Form M is a mandatory statutory document to be completed by all importers for importation of goods into Nigeria.

The life span of a Form M is 180 days (for general merchandise) and 365 days (for plant and machinery), after which an extension of 180 days (for general merchandise) and 365 days (for plant and machinery) can be granted on the Form M by the Authorized Dealer. Any further extension has to be approved by the Central Bank of Nigeria (CBN).

It is therefore mandatory for all importers to complete and register Form 'M' with Authorized Dealers at the time of placing orders whether the transaction is valid for foreign exchange or not. This is currently initiated electronically on Trade Portal provided by the Central Bank of Nigeria in conjunction with the Nigeria Customs Service.