You’re not required to enroll in a Medicare Part D drug plan when you first become eligible, but if you delay and don’t have other creditable drug coverage, you could face a late enrollment penalty when you do sign up.
The penalty applies if you go 63 or more days without Part D or creditable coverage. It’s calculated by multiplying 1 percent of the national base premium by the number of full months you went without coverage. In 2026, the base premium is $39.35. That penalty gets added to your monthly premium and stays with you for life.
Even if you’re not currently taking medications, enrolling in a low-cost or $0 premium Part D plan can help you avoid future penalties and give you peace of mind if your prescription needs change later on. It’s better to be protected now than to pay more later.
