Equitable Tolling of Tax Court Filing Deadlines: The Eighth Circuit Joins the Post-Boechler Consensus in Maniktala v. Commissioner
Maniktala v. Commissioner of Internal Revenue, No. 25-1366 (8th Cir. Aug. 11, 2026)
For decades, tax practitioners have operated under the strict assumption that the ninety-day filing deadline to petition the United States Tax Court for a redetermination of a deficiency under Internal Revenue Code (IRC) Section 6213(a) is an absolute, non-negotiable jurisdictional bar. Under this traditional paradigm, a late-filed petition, even by a single day, stripped the Tax Court of its power and left the taxpayer with no recourse but to pay the tax and sue for a refund in Federal District Court or the Court of Federal Claims. However, in Maniktala v. Commissioner of Internal Revenue, No. 25-1366 (8th Cir. Aug. 11, 2026), the United States Court of Appeals for the Eighth Circuit dramatically upended this orthodoxy. Following recent landmark Supreme Court decisions disciplining the term “jurisdictional,” the Eighth Circuit held that the filing deadline under Section 6213(a) is a nonjurisdictional claims-processing rule subject to equitable tolling. This decision aligns the Eighth Circuit with a growing multi-circuit consensus and marks a critical milestone in administrative tax equity.
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