Everything for Amazon Sellers—in One Base.

To find the HTS code for your Amazon product, you classify it yourself under the Harmonized Tariff Schedule of the United States (HTSUS): pick the 4-digit heading whose legal text and notes describe the product, apply the six General Rules of Interpretation (GRIs) in order, narrow down to the 8-digit tariff line, then add the 2-digit statistical suffix to reach 10 digits. Before you commit, search CBP’s CROSS database for rulings on similar goods, and if real doubt remains, ask CBP for a binding ruling. Under 19 U.S.C. 1484 the legal duty to classify sits with the importer of record, not with Amazon, your supplier, or a code-lookup website. ...

Duty drawback is the US customs program that refunds duties you paid on imported goods once those goods (or qualifying substitutes) are exported or destroyed. For an Amazon FBA seller, that means duty drawback can return up to 99 percent of the eligible duties on inventory you imported and later shipped out of the US or destroyed under customs rules, as long as you file in ACE within five years of the import date (19 CFR 190.51 and CBP’s drawback page, data checked 2026-10-06). Duties on goods you sold to US customers do not come back. ...

CPSC eFiling is the requirement, in effect since July 8, 2026, that importers of CPSC-regulated consumer products electronically file certificate of compliance data with U.S. Customs and Border Protection (CBP) at entry. It covers any finished product that needs a certificate, which means General Certificates of Conformity (GCCs) for non-children’s products as well as Children’s Product Certificates (CPCs). The importer supplies seven data elements, or three certificate identifiers from CPSC’s Product Registry, and the customs broker transmits them. Shipment value does not matter: CPSC’s FAQ says there is no de minimis exemption. ...

Amazon FBA lithium battery requirements come down to three things: complete battery information at listing, a UN 38.3 test summary at ASIN setup, and a battery exemption sheet uploaded to Manage dangerous goods classification. Amazon’s lithium battery help page states all three, and attaches one consequence to the first: “If the battery information that you provide is incomplete, inaccurate, or otherwise conflicting, your product may be blocked for sale through FBA” (Requirements for lithium batteries and products powered by lithium batteries, checked 2026-10-06). On top of the paperwork sits a size limit: whether a cell or battery is accepted depends on its watt-hours and on the marketplace. ...

Amazon Attribution for Sellers: What It Measures, Who Is Eligible, How to Build Tags, and How to Read the Metrics Amazon Attribution is Amazon’s free tool for measuring what happens on Amazon after a shopper clicks a link you placed somewhere else — a Google ad, a TikTok post, an email, an influencer’s review. You build a tagged URL for each campaign tactic, put it in place of your plain Amazon link, and Amazon reports the detail page views, add-to-carts, purchases, sales, and new-to-brand orders that followed the click within a 14-day window. Professional sellers need a brand enrolled in Amazon Brand Registry to use it. ...

Prop 65 on Amazon comes down to two documents: California’s warning regulations, which put the warning duty mainly on the manufacturer, producer, packager, importer, supplier, or distributor, and Amazon’s own help page, which tells every seller to “Determine if the product needs a Prop 65 warning” and submit it through the listing’s Compliance attributes (Amazon Seller Central, G202141960, checked 2026-10-05). The same Amazon page states that this applies “even if you have fewer than 10 employees, and even if someone else is selling the same product.” ...

Short answer: if your FBA inventory travels to the United States by ocean, someone has to send CBP an Importer Security Filing (ISF, also called “10+2”) before the container is loaded at the origin port. The legally responsible party is the “ISF Importer” — usually you, the brand owner buying the goods — even when a freight forwarder or customs broker presses the button. Eight of the ten data elements are due no later than 24 hours before the cargo is laden aboard the vessel at the foreign port, and CBP’s mitigation guidelines allow a $5,000 liquidated damages claim per late ISF (CBP ISF FAQ, May 2023 edition, checked 2026-10-05). Air and express shipments are outside the rule. ...

To sell supplements on Amazon you clear two separate systems: federal law, where FDA does not approve your product before launch but you carry full responsibility for its safety and label, and Amazon’s own dietary supplements policy, which requires every listed product to be verified through an Amazon-authorized third-party testing, inspection, and certification (TIC) provider. FDA states plainly that “Under DSHEA, FDA does not have the authority to approve dietary supplements before they are marketed” (Questions and Answers on Dietary Supplements, checked 2026-10-05). Amazon, on its side, writes: “To list on Amazon, you must work with a direct product validation authorized third-party testing, inspection, and certification (TIC) service provider to verify all notified ASINs” (Dietary supplements policy, checked 2026-10-05). ...

If you import food into the US for Amazon FBA, two FDA filings sit in front of the shipment: the factory that makes or packs the food must hold an FDA food facility registration, and someone must submit FDA Prior Notice for each shipment before it reaches the US port. According to FDA’s guidance What You Need to Know About Prior Notice of Imported Food Shipments (data checked 2026-10-05), Prior Notice is due no less than 2 hours before arrival by road, 4 hours by rail or air, and 8 hours by water, and “any individual with knowledge of the required information” can submit it. Food with inadequate Prior Notice “is subject to refusal and, if refused, must be held at the port of entry” unless directed to another location. ...

A Children’s Product Certificate (CPC) is a written certificate, issued by the US manufacturer or, for anything made abroad, the importer, stating that a children’s product passed testing at a third-party, CPSC-accepted laboratory against every children’s product safety rule that applies to it. For an Amazon seller importing kids’ goods from an overseas factory, the certifier is the importer of record, not the factory: CPSC’s FAQ, read on 2026-10-05, says “an importer cannot simply pass along a foreign manufacturer’s certificate of conformity.” Amazon asks for a CPC through its compliance requests and lists what the certificate must carry. ...

For most US sellers, the first Amazon marketplace to expand to is Canada, Mexico or Brazil, because all three sit inside the account you already have. Amazon’s global expansion guide says a US seller needs a “Professional North America and Brazil unified account, which you can use to sell in the US, plus Canada, Mexico, and Brazil” (sell.amazon.com, data checked 2026-10-04). Europe, the Asia-Pacific and the Middle East each need another account. That split, plus one fee rule for linked accounts, sets the order of the decision. The demand data in the Sell Globally dashboard and Marketplace Product Guidance then tells you which country inside that order is worth the work. ...

To sell on Amazon Europe from the US, you create a regional Europe account — from your Amazon.com Professional account if you already have one, or through the Sell Globally dashboard after opening a North America and Brazil unified account if you are new. Amazon says a business outside Europe “may not be required to form a Europe-based company to sell your products in Europe” (data checked 2026-10-04). Then you choose FBA or merchant fulfillment, and before your first unit ships you answer the VAT question, because storing or selling goods in an EU country can require a VAT registration there. ...