Meaning
Secondary support document issued by a parent company or an auditor to provide non-binding assurance regarding the financial health of a subsidiary or the accuracy of a prospectus. Most comfortable letters avoid creating a legally enforceable guarantee to ensure the obligation does not appear as a liability on the balance sheet of the issuer. The boundary of the document is reached when the language explicitly denies a contractual intent or an indemnity.
Auditor Assurance
Professional firms issue these documents to underwriters to confirm that no material adverse changes occurred since the last audited financial statements. While comfortable letters provide comfort to the banks, they do not replace the due diligence requirements of the lead manager. Verification procedures are limited to a review of minutes and interim figures rather than a full audit.
Moral Obligation
Parent companies use these instruments to signal their support for a subsidiary without committing to a full parent company guarantee. If the subsidiary defaults, comfortable letters create a reputational pressure on the parent to intervene even if no legal path for recovery exists. Lenders often accept these when the parent is prohibited from issuing new debt or guarantees by existing loan covenants.
Wording Nuance
Legal disputes often center on whether the phrasing of the letter constitutes a promise or a mere statement of current policy. Use of the term comfortable letters in a commercial context usually indicates a weak level of support that stops short of a binding commitment. Courts look for words like undertake or agree to determine if the document has crossed into the territory of a contract.