The main disadvantages of mediation compared to arbitration come down to one thing: a mediator has no power to decide anything. Arbitration ends with a binding ruling. Mediation ends only if both sides agree to end it, and if they don’t, you leave with nothing to show for the time and money you spent. Everything else that goes wrong with mediation flows from that gap between a facilitated conversation and an enforceable award.
Mediation Can End With No Resolution
A mediator’s job is to keep the conversation moving, suggest compromises, and help each side understand the other’s position. What a mediator cannot do is force a result. If either party refuses to move, the process ends and the dispute sits exactly where it started.
That risk is not theoretical. The Southern District of New York’s mediation program reported that only 65% of cases referred to mediation reached a settlement in 2022.1U.S. District Court for the Southern District of New York. Mediation Program Annual Report 2022 Roughly one in three cases walked out with nothing settled.
Arbitration removes that uncertainty. The arbitrator hears the evidence and issues an award. Even if one side skips the hearing or refuses to cooperate, a decision still comes down.
A Failed Mediation Isn’t Free
You paid the mediator. You prepared your case. You sat through the sessions. When mediation collapses without an agreement, none of that carries forward. You start over in arbitration or court, paying for a second process on top of the first.
Per hour, mediation is cheaper than an arbitration hearing. That math only holds when mediation works. When it doesn’t, you have essentially paid twice for what a single arbitration would have resolved. Experienced parties sometimes skip mediation entirely when they believe the other side has no genuine interest in compromise.
No Authority to Compel Anyone
A mediator has no enforcement power. If the other party shows up late, withholds information, lowballs every offer, or stops responding, the mediator can encourage better behavior but cannot punish bad faith. Even in court-ordered programs, the mediator usually cannot report stonewalling to the judge, because confidentiality rules prevent it.
An arbitrator operates differently. Under federal law, an arbitrator can summon witnesses in writing and require them to bring relevant documents. If someone ignores the summons, the arbitrator can petition a federal district court to compel attendance or hold the person in contempt.2Office of the Law Revision Counsel. 9 U.S. Code 7 – Witnesses Before Arbitrators; Fees; Compelling Attendance That authority keeps people honest in ways a mediator cannot.
No Discovery, No Way to See What the Other Side Has
In mediation, you know only what the other party chooses to share. There is no mechanism to demand documents, require financial disclosures, or depose witnesses. If relevant information is being hidden, the mediator cannot order it produced. You may end up settling based on an incomplete picture.
Arbitration provides at least some discovery. Arbitrators can subpoena witnesses and order document production under the Federal Arbitration Act.2Office of the Law Revision Counsel. 9 U.S. Code 7 – Witnesses Before Arbitrators; Fees; Compelling Attendance Arbitration discovery is typically narrower than full courtroom litigation, but it is far more than what mediation offers. For disputes that turn on financial records, communications, or technical data the other side controls, that difference decides the case.
Power Imbalances Shape Every Offer
Mediation is negotiation, and negotiation favors whoever has more leverage. An individual employee mediating against a corporate legal department, or a small contractor across the table from a well-funded developer, feels that imbalance in every counteroffer. A mediator can manage the process, but a mediator is not a judge. No one in the room is evaluating the merits of your claim or telling the other side its position is legally weak.
Arbitration handles this structurally. The arbitrator decides based on the evidence and the strength of each side’s case, not on who has more patience or deeper pockets. A well-supported claim wins even when the claimant has fewer resources.
A Settlement Is a Contract; an Award Is Nearly a Judgment
Even when mediation works, what you take home is a settlement agreement, which is a contract between private parties. If the other side later stops paying or otherwise ignores the terms, your remedy is a breach-of-contract lawsuit. That means hiring a lawyer, going to court, and proving the breach all over again.
An arbitration award sits on firmer ground. Under federal law, any party can apply to a district court to confirm the award within one year, which turns it into an enforceable court judgment.3Office of the Law Revision Counsel. 9 U.S. Code 9 – Award of Arbitrators; Confirmation; Jurisdiction; Procedure Once confirmed, it carries the same weight as any other judgment, so you can pursue wage garnishment, bank levies, or liens without relitigating the underlying dispute. The grounds for overturning a confirmed award are narrow, limited to situations like fraud, arbitrator corruption, or the arbitrator exceeding the authority granted in the parties’ agreement.4Office of the Law Revision Counsel. 9 U.S. Code 10 – Same; Vacation; Grounds; Rehearing Courts do not review whether the arbitrator got the facts or the law right.
Confidentiality Can Cut Against You
Mediation’s confidentiality protections are strong. Federal Rule of Evidence 408 keeps statements made during settlement negotiations out of later proceedings as evidence.5Legal Information Institute (LII) / Cornell Law School. Rule 408 – Compromise Offers and Negotiations In the thirteen states that have adopted the Uniform Mediation Act, mediation communications are privileged, so parties can refuse to disclose them and block others from doing so in later proceedings.6Uniform Law Commission. The Uniform Mediation Act – A Summary Many other states have their own confidentiality statutes.
That privacy is usually sold as a benefit. It has a real downside. Confidentiality shields repeat offenders. A company that quietly settles harassment claims through mediation, year after year, keeps each case invisible. No public record. No visible pattern. Future claimants cannot point to prior settlements as evidence of anything.
There is also a tactical cost. If mediation fails and you move on to arbitration or court, you generally cannot use what the other side said or conceded during the sessions. An admission that would have helped your case disappears behind the privilege. The Uniform Mediation Act carves out narrow exceptions for threats of bodily harm, evidence of abuse or neglect, and situations where a party used mediation to plan a crime.6Uniform Law Commission. The Uniform Mediation Act – A Summary Outside those, what happens in mediation stays there, whether that helps you or not.
When These Disadvantages Matter Most
Not every dispute feels these weaknesses equally. Mediation’s disadvantages hit hardest when the other party has significantly more resources or information than you do, when you suspect the other side is concealing something, when you need an enforceable ruling rather than a voluntary agreement, or when accountability matters as much as payment. In those situations, arbitration’s authority to compel participation, gather evidence, and produce a binding, enforceable award is the difference between resolving a dispute and simply discussing one.