Who has the upper hand in Tax Court, the IRS or the Taxpayer? You decide.

You are considering filing a petition with the United States Tax Court perhaps regarding your Notice of Deficiency post IRS audit. Here are a few rules of play to be aware of.

The IRS’s determinations in a notice of deficiency are generally presumed correct, and taxpayers bear the burden of proving them erroneous. Rule 142(a); Welch v. Helvering, 290 U.S. 111, 115 (1933). This puts the main hurdle on the Taxpayer. To put it in common terms, the Taxpayer is presumed guilty, not innocent (these are civil matters, not criminal so this is an analogy). Walking into Tax Court, Taxpayer must prove the IRS’s position is wrong.

All is not hopeless. However, if a taxpayer produces credible evidence with respect to one or more factual issues relevant to the taxpayer’s tax liability, the burden of proof may shift to the IRS as to that issue or issues. § 7491(a)(1). Likewise, the IRS’s determination does not receive a presumption of correctness if the determination is shown to be arbitrary and capricious. Helvering v. Taylor, 293 U.S. 507, 514 (1935); 9 [*9] Cohen v. Commissioner, 266 F.2d 5, 11 (9th Cir. 1959), remanding T.C. Memo. 1957-172. Also, the IRS bears the burden of proving new matters asserted in its answer. See Rule 142(a).

Tax Court proceedings are conducted in accordance with the Federal Rules of Evidence. § 7453; Rule 143(a).

Section 7491(a)(1) provides that if, in any court proceeding, a taxpayer introduces credible evidence with respect to any factual issue relevant to ascertaining the liability of the taxpayer for any tax imposed by subtitle A or B, the IRS shall have the burden of proof with respect to that issue. See Higbee v. Commissioner, 116 T.C. 438, 440–41 (2001). For the burden to be placed on the IRS under this section, however, the taxpayer must demonstrate that he has: (1) complied with the requirements under the Code to substantiate any item, (2) maintained all records required under the Code, and (3) cooperated with reasonable requests by the Secretary for witnesses, information, documents, meetings, and interviews. See § 7491(a)(2); Higbee, 116 T.C. at 440–41.