The annual limit depends on your coverage type and changes each year

The IRS sets a maximum amount you can deposit into an HSA each calendar year, and that limit varies based on whether you have individual coverage or family coverage. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. For 2025, those limits increase to $4,300 and $8,550 respectively. These numbers change annually to keep pace with inflation, so you need to check the current year's limit before you deposit.

The limit applies to all your contributions combined — money you put in yourself, money your employer puts in, and money anyone else contributes on your behalf all count toward the same ceiling. If you exceed the limit, you owe taxes on the overage plus a 6 percent penalty tax each year the money stays in the account. The IRS does allow you to withdraw excess contributions and the earnings on them by the tax filing important date (usually April 15 of the following year) to avoid the penalty, but you will still owe income tax on the earnings portion.

If you turn 55 during the year, you become may be able to access for a catch-up contribution — an additional $1,000 on top of the standard limit. This applies only to you personally, not to your spouse, even if they also turn 55 that year. Once you reach 65 or become enrolled in Medicare, you can no longer make catch-up contributions.

Key Takeaways

  • The 2024 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, your own contributions, and contributions from anyone else all count toward the same annual limit.
  • Exceeding the limit triggers a 6 percent penalty tax each year the overage remains in the account, plus income tax on earnings.
  • You can add $1,000 extra per year once you turn 55, but only if you still have an HSA-may be able to access health plan.
  • The IRS allows you to withdraw excess contributions by your tax important date to avoid the penalty, though you still owe tax on any earnings.

How employer contributions affect your personal limit

If your employer contributes to your HSA, that money counts directly against your annual limit. For example, if your employer puts in $2,000 and you have individual coverage with a 2024 limit of $4,150, you can only add $2,150 of your own money without exceeding the cap. Many employers notify employees of their contribution amount early in the year so you can plan accordingly.

Some employers offer a cafeteria plan (also called a Section 125 plan) that lets you contribute pre-tax dollars to your HSA through payroll deduction. This reduces your taxable income and is usually the most tax-efficient way to fund an HSA, but the money still counts toward the annual limit. If you use both employer contributions and pre-tax payroll deductions, you need to track both to stay under the ceiling.

What happens if you change coverage mid-year

If you switch from individual to family coverage (or vice versa) partway through the year, the IRS allows you to make a pro-rata contribution — meaning you can contribute a portion of the higher limit for the months you had that coverage. The calculation is straightforward: divide the annual limit by 12, then multiply by the number of months you had that coverage type.

For example, if you had individual coverage (2024 limit: $4,150) for six months and then switched to family coverage (2024 limit: $8,300) for six months, you would calculate: ($4,150 ÷ 12 × 6) + ($8,300 ÷ 12 × 6) = $2,075 + $4,150 = $6,225 as your limit for that year. If you lose HSA-may be able to access coverage entirely mid-year, you can only contribute for the months you were covered.

Catch-up contributions once you turn 55

The $1,000 catch-up contribution is available to you starting in the month you turn 55, provided you still have an HSA-may be able to access health plan. You do not need to wait until the end of the year or until your birthday — you become may be able to access the moment you turn 55. If you turn 55 in June, you can make the catch-up contribution for June through December of that year.

The catch-up amount does not change year to year; it remains $1,000 regardless of inflation. Your spouse can also make a $1,000 catch-up contribution in the year they turn 55, but only if they have their own HSA and their own HSA-may be able to access coverage. A married couple where both are over 55 can each contribute an extra $1,000 to their separate accounts.

Penalties and how to fix an overage

If you deposit more than the annual limit, the IRS imposes a 6 percent excise tax on the excess amount for each year it remains in the account. This is in addition to regular income tax. The penalty compounds — if you leave $500 over the limit for three years, you owe 6 percent of $500 three times (once each year), not 18 percent total.

You can avoid the penalty by withdrawing the excess contribution and any earnings on it by your tax filing important date (usually April 15 of the following year). You will still owe income tax on the earnings portion, but the 6 percent penalty goes away. You do not need to file an amended return if you withdraw before the important date — just remove the money and report it on your tax return for that year. If you miss the important date, you owe the penalty for every year the overage sits in the account until you withdraw it.

Tracking contributions across multiple sources

Keeping your contributions under the limit becomes more complex if money flows in from multiple sources. Your employer may contribute, you may contribute through payroll deduction, and someone else (a spouse, a parent, a relative) might make a direct deposit to your account. All of these count toward the same limit, and it is your responsibility to track the total.

Your HSA custodian (the bank or financial institution holding the account) will send you a Form 5498-SA each January showing contributions made the previous year, but this statement arrives after the tax year ends. You cannot rely on it to stay under the limit during the year. Instead, contact your employer's benefits department for their contribution amount, track your own deposits, and ask anyone else contributing to tell you the amount before they send it. Keep a running total throughout the year.

Frequently Asked Questions

Can I contribute more if I have a high-deductible health plan with a very high deductible?

No. The contribution limit is based solely on your coverage type (individual or family), not on how high your deductible is. A $10,000 deductible and a $2,000 deductible both use the same annual limit.

What if my employer contributes after I have already maxed out my own contributions?

You will exceed the limit, and the overage is subject to the 6 percent penalty. Contact your employer when ready and ask them to stop contributions or reduce them. You may be able to withdraw the excess before your tax important date to avoid the penalty, but you will owe income tax on any earnings.

Does the catch-up contribution explore if I am over 55 but my spouse is not?

Yes. Each person with their own HSA can make a catch-up contribution in the year they turn 55, regardless of their spouse's age. Your spouse can make a catch-up contribution only in the year they turn 55.

If I leave my job mid-year, can I still contribute the full annual limit?

Only if you remain covered by an HSA-may be able to access health plan. If your coverage ends when you leave, you can only contribute for the months you were covered. If you enroll in a new HSA-may be able to access plan with your next employer, you can contribute for the months covered by that plan, but your total across both plans cannot exceed the annual limit.

Can I make contributions for previous years if I did not max out my HSA?

No. HSA contributions must be made during the calendar year or by the tax filing important date (usually April 15) for that year. You cannot go back and contribute for years you did not max out.