Fulfillment · Ben Buzz · Jan 22, 2026

Impact of Section 321 on E-Commerce Fulfillment

Customs regulations offers e-commerce sellers a chance to ship goods valued under $800 duty-free into the U.S., potentially saving up to 20% on duty costs. Customs regulations provides a significant opportunity for e-commerce sellers by allowing duty-free shipping of low-value goods, specifically those valued under $800, into the United States from multiple countries. Section 321 of U.S.

Section 321 of the U.S. Customs regulations provides a significant opportunity for e-commerce sellers by allowing duty-free shipping of low-value goods, specifically those valued under $800, into the United States from multiple countries. This regulation has various implications for e-commerce fulfillment and the broader supply chain landscape.

Understanding Section 321 and Its Benefits

Under Section 321, goods valued at less than $800 per recipient per day can enter the U.S. duty-free, presenting an opportunity for e-commerce sellers to save up to 20% on duty costs. This provision allows businesses to import bulk shipments into Canada and subsequently fulfill individual orders to the U.S., capitalizing on Canada's duty drawback program to reclaim duties paid when exporting goods to the U.S.

By leveraging Section 321, customs authorities can process eligible shipments more swiftly, often resulting in transit times comparable to domestic shipments within the U.S. However, it is important to note that products such as firearms, alcohol, tobacco, and goods subject to quotas or anti-dumping duties are excluded from these benefits.

Strategic Planning and Challenges

Successfully navigating Section 321 requires strategic planning, including considerations of warehouse locations, inventory management, and partnerships with third-party logistics (3PL) providers. E-commerce businesses often collaborate with 3PL providers to manage the complexities of these regulations, ensuring compliance and optimizing fulfillment operations.

Despite these opportunities, the legislation surrounding Section 321 is subject to change, with political initiatives potentially restricting imports and increasing checks. This uncertainty necessitates that businesses remain adaptable and informed about legislative developments to maintain their competitive edge.

The Role of 3PL and Fulfillment Models

As e-commerce fulfillment continues to evolve, businesses face challenges like navigating tariffs and managing complex multi-channel requirements. Fulfillment maturity varies with business growth phases, starting from founder-led fulfillment in personal spaces to fully outsourced fulfillment managed by 3PL partners.

The decision to outsource is often influenced by factors such as the time dedicated to fulfillment, operational issues, and geographic expansion. A hybrid fulfillment model allows businesses to outsource certain SKUs and regions while processing local orders internally, testing new 3PL partnerships before committing fully.

3PL partners can provide flexibility, absorbing fluctuations in order volume and accommodating the fragility of different product profiles. They also play a crucial role in geographic expansion by enabling distributed inventory and mitigating the strain on internal staff.

Future Trends and Considerations

In the context of global e-commerce trends, the webinar scheduled for June 11, 2025, will discuss the impact of tariffs and fulfillment strategies. It will feature discussions on modern, cloud-based EDI solutions, which have been integral to supply chain operations for over 50 years, addressing misconceptions and highlighting real-world applications.

Businesses are encouraged to document their fulfillment processes, start transitions during slow seasons, maintain overlap during transitions, and conduct regular check-ins with 3PL partners. Sharing forecasts and signing clear service level agreements ensure alignment and prevent disruptions.

As the e-commerce landscape continues to evolve, Section 321 remains a vital tool for businesses looking to optimize their fulfillment operations and remain competitive in an increasingly complex global market.