An Assurance Letter is a crucial document in Nigerian business and legal practice, commonly used when formal written guarantees or commitments are required between parties. This document type serves multiple purposes, from providing financial assurances to confirming compliance with specific obligations or requirements. Under Nigerian law, Assurance Letters must be carefully drafted to ensure enforceability, typically requiring clear terms, proper authorization, and compliance with local documentary requirements including stamping where applicable. The document is particularly valuable in situations requiring formal commitments without the complexity of a full contract, offering a balance between legal certainty and practical efficiency. It's widely used in corporate transactions, regulatory compliance, and business relationships where formal written assurances are needed to proceed with transactions or maintain business relationships.

1. Letter Header: Official letterhead, date, reference number, and address of recipient

2. Subject Line: Clear indication of the subject matter of the assurance

3. Salutation: Formal greeting to the recipient

4. Introduction: Identity of the assuring party and their authority to give the assurance

5. Context/Background: Brief explanation of the circumstances leading to the assurance

6. Assurance Statement: Clear and unambiguous statement of the specific assurance being given

7. Terms and Duration: Specific terms, conditions, and duration of the assurance

8. Signature Block: Official signature, name, title, and company details of the assuring party