You can apply the premium tax credit to any bronze, silver, gold, or platinum plan offered through the marketplace. Premium tax credits cannot be applied to catastrophic plans. If you are also eligible for cost-sharing reductions, be aware that these can only be obtained through silver plans offered in the marketplace. (26 C.F.R. § 1.36B-2; 26 U.S.C. § 5000A (f) and 42 U.S.C. § 18071).