I have just revised the working draft discussion relating to third-party subpoenas. (Practitioner Ed. p. 572; Student Ed. p. 394. As revised, the text and footnotes (not in Student Ed.) are (with redline for changes and one strikeout; note footnote numbers are for this posting but will change in the 2025 Practitioner Ed.):
TrialSubpoenas (both for testimony or for documents or things) may be used for discovery. Section 7456(a)(1) permits Tax Court judges and some officers to issue subpoenas compelling “the attendance and testimony of witnesses, and the production of all necessary returns, books, papers, documents, correspondence, and other evidence, from any place in the United States at any designated place of hearing.” As interpreted in orders, subpoenas may have a return date in advance of the trial calendar in which the case is to be tried.n1 Indeed, discovery subpoenas for a return date at the calendar session for trial may irritate the judge if the discovery should have occurred before the trial calendar, which may cause the judge to quash the subpoena.n2 These discovery subpoenas are used to compel third-party testimony or production of documents; discovery from the taxpayer-petitioner is pursued through the informal and formal discovery procedures (such as request for production, interrogatories, etc.), preceded by a Branerton request. The depositions or documents may be used at trial with the proper predicate (which may be by stipulation); either party may still desire to issue a trial subpoena in order to ensure that the documents can be admitted.
n1 Production in advance of the trial setting may be more efficient to manage the documents and trial. The Tax Court may issue an order for return on the subpoena in advance of the trail session, permitting subpoenaed testimony. Ubiquiti, Inc. v. Commissioner (T.C. Case No. 22581-22 Dkt. # 54 Order dtd. 5/12/25) (Judge Lauber, citing North Donald LA Property LLC v. Commissioner (Order T.C. Dkt. 24703-21 #52 10/14/22), said: “For more than four years this Court has been conducting regularly-scheduled document subpoena hearings on virtually every Wednesday during the calendar year. The purpose of this well-established procedure is to set a hearing date in advance of trial at which document subpoenas may be returnable under Rule 147(a). Neither section 7456(a) nor Rule 147(c) requires that a case be calendared for trial as a precondition to the convening of a document subpoena hearing.”).
Section 301 of The Taxpayer Assistance Act (“TAS”), a bipartisan bill in the Senate in 2025, would eliminate the “at any designated place of hearing,” that was read by some to require the return date at the trial setting (a reading that, as noted in the preceding paragraph is rejected). The Section-by-Section discussion of the proposal explains that, under present law, the Tax Court does not have “express authority to issue a third-party subpoena for the production of documents before or in the absence of a hearing date”; the discussion indicates that the wording of § 301 grants the express authority presumably by eliminating the language that had been misread by some.
n2 See YA Global Investments, LP v. Commissioner (Docket Nos. 14546-15, 28751-15 Order dtd. 10/1/20) (holding that trial subpoenas for documents were used for improper discovery). See Samantha Galvin, A Tax Court Procedural Anomaly: the Trial Subpoena Duces Tecum, Designated Orders July 29 – August 2 (Procedurally Taxing Blog 9/24/19) (discussing unpublished order in Cross Refined Coal, LLC, v. Commissioner (Dkt 19502-17 Order Dtd. 8/1/19)).
A pdf of the changes is here (note that the footnote numbers are not final).