All rules

Rule 325 — Notice and Intervention

(a) Notice: On or before 60 days from the date of the service of the petition, the Commissioner shall serve notice of the filing of the petition on the other individual filing the joint return and shall simultaneously file with the Court a copy of the notice with an attached certificate of service. The notice shall advise the other individual of the right to intervene by filing a notice of intervention with the Court not later than 60 days after the date of service on the other individual.

(b) Intervention: If the other individual filing the joint return desires to intervene, then such individual shall file a notice of intervention with the Court not later than 60 days after service of the notice by the Commissioner of the filing of the petition, unless the Court directs otherwise. All new matters of claim or defense in a notice of intervention shall be deemed denied. As to the form and content of a notice of intervention, see Appendix, Form 13.

(As amended and effective March 1, 2008, 130 T.C. 582. For prior history, see 120 T.C. 714–15 (2003).)

As amended through August 2024.

This is a Docket.tax digital transcription provided for reference only and may lag the very latest amendments — always confirm against the official Rules linked above. Docket.tax is an independent tool, not affiliated with, endorsed by, or operated by the U.S. Tax Court.
Docket.tax Pro

Research the U.S. Tax Court — not just the Rules

The Rules are free. A Docket.tax subscription turns the entire U.S. Tax Court into a research platform — full-text search across every rule, opinion, and order; insight into how judges and counsel actually litigate; and AI that tracks your cases for you.

  • Full-text search — every rule, opinion, order, and brief — by any phrase.
  • Counsel & Judge Search — records, caseloads, and how each judge tends to rule.
  • Docket Explorer — search the entire Tax Court docket by almost any attribute.
  • AI case timelines & calendaring — deadlines and milestones, generated automatically.
  • Opinion alerts & database — know the moment the Court acts on a case you follow.
  • Track up to 1,000 dockets — monitor your whole practice in one place.
Start your 14-day free trialSee plans & pricingBasic & Pro include a 14-day free trial · no card required on Basic.