High Court Revives Tax Whistleblower’s Case After Chevron Ruling

The US Supreme Court on Tuesday ordered a lower court to reconsider a tax whistleblower’s case, giving him another chance to seek payment for a tip the IRS called meritless, although it led to the discovery of other wrongdoing.

The case hinged on the lower courts’ use of Chevron deference, a doctrine that required federal judges to defer to decisions made by federal agencies when administering ambiguous statutes within their area of competence. A divided high court tossed the decades-old doctrine June 28.

Michael Lissack gave information to the agency he believed showed that a condominium development group had underpaid ...