Ways to invest in your health savings account

Know the type of HSA user you are, then see how to make your money work harder.

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Key takeaways

  • Understand what kind of HSA user you are, based on your primary goals for using your HSA.
  • Decide how to invest your HSA balance to have the opportunity for growth, realize the tax benefits, and be better prepared to cover medical expenses when they arise.
  • Consider investments that best suit your goals, time horizon, financial situation, and risk tolerance.

Millions of Americans use a health savings account (HSA) to pay for qualified medical expenses with pre-tax income, but an HSA also offers investing advantages that can support longer-term goals. Whether you already have an HSA or are thinking of opening one, tapping the full potential of this multi-faceted savings, spending, and investing vehicle starts with understanding how it can help you meet your financial needs—today and tomorrow.

The fundamental power of an HSA is its triple tax advantage. The money you contribute isn't subject to federal income tax, earnings accumulate tax-free, and withdrawals are not subject to federal income tax when they’re used for qualified medical expenses.1

These advantages offer a powerful incentive to use your HSA as an investment vehicle in addition to other tax-advantaged accounts, such as a 401(k) and individual retirement accounts (IRAs).

HSA owners generally use their account in 3 ways:

  1. Paying current qualified medical expenses
  2. Saving for a potential medical emergency or for a planned procedure (e.g., braces for a child)
  3. Investing for health care expenses in retirement

Although you may consider one of these approaches to be your primary reason for having an HSA, they're not mutually exclusive. They can be pursued in combination to maximize the benefit of an HSA as part of your financial plan.

Tip: See current HSA contribution limits along with the different ways you can contribute to an HSA.

Consider your cash needs for spending first, before investing

If you want to make the most of your HSA by investing some of the balance, how much should you hold back in cash in your core account to cover near-term expenses?

It depends. One way to manage your money in your HSA is to set a "cash target." That's the amount of money kept in cash in your core account at any moment.

For example, say you had $5,000 in your HSA. You may think of $2,500 as your cash target. After you’ve hit that number, you begin investing any money above that baseline. You aim at keeping enough cash at that level throughout the year, using it as a "safety net" to help pay medical bills.

Tip: In general, the amount to keep in uninvested cash in your core account should be equal to your expected annual out-of-pocket medical expenses or your in-network deductible amount. See ways to help estimate your HSA cash target.

Let's look at how you might invest your HSA dollars for each of the primary ways you might use them.

1. Paying for current medical expenses

If you anticipate having health care expenses, including elective procedures that aren’t covered by your health plan, consider increasing the amount you save in your HSA. This could allow you to potentially grow your HSA cash balance and still have money available to invest.

Another strategy for using your HSA: Try to cover smaller bills out-of-pocket from your personal savings and then use your HSA for larger current ones or investing for future needs.

Reviewing your medical expenses for the past couple of years can give you a good idea of how much you can grow your HSA balance by contributing more than you spend. Then, rather than holding the extra money in a taxable brokerage account, you can increase how much you contribute to your HSA and invest it for potential tax-free growth.

If you need money quickly from your HSA for an unexpectedly large medical expense, simply place a trade and have the money available in your HSA within a few days.

Tip: Learn more about HSA eligibility along with ways to use a Fidelity HSA for savings and spending.

Scenario Amount to invest General investing strategy Hypothetical asset allocation*
Someone who is worried about a medical emergency that could occur at any time $5,000 Avoid risk 100% in cash in a core account
Someone who does not know when they should tap into money in their HSA or how to invest $10,000 Keep cash target high in case you need help paying for major medical bills; invest the rest in a balanced portfolio; consider Fidelity Health HSA Savings Fund Asset allocation of HSA Fund
- 30% stocks (with potential to range from 20% to 40%)
- 70% bonds (with potential to range from 60% to 80%)
Someone who is saving for health care expenses in retirement $25,000 Invest for retirement in a balanced portfolio - 10% in cash in a core account
- 50% in stocks
- 40% in bonds
* These are hypothetical use cases for investing in noncash options within an HSA. Asset allocations are generally based on Fidelity Health Savings Index fund. As with all your investments through Fidelity, you must make your own determination whether an investment in any particular security or securities is consistent with your investment objectives, risk tolerance, financial situation and your evaluation of the security.

2. Saving for a possible medical emergency

Accidents do happen. And using your HSA as a "rainy day" health care fund to cover a medical emergency is another popular strategy, especially if you're able to pay routine medical costs from your household cash flow. If a sudden financial need throws a wrench into the household budget, your HSA can help you cover some of your medical costs.

Investing a portion of your account may help you grow your balance faster.

When considering how to invest your HSA savings, you may want to consider one of Fidelity's Health Savings funds which does not require a specific investing time horizon and provides a conservative asset mix (20-40% stocks and 60-80% bonds) to help protect against down market risk while also participating in the market gains.

Tip: To get started putting your cash to work in your HSA, see the list of Fidelity HSA® Funds to Consider.

3. Boosting your retirement savings

An HSA may be the most tax advantaged of all retirement savings plans. In addition, an HSA does not require you to begin taking distributions at age 722, like IRAs and 401(k)s.

Not having to pay taxes on withdrawals used for qualified medical expenses can be a big plus for your retirement budget. Total retirement health care expenses for an average retired couple age 65 in 2020 may be $295,000, according to the Fidelity Retiree Health Care Cost Estimate.3

If you've been fortunate enough to accumulate more money in your HSA than you need to cover current and future retirement health care costs, you can withdraw the money for something other than a qualified medical expense (like taking a family vacation or buying a car) after you reach age 65 without having to pay a penalty. You will, however, owe income tax on the withdrawal.

Read Viewpoints on Fidelity.com: 5 ways HSAs can fortify your retirement

Deciding how to invest your HSA

Regardless of your primary intent for your HSA, investing a portion of your account can be a smart move. When you’ve decided how much that will be, you can begin considering the investments that best suit your goals, time horizon, financial situation, and risk tolerance.

You can also choose to actively manage your HSA investments in your HSA brokerage account with zero commissions on most trades, or you can work with your financial advisor to learn more about HSA investing with Fidelity and Investment help for HSAsLog In Required to help support the financial and health needs of your family.

Next steps to consider



Research investments


Get industry-leading investment analysis.



Investment help for HSAs


Get investment help, or consider Fidelity's Health Savings funds, designed for HSA investing.



Open a Fidelity HSA®


Transfer account balances from an old HSA into Fidelity.

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