The IRS failed to establish that it issued a valid notice of deficiency to an individual under Code Sec. 6212(b). Thus, the Tax Court dismissed the case due to lack of jurisdiction.

The taxpayer filed a petition to seek re-determination of a deficiency for the tax year at issue. The IRS moved to dismiss the petition under Code Sec. 6213(a), contending that it was untimely and that Code Sec. 7502’s “timely mailed, timely filed” rule did not apply. However, the Court determined that the notice of deficiency had not been properly addressed to the individual’s last known address.

Although the individual attached a copy of the notice to the petition, the Court found that the significant 400-day delay in filing did not demonstrate timely, actual receipt sufficient to cure the defect. Because the IRS could not establish that a valid notice was issued, the Court concluded that the 90-day deadline under Code Sec. 6213(a) was never triggered, and Code Sec. 7502 was inapplicable.

L.C.I. Cano, TC Memo. 2025-65, Dec. 62,679(M)