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De Minimis Amount Under section 1860D-14(a)(5) of the Act, a PDP or MA-PD plan may volunteer to waive the portion of beneficiary’s monthly adjusted basic Part D premium that is a de minimis amount above the low-income subsidy (LIS) benchmark for a subsidy eligible individual. The law prohibits CMS from reassigning LIS members from plans who volunteered to waive the de minimis amount. The de minimis amount for CY 2026 will be $2.

Operational Guidance and Deadlines Voluntary Part D Premium Stabilization Demonstration – Action by 11:59 PM PDT on Monday, August 4, 2025

Part D sponsors of eligible PDPs must affirmatively inform CMS of their intent to participate in the Part D Premium Stabilization Demonstration for CY 2026 via HPMS. On Monday, July 28, 2025, CMS will release premiums for all eligible standalone PDPs as they would be under the demonstration and as they would be if the PDP elects not to participate in the demonstration. Part D sponsors can inform CMS of their intent to participate for CY 2026 starting Monday, July 28, 2025, until 11:59 PM PDT on Monday, August 4, 2025. The mechanism to opt into the Part D Premium Stabilization Demonstration can be found at the following path in HPMS: HPMS Home > Plan Bids > Bid Submission > CY 2026 > Review Plan Data > PDP Demo Election The ‘PDP Demonstration Election’ link will be available at the left navigation bar. There is no default value selected. Eligible plan sponsors must select a radio button of Yes or No to indicate if they want to volunteer to participate or not. As noted previously, Part D sponsors must include all plans under each of their standalone PDP contracts in the demonstration if they choose to participate. Part D sponsors with multiple standalone PDP contracts must include all contracts in the demonstration if they choose to participate. Therefore, Part D sponsors must select the same response for all contracts on the PDP Demonstration Election page. For Part D sponsors of PDPs that opt into the demonstration, final post-demonstration premiums will be released on Thursday, August 7, 2025. Please send any questions about the demonstration to PartDPaymentPolicy@cms.hhs.gov. Rebate Reallocation - Action by 11:59 PM PDT on Wednesday, August 6, 2025 MA organizations that offer MA-PDs will have from Monday, July 28, 2025, until 11:59 PM PDT on Wednesday, August 6, 2025, to complete rebate reallocation. Plan-specific information, such as plan standardized bid amounts, plan-specific premiums, and MA rebate dollars used, can be found at the following path in HPMS: