What is a commitment letter?

Claudia AinsleyWritten byClaudia Ainsley
Reviewed byMatt Leeburn
Updated 26 Aug 2026

A commitment letter is a document from a lender confirming it will provide a specified amount of finance on stated terms, subject to listed conditions being met before drawdown.

Also known as: letter of commitment, loan commitment letter, funding commitment

Key points

  • It sits between the term sheet and the full loan agreement, recording the amount, fees, security requirements and conditions precedent.
  • Parts are usually binding (confidentiality, exclusivity, commitment fees) while pricing marked 'indicative' or 'subject to credit approval' is not.
  • If the conditions precedent are not met by the expiry date, the lender can usually withdraw without liability.
  • A commitment fee is often charged on undrawn amounts for keeping the facility available; break fees may apply if you cancel.
  • Watch for open-ended conditions with no timeline, broad lender discretion to refuse to lend, uncapped warranties and hidden break fees.

Where a commitment letter fits

Whether a commitment letter is binding

Key clauses and conditions precedent

Example

Not to be confused with

Facility letter
a facility letter records the terms the lender is offering and is often binding only in part until the facility agreement is signed, while a commitment letter is the lender's commitment to fund subject to its conditions precedent
Drawdown
drawdown is the moment the funds are actually advanced; the commitment letter is the promise to make them available once its conditions are met

Frequently asked questions

Is a commitment letter the same as an offer letter?

Not always. An offer letter or letter of offer usually records the terms the lender proposes and is often binding only in part until the facility agreement is signed. A commitment letter goes further: the lender commits to fund, subject to the conditions precedent it lists. Read the wording rather than the title.

How long does a commitment letter last?

Until its expiry date, which the letter states along with any mechanism for extending it in writing. If the conditions precedent have not been satisfied by then, the lender can withdraw. Treat the expiry date as the deadline for board approvals, due diligence, security documents and insurance.

Can a bank change the terms after issuing a commitment letter?

Only if the letter reserves that right, or if conditions precedent require further approvals such as final credit approval. Where the terms were unconditional, changing them may be a breach. This is why the binding and non-binding parts of the letter need to be read carefully before you rely on it.

What is a commitment fee?

A fee the lender charges for reserving the facility, usually calculated on the undrawn portion for the period it is held available. Borrowers often negotiate to reduce or remove it on fully drawn amounts, or to tier it. Break fees are separate and may apply if drawdown is cancelled.

What do I need to deliver to draw down the funds?

Typically the executed loan and security documents, evidence of corporate approvals and capacity, PPSR registration details for any security, insurance certificates, valuations and confirmation there has been no material adverse change since signing. The letter's schedule of conditions precedent is your checklist.

Go deeper

Sources

This article is general information only and is not financial advice.