What's Happening?
The U.S. Postal Service (USPS) has enacted a new rule, effective October 19, that shifts the responsibility for certain foreign customs charges to American merchants engaged in cross-border sales. This rule establishes procedures for the USPS, either
directly or through a third-party, to bill merchants when foreign duties, taxes, or import fees remain unpaid or when a foreign entity seeks payment. The rule covers a broad range of charges imposed by customs agencies, postal operators, brokers, and other service providers. This change was partly prompted by the European Commission's July 2026 termination of its de minimis exemption, which previously allowed low-cost merchandise to be duty-free. Merchants are now required to pay USPS invoices for these charges, even if they dispute the underlying assessment, and remain responsible for fees regardless of whether the parcel is delivered, lost, damaged, or returned.
Why It's Important?
This new USPS rule significantly impacts U.S. e-commerce businesses that sell internationally, particularly those with low-margin products. It introduces a new layer of financial risk and complexity, as merchants could face unexpected costs long after a sale, even for returned or undelivered goods. The requirement to pay disputed charges upfront places the burden of resolution on the merchant, who must then pursue the matter with the foreign entity. This could lead to increased operational costs, potential losses on international sales, and a need for businesses to re-evaluate their international shipping strategies, pricing, and terms of service. Small and medium-sized enterprises (SMEs) may be particularly vulnerable to these changes due to limited resources for managing complex international customs disputes. The rule could also influence the competitiveness of U.S. merchants in the global marketplace, potentially making international shipping less attractive or more expensive for consumers.
What's Next?
U.S. merchants engaging in international sales will need to adapt their practices to comply with this new USPS rule. One recommended approach to mitigate uncertainty is to utilize the USPS's Delivered Duty Paid (DDP) service for eligible international shipments, which allows merchants to prepay applicable duties, taxes, and fees. However, DDP is not available for all countries and may involve additional fees from third-party providers. Businesses will likely need to update their shipping software systems, refine their landed cost calculations, and establish clear country-specific shipping policies to account for these potential liabilities. They may also need to adjust their customer communication to clearly explain potential customs charges. The rule's implementation will likely lead to increased scrutiny of international shipping logistics and a greater emphasis on understanding and managing foreign customs regulations to avoid unexpected financial burdens.
Beyond the Headlines
The USPS rule reflects a broader global trend towards stricter enforcement of customs duties and taxes on international e-commerce, driven by factors such as the growth of online shopping and the desire of countries to collect revenue and protect domestic industries. While the immediate impact is on U.S. merchants, this development signals a shift in the landscape of international trade, where the responsibility for customs compliance is increasingly being pushed upstream to sellers. This could lead to a more formalized and transparent system for international shipping, but it also raises questions about the administrative burden on businesses and the potential for trade friction. The rule highlights the evolving challenges of cross-border commerce in a digital age, where physical borders still impose significant regulatory and financial complexities on transactions that appear seamless online.













