What does each block of the NCM's 8 digits mean?
The first 2 digits are the chapter, the first 4 the heading, the first 6 the subheading, all coming from the international Harmonized System; the last 2 digits are the item and sub-item, which only exist in the Mercosul version of the code.
Is the NCM the same in other countries?
Only the first 6 digits, because the Harmonized System is shared by more than 200 countries that signed the World Customs Organization's convention; the last 2 digits are exclusive to Mercosul and don't exist outside Brazil, Argentina, Paraguay, and Uruguay.
How do I find the right NCM for my product?
Search the product's name in this tool and compare the official descriptions it returns against the exact state of the good (raw, processed, packaged), since small processing differences shift the subheading, as the green-bean versus roasted-coffee example shows.
Which rule governs the NCM table currently in force?
The table in force since April 1, 2022 was set by Resolução Camex No. 272/2021, issued by Brazil's Foreign Trade Chamber; later updates to specific chapters are also issued as Camex resolutions.