Mississippi Justice Court Counterclaim: How to File and What to Know

When a Counterclaim Makes Sense

A counterclaim is your own demand for money against the person who sued you. In Mississippi Justice Court, this comes up often: a contractor sues a homeowner for unpaid work, and the homeowner says the contractor owes them for botched repairs. A landlord sues for unpaid rent, and the tenant says the landlord owes them for an unreturned security deposit.

RJC Rule 16 governs counterclaims in Justice Court. The rule says counterclaims and setoffs "shall be liberally allowed" — the court leans toward letting defendants assert them.

How to File

Filing a counterclaim in Mississippi Justice Court requires three steps:

1. Write your claim. Prepare a written statement describing what the plaintiff owes you and why. Include the case number from the original lawsuit.
2. Pay the filing fee. The standard civil filing fee is $45 (Miss. Code § 25-7-25) plus a $5 legal assistance fund deposit. Constable service fees run $30 to $45.
3. Serve the plaintiff. The Justice Court Clerk arranges for a constable or process server to deliver a copy to the plaintiff under RJC Rule 14.

There's no official counterclaim form in most Mississippi counties. You're drafting a written statement of claim, similar to what the plaintiff filed against you. The clerk can tell you the format their court accepts, though they can't help you write it.

The $3,500 Ceiling

Justice Court jurisdiction caps at $3,500 in principal demand under Miss. Code § 9-11-9. This ceiling applies to counterclaims too.

If your counterclaim exceeds $3,500, the Justice Court judge must dismiss it without prejudice under RJC Rule 16. The Justice Court cannot transfer an over-limit counterclaim to County or Circuit Court or consolidate it in a higher court. You'd need to file a separate, independent lawsuit in a court with jurisdiction over the amount.

This means a $4,500 counterclaim doesn't just get trimmed to $3,500. It gets thrown out entirely (without prejudice, so you can refile in the right court).

Counterclaims Are Permissive, Not Compulsory

Here's a major difference between Justice Court and Circuit Court. Under the Mississippi Rules of Civil Procedure (MRCP Rule 13(a)), Circuit Court defendants must assert any counterclaim arising from the same transaction — fail to bring it and you may lose the right to sue on it later.

Justice Court works differently. RJC Rule 16 explicitly states that failing to assert a counterclaim in Justice Court does not bar a later independent action on that claim. If you choose not to file a counterclaim now, you can still bring a separate lawsuit later.

This matters strategically. If your claim is over $3,500 (and would get dismissed without prejudice anyway), or if you're not ready to prove it yet, you can focus on defending the current case and file your own suit separately.

Timeline and Preparation

File the counterclaim with the Justice Court Clerk well before the hearing date. The plaintiff needs to be served and given adequate time to prepare. If you file too close to trial, the judge may grant the plaintiff a continuance.

At trial, you'll need to present evidence supporting your counterclaim just as the plaintiff presents evidence for their claim. Bring three copies of every document — one for the judge, one for the other party, one for yourself.

For a detailed walkthrough of the counterclaim process and all your other options as a Mississippi Justice Court defendant, the Mississippi Small Claims Response Guide covers it step by step.

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