A person delays enrolling in Medicare Part B for 24 months after becoming eligible, with no other coverage. When the person finally enrolls, the Part B late enrollment penalty is:

Why A is correct

The Part B late enrollment penalty adds 10% to the monthly premium for each full 12-month period that the beneficiary was eligible for Part B but failed to enroll without other creditable coverage, and the surcharge lasts as long as the beneficiary has Part B — permanently. A 24-month delay therefore produces a 20% premium increase for life. The penalty exists to push beneficiaries to enroll on time, and it applies even though Part B is technically voluntary. This 10%-per-year structure differs sharply from the Part D penalty of 1% per uncovered month.

Why the other options are wrong

• B) The Part B penalty is a percentage premium surcharge, not a one-time fee based on the deductible, so this option describes a structure the law never uses.
• C) The penalty attaches to the monthly premium, not to the deductible, and it is not limited to one year, so this option misplaces both the target and the duration.
• D) Part B enrollment is voluntary in form, but late enrollment without creditable coverage does trigger a permanent penalty, so this answer wrongly treats voluntariness as penalty-free.

Memory hook

Part B penalty = 10% per full year late, forever. Two years late means a permanent 20% premium tax.

Why A is correct

The Part B late-enrollment penalty is a 10% increase in the monthly premium for each full 12-month period the beneficiary was eligible for Part B but did not enroll and had no other creditable coverage. The penalty is permanent: it applies for as long as the person has Part B. Maria's 24-month delay equals two 12-month periods, so her premium is permanently increased by 20%. The penalty is added to the standard premium and does not expire after a set number of years.

Why the other options are wrong

• B) The penalty does not double the premium and is not limited to the first year; it is a permanent percentage surcharge.
• C) Part B does have a late-enrollment penalty of 10% per 12 months without creditable coverage.
• D) The penalty is a percentage of the premium, not a flat dollar amount such as $50 per month.

Memory hook

Part B: 10% more per 12 months late, for life. Maria is 24 months late: plus 20%, forever.

Why A is correct

The Part B late enrollment penalty is 10 percent of the standard premium for each full 12-month period that the beneficiary was eligible but lacked creditable coverage, and the surcharge lasts for as long as the person has Part B — a lifetime penalty. A 36-month delay means a 30 percent permanent surcharge, 10 percent for each of three full 12-month periods. Creditable group coverage based on current employment would have preserved a Special Enrollment Period instead, avoiding the penalty.

Why the other options are wrong

• B) The penalty is not a one-time payment; it is a permanent monthly premium surcharge.
• C) Medigap enrollment does not cure the Part B penalty; the surcharge attaches to the Part B premium itself for life.
• D) Part B is voluntary, but voluntary enrollment after the initial period triggers the permanent 10 percent per 12-month penalty.

Memory hook

Part B penalty = 10% per missed year, forever. The clock never forgives and never forgets.