The United States Courts of Appeals (other than the United States Court of Appeals for the Federal Circuit) shall have exclusive jurisdiction to review the decisions of the Tax Court, except as provided in section 1254 of Title 28 of the United States Code, in the same manner and to the same extent as decisions of the district courts in civil actions tried without a jury; and the judgment of any such court shall be final, except that it shall be subject to review by the Supreme Court of the United States upon certiorari, in the manner provided in section 1254 of Title 28 of the United States Code.
When any judge of the Tax Court includes in an interlocutory order a statement that a controlling question of law is involved with respect to which there is a substantial ground for difference of opinion and that an immediate appeal from that order may materially advance the ultimate termination of the litigation, the United States Court of Appeals may, in its discretion, permit an appeal to be taken from such order, if application is made to it within 10 days after the entry of such order. Neither the application for nor the granting of an appeal under this paragraph shall stay proceedings in the Tax Court, unless a stay is ordered by a judge of the Tax Court or by the United States Court of Appeals which has jurisdiction of the appeal or a judge of that court.
For purposes of subsections (b) and (c), an order described in this paragraph shall be treated as a decision of the Tax Court.
An order of the Tax Court which is entered under authority of section 6213(a) and which resolves a proceeding to restrain assessment or collection shall be treated as a decision of the Tax Court for purposes of this section and shall be subject to the same review by the United States Court of Appeals as a similar order of a district court.
In the case of any decision of the Tax Court in a proceeding under section 7478, such decision may only be reviewed by the Court of Appeals for the District of Columbia.
Nothing in section 7483 shall be construed as relieving the petitioner from making or filing such undertakings as the court may require as a condition of or in connection with the review.
The United States Court of Appeals and the Supreme Court shall have the power to require the taxpayer to pay to the United States a penalty in any case where the decision of the Tax Court is affirmed and it appears that the appeal was instituted or maintained primarily for delay or that the taxpayer’s position in the appeal is frivolous or groundless.