*565 MEMORANDUM **

Attorneys Kevin J. and Marie Claire Mirch appeal from the Tax Court’s order dismissing for lack of jurisdiction their petition challenging the Commissioner of Internal Revenue’s notice of deficiency for the 2004 tax year. We have jurisdiction pursuant to 26 U.S.C. § 7482(a)(1). We review de novo, Meruelo v. Comm’r, 691 F.3d 1108, 1114 (9th Cir. 2012), and we affirm.

The Tax Court properly concluded that it lacked jurisdiction because the Mirches did not file a timely petition for redetermi-nation. See Elings v. Comm’r, 324 F.3d 1110, 1112 (9th Cir. 2003) (“The' tax court has jurisdiction only if two requirements are met: (1) the IRS issued a valid notice of deficiency, and (2) the petitioner filed a timely petition.”).

The notice of deficiency was sent by certified mail to the Mirches’ last known address, and they do not challenge the content of the notice. Thus, contrary to the Mirches’ contentions, there was a valid notice of deficiency. See 26 U.S.C. § 6212; see also Scar v. Comm’r, 814 F.2d 1363, 1366-70 (9th Cir. 1987) (discussing requirements for valid notice of deficiency).

We reject the Mirches’ contentions that the Tax Court was required to evaluate the validity of any extension of time to assess tax.

AFFIRMED.