What letter of comfort means
A letter of comfort is a statement of support that stops short of a promise to pay.
A lender is considering a facility to a subsidiary. The subsidiary alone is not strong enough. The lender would like a guarantee from the parent, and the parent does not want to give one, because a guarantee is a liability that appears on its balance sheet and consumes its own credit capacity.
The compromise is a letter of comfort. The parent confirms it is aware of the facility, that it owns the subsidiary, and that it is its policy to ensure the subsidiary is able to meet its obligations. It does not promise to pay.
The intention on the parent's side is that the letter creates moral and reputational pressure rather than a legal obligation.
Whether that intention is achieved depends entirely on the words used, and the case law in this area turns on precisely that.
How it is used
The drafting distinction is between statements of fact, statements of present policy, and promises.
A statement of fact, that the parent owns the subsidiary, is verifiable and creates no future obligation, though it must be true.
A statement of present policy, that it is our policy to ensure our subsidiaries meet their obligations, describes a current position. It is not a promise about the future, and it is the classic comfort letter formulation.
A promise, that we will ensure the subsidiary meets its obligations, is a different thing. Wording of that kind has been held capable of creating a binding obligation, and a parent using it has given something closer to a guarantee than it intended.
For a parent, the drafting points are to use present tense policy statements rather than future promises, to state expressly that the letter is not intended to create legal relations and is not a guarantee, and to reserve the right to change its policy.
For a lender, the question is simply whether comfort is enough. Where it is not, the answer is a guarantee, and the negotiation should be about that rather than about strengthening a letter designed not to bind.
Key features
- A statement of support from a parent company to a lender
- Intended not to create a legally binding obligation
- Distinguished from a guarantee, which is a promise to pay
- The wording decides whether an obligation arises
- Present policy statements are safer for the parent than future promises
- Should state expressly that it is not a guarantee
How this works in Nigeria
Letters of comfort appear in Nigerian group financing and in public sector arrangements, and both settings carry the same drafting risk.
In group financing, a Nigerian subsidiary of a foreign parent, or a subsidiary within a Nigerian group, borrows on the strength of a comfort letter. The lender accepts it because the relationship matters and because calling on a parent is a commercial reality even without a legal right.
That commercial reality is the real value of the instrument. A parent that lets a subsidiary default after issuing a comfort letter damages its own standing with that lender and with the market, and lenders rely on that.
The drafting risk runs both ways. A parent that used promissory language has given a guarantee it did not price. A lender that accepted a carefully hedged letter has taken comfort and no recourse.
In public sector contexts, comfort letters and letters of support have been issued in connection with project financing, and their effect has been contested. Anybody relying on one should take advice on what it actually says rather than on what it appears to signal.
The practical position for a Nigerian lender is straightforward. If the subsidiary's own covenant is not enough, ask for a guarantee. A comfort letter is a relationship instrument, not a security one, and treating it as security is how a lender ends up with a claim against a subsidiary that cannot pay and a letter that promises nothing.
Letter of comfort vs guarantee vs indemnity
Three documents a parent might sign for a subsidiary's borrowing, in ascending order of exposure.
A letter of comfort states support without promising payment. Usually not binding where properly drafted, and its value is reputational.
A guarantee is a promise to pay the subsidiary's debt if it defaults. It is a secondary obligation, dependent on the principal debt, and defences and variations can affect it. It is a real liability.
An indemnity is a primary obligation to make good a loss, independent of the principal debt. Defences available to the debtor generally do not help, and it is harder on the person giving it than a guarantee.
A lender should ask which it is actually receiving. A parent should be equally clear about which it is giving, because the accounting and credit consequences of the second and third are entirely different from the first.
Limits and risks
For a lender, the fundamental limitation is that a properly drafted comfort letter provides no legal recourse. If the subsidiary defaults and the parent declines to help, the lender has a letter.
For a parent, the risk runs the other way: careless drafting can create the obligation it was trying to avoid, with accounting and credit consequences it never planned for.
The instrument also depends on the parent's continuing interest in the subsidiary. A parent that has decided to let a subsidiary fail is not going to be moved by reputational considerations.
And it can become stale. A letter issued three years ago, when circumstances and ownership were different, may signal nothing about the present position.
Worth knowing
If you are lending and the subsidiary cannot support the facility alone, ask for a guarantee rather than accepting a letter of comfort. A properly drafted comfort letter gives you nothing enforceable, and it is designed that way.
Questions people ask
What is a letter of comfort?
A statement from a parent company to a lender confirming awareness of and support for a subsidiary's borrowing, without promising to pay. It is usually intended not to create a legally binding obligation.
Is a letter of comfort legally binding?
Usually not where it is properly drafted using present tense policy statements. Promissory wording, such as an undertaking to ensure the subsidiary meets its obligations, has been held capable of creating a binding obligation.
How does it differ from a guarantee?
A guarantee is a promise to pay the debt if the borrower defaults, and it is a real liability with accounting and credit consequences. A comfort letter promises nothing and its value is reputational.
Why would a parent give one?
Because a guarantee is a liability that consumes its own credit capacity and appears on its balance sheet. A comfort letter provides commercial reassurance without creating that exposure.
Should a lender accept one?
Only where the borrower's own covenant is nearly sufficient and the relationship carries weight. Where the facility genuinely depends on parent support, ask for a guarantee instead.
How should a parent draft it?
Using present tense statements of policy rather than promises about the future, stating expressly that it is not a guarantee and is not intended to create legal relations, and reserving the right to change its policy.