Rule 13.Counterclaim and cross-claim
Group III: Pleadings and Motions · Not amended since adoption on record · Last verified July 13, 2026
Full Text of Rule 13
Notes
Note: Rules 13(a) through (i) are the same as the Federal Rules on counterclaims and crossclaims. These include and expand Code §§ 15-13-420, 15-15-30, 15-15-40, 15-15-50 and 15-15-70. Counterclaims arising out of the same transaction or occurrence that is the subject of the action are "compulsory" under Rule 13(a) and are barred by res judicata or estoppel by judgment if not asserted. All other counterclaims whether legal or equitable in nature are permissive, and may be pleaded against the opposing party. Separate trials on claims not directly related to the original action may be ordered by the court under Rule 13(i). Rule 13(j) is added to conform to State practice, in which there are courts of differing jurisdiction. This Rule 13 considerably broadens present State practice as to counterclaims, but will avoid much litigation and dispute whether the counterclaim or cross-claim is allowable under the old 1870 Code practice.
Plain-English Summary
Rule 13(a) requires a defending party to raise certain claims against an opposing party now or risk losing them later: any claim arising from the same transaction or occurrence as the opposing party's claim is a compulsory counterclaim, so long as it doesn't require joining a third party the court can't reach. Two narrow exceptions excuse a party from raising it — the claim was already the subject of a separate pending suit when this action began, or the opposing party sued through attachment or similar process that didn't give the court personal jurisdiction. Rule 13(b) covers everything else: a party may raise an unrelated claim against an opponent as a permissive counterclaim, even without any connection to the transaction at issue.
Several subsections fill in the mechanics. Rule 13(c) lets a counterclaim exceed the opposing claim in amount or differ from it in kind. Rule 13(d) keeps counterclaims against the State and its officers or agencies within whatever limits the law already sets, rather than expanding them. Rule 13(e) allows a claim that matures or is acquired after the original pleading to come in later as a supplemental counterclaim, with the court's permission, and Rule 13(f) lets a party who missed a counterclaim through oversight or excusable neglect add it by amendment.
Rule 13(g) addresses cross-claims — claims by one party against a co-party — allowing them when they arise from the same transaction or occurrence as the original action or a counterclaim, or relate to property at issue in the case, including a claim that the co-party is or may be liable for part of what's already been claimed against the cross-claimant. Rule 13(h) lets new parties be joined to a counterclaim or cross-claim under Rules 19 and 20. Rule 13(i) allows separate judgments on counterclaims or cross-claims when the court orders separate trials, even if the opposing party's own claims have been dismissed. And Rule 13(j) handles a quirk of South Carolina's court structure: when a counterclaim or cross-claim filed in a court of limited jurisdiction exceeds that court's jurisdictional amount, the case transfers to circuit court upon payment of the required fees — automatically for a compulsory counterclaim, at the court's discretion for a permissive one — with a claim left behind in a court of limited jurisdiction free to be brought again later.
Frequently Asked Questions
What makes a counterclaim compulsory rather than permissive?
Rule 13(a) makes a counterclaim compulsory when it arises out of the same transaction or occurrence as the opposing party's claim and doesn't require joining a party the court can't reach; anything else is permissive under Rule 13(b).
What happens if I don't raise a compulsory counterclaim?
Missing a compulsory counterclaim can cost more than convenience — because the claim arose from the same transaction, a party who fails to raise it risks being barred from asserting it in a later, separate lawsuit.
Can a counterclaim seek more money than the original claim?
Yes. Rule 13(c) allows a counterclaim to exceed the opposing claim in amount or seek relief different in kind.
What if my counterclaim exceeds the jurisdictional limit of the court where the case is pending?
Rule 13(j) sends the case to circuit court once fees are paid — transfer happens automatically for a compulsory counterclaim, and at the court's discretion for a permissive one.
Can I add a counterclaim I forgot to include in my answer?
Rule 13(f) allows it by amendment, with leave of court, when the omission resulted from oversight, inadvertence, excusable neglect, or when justice otherwise requires it.
What's the difference between a counterclaim and a cross-claim?
A counterclaim under Rule 13(a) or (b) runs against an opposing party, while a cross-claim under Rule 13(g) runs against a co-party — someone on the same side of the case.