Halloween in Latin America (Halloween / Día de las Brujas / Nochevieja) is the second-largest sales event on Mercado Libre in the second half of the year, second only to Christmas. Over the past three years, its GMV contribution has risen from 15% to 22%. On August 1, 2026, following the launch of the CBT PRO program in Mexico, Brazil, Chile, and Argentina, the eligibility criteria for independently submitting DoD, LD, and Rebates campaigns shifted from an ”invitation-only system” to ”applicants must have an IPI score of 50 or higher.” This means that starting in September, sellers can use Halloween-themed product selections +

In late August 2026, Mercado Libre officially announced that the first phase of its new distribution center—comprising 70,000 square meters of building space—at the Areya Escobedo Industrial Park in Escobedo, Nuevo León, Mexico, will officially begin operations in September 2026. This is Mercado Libre’s flagship project as part of its $4.6 billion investment in Mexico for 2026 (a 35% increase from 2025). The initial phase of operations will create over 2,000 jobs, and once the entire park is completed, it is expected to generate 8,000 to 10,000 jobs.

On August 1, 2026, Mercado Libre Brazil officially implemented the split payment system: the platform automatically splits ”sales proceeds” and ”service fees” in accordance with Brazilian tax law, settling each portion separately and withholding taxes on them separately. This new regulation, combined with the simultaneous upgrade to Mercado Pago’s cross-border payment collection service, marks the beginning of a new dual-track phase for Latin American cross-border sellers” cash flow: ”platform-mediated collection and payment” combined with “settlement through locally compliant accounts.”

Sellers on Meituan’s Mexico site in August 2026 have recently been receiving two alarming emails: one states, ”Your RFC tax ID has not passed the e.firma electronic signature verification; please complete the verification as soon as possible”; the other states, ”Invoices cannot currently be issued for some of your products due to missing CFDI electronic invoice information. Please provide the SAT product classification codes and tax rates.” These two new regulations have effectively eliminated the ”borrowed RFC” model—the most common practice on the Meituan platform in recent years—where sellers used someone else’s tax ID to set up a store and get through platform reviews.

On August 1, 2026, Mercado Libre, the Latin American e-commerce giant, officially opened its local “FULL” warehouse services in Mexico, Brazil, Chile, and Argentina to Chinese cross-border sellers, while simultaneously launching CBT PRO (an advanced seller growth service for overseas warehouses). This marks the largest infrastructure upgrade by Mercado Libre since the launch of its cross-border trade program. Previously, Chinese sellers could only enter the Latin American market via direct international shipping, which resulted in delivery times of 15–30 days and persistently high return and exchange rates. Now, through local “FULL” warehouses, sellers can pre-position inventory in warehouses within their target countries,