Your costs for a Part D prescription drug plan may include monthly premiums, copays, and a deductible. The monthly premium can be paid through your Social Security retirement benefit or directly to the carrier. Depending on your income, you may be subject to an Income Related Monthly Adjust Amount (IRMAA). As of 2025, for drugs included in the plan's formulary, out of pocket costs including deductibles and copays are capped at $2000.
