How Much Should You Contribute to Your HSA?

Health savings accounts (HSAs) offer a tax-advantaged way to save for healthcare expenses. You may have access to an HSA if you have a high-deductible health plan at work or purchased an HDHP as a self-employed individual.

For those who have HSAs, it can be common to wonder just how much to contribute. Maxing out your annual contribution limit can help you get the most tax benefit from an HSA. However, your personal finances may not allow you to sock that much away. Here, important insights that can help you determine the right amount for your budget.

Understanding Health Savings Accounts (HSAs)

There are several types of medical expense accounts recognized by the IRS (Internal Revenue Service), including Health Savings Accounts. Several characteristics distinguish HSAs from other options, such as Flexible Spending Arrangements (FSAs), Health Reimbursement Arrangements (HRAs), and Archer Medical Savings Accounts (MSAs).

The differences between an HSA vs. FSA, or an HSA vs. HRA lie in who can contribute, how much you can contribute, how your contributions grow, and what happens if you don’t spend down those contributions year-over-year. Here’s a closer look at what HSAs involve.

What Is an HSA?

The IRS defines an HSA as a tax-exempt trust or custodial account you set up with a qualified HSA trustee to pay or reimburse certain medical expenses you incur. To put it more simply, an HSA is a special type of savings account for those with HDHPs and is funded with pre-tax dollars that is designed to help you pay for healthcare.

Here are the main benefits of an HSA:

•   Contributions are tax-deductible, unlike money you put in a savings account.

•   Amounts contributed to an HSA grow tax-deferred.

•   Funds roll over from year to year, so you don’t have to “use it or lose it” in terms of funds that haven’t been spent at the end of the year.

•   Most HSAs include a debit card, similar to what you get with a checking account, that you can use to conveniently pay for healthcare expenses.

•   Withdrawals for qualified medical expenses are tax-free.

Once you turn 65, you can withdraw money from your HSA for any reason, healthcare-related or otherwise. You’ll pay ordinary income tax on withdrawals that are not for medical expenses.

IRS Publication 502 outlines which medical and dental expenses you can use HSA funds to cover. The list is extensive, though it excludes health insurance premiums.

Eligibility Requirements

There’s one simple eligibility requirement you’ll need to meet to contribute to an HSA. You must be enrolled in a high-deductible health plan.

These healthcare plans must, by law, set a minimum deductible and a maximum limit on out-of-pocket costs for covered individuals. Deductibles for HSA-eligible plans are typically much higher than standard health insurance plans, but you get the benefit of a tax-advantaged savings account built in.

Here are the most recent guidelines, according to the IRS:

•   In 2024, the minimum annual deductible for HDHP was $1,600 for self-only coverage and $3,200 for family coverage.

•   For 2025, the minimum is to $1,650 for self-only coverage and $3,300 for family coverage.

Note that just because you have an HSA through your high-deductible health plan doesn’t mean you have to make contributions. But you could be missing out on some valuable tax breaks if you don’t contribute and instead just keep the cash in a bank account.

Recommended: Beginner’s Guide to Health Insurance

HSA Contribution Limits

Both employers and employees can contribute to an HSA, similar to the way your job might offer a company-matching contribution to your 401(k).

But that doesn’t mean the sky’s the limit. The IRS sets the annual contribution limits, adjusted for inflation. Your limit is determined by whether you have individual or family coverage.

Here are the HSA contribution limits for 2024:

•   Individual coverage: $4,150 maximum contribution

•   Family coverage: $8,300 maximum contribution

•   An additional $1,000 catch-up contribution is allowed if you’re aged 55 or older.

For 2025, the limits increase to:

•   Individual coverage: $4,300 maximum contribution

•   Family coverage: $8,550.

•   An additional $1,000 catch-up contribution is allowed if you’re aged 55 or older.

Contribution limits apply to both employer and employee contributions. So, if you have individual coverage and your employer contributes $1,150 to your HSA for the year, you could only contribute up to $3,000 in 2024.

Also, note that you cannot contribute to an HSA if you:

•   Have a flexible spending account (FSA) or

•   Are enrolled in Medicare or

•   Can be claimed as a dependent on someone else’s tax return1

To clarify, you can have an HSA before and after you enroll in Medicare. You just can’t make new contributions to it once you’re enrolled in Medicare.

Factors to Consider When Determining HSA Contributions

If you have an HSA, you may have questions about where it might fit into your larger financial plan. For example, you may be asking yourself:

•   How much should I put in my HSA if I’m still young and healthy?

•   What if I have an ongoing health condition or am concerned I might develop one later in life?

•   What amount should I save if I also want to contribute to my 401(k)?

•   Will employer contributions affect how much I should contribute to HSA?

•   Would saving in an HSA make a significant difference to my tax filing?

There’s no right or wrong answer for how much to contribute to HSA savings. It’s a personal decision that’s based on a variety of factors (as noted above), such as your plan coverage, age, financial situation, and anticipated healthcare needs. For instance, a healthy single 35-year-old with minimal family history of disease and an annual salary of $75,000 may opt to put less in an HSA than a married 45-year-old parent of three children, who has a family history of heart disease, and earns $175,000.

HSA tax benefits are a strong incentive to contribute something to your account, even if it’s not the full amount you’re eligible for each year. As your income grows, you could gradually increase contributions until you’re consistently maxing out your plan.

Strategies for Maximizing HSA Contributions

If you have an HSA, it helps to know how you can make the most of it. Here are some tips for making sure every penny you contribute counts.

•   Review your plan and IRS guidelines so you know your annual contribution limit.

•   Find out if your employer makes contributions on your behalf and if so, up to what amount.

•   Review your budget and other payroll deductions to determine how much you could contribute to your HSA per pay period.

•   Max out your annual contribution limit, if possible.

•   Take advantage of investment opportunities inside your HSA, which may include individual stocks, bonds, mutual funds, and exchange-traded funds (ETFs).

•   Review your contributions and asset allocations in other tax-advantaged accounts you may have, such as a 401(k) or IRA, to make sure your holdings are well-balanced.

Here’s one more tip. If you have multiple HSAs from previous employers, consider consolidating them into a single account. That can simplify HSA management and you may be able to save on fees or unlock better investments.

HSA Contribution Scenarios

Here’s how you might handle HSA contributions through different life stages.

•   Young, healthy individuals: You might assume that if you’re young and in good health HSA contributions aren’t a must. But consider this: The earlier you begin making contributions, the longer your money has to grow through the power of compounding vs. simple interest.

•   Families with children: If you have kids, you understand the simple truth that they get sick. Sometimes they get hurt. And even if they stay healthy, they still need regular checkups with doctors and dentists. All of that costs money, and an HSA helps you plan for those expenses while enjoying a tax deduction for contributions.

•   Near retirees: As you approach retirement it’s important to think about how your healthcare needs might change. If you’ve faithfully made HSA contributions and invested them you can use those funds to offset any out-of-pocket healthcare expenses you’re responsible for that aren’t covered by Medicare. Using an HSA for retirement can help you avoid having to drain your 401(k), IRA, or other assets.

Calculating Your Ideal HSA Contribution

Online tools, such as savings account calculators, can make it easier to build your financial literacy and manage your money. The same holds true for deciding how much to put in HSA savings. For example, you can use an HSA calculator to estimate how much tax-deferred growth you could realize based on:

•   Coverage type

•   Average yearly contribution

•   Average annual medical expenses

•   Current tax bracket (federal and state)

•   Expected number of years you’ll make contributions

•   Expected rate of return

For example, if you have family coverage and contribute $8,000 a year for 30 years, earning a 5% annual return, your HSA would grow to more than $523,000 over those three decades. That assumes you spend $500 per year on medical expenses.

Playing with the numbers can give you a better idea of how much you could gain from contribution to an HSA.

Common Mistakes to Avoid with HSA Contributions

HSAs offer plenty of benefits, but only when they’re used correctly. Here are some of the most important missteps to avoid if you have access to a health savings account.

Treating an HSA like a savings account at your bank. If you have a high-yield savings account you could technically withdraw money for anything. The worst penalty you might face is an excess withdrawal fee. HSAs aren’t like that and if you’re under 65, you’ll need to stick to withdrawals for healthcare only if you want to dodge a tax penalty.

Not paying attention to employer contributions. If your employer contributes to your HSA, it’s important to know how much they put in. Otherwise, you could be at risk of making excess contributions if you go over the maximum annual limit allowed based on your coverage type. Excess contributions are subject to a 6% excise tax penalty each year they remain in your account.

Not contributing at all. Perhaps the biggest mistake with HSA contributions is not making them if you’re eligible to do so. If you have an HSA at work, it’s an employee benefit, and it makes sense to use all such privileges and perks granted to you. So you might want to go ahead and set up an HSA account and add some funds.

The Takeaway

If you have a high-deductible health plan, it can be wise to consider setting up an HSA. Even if you don’t fully max out your contributions to start, every dollar you contribute and invest can benefit from compounding interest. Over time, your HSA grows in a tax-advantaged way, and those funds come in handy when you need to pay for healthcare spending.

Interested in opening an online bank account? When you sign up for a SoFi Checking and Savings account with direct deposit, you’ll get a competitive annual percentage yield (APY), pay zero account fees, and enjoy an array of rewards, such as access to the Allpoint Network of 55,000+ fee-free ATMs globally. Qualifying accounts can even access their paycheck up to two days early.

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FAQ

What happens to unused HSA funds at the end of the year?

Unused HSA funds are not use-it-or-lose-it. If you have funds remaining in your account at the end of the year, they roll over and remain in your HSA until you spend them. That’s a major difference vs. FSAs, which require you to spend down contributions each year or forfeit them.

Can I contribute to an HSA if I’m self-employed?

You can contribute to an HSA if you’re self-employed provided you have a high-deductible health plan. That’s the only requirement to save in one of these accounts; you’re not limited based on your tax-filing status or income. You are, however, excluded if you have an FSA, are enrolled in Medicare or can be claimed as a dependent on someone else’s tax return.

How do HSA contributions affect my taxable income?

HSA contributions reduce your taxable income for the year, similar to the way that 401(k) contributions do. That means you get an instant tax break when you make contributions, even if you don’t plan to use any of your HSA funds right away.

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