How Much Can I Contribute to My HSA If I Enroll in Medicare in October?

Enrolling in Medicare in October can affect how much you can contribute to your HSA (Health Savings Account). When you enroll in Medicare, your eligibility for contributing to an HSA changes. Here are some key points to consider:

When you enroll in Medicare:

  • If you enroll only in Medicare Part A or Part B, you can still contribute to your HSA.
  • If you enroll in both Medicare Part A and Part B, you are no longer eligible to contribute to your HSA.

If you are already contributing to your HSA and then enroll in Medicare, you need to adjust your contribution amount accordingly. The IRS provides specific guidelines regarding HSA contributions for individuals enrolled in Medicare:

  • For individuals who are 55 or older, there is a catch-up contribution limit that allows for additional contributions to their HSA.
  • For individuals enrolled in Medicare for only part of the year, the HSA contribution limit is prorated based on the number of months they were eligible.

It's important to understand how Medicare enrollment impacts your HSA contributions to avoid any penalties or tax implications. Consulting with a financial advisor or tax professional can help you navigate these changes smoothly.


Understanding how enrolling in Medicare in October affects your HSA contributions is crucial. If you are considering Medicare, remember that while enrolling in only Medicare Part A or Part B does not affect your HSA contribution eligibility, enrolling in both puts an end to your ability to contribute.

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