On August 1, 2026, Meituan’s Brazil marketplace began enforcing the ”Split Payment” system. This new regulation caught many Chinese sellers preparing to enter the Brazilian market off guard—in the past, Chinese sellers received payments through Meituan’s cross-border stores, and after funds entered the platform’s account, the entire amount was settled into a third-party payment tool; Under the new regulations, in accordance with Brazilian tax law, the platform automatically splits the sales revenue from each order into two parts—”product sales” and “service fees”—which are settled separately and taxed separately. This means that sellers who have not linked a local Brazilian CPF/CNPJ tax ID and a local bank account will face

Many entrepreneurs venturing into cross-border e-commerce on Mercado Libre in Brazil and Mexico stumble right from the start: they blindly list products, get caught up in a price war, spend money haphazardly on ads, and choose products just because others are doing it. After working hard for half a year, they end up making no profit—or even walking away at a loss.

I’m sure many business owners on Meike Duo focus their efforts on running their stores and overlook the issue of tax filing. One of Qicaiying’s clients has been operating a local store in Mexico for a year. We’ll call him Mr. Sun. Throughout that year, he believed he was fully compliant—he filed his taxes on time every month based on 3% of his GMV, paid every penny he owed, and had no overdue records in the SAT system. He thought that 3% covered all his tax obligations, and once he paid it, he felt at ease. That is, until early the following year, when his accountant helped him with his annual tax settlement and informed him: “The monthly 3% payments are merely advance payments. The annual ISR is calculated based on actual profits, with an effective tax rate ranging from 29% to 35%. Since you’ve made a decent profit this year, you’ll need to pay the difference.”

President Sun was baffled: “I thought 3% was the total amount. Why do I have to pay such a large sum again at the end of the year?”

Monthly 3% and annual back payments—this “dual-track system” is a pitfall that many cross-border sellers in Mexico’s RFC tax ID system tend to overlook. It’s not that they fail to file; rather, they don’t realize that the “3% filed monthly” does not equal the “total tax owed for the year.”

How many stores can be opened under a single RFC tax ID for a local store on Meike Duo Mexico? Many clients at Qicaiying have asked this question. Instead of searching for information online, I recommend reading this article. I’ll explain Mercado Libre’s actual criteria for determining store associations—not based on hearsay, but on platform rules and real-world operational experience.

I’m sure there are business owners on MeKeDuo who have encountered this situation: their RFC tax ID has been frozen, leaving them feeling helpless and unsure of how to proceed. This article will walk you through the ins and outs of Mexican tax IDs. A-Jie (a pseudonym) had been operating his local Mexican store for over half a year, and everything was going smoothly. One day, he logged into his Mercadillo dashboard and discovered that his tax status had changed from “RFC Verified” to “RFC Pending Verification.” He didn’t think much of it, assuming the system was conducting a routine review.

Two days later, he discovered that the settlement amounts for the new orders were incorrect—36% had been deducted as tax from each order, instead of the previous amount of approximately 10.5%. Only then did he start to panic.

When I contacted Meike Duo customer service, I received the following response: “Your RFC tax ID status is shown as ‘Suspendido’ (suspended), and the platform has automatically switched to the non-resident withholding tax rate. Please contact SAT to restore your tax ID status.”