A health savings account (HSA) and a high-yield savings account (HYSA) can both help you prepare for medical expenses -- but they work very differently.
One offers tax advantages and long-term growth potential, while the other provides flexibility and easy access to cash. So, which option is better for covering your healthcare bills? Here's what you need to know.
A health savings account is an account you can use to save money for medical expenses, including dental and vision care.
In 2024, over 39 million people in the U.S. had HSAs, and for good reason. Here are the main features and benefits you get from using an HSA:
You can only qualify for an HSA if you have a high-deductible health plan (HDHP). That's an insurance plan with a low monthly premium but high out-of-pocket costs. As of January 2026, all Bronze and Catastrophic Marketplace plans will be eligible, and people who use direct primary care (DPC) will qualify as well.
A high-yield savings account (HYSA) is a savings account that pays a higher interest rate than the average savings account. Right now, the national average rate on savings accounts is just 0.39% APY, but you can earn over 4% APY with an HYSA.
Aside from their high interest rates, HYSAs function just like other savings accounts. So yes, you can use them to save money for medical expenses. But unlike HSAs, they don't help you lower your income taxes. In fact, you may have to pay taxes on the savings account interest you earn.
HSAs and HYSAs can both help you save money for medical expenses. But where HYSAs simply offer high interest rates, HSAs allow you to earn interest and save money on taxes.
Let's say, for example, your effective income tax rate is 12%. If you contribute the maximum annual amount to your HSA ($4,300 for individuals), you can potentially reduce your 2025 tax bill by $516 (that's 12% of $4,300).
If you contribute the same amount each year for five years, and you earn a modest 2% in interest, you could end up with an estimated tax savings of roughly $2,580 and earn up to $1,300 in interest (depending on how much and how often you withdraw funds).
By comparison, if you invest $4,300 a year into a HYSA that earns 4% APY, you'll earn an extra $2,679 in five years. Since that interest is taxable, your real returns would be closer to $2,374.
If you have a qualifying healthcare plan, an HSA is the ideal place to save money for healthcare expenses. For those who can afford to leave money in an HSA long-term, these accounts are also great for supplementing retirement savings and helping cover medical costs during retirement.
According to the Brookings Institute, HSAs benefit people with higher tax rates the most. That's because those individuals not only get larger tax breaks for their HSA contributions, but they can also afford to leave money in their accounts for longer periods.
HYSAs are a great place to save money for most short- to medium-term needs and goals, as there are no restrictions on how or when you can use the funds.
Whether you're building up an emergency fund, saving for a down payment, putting away money for a wedding, or saving for another purpose, an HYSA allows you to earn a competitive interest rate on your balance and enjoy penalty-free access to your money.
HYSAs are also a good option for saving money for medical expenses if you don't qualify for an HSA.