What is Form M? Nigeria's Mandatory Import Document Explained

If you are importing goods into Nigeria, Form M is one of the first — and most important — documents you will encounter. Getting it wrong or missing the timeline for opening it can delay your clearance by weeks and cost you significant money in demurrage charges.

What is Form M?

Form M is a mandatory import document issued by the Central Bank of Nigeria (CBN) through a commercial bank. It authorises the foreign exchange transaction for the importation of goods into Nigeria. In simple terms: it is the Nigerian government's way of controlling and tracking what is imported into the country and ensuring that the foreign exchange used to pay for imports is properly documented.

Every commercial import with a value above $1,000 USD requires a Form M. Imports below this threshold, personal effects, and some government-to-government imports may be exempt.

Who Opens the Form M?

The Form M is opened by the importer (not the supplier or the clearing agent) at their commercial bank in Nigeria. You must have a corporate or business bank account — Form M cannot be opened on a personal account. Your bank must be an Authorised Dealer Bank (ADB) licensed by the CBN for foreign exchange transactions.

When Must You Open It?

This is critical: Form M must be opened before your goods are shipped from the country of origin. It is not a document you can obtain after your goods arrive in Nigeria. If goods arrive without a valid Form M, they will be held by Customs and cannot be cleared without regularisation — a time-consuming and expensive process.

What Information Do You Need to Open Form M?

• Supplier's proforma invoice (showing value, description, quantity)
• Your Tax Identification Number (TIN)
• HS code for your goods
• Country of origin
• Port of destination in Nigeria
• Your bank's approved FX allocation

Your clearing agent can advise you on the correct HS code and port details to include.

How Long is Form M Valid?

A Form M is typically valid for 6 months from the date of opening. If goods do not arrive before expiry, the Form M must be amended or renewed — which requires approval from your bank and the CBN. Shipping delays that push your arrival past the Form M expiry date are a common source of port problems.

What Happens If the Invoice Value Doesn't Match?

The value on your Form M must match your Commercial Invoice exactly (same currency, same amount). Any discrepancy — even a small one — will cause your PAAR to be rejected by Nigerian Customs. If the invoice value changes (e.g. the supplier revised pricing), you must amend the Form M at your bank before the goods arrive.

Form M and the PAAR Connection

Your clearing agent cannot process your PAAR (Pre-Arrival Assessment Report) without a valid Form M number. The Form M number is entered into the NCS NICIS II system and validated as part of the PAAR generation process. This is why Form M must be ready well in advance of your vessel's arrival.

Key Takeaways

• Open Form M at your bank before goods are shipped
• Ensure the invoice value and Form M value match exactly
• Form M is valid for 6 months — monitor your vessel ETA
• Your clearing agent needs your Form M number to file the PAAR
• Form M cannot be backdated or obtained after goods arrive