Mandatory CAC Business Letterhead Disclosure: Key Facts and Rules

By Alexander Odidi, Esq. A

        

If you run a registered company in Nigeria, there's a rule you've probably ignored for years without even realizing it existed and now, the Corporate Affairs Commission (CAC) is done looking the other way.

It's called the Mandatory Business Letterhead Disclosure, and starting August 1, 2026 (it's already in force), the CAC is enforcing it strictly. Companies will face real sanctions if they don't comply. 

This article explains exactly what it means, who it affects, and what you need to do about it. 

What is This Rule? 

In simple terms, the CAC is requiring every registered company in Nigeria to print specific information on its official letterheads and business correspondence. This isn't a brand-new law. It has been sitting nicely in the Companies and Allied Matters Act (CAMA) 2020 for a while.

What's new is that the CAC has announced it will now enforce it properly, after years of companies quietly ignoring it. The directive backing this rule comes from Sections 304(1), 304(2), and 729(1)(c) of CAMA 2020, and it was formally announced by the CAC in a public notice on July 7, 2026, giving companies until August 1, 2026 to get their documents in order.

What Must be on Your Letterhead?

Under the law, every business letter (and related official documents) must clearly and legibly display this checklist:

  • Your company's registered name. Ensure it's written exactly as it appears on your CAC certificate

  • Your company registration number (RC number)

  • Your registered office address

  • The full names of every director. This includes either their full forename or initials, plus surname

  • Any former names a director has used, if applicable

  • The nationality of any director who isn't Nigerian

That last one catches a lot of people off guard. If your company has a foreign director on the board, their nationality must now be stated right there on your letterhead.

There's more. Under Section 729(1)(c), this requirement extends to other official business documents too, such as invoices, receipts, notices, and even advertisements. So it goes beyond your fancy printed letterhead; it also covers your everyday paperwork and digital templates.

Why is the CAC doing this now?

Transparency is the most important answer here. The CAC has said the goal is to make sure that anyone dealing with a company: customers, regulators, or business partners, can easily verify who's actually running the company. 

The move is part of a broader push to clean up Nigeria's corporate environment, reduce fraud, and build more trust in how businesses operate and portray themselves. In the Commission's own words, the enforcement is meant to strengthen "corporate transparency" and reinforce confidence in Nigeria's regulatory system.

Who Must Comply and Who is Exempt? 

This is where a lot of business owners had questions, and the CAC has since clarified things. The Registrar-General confirmed that the directive applies to registered companies only. This means limited liability companies incorporated under CAMA.

If you run a Business Name (like a sole proprietorship or simple registered trade name) or an Incorporated Trustee (this includes NGOs, religious organizations, charities, and foundations), you're exempt from the rule.

What Happens if You don't Comply?

The CAC has been clear that non-compliance will attract sanctions spelt out by CAMA. While the Commission hasn't spelled out an exact penalty schedule in its public notice, legal experts widely expect regulatory fines and possible enforcement action for companies that keep ignoring the requirement after the deadline.

Basically, it's not worth the risk of finding out the hard way.

What to Do Before the Deadline

As of the time of writing this article, the deadline of August 1st 2026 has already passed. 

The actions you were required to follow are: 

  • Check what is currently printed on your business letters, invoices, official documents, and other documents. 

  • Cross-check your director list with your CAC records and make sure the names on your letterhead match official records. If they don't, update the CAC records first, especially if a director has recently joined or left.

  • Add any missing detail. Registered name, RC number, registered address, director names, former names (if any), and nationality for foreign directors.

  • Update your digital templates too, so that the changes are reflected across the board. 

The Bottom Line 

This rule isn't some new bureaucratic hurdle that popped up. It is an old CAMA requirement finally getting real enforcement teeth. 

If you're running a registered company in Nigeria, take a few minutes to check your letterhead against the checklist above to avoid potential penalties. 




Disclaimer: This article is for general informational purposes and reflects publicly available information as of August 2026. For guidance specific to your company, consult a corporate lawyer or CAC-accredited consultant. LegalBizPro is not an affiliate or part of the CAC. 

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