4. The importer's customs broker may also need a copy to file the entry on the importing side.

If you use a freight forwarder or customs broker, they can advise on the specific requirements of the destination country — but the data has to come from you.

How Customs Uses a Commercial Invoice

When a shipment arrives at the port of entry, a customs officer (or an automated system) uses the commercial invoice to:

1. Classify the goods using the HS/HTSUS code to find the applicable duty rate.
2. Determine customs value — typically the transaction value (the price actually paid), adjusted for freight and insurance based on the declared Incoterm.
3. Verify country of origin to determine if preferential tariff treatment (e.g., USMCA zero-rate) applies or if any trade restrictions apply.
4. Assess duties and fees owed before release.
5. Check admissibility — some goods require licenses, permits, or certificates; the description on the invoice helps flag whether additional review is needed.

The customs value calculated from your commercial invoice directly determines how much duty the importer pays. Accurate values protect the importer from overpaying duties and protect both parties from potential fraud investigations.

Worked Example: Exporting Ceramic Mugs to Canada

Imagine you run a small ceramics business in Oregon and you've sold 200 handmade mugs to a retailer in Toronto for $12 each — $2,400 total — shipped under FOB Portland terms.

Your commercial invoice would include:

• Seller: Your business name, Portland, OR address, phone
• Buyer / Consignee: The Toronto retailer's full name and address
• Invoice number: A unique reference (e.g., INV-2026-041)
• Date: The ship date
• Description: "Handmade stoneware ceramic mugs, 12 oz capacity, for table use"
• HS code: 6912.00 (ceramic tableware)
• Quantity: 200 units
• Unit price: USD 12.00
• Total value: USD 2,400.00
• Country of origin: United States
• Incoterms: FOB Portland, OR
• Shipping details: Carrier name, estimated departure port

The Canadian Border Services Agency receives this invoice, applies the appropriate CBSA tariff rate to the $2,400 declared value, and determines the duty owed before the mugs are released to the buyer.

Worked Example: Importing Electronic Components from Taiwan

Your company sources circuit boards from a supplier in Taipei. The supplier ships 500 units at $18 each under CIF Los Angeles terms.

The commercial invoice the supplier sends must include:

• Seller: The Taiwanese supplier's full details
• Buyer: Your company's US address (and your importer of record information if applicable)
• Description: "Printed circuit boards, FR-4 substrate, 4-layer, for consumer electronics assembly"
• HS / HTSUS code: 8534.00.0020 (or applicable 10-digit code)
• Quantity: 500 units
• Unit price: USD 18.00 per unit; total USD 9,000.00
• Country of origin: Taiwan
• Incoterms: CIF Los Angeles (meaning the seller covers freight and insurance to LA)
• Currency: USD

CBP uses this to assess Section 301 tariffs (if applicable to Taiwan-origin electronics), calculate the customs value (CIF value in this case), and release the goods.

Common Mistakes on Commercial Invoices

Even experienced exporters make errors that cause shipment delays, added costs, or customs holds. The most frequent:

Vague descriptions. Writing "electronics" or "machine parts" instead of a specific product description. Customs needs enough detail to classify and inspect goods.

Incorrect or missing HS codes. The wrong code leads to the wrong duty rate — sometimes higher, sometimes triggering unexpected licensing requirements. If you're unsure of the correct code, a licensed customs broker can help.

Wrong country of origin. Listing the country you're shipping from rather than the country where the goods were made or substantially transformed. These are often different.

Inconsistent documents. The commercial invoice, packing list, and airway bill must match. If the invoice says 200 units and the packing list says 195, your shipment will be held until the discrepancy is resolved.

Undervaluing goods. Declaring a lower value to reduce duty. This is customs fraud. Penalties range from fines to cargo seizure. Always declare the true transaction value.

Missing Incoterms. Without stated terms of sale, customs can't determine who paid freight and insurance — which affects how they calculate the customs value.

No signature. Some destination countries and many carriers require a signed invoice. An unsigned commercial invoice can be rejected.

Currency not specified. Always state the currency. An invoice total of "2,400" with no currency code is ambiguous and may cause processing delays.

How to Create a Commercial Invoice

You don't need specialized software — a consistent, clearly formatted document with all required fields is what matters.

Option 1: Use our invoice generator Our invoice generator lets you build a professional invoice with all the standard fields. For international shipments, add a "Notes" or custom field section for HS codes, country of origin, and Incoterms.

Option 2: Download a Word template Start from our invoice template for Word and customize it to add the international trade fields your shipment requires.

Option 3: Use your freight forwarder's form Many freight forwarders and couriers provide a commercial invoice template aligned with their system requirements. If you ship frequently through one carrier, using their template reduces the chance of formatting issues.

Regardless of the method:

• Use the same invoice number across all shipping documents
• Have an authorized person sign the final document
• Keep a copy in your records (useful for accounting and if customs ever follows up)
• Confirm the HS code with a customs broker if you're shipping a new product category for the first time

For a broader understanding of how invoicing works beyond international trade, our beginner's guide to invoices covers the fundamentals.

Frequently Asked Questions

What is a commercial invoice used for? A commercial invoice is the official document that describes the goods being shipped, their value, and the terms of sale. Customs authorities use it to classify merchandise, determine duties and taxes, and decide whether to release the shipment.

Is a commercial invoice the same as a regular invoice? Not exactly. A standard invoice requests payment between two parties. A commercial invoice is a specialized version used in international trade that includes extra fields — country of origin, HS codes, Incoterms — specifically required by customs agencies.

What is the difference between a commercial invoice and a proforma invoice? A proforma invoice is a preliminary estimate sent before the sale is finalized. A commercial invoice is the final, legally binding document issued after goods are shipped. Customs agencies use the commercial invoice — not the proforma — to assess duties and clear goods. See our full breakdown: what is a proforma invoice.

Who prepares the commercial invoice? The exporter or seller typically prepares the commercial invoice. It should be accurate, signed, and consistent with all other shipping documents such as the packing list and airway bill.

Does the US require a specific commercial invoice format? No single federal law mandates one official format. U.S. Customs and Border Protection requires that the document contain enough information to classify the goods, determine their value and origin, and process entry. As long as all required data fields are present, the format is flexible.

Can I undervalue goods on a commercial invoice to save on duties? No. Deliberately undervaluing goods on a commercial invoice is considered customs fraud and can result in penalties, seizure of goods, or legal consequences. Always declare the true transaction value.

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A commercial invoice is one of the most consequential documents in international trade. Get the fields right, keep it consistent with your other shipping documents, and you avoid the delays and fines that sink otherwise smooth shipments. Use our invoice generator to build yours, or download a Word template you can adapt for any cross-border sale.

This article is for general informational purposes only and does not constitute customs, legal, or tax advice. Requirements vary by destination country and product type. Consult a licensed customs broker for guidance on your specific shipments.