Once the appellate process is complete and the judgment becomes final, it is binding and enforceable. If the taxpayer ultimately prevails, the IRS generally releases collection actions, such as liens or levies, to the extent required by the final judgment. If the government ultimately prevails, the case is returned to the Tax Court or, if necessary, the district court for entry of a decision consistent with the appellate court’s ruling. The IRS may then proceed with collection based on that final decision.
In cases involving international structures, post-judgment compliance may require coordination with foreign tax authorities to give effect to competent authority agreements or Mutual Agreement Procedure (MAP) outcomes.
Practitioners should monitor for any reopening of related years and ensure consistent treatment across all affected tax periods following an appellate ruling.
Next, let’s understand when the U.S. Supreme Court can review tax-related cases.