OPINION
WRIGHT, Judge:This matter is before the Court on petitioner’s motion for protective order filed on July 6, 1990. Petitioner seeks a protective order under Rule 1031 to restrict respondent’s use of information obtained through administrative summonses.
By notices of deficiency dated October 10, 1989, respondent determined the following deficiencies in and additions to petitioner’s Federal income tax:
_Additions to tax_
Year Deficiency Sec. 6653(a)(1) Sec. 6653(a)(2) Sec. 6661
1983 $37,060 $1,853 1
1985 6,608,527 330,426 1 $1,652,132
1 50 percent of the interest due on the deficiencies.
In a petition filed on December 29, 1989, petitioner seeks a redetermination of the deficiencies for both taxable years. Petitioner resided in Dallas, Texas, when she filed her petition. In her petition, petitioner states that on November 29, 1985, petitioner, along with certain other individuals and trusts (the transferors), exchanged Mary Kay Cosmetics, Inc., common stock for: (1) Common or preferred stock of Mary Kay Holding Corp.; and (2) long-term notes of Mary Kay Holding Corp. (this transaction will hereinafter be referred to as the exchange).
In the exchange, petitioner received 131,079 shares of Mary Kay Holding Corp. common stock and $10,669,951.10 of long-term notes for 1,399,230 shares of Mary Kay Cosmetics, Inc., common stock. Immediately after the exchange the transferors owned 100 percent of all common and preferred stock of Mary Kay Holding Corp. Petitioner reported on a schedule attached to her Federal income tax return for 1985 that the Mary Kay Holding Corp. long-term notes and common stock were received in a transaction qualifying for nonrecognition treatment under section 351.
On December 5, 1985, MKCI Acquisition Corp. was merged into Mary Kay Cosmetics, Inc. MKCI Acquisition Corp. was a wholly owned subsidiary of Mary Kay Corp., which in turn was a wholly owned subsidiary of Mary Kay Holding Corp. In the merger, the shareholders of Mary Kay Cosmetics, Inc., other than Mary Kay Holding Corp., received cash and debentures of Mary Kay Corp. in exchange for their shares of Mary Kay Cosmetics, Inc. (this transaction will hereinafter be referred to as the leveraged buyout).
After the merger, Mary Kay Cosmetics, Inc., was a wholly owned subsidiary of Mary Kay Corp., which in turn was a wholly owned subsidiary of Mary Kay Holding Corp. Approximately $16,609,890 in expenses was incurred by Mary Kay Cosmetics, Inc., in connection with the leveraged buyout.
During June of 1989, respondent began an examination of Mary Kay Corp.’s Federal income tax return for taxable year 1985. As of the date petitioner’s motion for protective order was filed, no notice of deficiency had been issued to Mary Kay Corp.
During August of 1989, respondent began an examination of petitioner’s Federal income tax return for taxable year 1985. In his notice of deficiency for taxable year 1985, respondent determined that petitioner had received dividends in the amount of the distributed Mary Kay Holding Corp. notes, or $10,669,951. Respondent also determined that petitioner had received constructive dividends with respect to $2,626,061 of the MKCI leveraged buyout expenses. With respect to taxable year 1983, respondent determined that as a result of adjustments to taxable year 1985, there was no investment credit carryback to taxable year 1983 as claimed by petitioner on her Federal income tax return for that year.
The Summonses
On September 20, 1989, respondent issued an administrative summons pursuant to section 7602 to Lawrence Cox, treasurer of Mary Kay Corp., seeking certain information, testimony, and documents (the MKC summons). The MKC summons relates to the 1985 and 1986 taxable years of Mary Kay Corp. and its subsidiaries. The return date of the summons was October 18, 1989.
On October 3, 1989, respondent issued a third-party recordkeeper summons (see section 7609(a)) to Jack Morris, a partner with the accounting firm of Ernst & Young, seeking certain information, testimony, and documents (the petitioner/Morris summons). The petitioner/Morris summons relates to petitioner’s 1985 and 1986 taxable years. The return date of the summons was November 3, 1989.
Also on October 3, 1989, respondent issued another third-party recordkeeper summons to Jack Morris (the Rogers/Morris summons). The Rogers/Morris summons relates to an examination of Richard R. and Janice Z. Rogers’ 1985 and 1986 taxable years. Richard R. and Janice Z. Rogers’ Federal income tax returns for those taxable years were under examination in relation to the exchange. The testimony, information, and documents sought through the Rogers/Morris summons are identical to those sought by the petitioner/Morris summons. As did the petitioner/Morris summons, the Rogers/Morris summons had a return date of November 3, 1989.
During May and June 1990, respondent issued third-party recordkeeper summonses to officials of Morgan, Stanley & Co., Inc., Merrill Lynch Capital Markets, and Rothchild, Inc. (the adviser summonses), seeking certain testimony, information, and documents relating to Mary Kay Corp.’s 1985 and 1986 taxable years.
On October 18, 1989, the return date of the MKC summons, the treasurer of MKC provided certain documents to respondent, but withheld other documents that MKC concluded are subject to the attorney-client privilege. On November 3, 1989, the return date of both the petitioner/Morris summons and the Rogers/Morris summons, Jack Morris provided to respondent the information requested in the summonses and some of the requested documents. Morris withheld other documents on advice of counsel that such documents are subject to the attorney-client privilege.
On April 12, 1990, respondent commenced an action in the U.S. District Court for the Northern District of Texas to enforce the petitioner/Morris summons and the MKC summons. As of the date of petitioner’s motion, no action had been taken to enforce the Rogers/Morris summons or the adviser summonses.
In her motion for protective order petitioner seeks an order prohibiting respondent’s attorneys, agents, and employees engaged in representing him before this Court from obtaining access to, reviewing, or using any testimony, documents, or other information obtained pursuant to the MKC summons, the petitioner/M orris summons, the Rogers/Morris summons, and the adviser summonses after December 29, 1989, the date her petition was filed.
Discussion
As a preliminary matter we note that the enforceability of the summonses is not at issue. The parties agree that the District Court, not this Court, has jurisdiction to decide such issue. Sec. 7604. We therefore do not address the issue of whether the summonses are enforceable.
I. Tax Court Rules of Practice and Procedure
Section 7453 provides that proceedings of the Tax Court shall be conducted in accordance with such rules of practice and procedure as the Court may prescribe. Petitioner argues that respondent’s use of administrative summonses to obtain information related to the case pending before this Court allows respondent to undermine the discovery rules contained in title VII of our Rules of Practice and Procedure (Rules 70 through 76) and gives him an unfair advantage. Title VII provides rules addressing interrogatories, production of documents and things, examination by transferees, depositions upon consent of the parties, depositions without the consent of the parties, and deposition of expert witnesses.
The purpose of discovery in the Tax Court is to ascertain facts which have a direct bearing on the issues before the Court. Penn-Field Industries, Inc. v. Commissioner, 74 T.C. 720, 722 (1980). Discovery is not as broad in the Tax Court as it is in the Federal District Courts. Estate of Woodard v. Commissioner, 64 T.C. 457, 459 (1975). The discovery procedures established by our Rules in essence follow the Federal Rules of Civil Procedure (Federal Rules), but are not identical. See 60 T.C. 1097 (1973) (note accompanying Rule 70(a) (1974), which, for the first time, permitted interrogatories and requests for production and inspection of papers and other things). Thus, absent a Court order, discovery through depositions without the consent of the opposing party is not available under our Rules (with the exception of a deposition taken under Rule 75), as it is under the Federal Rules. That limitation is intentional. See 60 T.C. 1097 (1973). Unnecessarily broad discovery may cause extensive delays and jeopardize the administration, the integrity, and the effectiveness of the internal revenue laws. Penn-Field Industries, Inc. v. Commissioner, supra at 724. The discovery procedures should be used only after the parties have made reasonable informal efforts to obtain needed information voluntarily. Rule 70(a)(1); Branerton Corp. v. Commissioner, 61 T.C. 691 (1974). Under Rule 103, we may issue orders to protect persons from annoyance, embarrassment, oppression, or undue burden or expense resulting from discovery. Rule 123 allows this Court to impose sanctions, including the exclusion of evidence obtained in direct violation of an existing Court order or the Court’s Rules. Rule 1(a) provides that, where in any instance there is no applicable rule of procedure, the Court or the Judge before whom the matter is pending may prescribe the procedure, giving particular weight to the Federal Rules of Civil Procedure to the extent that they are suitably adaptable to govern the matter at hand.
II. Authorization to Issue Summonses
Respondent is authorized by sections 7602 and 7609 to issue summonses and to utilize the information obtained through them. In relevant part section 7602(a) provides that for the purpose of determining the liability of any person for any internal revenue tax the Secretary is authorized: (1) To examine any books, papers, records, or other data which may be relevant or material to such inquiry; (2) to summon the person liable for tax, any officer or employee of such person, or the person having possession, custody, or care of books of account containing entries relating to the business of the person hable for tax, or any other person the Secretary may deem proper, to appear before the Secretary and to produce such books, papers, records, or other data, and to give such testimony, under oath, as may be relevant or material to such inquiry; and (3) to take such testimony of the person concerned, under oath, as may be relevant or material to such inquiry. Section 7609(a) provides for special procedures when a summons is served on any person who is a third-party recordkeeper.
III. Prior Opinions of This Court
A. Universal Manufacturing Co. v. Commissioner
In arguing that the use of administrative summonses to obtain information relating to the pending case undermines our discovery rules, petitioner relies on Universal Manufacturing Co. v. Commissioner, 93 T.C. 589 (1989). In Universal Manufacturing Co. the taxpayers were Universal Manufacturing Co., as the successor by merger of WNC Corp. (WNC), and Delbert W. Coleman, the majority shareholder of WNC. In a petition filed with this Court on September 2, 1988, Universal Manufacturing Co. alleged that the Commissioner erred in determining that net operating loss deductions reported for its taxable years ending September 30, 1984, and September 30, 1986, were not allowable under sections 172 and 269. In a petition filed with this Court on December 12, 1988, Coleman alleged that the Commissioner erred in determining that certain moneys which WNC had treated as loans or shareholder advances should have been treated as dividends from WNC.
In Universal Manufacturing Co. an agent of the Commissioner’s Criminal Investigation Division served summonses on or about January 10, 1989, on two employees of WNC and third-party recordkeeper summonses upon two accountants for WNC. The testimony and documents sought by the Commissioner under those summonses were directly related to the matters at issue in the pending civil cases. The taxpayers moved for a protective order under Rule 103, asserting that the Commissioner’s use of administrative summonses to obtain information directly related to the issues of civil cases pending before this Court allowed him to circumvent the discovery rules contained in title VII of our Rules of Practice and Procedure and gave him an unfair advantage in the prosecution of litigation before this Court. The taxpayers urged the Court to exercise its inherent authority over the proceedings to prevent the Commissioner from utilizing in the Tax Court proceedings any information obtained pursuant to those administrative summonses.
In Universal Manufacturing Co., respondent argued that he was entitled to free and unfettered use of information developed through the administrative summonses in question. We noted that respondent chose to issue the notices of deficiency at issue and, in effect, chose to give the taxpayers the opportunity to come to this Court and invoke our Rules before his criminal investigation was completed, even though his internal administrative guidelines seemed to provide that a notice of deficiency normally would not be issued in such a situation. Universal Manufacturing Co. v. Commissioner, supra at 594. We went on to reason that the subject motion required us to reconcile two competing considerations. First, this Court has no desire to interfere in any way with respondent’s investigations into violations of the internal revenue laws. We noted that respondent has the obligation to initiate such investigations and to pursue them to completion. Second, respondent’s use of administrative summonses in a criminal case to interview third-party witnesses and obtain relevant documents concerning the issues in civil cases pending before the Court circumvents our discovery rules. Universal Manufacturing Co. v. Commissioner, supra at 594.
After balancing both considerations, the Court found that the Commissioner’s use of administrative summonses to interview third-party witnesses and obtain relevant documents concerning the issues in cases pending before the Court impermissibly undermined the Court’s discovery rules. The Court held that this was so even if the Commissioner’s motives were fully proper. The Court stated its objective in so holding was to “require respondent to present his position in the civil cases pending before us without utilizing any information obtained pursuant to an administrative summons served after the cases were docketed in this Court.” 93 T.C. at 595. The Court issued an order providing that the Commissioner was not to “obtain or use any testimony, documents or other information obtained pursuant to an administrative summons served after September 2, 1988,” the date the petition to this Court was filed. Universal Manufacturing Co. v. Commissioner, supra at 595.
B. Westreco, Inc. v. Commissioner
In addition to Universal Manufacturing Co. v. Commissioner, supra, petitioner relies on Westreco, Inc. v. Commissioner, T.C. Memo. 1990-501. In Westreco this Court held that it was justified in issuing a protective order that prevented the Commissioner’s lead trial attorney in a docketed case from further participation in an examination of a corporation and its related parties for later years concerning the same issue the Court was set to decide. In addition, the protective order prevented the use of information obtained under administrative summonses in the later years’ examination in the trial for the earlier tax years.
The taxpayer in Westreco was a second-tier subsidiary of Nestle S.A. Those two corporations and their related corporations were before the Court concerning a section 482 adjustment to the fee for contract research services paid to the taxpayer by its foreign parent corporation for the years 1978 through 1982. As the taxpayer was preparing for trial, the Commissioner was conducting an examination of the income tax returns of Nestle and its related corporations to determine if the section 482 adjustments should be made for the years 1983 through 1985.
In connection with the 1983-85 examination, the Commissioner issued a document request and administrative summonses to the taxpayer’s employees. The lead attorney for the Commissioner for the trial concerning the earlier years’ adjustments was actively participating in the later years’ examination. The taxpayer requested a protective order from this Court, concerned that the summonses and document request might be used to gather information for use in the upcoming trial, thus undermining this Court’s discovery rules.
After considering the arguments of both parties, this Court issued the requested order, applying the principles of Universal Manufacturing Co. v. Commissioner, supra. The protective order prevented the Commissioner’s lead trial attorney from further participation in the later years’ examination process and from using any information obtained in that examination in the case that was being readied for trial. The Commissioner was also required to maintain a list of all evidence obtained in the later years’ examination so that the Court could protect the integrity of its discovery rules. The Commissioner asked the Court to reconsider its order.
Upon reconsideration, the Court found that the summonses served on petitioner’s employees to appear for interviews and deliver documents in the later years’ audit were in the nature of discovery depositions. The Court reasoned that the participation of the Commissioner’s lead trial attorney for the 1978-82 deficiencies in the 1983-85 examination would give the Commissioner an unfair advantage. The Court viewed the activities of the Commissioner’s attorney and the use of later years’ summonses as an attempt to undermine the Court’s discovery rules.
The Commissioner argued that the Court lacked the power to prevent it from using the information obtained through the summonses and document request. The Court held that its authority came from two sources. One was necessarily implied from the power of the Court to prescribe rules of practice and procedure. The second source of the Court’s power was inherent in its obligation as a judicial body to protect the integrity of its processes and to regulate the proceedings and parties, or the representatives of parties, that appear before it.
The Court made clear that it was not implying that all activities of a trial attorney of the Commissioner in an audit would justify the kind of protective order it had issued in that case. The compelling facts in the case, it said in conclusion, justified the protective order it had issued. The language of the opinion is to be interpreted only in that context.
IV. Summonses Issued Prior to Filing of Petition
With regard to the summonses issued in the instant case before petitioner filed her petition with this Court (MKC summons, petitioner/Morris summons, and Rogers/Morris summons), we find that Universal Manufacturing Co. v. Commissioner, supra, is inapplicable. That case involved a summons issued after the filing of the petition.
Petitioner argues that we should extend our holding in Universal Manufacturing Co. to information obtained after the filing of her petition through the MKC summons, petitioner/Morris summons, and Rogers/Morris summons, which were issued before her petition was filed, because respondent’s purpose in issuing them was to undermine this Court’s discovery rules. First, we note that relatively few notices of deficiency result in the filing of a petition in this Court. Respondent had no way of knowing whether petitioner would file a petition. In addition, until a petition is filed, we have no basis on which to impose the rules provided for in title VII of our Rules of Practice and Procedure, and any administrative summonses issued by respondent prior thereto do not pose a threat to the integrity of our Rules. Nor will the summonses pose a threat to the administration or effectiveness of our Rules of Practice and Procedure. When the petition was filed, the parties on whom summonses were served were already under an obligation to provide the information called for pursuant to sections 7602 and 7609. Therefore, the competing considerations addressed in Universal Manufacturing Co. are not present here. If the summonses are for any reason invalid, petitioner’s remedy lies with the U.S. District Court, not here.
We deny petitioner’s motion for protective order with respect to the MKC summons, petitioner/Morris summons, and Rogers/Morris summons, which were all served prior to the filing of the petition in this case.
V. Summonses Issued After Filing of Petition
With respect to the adviser summonses, petitioner asks that we grant her motion pursuant to Rule 103. Rule 103 authorizes this Court to restrict the use of discovery procedures or information obtained through discovery when required to protect a party or other person against “annoyance, embarrassment, oppression, or undue burden or expense.” As an initial matter, we must address the issue of whether this Rule may be used to restrict a party’s use of information which is obtained through means other than our discovery rules.
Rule 103 is derived from, and for all practical purposes is identical to, Rule 26(c) of the Federal Rules. 60 T.C. 1057, 1122 (1973). Accordingly, we look to cases construing Rule 26(c) of the Federal Rules for guidance on the breadth of application of Rule 103. Willie Nelson Music Co. v. Commissioner, 85 T.C. 914, 917 (1985). Those cases uniformly hold that Rule 26(c) provides no authority for the issuance of protective orders to regulate the use of information or documents obtained through means other than discovery in the proceedings before the Court. Kirshner v. Uniden Corp. of America, 842 F.2d 1074 (9th Cir. 1988) (power to control discovery under Rule 26(c) does not extend to the issuance of a protective order preventing a party from using material obtained in a separate action, and requiring the party to return the material to the other party, even though the parties to such other action are identical); Whittaker Corp. v. Execuair Corp., 736 F.2d 1341 (9th Cir. 1984) (Rule 26(c) does not give District Court power to exclude evidence discovered in a separate antitrust action, even when such discovery occurs after the District Court’s own discovery cutoff date); Bridge C.A.T. Scan Associates v. Technicare Corp., 710 F.2d 940 (2d Cir. 1983) (where information alleged to contain trade secrets was compiled prior to commencement of lawsuit, Rule 26(c) did not give court authority to prohibit its disclosure). Thus, based on these cases we could conclude that this Court does not have the authority to issue protective orders under such Rule restricting the use of information which was not obtained through the use of the Court’s discovery procedures, but was obtained through other legal procedures. To the extent that Universal Manufacturing Co. v. Commissioner, 93 T.C. 589 (1989), may be read as applying Rule 103 more broadly, we reject such a reading. Because a ruling under Rule 103 would not be definitive here, we do not express a conclusion as to the application of that Rule to the question before us.
That is not to say, however, that this Court is powerless to regulate the processes of this Court, viz, the use in this Court of information obtained by administrative summons. It is undisputed that courts have inherent powers vested in the courts upon their creation and not derived from any statute. Eash v. Riggins Trucking, Inc., 757 F.2d 557, 561 (3d Cir. 1985) (and cases cited thereat). The Supreme Court has upheld the inherent authority of a court to enter a protective order prohibiting dissemination of information obtained through discovery, Seattle Times Co. v. Rinehart, 467 U.S. 20, 35 (1984); to control the conduct of attorneys practicing before it, Thread v. United States, 354 U.S. 278, 281 (1957); to correct that which has been wrongfully done by virtue of the court’s process, United States v. Morgan, 307 U.S. 183, 197 (1939); and, most pertinently, “over their own process, to prevent abuse, oppression and injustice.” Gumbel v. Pitkin, 124 U.S. 131, 146 (1888).
Moreover, our own rules contemplate questions of practice and procedure for which there is no applicable rule of procedure and direct the Judge before whom the matter is pending to prescribe an appropriate procedure. Rule 1(a).
As we have already stated, supra, our Rules of discovery in essence follow the Federal Rules but are not identical. Rule 26(a) of the Federal Rules (Rule 26(a)) allows, generally, nonconsensual discovery by deposition; our Rules do not. To give respondent carte blanche with regard to the admission of evidence obtained by administrative summons would, in effect, give him the full advantage of Rule 26(a), an advantage that we have withheld. We need not do so; we have the power to uphold the integrity of the Court’s process by enforcing the limited discovery that, by rule, we have adopted. Where litigation in this Court has commenced, and an administrative summons is issued with regard to the same taxpayer and taxable year, we will exercise our inherent power to enforce the limited discovery contained in our Rules. We will do so unless respondent can show that the summons has been issued for a sufficient reason, independent of that litigation. Where litigation in this Court has commenced, and an administrative summons is issued not with regard both to the same taxpayer and taxable year (for instance where the summons concerns another taxpayer or a different taxable year), normally we will not exercise our inherent power. We will exercise that power, however, when petitioner can show lack of an independent and sufficient reason for the summons. In the instant case, only the adviser summonses were issued after litigation commenced. Those summonses fall within that situation where normally we will not exercise our inherent power. Since petitioner has not shown a lack of independent and sufficient reason for the adviser summonses, we need not exercise our inherent power nor detail how that power could be exercised. Rule 1 authorizes the Judge before whom a matter is pending to prescribe an appropriate procedure. What would be appropriate would depend on how best to maintain control “over [our] own process, to prevent abuse, oppression and injustice.” Gumbul v. Pitkin, supra at 146.
Universal Manufacturing Co. presents the first situation (post-petition summons, same taxpayer, same year), and, we believe, the Court there may have concluded that there was no real prospect of a criminal investigation, although the Court did not make such a finding. Westreco, Inc. presents a different situation. The Court there stated that it found compelling facts that justified its protective order but cautioned that no implication was to be drawn that all activities of respondent’s trial counsel in an audit would justify a similar order. We note that Westreco, Inc. is a memorandum opinion, which followed Universal Manufacturing Co. While we have herein modified our opinions in Universal Manufacturing Co. and Westreco, Inc., both cases are still pending and the summons issues involved in those cases were decided without the benefit of the standards articulated herein. We therefore express no view on the outcome of such cases under the standards articulated herein, as such matters are best left to the discretion of the Judge before whom the matter is pending.
Finally, we repeat that the enforceability of the summonses is not here at issue. That is a question for the District Court, and the pendency of a Tax Court proceeding does not deprive the District Court of jurisdiction to determine such enforceability. See United States v. Gimbel, 782 F.2d 89, 93 (7th Cir. 1986); Bolich v. Rubel, 67 F.2d 894, 895 (2d Cir. 1933).
We next consider petitioner’s argument that this Court’s power to exclude the evidence in question is inherent in its obligation as a judicial body to protect the integrity of its processes and to regulate the proceedings and parties that appear before it. We already have discussed the circumstances that would allow us to regulate the proceedings as requested by petitioner and, based on the record before us, we find that the summonses in issue are not a threat to the integrity of this Court’s processes. The development of additional evidence through the summonses in issue will in fact benefit this Court’s processes because it will result in a more fully developed factual background in which to consider petitioner’s case. The additional evidence may also lead to the settlement of the case.
We also find that we are not compelled to grant petitioner’s motion in order to regulate the proceedings and parties that appear before us. Our holding in this case that a protective order is not appropriate involves legitimate and good faith summonses with respect to other years, to related taxpayers, and to related tax liabilities, and involves the absence of any other underlying facts or circumstances that would justify the issuance of a protective order in this case. Petitioner has failed to show respondent’s lack of an independent and sufficient reason for the summonses. The rule we announce herein in no way limits this Court’s exercise of its power to issue protective orders or to impose other appropriate sanctions where the underlying facts and circumstances of a particular case establish an abusive or prejudicial situation that warrants relief. If, as we proceed, an abusive or prejudicial situation becomes apparent (which petitioner has so far not shown), we will be able to regulate the proceedings regardless of the rule we announce herein.
We also note that while this Court must, of necessity, control the admission of all evidence in the pending proceeding, any proceedings regarding the enforceability of the administrative summonses will be brought before the Federal District Court, not this Court. On the other hand, if we were to grant petitioner’s motion with respect to the adviser summonses, we would then have to supervise the administrative summons process, in order to insure that none of the evidence obtained through that process was introduced into the case. The necessity of such supervision may make the regulation of the case more difficult rather than more efficient.
In conclusion, we deny petitioner’s motion for protective order. With regard to each of the summonses other than the adviser summonses, we do so since all were issued prior to commencement of the litigation herein. With regard to the adviser summonses, we do so since petitioner has not shown a lack of a sufficient, independent reason for their issuance.
In light of the foregoing,
An appropriate order will be issued.
Reviewed by the Court.
Nims, Kórner, Shields, Hamblen, Cohen, Clapp, Gerber, Jacobs, Parr, Wells, Colvin, and Halpern, JJ., agree with the majority opinion. WHALEN, J., concurs in the result only.All section references are to the Internal Revenue Code of 1954 as amended and in effect for the years in issue. All Rule references are to the Tax Court Rules of Practice and Procedure, unless otherwise indicated.