06/17/2026
Your tariff classification has 10 digits.
Most importers only think about the first 8. The last two carry more weight than you'd expect.
Here's what the NICO actually is — in plain language:
Since the Nueva LIGIE took effect in late 2020, every Mexican tariff fraction (8 digits) carries a Número de Identificación Comercial — a final pair of digits that brings the total to 10.
The 8-digit fraction sets the tariff. The NICO doesn't change your duty. What it does is identify the specific merchandise with far more precision.
Why that matters operationally:
The NICO is how the authority sees exactly what you're importing — not just the category. That precision cuts both ways.
It feeds cleaner trade statistics. It also gives the authority sharper tools to detect undervaluation, misclassification, and goods flagged in trade disputes.
So the part of the code most teams treat as an afterthought is the part that makes your declaration legible — or questionable — to the authority.
A wrong fraction is a classification error. A wrong NICO on a correct fraction is a different kind of exposure: the duty is right, but the merchandise you declared isn't the merchandise you moved.
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How does your team validate the NICO before filing — manual review, broker, or system?