Urgent Alert: Some sellers have recently encountered situations where the Mexican RFC tax ID numbers they were using under a third-party arrangement were subject to tax audits, resulting in the simultaneous suspension of all stores linked to those ID numbers, the freezing of funds, and the seizure of goods. This is not a scare tactic—it is the actual chain reaction following Mexico’s 2026 tax reform.

如果有一片区域，坐拥6.5亿人口、互联网用户快速渗透、电商渗透率却只有欧美的三分之一——你会不会心动？这就是拉美。而在这片土地上，有一个中国卖家正在跑步进场的平台，名叫美客多（Mercado Libre）。

Over the past six months, things have changed.

With the same products, the same ad budget, and the same listing optimization strategy, order volume has been declining month after month. The ad ACOS has risen from 18% to 32%. What’s even more puzzling is that—despite his product having a 4.6-star rating and a price 5% lower than competitors’—his conversion rate remains stubbornly low.

“我在美客多墨西哥站卖了一年，利润看着不错，但年底发现多交了十几万的税。”

这是美客多墨西哥站卖家的常见遭遇。问题出在一个关键机制上：墨西哥对非居民企业（未注册RFC的卖家）征收36%的预扣税率——不是利润的36%，是收入的36%。

而注册RFC后，这笔预扣税率大幅降至增值税16%+所得税30%的合规体系。两者之间的差距，对月销售额10万美元以上的卖家，一年差额高达数十万人民币。本文拆解RFC注册的合规逻辑和实际降本效果。

As a professional one-stop business service platform, Qicaiying is committed to providing clients with company registration services in mainland cities such as Beijing, Shanghai, Guangzhou, Shenzhen, and Hangzhou, cross-border e-commerce services, Hong Kong company registration, […]