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Section 17-43.Opening Judgment upon Default or Nonsuit

Current through August 12, 2025 (2026 Practice Book edition) · Last verified July 9, 2026

In one sentenceA judgment or decree entered on a default or nonsuit may be opened within four months of the notice date if the moving party shows reasonable cause, or a good cause of action or defense, plus a reasonable excuse for not appearing or prosecuting.

Full Text of Section 17-43

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(a) Any judgment rendered or decree passed upon a default or nonsuit may be set aside within four months succeeding the date on which notice was sent, and the case reinstated on the docket on such terms in respect to costs as the judicial authority deems reasonable, upon the written motion of any party or person prejudiced thereby, showing reasonable cause, or that a good cause of action or defense in whole or in part existed at the time of the rendition of such judgment or the passage of such decree, and that the plaintiff or the defendant was prevented by mistake, accident or other reasonable cause from prosecuting or appearing to make the same. Such written motion shall be verified by the oath of the complainant or the complainant’s attorney, shall state in general terms the nature of the claim or defense and shall particularly set forth the reason why the plaintiff or the defendant failed to appear. The judicial authority shall order reasonable notice of the pendency of such written motion to be given to the adverse party, and may enjoin that party against enforcing such judgment or decree until the decision upon such written motion.
(b) If the judicial authority opens a nonsuit entered pursuant to Section 17-31, the judicial authority as part of its order may extend the time for filing pleadings or disclosure. (See General Statutes § 52-212.)

Amendment History

(P.B. 1978-1997, Sec. 377.)

Plain-English Summary

This section governs reopening a judgment or decree already rendered on a default or nonsuit. The written motion to open must be filed within four months following the date notice of the judgment was sent, and the judicial authority may reinstate the case on the docket on terms as to costs that it deems reasonable. The moving party must show either reasonable cause, or that a good cause of action or defense — in whole or in part — existed at the time judgment entered, and that the plaintiff or defendant was prevented from prosecuting or appearing by mistake, accident, or other reasonable cause. The motion must be verified by oath of the moving party or their attorney, must state in general terms the nature of the claim or defense, and must particularly set out the reason the party failed to appear. The judicial authority orders reasonable notice of the motion to the adverse party and may enjoin that party from enforcing the judgment or decree until the motion is decided.

When the judicial authority opens a nonsuit entered under Section 17-31, it may, as part of its order, extend the time for filing pleadings or disclosure. This is one of the most frequently used mechanisms for undoing a default or nonsuit judgment, but it comes with a hard four-month outer limit measured from when notice of the judgment was sent, not from the date of judgment itself.

Frequently Asked Questions

How long does a party have to move to open a default judgment in Connecticut?

The written motion must be filed within four months succeeding the date notice of the judgment was sent.

What does the moving party need to show to open a default judgment?

The party must show reasonable cause, or that a good cause of action or defense existed at the time of judgment, and that mistake, accident, or other reasonable cause prevented prosecuting or appearing.

Does the motion to open have to be sworn?

Yes. Section 17-43 requires the written motion to be verified by the oath of the moving party or that party’s attorney.

Can the judgment be enforced while the motion to open is pending?

The judicial authority may enjoin the adverse party from enforcing the judgment or decree until it decides the motion, though this is discretionary rather than automatic.

Source & verification. The section text is reproduced verbatim from the official Connecticut Practice Book (Conn. Practice Book § 17-43). Prescribed by the Judges of the Superior Court of Connecticut (Conn. Gen. Stat. Section 51-14). The plain-English summary is original and written by us. Last verified July 9, 2026. · Official source
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