As you approach your 65th birthday, you may find yourself faced with important decisions regarding your healthcare coverage. Two common options that often come up are Health Savings Accounts (HSAs) and Medicare. While both play crucial roles in managing healthcare costs, it’s essential to understand how they differ, overlap, and how they can impact your financial planning. This article will delve into the key distinctions between HSA and Medicare, providing a comprehensive guide to help you make informed decisions about your healthcare options.

Understanding Health Savings Accounts (HSAs)
A Health Savings Account (HSA) is a tax-advantaged account that allows individuals to save money for medical expenses. HSAs are typically linked to High Deductible Health Plans (HDHPs), meaning they can only be opened if you are enrolled in an HDHP. The contributions you make to an HSA are tax-deductible, and the funds grow tax-free. When used for qualified medical expenses, withdrawals from an HSA are also tax-free.
Eligibility for an HSA
To open and contribute to an HSA, you must meet the following requirements:
- Enrollment in a High Deductible Health Plan (HDHP): The HDHP must meet specific deductible and out-of-pocket maximum thresholds.
- No Other Health Coverage: You must not be covered by other health insurance that isn’t an HDHP, such as Medicare or a traditional employer plan.
- Not Enrolled in Medicare: Once you turn 65 and enroll in Medicare, you can no longer contribute to an HSA, but you can still use the funds in the account for medical expenses.
Overview of Medicare
Medicare is a federal health insurance program primarily designed for people age 65 or older, though it is also available to individuals with certain disabilities or health conditions. Medicare is divided into four parts:
- Part A (Hospital Insurance): Covers inpatient care in hospitals, skilled nursing facilities, hospice care, and some home health services.
- Part B (Medical Insurance): Covers outpatient care, doctor visits, preventive services, and some medically necessary services.
- Part C (Medicare Advantage): An alternative to traditional Medicare, Medicare Advantage plans are offered by private insurance companies and typically include Part A, Part B, and sometimes Part D.
- Part D (Prescription Drug Coverage): Helps cover the cost of prescription drugs.
While Medicare offers extensive coverage, it does not cover everything. Many beneficiaries choose to purchase additional coverage, such as Medicare Supplement Insurance or a Medicare Advantage plan to help fill the gaps.
How HSA and Medicare Work Together
When you reach 65, you become eligible for Medicare. At this point, you may wonder how your HSA fits into the picture. While you cannot contribute to an HSA once enrolled in Medicare, you can still use the funds in your account for qualified medical expenses. Here’s a breakdown of how the two work together:
Using Your HSA Funds After Enrolling in Medicare
Once you enroll in Medicare, you can no longer make contributions to your HSA, but you can use the funds for:
- Qualified medical expenses, such as doctor visits, hospital stays, and prescription medications.
- Medicare premiums, including premiums for Part B, Part D, and Medicare Advantage (Part C) plans.
- Dental and vision care, which are not covered by traditional Medicare.
It’s important to note that once you enroll in Medicare, you cannot use HSA funds to pay for premiums for a Medigap policy or any other private insurance coverage you may purchase in addition to Medicare.
Impact on Tax Benefits
One of the most attractive features of an HSA is the tax advantages. However, once you enroll in Medicare, you are no longer eligible for the tax benefits associated with HSA contributions. Specifically:
- Contributions are no longer tax-deductible.
- HSA growth is no longer tax-free.
- Withdrawals for non-medical expenses will be subject to tax and a penalty (unless the individual is over the age of 65, in which case the penalty is waived, but taxes will still apply).
Medicare and Health Savings Accounts: Key Considerations
When choosing between an HSA and Medicare, there are several factors to consider:
Contribution Limits
For 2025, the IRS allows the following contribution limits for HSAs:
- $3,850 for individuals with self-only HDHP coverage.
- $7,750 for individuals with family HDHP coverage.
These limits are higher if you are 55 or older, as you are eligible for a catch-up contribution of $1,000.
If you are already 65 or older and have been contributing to an HSA, be mindful that you will no longer be able to make contributions once you enroll in Medicare, unless you are still working and covered by an HDHP.
Coordination Between Medicare and Other Coverage
For individuals still working and covered by an employer plan that qualifies as an HDHP, it’s important to understand the coordination between your employer health plan, HSA, and Medicare. Generally, if you are enrolled in Medicare Part A, you can no longer contribute to an HSA, even if you are still working. If you are actively working past age 65, you may want to delay enrolling in Medicare to continue contributing to your HSA.
Impact on Healthcare Costs
Medicare helps cover many of your healthcare expenses, but it’s not all-encompassing. You may face gaps in coverage, such as deductibles, co-pays, and services not covered by Medicare, including dental, vision, and hearing. In these cases, your HSA can serve as a useful tool for paying out-of-pocket expenses not covered by Medicare.
Should You Use an HSA or Medicare?
The decision to utilize an HSA or Medicare is highly dependent on your individual situation. Consider these factors:
- If you are approaching 65 and have an HSA, it may be wise to maximize contributions before enrolling in Medicare to take full advantage of the tax benefits.
- If you are already enrolled in Medicare, your HSA can still be a useful resource to cover out-of-pocket expenses like co-pays, deductibles, and premiums, but you will no longer be able to contribute.
- If you are still employed after age 65, you might want to carefully coordinate your employer’s health plan, HSA, and Medicare enrollment to ensure you are optimizing your healthcare coverage.
Conclusion
Navigating the complexities of HSA and Medicare is crucial as you approach the age of 65. While both options offer unique benefits, understanding how they intersect will help you make better choices regarding your healthcare coverage. Whether you are still working, considering your retirement plans, or already enrolled in Medicare, being proactive about how you use your HSA in conjunction with Medicare can significantly impact your healthcare costs.
For more detailed information on Medicare and HSA coordination, it’s recommended to speak with a healthcare advisor or financial planner who can help tailor the best plan for your unique needs.
Need help? Call Health Plans in Oregon: 503-928-6918. Our assistance is at no cost to you.
