Is Arbitration Private? Confidentiality in Ontario Arbitration Proceedings

One of the reasons parties choose arbitration over a lawsuit is the expectation of privacy. Unlike a court file, an arbitration doesn't automatically become part of the public record — no open courtroom, no reporters in the gallery, no case searchable by anyone with a computer. But "more private than court" and "guaranteed confidential" are not the same thing, and the difference matters if you're negotiating an arbitration clause or already in one.

This guide walks through what arbitration confidentiality in Ontario usually covers, where that protection actually comes from, and the situations where it can be narrower than people assume.

Why Arbitration Is Different From Going to Court

Litigation in Ontario's courts is, as a general rule, public. Court proceedings and the resulting records are generally open, which is a deliberate feature of the justice system — the public and press can generally see how disputes are resolved. Arbitration works differently: it's a private, contractual process the parties opt into instead of the default court system, and it's generally understood to be private and its awards generally confidential, unlike a court judgment.

That contrast — litigation as public, arbitration as private — is the starting point for most disputes about whether arbitration should be, or was properly kept, confidential.

What Confidentiality in Arbitration Usually Covers

When parties treat their arbitration as confidential, that typically extends to:

• The existence of the dispute itself
• Documents and evidence exchanged during the process
• What's said at the hearing
• The arbitrator's reasoning and the final award

None of this is automatic just because a dispute happens to be resolved outside court — it depends on what the parties actually agreed to.

Where Arbitration's Privacy Actually Comes From

Confidentiality in arbitration isn't guaranteed by a single blanket rule. It typically comes from a combination of:

• The arbitration agreement itself — many arbitration clauses and institutional arbitration rules include an express confidentiality provision, which is the strongest and clearest source of protection.
• General expectation and practice — Ontario's Arbitration Act, 1991 governs private domestic arbitration agreements and awards, and the overall framework is built around arbitration functioning as a private alternative to litigation, with limited routes back into the public court system.
• Professional norms — arbitrators generally treat the process as confidential as a matter of professional practice, separate from what any specific contract says.

Because the strongest protection comes from contract language, an arbitration clause that says nothing about confidentiality leaves the point more open to argument than one that spells it out.

When Arbitration Confidentiality Can Be Lost

• Enforcing or challenging the award in court. If a party has to go to court to enforce an award, or to ask a court to intervene, that court proceeding is generally public unless a judge agrees to seal specific material — meaning some details of a once-private arbitration can become part of a public court file.
• No confidentiality clause at all. If the arbitration agreement is silent, the parties are relying on general expectation and practice rather than an explicit, enforceable promise — a weaker position if a dispute about disclosure arises.
• Legal or regulatory disclosure obligations. A party bound by other disclosure duties (to a regulator, an insurer, or under public company reporting obligations, for example) generally can't use arbitration confidentiality to escape those separate obligations.
• Mutual consent to disclose. Parties can always agree to waive confidentiality for a specific purpose.

Arbitration vs. Litigation at a Glance

Frequently asked questions