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United States · Delaware Superior Court

When must a Superior Court plaintiff reply to a counterclaim?

Rule 12(a) ordinarily requires a reply within 20 days after service of the answer containing the counterclaim. An ordered reply instead uses service of the order unless it directs otherwise.

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Period
20 days for the disclosed rule component
Trigger
Service of the answer containing the counterclaim
Rule
Super. Ct. Civ. R. 12(a)
Super. Ct. Civ. R. 12(a)

Official rules current as of March 20, 2026, reviewed. The calculator supports this current edition only.

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Which event starts this Super. Ct. Civ. R. 12(a) inquiry?

Service of the answer containing the counterclaim

An answer without a counterclaim does not automatically require this reply. Preserve the particular pleading served.

Responsible actor. The plaintiff responding to a counterclaim in the answer. Use the ordinary nonmail service of an answer containing a counterclaim, with no separate ordered reply, altered schedule or permitted motion.

Super. Ct. Civ. R. 12(a)

How does Rule 6 count this particular component?

  1. Use the ordinary nonmail service of an answer containing a counterclaim, with no separate ordered reply, altered schedule or permitted motion.
  2. Exclude the trigger day and count 20 calendar days under Rule 6(a). The less-than-11-day exclusion does not apply. Check the final weekend, legal holiday and actual Prothonotary availability.
  3. Check the actual holidays, additional closures and applicable electronic or paper boundary.
  4. Serve the reply to the actual counterclaim and complete the required filing. Identify any ordered affidavit requirement separately.

Rule 6(a) excludes the triggering event. Periods below eleven days exclude intermediate Saturdays, Sundays and legal holidays; longer periods include them. A final Saturday, Sunday, legal holiday or actual Prothonotary closure receives the stated next-open-day treatment. Backward notice components preserve the required minimum lead time before the scheduled event. Legal holidays include statutory days and days appointed by the Governor or Chief Justice. Good Friday and Thanksgiving Friday are Delaware holidays. The bundled calendar does not determine Sussex Return Day half-day access, additional judicial closures or actual office availability.

Rule 6(e) states a three-day addition to the prescribed period for party acts measured after service by mail. It does not apply to Court acts. These calculators use the disclosed nonmail-service component and do not implement the mail addition or determine legally effective service. An entry-based or filing-based event does not acquire a mail addition merely because a copy is mailed. Do not assume that the differently worded Chancery Rule 6(c) governs Superior Court computation.

These calculators cover the 2026 official Superior Court compilation together with the March 13, 2026 order effective March 20, 2026. Events before March 20 and backward periods crossing before that date receive no computed or paid date. This is publication coverage, not a finding that an actual act is late. Historical editions, emergency measures, changed orders and actual additional closures require separate review. Rules 141–146 govern CCLD cases and preserve general civil rules unless expressly displaced. Confirm the applicable amendment, discovery-motion, motion and briefing procedures before using an ordinary component.

Super. Ct. Civ. R. 6(a), (b), (d), (e)

What does an independently derived example show?

Fictitious example

Use the ordinary nonmail service of an answer containing a counterclaim, with no separate ordered reply, altered schedule or permitted motion. Ordinary current-edition facts, no changed order and no incoming mail service.

Example counting steps
StepWhat is countedDate
Established eventService of the answer containing the counterclaimAugust 2, 2027
Disclosed rule boundary20 days for the disclosed rule componentAugust 23, 2027
Example resultAugust 23, 2027

Fictitious current-edition facts. This is the disclosed component with no altered order or additional actual closure. It does not establish effective service, completed filing, judicial action or procedural entitlement. Incoming mail-service additions require separate review.

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Which qualifications change this procedure?

Reply ordered by the Court
Where a reply is ordered, the rule measures twenty days after service of the order unless the order directs otherwise.
Required affidavit branch
Rule 12(a)(3) addresses qualifying statutory affidavit requirements for crossclaims, counterclaims and third-party claims.
Mail service and actual court schedule
Rule 6(e) states a three-day addition to the prescribed period for party acts measured after service by mail. It does not apply to Court acts. These calculators use the disclosed nonmail-service component and do not implement the mail addition or determine legally effective service. An entry-based or filing-based event does not acquire a mail addition merely because a copy is mailed. Do not assume that the differently worded Chancery Rule 6(c) governs Superior Court computation.
Current edition and historical scope
These calculators cover the 2026 official Superior Court compilation together with the March 13, 2026 order effective March 20, 2026. Events before March 20 and backward periods crossing before that date receive no computed or paid date. This is publication coverage, not a finding that an actual act is late. Historical editions, emergency measures, changed orders and actual additional closures require separate review. Rules 141–146 govern CCLD cases and preserve general civil rules unless expressly displaced. Confirm the applicable amendment, discovery-motion, motion and briefing procedures before using an ordinary component.
Super. Ct. Civ. R. 12(a)
  • Use the ordinary nonmail service of an answer containing a counterclaim, with no separate ordered reply, altered schedule or permitted motion.
  • The base calculation does not obtain an extension, resolve a different branch or establish that the responsible actor completed the required act.

Which completed acts and evidence should be preserved?

Questions about Super. Ct. Civ. R. 12(a)

When must a Superior Court plaintiff reply to a counterclaim?

Must every answer receive a reply?

No. Rule 7(a) limits permitted pleadings and separately permits the Court to order a reply.

Super. Ct. Civ. R. 7(a)

Does an ordered reply always have twenty days?

No. The ordinary twenty-day order-service branch expressly yields to a different direction in the order.

Super. Ct. Civ. R. 12(a)

Does the counterclaim filing date control?

The ordinary reply branch runs from service of the answer containing the counterclaim.

Super. Ct. Civ. R. 12(a)

Official Superior Court sources and edition review

Provisions used (12)
Provisions used in this guide
ProvisionPurpose
Super. Ct. Civ. R. 12(a)The particular actor, event, procedural act and rule conditions
Super. Ct. Civ. R. 12(a)The separately identified counting, filing, procedural qualification or edition source
Super. Ct. Civ. R. 12(a)(3)The separately identified counting, filing, procedural qualification or edition source
Super. Ct. Civ. R. 7(a)The separately identified counting, filing, procedural qualification or edition source
Super. Ct. Civ. R. 6(a), (b), (d), (e)The separately identified counting, filing, procedural qualification or edition source
Super. Ct. Civ. R. 5 and 79.1The separately identified counting, filing, procedural qualification or edition source
1 Del. C. § 501(a)–(c)The separately identified counting, filing, procedural qualification or edition source
Superior Court rule editions and amendmentsThe separately identified counting, filing, procedural qualification or edition source
March 13, 2026 amendment order, effective March 20The separately identified counting, filing, procedural qualification or edition source
August 13, 2025 amendment order, effective September 1The separately identified counting, filing, procedural qualification or edition source
Administrative Directive 2015-6 preserving the eFile proceduresThe separately identified counting, filing, procedural qualification or edition source
Administrative Directive 2007-6, electronic filing and serviceElectronic filing and service procedures preserved by Administrative Directive 2015-6
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