On the Mexican platform, taxes are withheld in real time for each transaction; when an order is returned, the withheld taxes are not automatically refunded to the seller’s account. Many sellers view returns solely as an operational issue, but in reality, they also involve tax considerations: whether to reverse withholding vouchers, how to adjust monthly filings, and how to claim deductions during annual tax settlements—each step directly impacts cash flow. This article breaks down the three types of tax treatment differences in return scenarios, the key points for issuing credit memos, and the two supporting documents that must be provided.

Mexico strictly adheres to the “first-to-file” principle, and trademarks registered in China have no legal effect in Mexico; once a local party registers a trademark first, it is nearly impossible to enforce one’s rights. This article breaks down the three strict rules for trademark registration based on the Mexican Institute of Industrial Property’s (IMPI) 2026 electronic application process: the requirement to engage a local licensed agent; the need to simultaneously file for Class 35 (advertising and sales); and the obligation to submit a declaration of use after three years of registration. Attached are the 2026 reference official fees and certification processing times for sellers on Mercado Libre and Amazon Mexico to use for self-assessment.

The electronic valuation declaration implemented by the Mexican Tax Authority through the Single Window for Foreign Trade will finally take effect on June 1, 2026, following two extensions, marking the complete phase-out of paper-based declarations. For Chinese sellers on Mercado Libre and Amazon Mexico, without a valid RFC tax ID and an electronic signature, they won’t even be able to log into the system. This article breaks down the VUCEM timeline, the implications of the now-effective joint liability for customs brokers, and the four actions that must be completed before the transition period ends, helping sellers reorganize their customs clearance schedules.

When discussing Mexican taxes, sellers tend to focus almost exclusively on ISR and IVA, but the IEPS excise tax is also an integral part of the local tax system. It is levied on the production and import of specific product categories, with tax rates varying by category; for some goods, the tax is also calculated based on quantity. This article explains the scope of application of the IEPS, common product categories subject to it, and the respective responsibilities that cross-border sellers must fulfill during both the import and platform sales phases.

2026年墨西哥数字平台代扣新规生效后，很多卖家只把代扣比例直接加进售价，结果算出来的价格要么没利润要么没单量。真正的定价模型里，代扣只是其中一层：平台佣金、仓储配送费、退货损耗、资金占用与汇兑损失都要逐项还原。本文拆解墨西哥站定价常被漏算的五项成本，并给出可落地的倒推公式。