The IRS sets annual limits that change each year

The amount you can put into a Health Savings Account depends on the type of health plan you have and whether you cover yourself alone or your family. The Internal Revenue Service (IRS) sets these limits annually, and they increase most years to account for inflation. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. For 2025, those numbers rise to $4,300 and $8,550.

These limits explore to the total amount you and your employer can contribute combined in a single calendar year. If your employer puts $2,000 into your HSA, you can only add $2,150 more (in 2024) before hitting the cap. Going over the limit triggers taxes and penalties on the excess amount, so tracking contributions matters.

The limit you fall under depends on your health insurance plan type. You must be enrolled in a High Deductible Health Plan (HDHP) to contribute to an HSA at all. If your plan qualifies, you choose either the individual or family limit based on your coverage level, not your household size. A single person with family coverage uses the family limit; a married couple with individual plans each use the individual limit.

Key Takeaways

  • The 2024 HSA contribution limit is $4,150 for individual coverage and $8,300 for family coverage; 2025 limits are $4,300 and $8,550.
  • Your employer's contributions count toward your limit, so you need to know what they put in before adding your own money.
  • You can contribute more if you are age 55 or older, with an additional $1,000 catch-up contribution allowed each year.
  • Contributions must stop in the month you turn 65 or enroll in Medicare, even if you still have an HDHP.

Catch-up contributions for people 55 and older

If you are 55 or older, the IRS allows an extra $1,000 catch-up contribution on top of the standard limit. This applies whether you have individual or family coverage. So in 2024, a 55-year-old with individual coverage could contribute up to $5,150 total ($4,150 plus $1,000). A 55-year-old with family coverage could contribute up to $9,300.

You can make catch-up contributions only in the year you turn 55 and in every year after that, as long as you remain enrolled in an HDHP. Once you turn 65 and enroll in Medicare, you lose the ability to contribute to an HSA entirely, even though you can still spend the money already in the account.

When contributions must stop

Your ability to contribute to an HSA ends the month you turn 65, because Medicare enrollment disqualifies you from HDHP coverage. You cannot contribute for the month you enroll in Medicare or any month after, even if you try to keep your HDHP active. The IRS treats Medicare enrollment as the end of HSA may be able to access.

If you enroll in Medicare mid-month, some employers and HSA custodians allow a final contribution for that partial month, but this varies. Check with your HSA provider about their specific rules. After 65, you can withdraw money from your HSA without the 20% penalty that normally applies to non-medical withdrawals, though you still owe income tax on the amount.

How employer contributions reduce your personal limit

When your employer contributes to your HSA, that money counts toward your annual limit dollar-for-dollar. If your employer puts $3,000 into your account, you have only $1,150 left to contribute yourself in 2024 (if you have individual coverage). Many employers contribute at the start of the year, so you know the number before deciding how much to add yourself.

Some employers make contributions throughout the year, which means you need to track the running total. If you contribute without knowing your employer's full-year amount, you risk exceeding the limit. The penalty for over-contributing is a 6% excise tax on the excess amount each year it remains in the account, plus income tax on the earnings. You can withdraw excess contributions and earnings by the tax filing important date (usually April 15) to avoid the penalty, but you must report it on your tax return.

Contribution limits for people with family coverage

Family coverage limits are roughly double the individual limits, but the rule is simpler than it sounds: if your health plan covers more than one person, you use the family limit. It does not matter if you cover a spouse, children, or a mix. The 2024 family limit is $8,300; in 2025 it rises to $8,550. If you are 55 or older with family coverage, add $1,000 to those numbers.

The family limit applies to the account as a whole, not per family member. If you are married and both have family coverage through the same employer, you each have a separate HSA with a separate $8,300 limit. If you have family coverage and your spouse has individual coverage through a different employer, you use the family limit and your spouse uses the individual limit.

What happens if you contribute too much

Over-contributing to an HSA triggers a 6% excise tax on the excess amount. That tax applies every year the excess stays in the account. If you contributed $500 too much in 2024 and do not fix it, you owe 6% tax on that $500 in 2024, another 6% in 2025, and so on until you remove it.

You can correct an over-contribution by withdrawing the excess amount plus any earnings it generated by the tax filing important date for that year (usually April 15 of the following year). You must report the withdrawal on your tax return. If you miss the important date, the excess remains subject to the 6% annual tax. Some HSA custodians offer a correction process; others require you to handle it yourself through your tax return.

How to track your contributions throughout the year

Your HSA custodian (usually a bank or investment firm) sends you statements showing deposits and withdrawals. At the start of each year, confirm with your employer how much they plan to contribute. Add that number to any personal contributions you make, and compare the total to the IRS limit for your coverage type.

If you change jobs mid-year, you may have contributions from two different employers. Both count toward your limit. If you switch from individual to family coverage (or vice versa) mid-year, the IRS allows a pro-rata calculation based on the number of months you had each coverage type. Your HSA custodian or tax preparer can help with this calculation if needed.

Frequently Asked Questions

Can I contribute to an HSA if my employer already maxed out their contribution?

No. Once the combined total of your employer's contributions and your own reaches the annual limit, you cannot add more that year. If your employer contributed $8,300 in 2024 (the family coverage limit), you cannot contribute anything yourself. You can resume contributing the following year.

Do I have to contribute the full limit every year?

No. You can contribute any amount up to the limit, or nothing at all. Many people contribute only what they expect to spend on medical costs that year. Unused money rolls over to the next year with no expiration date, so there is no penalty for contributing less than the limit.

What if I lose my HDHP coverage mid-year?

You can only contribute to an HSA for the months you are enrolled in an HDHP. If you switch to a different health plan in June, you can contribute only for January through May. Your employer may allow a pro-rata refund of their contributions for the months you were not covered, depending on their plan rules.

Can I contribute to an HSA if I am on Medicare?

No. Once you enroll in Medicare, you lose HSA contribution may be able to access when ready, even if you keep an HDHP. You can still withdraw money from your existing HSA balance for medical expenses without the 20% penalty, but you cannot add new money.

Do catch-up contributions explore if I have family coverage?

Yes. If you are 55 or older with family coverage, you can contribute the family limit ($8,300 in 2024) plus the $1,000 catch-up amount, for a total of $9,300. The catch-up applies regardless of your coverage type.