5 Documents to Export to the US

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To successfully export to the US, every company must obligatorily present five documents at customs: the Proforma Invoice, the Commercial Invoice, the Packing List, the Bill of Lading, and, depending on the product, specific certificates from regulatory agencies like the FDA. This initial documentation ensures that your merchandise enters the American market legally, helping to avoid fines, clearance delays, or even the blocking and return of cargo at American ports and airports.

If your company is planning this, you already know that the American market is one of the most lucrative and dynamic in the world. The purchasing power of consumers in the United States attracts businesses from all over the globe, but this opportunity comes with rules. The US Customs and Border Protection (CBP) is relentless when it comes to documentation errors.

Many entrepreneurs lose money and sleep because they neglect the paperwork, treating it as a mere administrative detail. In practice, documentation is your cargo's passport. A vaguely filled-out paper can trigger an alert in the American customs system, resulting in physical inspections that are costly and delay delivery to your client.

To ensure your internationalization is a fluid and profitable process, we have detailed below the documentation you need to master before shipping your first container to Uncle Sam's land.

1. Pro Forma Invoice

The Proforma Invoice is not an accounting document, but it is where all your commercial security begins. Think of it as the official quote or the formalized commercial proposal that you send to your buyer in the United States before the merchandise is even produced or shipped.

This is the document where you establish the rules. The Proforma must contain a clear description of the items, the unit and total price in the negotiated currency (usually US Dollars), the payment terms, and, fundamentally, the chosen Incoterm (such as FOB, CIF, or EXW). The Incoterm will dictate who pays for freight and insurance, and where your responsibility ends and the American buyer's begins.

For the American market, being transparent here avoids future disputes. If the buyer accepts the Proforma Invoice, you have the green light to start preparing the cargo. If you need support structuring complex negotiations, speak with the experts at B2B TradeCenter to ensure your international contracts are bulletproof.

2. Commercial Invoice

This is, without a doubt, the most scrutinized document by US customs. The Commercial Invoice is the international billing document and the legal basis the American government will use to calculate the import duties your client will need to pay.

To export to the USA, your Commercial Invoice must mandatorily be written in English. Poor translations or generic descriptions are an invitation to trouble. For example, describing an item merely as a "metal part" is unacceptable to the CBP. You need to detail what the part is, what metal it is made of, and what its purpose is.

In addition to the language, the Commercial Invoice must display the merchandise's tariff code. In the United States, classification is done by the HTSUS (Harmonized Tariff Schedule of the United States). The first six digits are universal, but the final numbers change. Ensuring the HTSUS is correct on your Commercial Invoice speeds up the customs process.

3. Packing List

The Packing List is a physical detailing of everything inside your shipment. It does not contain financial values, but rather logistical information: volumes, net weight, gross weight, dimensions of the boxes, pallets, and batch numbers.

Why does US customs care so much about this? Because American port security operates based on intelligence and sampling. If the CBP decides to perform a physical inspection of your container, agents will use the Packing List to find exactly the box they want to open. If the document says box number 45 contains leather shoes, and they find belts, your entire cargo will be held on suspicion of fraud.

Another vital detail when filling out the Packing List for the US market: convert your weights and measures. Although the metric system is accepted, providing indications in pounds (lbs) and inches facilitates the lives of the logistics operator and the buyer in the USA. Also, remember to ensure that any wooden packaging, such as pallets, has the international phytosanitary treatment seal (ISPM 15), or your cargo won't even leave the port of origin.

4. Bill of Lading or Air Waybill

The Bill of Lading is issued by the carrier, ocean shipping line, or airline, and serves as a receipt for the merchandise and a contract of carriage. If your cargo goes by ship, it is called a Bill of Lading (B/L); if by plane, an Air Waybill (AWB).

When exporting to the USA by sea, there is a strict national security rule called ISF (Importer Security Filing), also known as the "10+2" rule. Before the ship even sets sail exact data extracted from your B/L, Commercial Invoice, and Packing List must be electronically transmitted to American customs.

Delays or errors in this transmission generate fines starting in the thousands of dollars. Therefore, your Bill of Lading needs to reflect reality with precision, as it directly feeds the United States government's anti-terrorism and port security systems.

5. Regulatory Agency Documentation (FDA, USDA, EPA)

While the four documents above are the backbone of any standard operation, the American market has an extra layer of protection. Depending on what you manufacture, the customs authority shares oversight with other government agencies.

• If you are exporting food, beverages, cosmetics, medical devices, or drugs, you will deal with the FDA (Food and Drug Administration). In these cases, your company will need FDA registration, and you must file a Prior Notice before the cargo arrives in the US. Without this electronic document, the American port blocks the merchandise immediately.
• If your business involves animal or plant products, such as raw wood or meat, the USDA (US Department of Agriculture) will require specific sanitary or phytosanitary certificates.
• Even machinery that emits radiation or chemicals passes through the scrutiny of the EPA (Environmental Protection Agency).

Understanding your product's jurisdiction is fundamental, and you can contact our team of regulatory experts to find out exactly which American regulatory bodies monitor your niche.

Errors You Cannot Afford to Make

Documentary clarity is what separates companies that profit in the international market from those that accumulate losses. US customs operate under the principle of "Informed Compliance." This means they assume that you, as the exporter, have an obligation to know the rules before sending anything. Ignorance of the law is never accepted as an excuse by the CBP.

A very common mistake is undervaluing, where the exporter declares a lower value on the Commercial Invoice to help the American client pay fewer import duties. This is a federal crime in the United States and can result in your company being permanently banned from American soil. Another frequent misstep is discrepancies between documents. If your Commercial Invoice indicates 1,000 units, but the Bill of Lading shows 990, the automated US customs system will freeze your process until the difference is formally justified.

Next Steps For Your Export

Selling to the United States requires professionalism, and your export documentation reflects your company's level of maturity to foreign buyers. Accurate documents aligned with CBP rules not only prevent fines but also build a reputation of reliability for your brand in the American market.

Mastering this bureaucracy might seem challenging at first, but with experienced partners, the process becomes methodical and secure. If you want to ensure your next shipment crosses the American border without any bureaucratic hurdles, contact the consulting team at B2B TradeCenter and let us help optimize all your export documentation.

Frequently Asked Questions About Export Documentation to the USA

What is the difference between a Pro Forma Invoice and a Commercial Invoice?
The Proforma Invoice is a preliminary document; it functions as a formal quote or commercial proposal sent to the buyer before shipment. The Commercial Invoice is the actual billing document that accompanies the cargo, used by US customs (CBP) to calculate import duties. The merchandise is only cleared with an accurate Commercial Invoice.

Is FDA registration mandatory for all exports to the USA?
No. Registration with the FDA (Food and Drug Administration) is only required for specific product categories that impact human or animal health and consumption. This includes food, beverages, cosmetics, drugs, and medical equipment. If you export metal furniture or cotton clothing, for example, the FDA has no jurisdiction over your cargo.

How do I find the correct HTSUS code for my merchandise?
The HTSUS (Harmonized Tariff Schedule of the United States) is the American product classification system. The first six digits are usually identical to the NCM (Mercosur Common Nomenclature) used in Brazil, but the final digits vary. You can search for the exact code on the official US International Trade Commission (USITC) website or rely on customs consulting from B2B TradeCenter to avoid classification errors.

What happens if there are errors on the Bill of Lading?
Errors or omissions on the B/L when exporting to the USA by sea can result in fines, often starting at US$5,000. This occurs because the B/L data is used for the mandatory ISF (10+2 Rule) transmission before the ship leaves the port of origin. In addition to the fine, your cargo may be immediately detained upon arrival on American soil.

Can I fill out the export documents in Portuguese?
Not for destination customs. Although some internal and outbound documents from Brazil (such as the DU-E) are in Portuguese, all international documents that will be presented to US customs—especially the Commercial Invoice and Packing List—must mandatorily be issued in English. Precise and technical translations are fundamental.