On September 9, 2026, Mercado Libre Mexico will officially adjust the rules for calculating seller reputation (Reputación). The most significant change is that the order volume threshold for the reputation calculation period—based on the most recent 60 days—will increase from 40 orders to 101 orders. In other words, only sellers who have completed 101 or more orders in the past 60 days will have their reputation calculated based on their “past 60 days” performance; sellers with fewer than 101 orders will automatically switch to having their reputation calculated based on their “past 365 days” historical performance.

In 2026, MeKeDuo’s Mexico marketplace will implement its strictest-ever regulations regarding RFC tax ID numbers. Not only does the platform require that the entity registered for the cross-border store match the entity associated with the RFC tax ID linked to the backend, but it has also launched an AI-powered self-service verification tool. This allows sellers to sign an authorization letter via DocuSign and upload the original PDF version of the CSF file directly from the SAT website, completing the verification process within 2 to 3 business days. This series of measures marks the definitive end of the era of “borrowed tax ID numbers.”

On August 5, 2026, Mercado Libre (NASDAQ: MELI) released its financial results for the second quarter of 2026. This earnings report marked a historic milestone: for the first time, quarterly net revenue surpassed the $10 billion mark, reaching $10.17 billion, a year-over-year increase of 50% (43% on a currency-neutral basis). GMV (Gross Merchandise Volume) totaled $21.9 billion, up 44% year-over-year (36% on a currency-neutral basis). Cross-border trade GMV grew by 60% (currency-neutral), while shipment volume at fulfillment centers in China increased by 170% quarter-over-quarter.

“I’ve made 50 sales in the last 60 days. Previously, my reputation was calculated based on a 60-day cycle, but as soon as the new rules went into effect in September, the calculation was switched to a 365-day cycle—a single cancellation from a few months ago will now remain on my record for a full year.” This complaint from a small-to-medium-sized seller on the Mexico marketplace in an online community highlights the most direct impact of Mercado Libre’s September reputation rule changes on small-to-medium-sized sellers.

四年来的最快季度增速，出现在很多卖家还没认真看过的市场。Mercado Libre（美客多）2026年第一季度财报显示：净营收约42亿美元，商品交易总额（GMV）达190亿美元，独立买家数量达到8400万，其中最刺眼的数字是——跨境业务同比增长68%。这是美客多近四年来增速最快的一个季度，也是拉美电商基础设施红利集中兑现的一个季度。