The Most Favoured Nation Clause: What It Means and How to Negotiate It (2026)

What a most favoured nation clause does A most favoured nation clause, usually shortened to MFN, promises one party that it will get terms at least as good as the best terms the other party gives to anyone else. If a supplier gives a lower price, a better discount or a more generous term to another customer, the MFN clause means that benefit must be extended to the protected party too. The name comes from international trade, but the clause is now common in commercial contracts. The core promise is about not being treated worse than others. A customer with an MFN on price is protected against discovering that a competitor bought the same thing cheaper. An investor with an MFN on terms is protected against a later investor getting better rights. A licensee with an MFN is protected against a rival licensee getting a better deal. MFN clauses appear in many settings: procurement and supply contracts on price, investment side letters on investor rights, licensing and content deals, and distribution agreements. The exact benefit protected, price, rights, or whole terms, is defined by the clause. ## Why the clause matters An MFN is really about equal or better treatment over time. Markets move, and a party that signs today worries that a later counterparty will get a better deal tomorrow. The MFN removes that worry by guaranteeing that the protected party automatically receives any better terms given to others, so it never ends up the worst treated customer or investor on the book. For the party giving the MFN, it is a serious constraint. Every future deal must be measured against the MFN promise, because offering a better term to one party can trigger an obligation to pass it to the protected party too. That limits flexibility to tailor deals and can make it harder to win new business on sharper terms. ## Sample wording A price MFN in a supply contract reads: ```

Most Favoured Nation (price) The Supplier warrants that the prices charged to the Customer under this Agreement are, and during the term will remain, no less favourable than the prices the Supplier charges any other customer for substantially similar products in substantially similar volumes and on substantially similar terms. If the Supplier offers more favourable prices to any such customer, it shall promptly notify the Customer and extend those prices to the Customer for the remainder of the term. An investor terms MFN in a side letter reads: Most Favoured Nation (investor terms) If the Fund grants to any other investor of the same or a smaller commitment any term more favourable than those granted to the Investor, the Fund shall notify the Investor and offer the Investor the benefit of that more favourable term.

- A broad all terms MFN that no one can realistically monitor, so the clause is honoured in the breach.
- Competition law exposure. In some markets, MFN clauses, especially wide or platform wide ones, have attracted scrutiny from competition regulators because they can keep prices high and soften competition. This is a real risk, not a theoretical one.
- No transparency mechanism, so the protected party can never actually tell whether a better term was given.
- No carve outs for the giving party, freezing its ability to run promotions or do differently sized deals.
- MFNs on both sides of a market, or across a platform, which raise the strongest competition concerns. ## How jurisdiction changes things MFN clauses are generally lawful as a matter of contract, but competition and antitrust law is the key overlay and it differs by market. Competition authorities in the European Union and the United Kingdom have investigated and in some cases restricted MFN or price parity clauses, particularly those used by online platforms, because of concerns that they dampen price competition. In the United States, MFN clauses have faced antitrust scrutiny in certain sectors. In India, the Competition Act and the Competition Commission of India assess arrangements that may have an appreciable adverse effect on competition, which can reach some MFN arrangements. Because the competition analysis is fact specific, treat this as general information and take qualified legal advice before using a broad MFN, especially in a platform or market wide context. An MFN is a simple promise with complex consequences. Define the comparator tightly, build in a way to verify it, and check the competition law position before you rely on it. --- Checking whether an MFN comparator is tight enough, tracking which contracts carry MFN obligations across a portfolio, and keeping every version of a side letter straight are easier when your contracts and their key terms sit in one place. [Adira](https://adiralaw.com) is built around that single workspace idea for business contracts, surfacing key terms and obligations, with Indian law deepest today. For understanding the clause itself, the explanation above is enough.