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

The amount you can put into a Health Savings Account (HSA) is set by the IRS and changes slightly each year. For 2024, you can contribute up to $4,150 if you have individual coverage, or $8,300 if you have family coverage. These numbers go up a bit in 2025 — to $4,300 for individual and $8,550 for family — but the IRS announces the exact amounts in the fall of each year, so you'll know what applies before the year starts.

The limit only applies to money you put in yourself. If your employer puts money into your HSA, that counts toward the same limit. So if your employer contributes $1,500 and you want to contribute more, you can only add $2,650 more (in 2024 with individual coverage) before hitting the cap.

Key Takeaways

  • The IRS sets an annual contribution limit that changes each year, announced in the fall for the following year.
  • Your employer's contributions count toward your limit, so you need to know what they're putting in before you decide how much to contribute yourself.
  • If you turn 55 during the year, you can contribute an extra $1,000 that year and every year after, called a catch-up contribution.
  • Contributing more than the limit results in a 6% tax penalty on the excess amount each year it stays in the account.
  • You can carry unused money forward year to year with no penalty — there is no "use it or lose it" rule for HSAs.

How employer contributions affect your personal limit

If your employer offers to put money into your HSA, that amount is subtracted from your annual limit. This is important because many people don't realize they've already hit their cap before they contribute their first dollar.

For example, if your employer contributes $2,000 to your HSA and you have individual coverage in 2024, you can only add $2,150 of your own money ($4,150 total limit minus $2,000 employer contribution). If you try to contribute $3,000 on top of the employer contribution, the extra $850 is considered an overage and you'll owe a 6% penalty tax on it.

Before you set up your own contributions, ask your employer or benefits administrator exactly how much they're putting in. This number should be in your benefits paperwork or available through your HR department.

The catch-up contribution if you're 55 or older

Once you turn 55, you're allowed to put in an additional $1,000 per year on top of the regular limit. This is called a catch-up contribution and it's designed to help people save more as they get closer to retirement.

The $1,000 catch-up is separate from the regular limit, so it doesn't reduce what you can contribute otherwise. If you're 55 with individual coverage in 2024, your total limit is $5,150 ($4,150 regular limit plus $1,000 catch-up). If you have family coverage, it's $9,300 ($8,300 regular limit plus $1,000 catch-up).

You only get the catch-up once you turn 55 — the year you turn 55 counts, so if your birthday is in December, you can use the catch-up for that whole year. If you're married and both have HSAs, you each get your own $1,000 catch-up.

What happens if you contribute too much

If you accidentally put more money into your HSA than the limit allows, the IRS charges you a 6% tax on the excess amount. This penalty applies every single year the overage stays in the account, so it compounds quickly if you don't fix it.

If you realize you've overcontributed, you can withdraw the excess amount and the earnings on that excess before your tax important date (usually April 15 of the following year). If you do this, you won't owe the 6% penalty. You will owe income tax on the earnings portion, but not on the excess contribution itself since you already paid tax on that money when you earned it.

The key is to act before you file your taxes. After that date, the penalty applies for each year the money sits there. This is why it's crucial to track what your employer contributes and keep a running total of your own contributions throughout the year.

Contribution limits for different family situations

The IRS recognizes three coverage types: self-only (just you), family, and something called "other coverage" (which is rare and usually applies to people with multiple HSA-may be able to access plans). The vast majority of people fall into self-only or family.

Family coverage includes you, your spouse, and any dependents on your health plan. It doesn't matter how many people are on the plan — the limit is the same whether it's two people or five. If you and your spouse each have separate individual plans, you each get the individual limit, not the family limit.

If you change coverage types during the year — for example, you get married and move from individual to family coverage — you can contribute a prorated amount for each type. Your benefits administrator can help you calculate this, but the basic idea is that you get a portion of each limit based on how many months you had each coverage type.

How to track your contributions throughout the year

Your HSA provider (the bank or financial company that holds your account) sends you statements showing deposits and withdrawals, just like a regular bank account. At the end of the year, they'll send you a form showing total contributions, which helps you verify you haven't gone over the limit.

If your employer contributes, that should show up on your pay stub or in your benefits portal. Some employers contribute in one lump sum at the beginning of the year; others spread it across paychecks. Either way, it counts toward your limit the moment it goes in.

The safest approach is to add up your employer's contribution, then decide how much you want to contribute yourself, making sure the total doesn't exceed the year's limit. If you're not sure of the exact number, contact your employer's benefits team or your HSA provider — they can tell you what's been contributed so far.

Frequently Asked Questions

Can I contribute more if I have a high deductible?

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

What if my employer changes how much they contribute mid-year?

If your employer increases their contribution, that extra amount counts toward your limit for that year. If they decrease it, you have more room to contribute yourself. Your benefits team should notify you of any changes, but it's worth checking your pay stub or benefits portal to confirm.

Do I have to contribute the maximum amount?

No. You can contribute any amount up to the limit — there's no minimum. Many people contribute what they can afford, which might be much less than the annual cap. You're never required to use the full limit.

Can I carry over unused contributions to next year?

Yes. Unlike a Flexible Spending Account (FSA), an HSA has no "use it or lose it" rule. Money you don't spend stays in the account and rolls over to the next year, and the year after that. You can let it grow for decades if you want.

What if I leave my job mid-year?

Your HSA stays yours — it's not tied to your employer. If you've already contributed for the year, that money is yours to keep. If your employer had planned to contribute more before you left, you'll need to decide whether to contribute the rest yourself or stop at what's already been put in.