In these consolidated appeals, Jan Men-gedoht challenges the validity of the district court’s 1 orders enforcing summonses issued by the Internal Revenue Service (IRS). We dismiss these appeals as untimely because the orders granting the government’s petitions for enforcement were entered in March 2007, and Menge-doht did not file his appeals until December 2008. See Fed. R.App. P. 4(a)(1)(B) (when United States is party, notice of appeal may be filed within 60 days after order appealed from is entered); United States v. Allee, 888 F.2d 208, 212 (1st Cir. 1989) (per curiam) (district court order enforcing IRS summons was final appeal-able order when it was issued; challenges to issuance of IRS summons and validity of order enforcing summons can, and must, be raised by timely appeal from date of issuance of enforcement order; fact that order directed party to do something— appear before IRS and claim, if desired, Fifth Amendment privilege — did not affect enforcement order’s finality for appeal purposes); cf. Dieser v. Cont’l Cas. Co., 440 F.3d 920, 923 (8th Cir. 2006) (requirement of timely notice of appeal is mandatory and jurisdictional).

Accordingly, we dismiss both appeals.