Clause primer
Most-favored-nation (MFN) clause
Promises a party that it will receive pricing or terms at least as favorable as those the other party gives to comparable customers.
Legal information, not legal advice. What a clause does depends on its exact words, the rest of the agreement and the governing law.
Also called: most-favored-customer clause, MFN pricing clause, price parity clause, best pricing clause. Where you find it: Supply and procurement agreements, SaaS and software licenses, distribution and reseller agreements, and some licensing agreements.
SAMPLE CLAUSE (INVENTED FOR THIS PRIMER)
If, during the Term, Supplier provides to any other customer purchasing substantially similar Products in similar or lower volumes on substantially similar terms a lower unit price than the price then in effect under this Agreement, Supplier will promptly notify Customer and extend the lower price to Customer, effective from the date it was first provided to the other customer. Once each contract year, Supplier will deliver an officer's certificate confirming compliance with this Section. This Section does not apply to one-time promotional pricing, pricing to Supplier's affiliates or pricing required by law. Customer may, at its own expense and no more than once per year, have an independent accountant verify compliance.
How it works
Comparison class
The words "substantially similar Products in similar or lower volumes on substantially similar terms" define which other customers count. This is the center of the clause, since a narrow comparison class makes the promise easy to keep and a broad one makes it hard. Check whether the comparison is to unit price alone or to overall terms.
Trigger and remedy
The clause is triggered when a lower price is provided to another customer, and the remedy extends that price back to the date it was first given. Some MFNs apply going forward only, while others require refunds of past overpayments, which can create significant exposure.
Certification and audit
The officer's certificate and audit right are the protected party's main ways to learn of a breach, since it usually cannot see other customers' pricing. Scope, frequency, cost and confidentiality of audits are often negotiated.
Exclusions
Carve-outs for promotions, affiliates and legally required pricing narrow the clause. Other common exclusions cover government customers, pilots and bundled deals.
Why it is there
The clause gives a buyer some assurance that it is not paying more than similar customers, which matters most when the buyer commits early or for a long term. For the party giving the promise, the clause limits future pricing flexibility because a discount to one customer may have to be extended to others. The scope of the comparison class and the exclusions usually decide what the clause is worth.
How it works with other clauses
- Confidentiality obligations owed to other customers can limit what the supplier may disclose in a certificate or audit.
- Price increase and adjustment provisions should be read together with the MFN to see which controls if they conflict.
- A general audit clause elsewhere in the agreement may already cover, or conflict with, an MFN audit right.
Negotiating it
Who it protects: The party receiving the promise, usually the customer or buyer.
If it protects you
- A comparison class broad enough to be meaningful, measured by product and volume without requiring identical terms.
- Retroactive adjustment or refunds back to the date the better price was first given.
- A certification obligation and an audit right, with cost-shifting if a material shortfall is found.
If it runs against you
- Standard ask: delete the MFN or replace it with a fixed price or a cap on price increases.
- Fallback: limit it to price only, going forward only, and to customers buying the same product in the same or lower volume on materially the same terms.
- Add exclusions for promotions, pilots, government customers, bundles and existing contracts.
Escalate before accepting: An MFN covering all terms across all customers, with retroactive refunds and unrestricted audit access to other customers' contracts, creates open-ended exposure and conflicts with other confidentiality duties, and should be escalated.
What AI explanations get wrong
- Treating the clause as a promise of the lowest price available anywhere. Check: identify the comparison class and exclusions before describing what the customer is entitled to.
- Missing whether the remedy applies going forward or retroactively. Check: read the effective date of any adjustment and whether refunds or credits are owed.
- Ignoring how compliance is verified. Check: look for certification and audit language, since without them the protected party may have no practical way to learn of a breach.
Where the law varies
Interpretation of an MFN clause depends on the governing law and the exact wording, and antitrust or competition law can affect these clauses in some markets or where a party has significant market power. Some regulated sectors also have specific rules on price parity, so the industry and jurisdiction should be checked.
TOOLS
Need a primer like this for a clause in front of you? The Clause Primer Kit, included in All-access, produces one in this format inside the AI tool you already use, with checks built in. For reviewing whole agreements, see the SaaS and Vendor Agreements Pack.