What is an HSA? How a health savings account can help you save for healthcare costs

A health savings account (HSA) is a tax-advantaged account that lets you set aside money for qualified medical expenses. If you’re enrolled in a high-deductible health plan, an HSA can help you pay for a wide range of costs, such as doctor visits, prescriptions, and other eligible healthcare costs while offering potential tax benefits along the way.

Because unused HSA funds can roll over from year to year and can be invested, an HSA can support your healthcare needs today, along with retirement planning for tomorrow. By understanding how to contribute, save, and potentially invest your HSA funds, you can make the most of the account now while building a cushion for future healthcare costs.

What you’ll learn

• Why should you consider a health savings account (HSA)?
• Who is eligible for an HSA?
• What are the tax benefits of an HSA?
• How to use your HSA for healthcare costs today
• How an HSA can help with future healthcare costs and retirement planning

Why should you consider a health savings account (HSA)?

An HSA is designed to work alongside an HSA-eligible high-deductible health plan, giving you a place to save money specifically for qualified medical expenses. The money in the account can be used for a wide range of eligible healthcare costs, including doctor visits, prescriptions, dental care, vision care, and other related expenses that may come up throughout the year.

Unlike some other healthcare accounts, HSA funds can roll over from year to year, so you don’t have to rush to use the money before a deadline. That flexibility can make an HSA helpful whether you’re managing routine healthcare costs now or setting aside money for expenses you may face later.

Who is eligible for an HSA?

To contribute to an HSA, generally, you need to be enrolled in an HSA-eligible high-deductible health plan (HDHP). These plans typically have higher deductibles than traditional health insurance plans, but they allow you to pair your coverage with an HSA so you can set aside money for qualified medical expenses. Eligibility is determined month by month, so if your health coverage changes during the year, it could affect how much you’re allowed to contribute.

You usually can’t contribute to an HSA if you’re enrolled in Medicare, can be claimed as a dependent on someone else’s tax return, or have other health coverage that isn’t HSA-compatible. For example, a general-purpose flexible spending account (FSA), including one through a spouse, may affect your eligibility. Because the rules can vary based on your specific plan and coverage, it’s a good idea to review your benefits information or consult a tax professional if you’re unsure whether you qualify.

What are the tax benefits of an HSA?

One of the biggest advantages of an HSA is its potential tax benefit. Contributions may reduce your taxable income, the money in the account can grow tax free, and withdrawals are tax-free when used for qualified medical expenses. That combination can help your healthcare dollars go further over time.

As you think through your broader financial picture, Alliant Credit Union encourages members to look for simple ways to make their money work harder. When compared with a regular savings account, an HSA offers more value for healthcare planning because contributions may lower your taxable income, earnings can grow tax-free, and withdrawals are tax-free when used for qualified medical expenses.

How to use your HSA for healthcare costs today

Using your HSA strategically starts with understanding when it makes sense to spend from the account and when it may be better to let your balance grow. For example, you might use HSA funds for recurring prescriptions or planned medical visits, while paying smaller expenses out of pocket if your budget allows.

You also don’t need to reimburse your healthcare expenses right away. There is no time limit set by the IRS for taking an HSA reimbursement. Meaning, you could pay for a healthcare expense out of pocket today while investing in your HSA (more on this below) and then take out an HSA reimbursement tax-free year down the road. You just need to keep your receipts.

How an HSA can help with future healthcare costs and retirement planning

Because HSA balances can carry over year after year, the account can become more than a short-term healthcare fund. If you’re able to contribute consistently and avoid spending the full balance each year, your HSA may help you build a dedicated cushion for future medical expenses.

You can also invest your HSA funds to help grow your money even more. Once your balance reaches a minimum threshold, usually somewhere between $1,000 and $2,000, you can invest your HSA in mutual funds, index funds, or exchange-traded funds (ETFs). This way, your money will continue to grow until you actually need it for medical expenses. Healthcare can often be one of the biggest expenses in retirement, and an HSA may be one piece of your broader savings and investment strategy. If you want help looking at how an HSA fits into your longer-term financial or retirement plan, Alliant Retirement and Investment Services can help you think through retirement planning, investment options, and wealth management goals. (Note: Investment products and services are not federally insured, are not obligations of or guaranteed by Alliant Credit Union and may involve investment risk.)

An HSA is a practical way to manage healthcare expenses today while giving yourself more flexibility for the future. Even if you aren’t anticipating many health expenses now, it is a helpful tool for growing your money to use towards future health costs. 

Small, steady habits can help you build financial confidence, and an HSA can be part of that approach. By treating it as both a healthcare tool and a long-term savings resource, you can plan ahead with more confidence and feel better prepared for whatever comes next.