Annual HSA Contribution Limits and How They Work

The IRS sets your HSA contribution limit based on your coverage type

The amount you can put into a Health Savings Account each year depends on whether you have individual coverage or family coverage under a high-deductible health plan (HDHP). For 2024, the IRS limit is $4,150 for individual coverage and $8,300 for family coverage. These limits change each year — the IRS announces new amounts in October for the following year.

Your employer may contribute to your HSA, and that money counts toward your annual limit. If you have both an employer contribution and make your own contributions, the total of both cannot exceed the IRS limit for your coverage type. If you exceed the limit, you owe taxes on the overage plus a 6 percent excise tax, so tracking contributions matters.

If your coverage changes mid-year — for example, you move from individual to family coverage — you can contribute a prorated amount for each period. The IRS allows you to calculate this month by month, so a change in July does not prevent you from contributing for the months you had each type of coverage.

Key Takeaways

• The 2024 HSA contribution limit is $4,150 for individual coverage and $8,300 for family coverage, and these amounts increase most years.
• Employer contributions and your own contributions both count toward the same annual limit, so you must track both to avoid overfunding.
• If you change coverage types mid-year, you can contribute a prorated amount for each period you were covered.
• Once you turn 55, you can add an extra $1,000 per year to your HSA, even if you have not maxed out the regular limit.
• Contributions you make yourself are tax-deductible, and employer contributions are not taxed as income to you.

How employer contributions affect your limit

When your employer puts money into your HSA, that amount reduces the amount you can contribute yourself. If your employer contributes $2,000 and the individual limit is $4,150, you can contribute only $2,150 more that year. Your HSA provider should show both employer and employee contributions on your annual statement, making it easy to see how much room you have left.

Some employers contribute on a per-paycheck basis, so you may not know the full year's amount until late in the year. If you contribute before knowing the employer total and end up over the limit, you can request a refund of your excess contributions before the tax filing deadline. The refund itself is not taxed, but any earnings on the excess are taxed and subject to the 6 percent penalty.

The catch-up contribution for people 55 and older

Once you turn 55, the IRS allows you to contribute an additional $1,000 per year to your HSA, regardless of your coverage type. This is called a catch-up contribution and does not require you to have maxed out the regular limit first. You can make catch-up contributions until you enroll in Medicare, at which point you must stop contributing to the HSA (though you can still spend the money that is already there).

The catch-up amount does not change year to year — it stays at $1,000. If you are married and both spouses have individual HSAs and are both 55 or older, each spouse can make a separate $1,000 catch-up contribution, for a combined $2,000 per household.

What happens if you contribute too much

If you put more money into your HSA than the IRS limit allows, you owe income tax on the excess amount plus a 6 percent excise tax. The excise tax applies each year the excess sits in the account, so removing it quickly matters. You can request a refund of excess contributions and any earnings on them, but the earnings portion is taxable income for the year you contributed the excess.

To avoid this, ask your HSA provider for a year-end statement showing total contributions from all sources. If you find you have overcontributed, contact your provider immediately — most allow you to request a refund of excess contributions through the tax filing deadline of the following year (usually April 15). Include the refund on your tax return to avoid penalties.

Contribution deadlines and timing

You can contribute to your HSA anytime during the year, and contributions made by the tax filing deadline of the following year (usually April 15) count toward the previous year's limit. For example, a contribution made on April 1, 2025 can count toward your 2024 limit if you have not already maxed it out. Your HSA provider will ask you which year the contribution is for, so be clear when you submit it.

If you contribute through payroll deduction at work, those contributions are taken out before taxes are calculated, which lowers your taxable income automatically. If you contribute on your own, you deduct the amount on your tax return using Form 1040 and Schedule 1, or you may be able to deduct it if your employer offers a cafeteria plan and you contribute through that.

Coverage changes that affect your contribution room

If you lose HDHP coverage or switch to a different coverage type mid-year, your contribution limit changes for that year. The IRS allows you to calculate contributions on a month-by-month basis, so you contribute only for the months you actually had coverage. If you had individual coverage for six months and then switched to family coverage for six months, you would calculate the prorated limit for each period and add them together.

If you drop HDHP coverage entirely and move to a standard health plan, you can no longer contribute to your HSA starting the month after coverage ends. Money already in the account stays there and can be spent on medical expenses anytime, but new contributions are not allowed. If you later re-enroll in an HDHP, you can resume contributions at that time.

Frequently Asked Questions

Can I contribute more if my deductible is very high?

No. The IRS 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 both have the same contribution limit if the coverage type is the same.

What if my employer and I both contribute to my HSA?

Both contributions count toward the same annual limit. If your employer puts in $3,000 and you want to contribute $2,000, your combined total is $5,000, which exceeds the $4,150 individual limit for 2024. You would need to reduce your contribution or request a refund of the excess.

Do I have to contribute the maximum amount each year?

No. You can contribute any amount up to the limit, or nothing at all. Contributing less does not let you carry the unused amount to the next year — each year's limit is separate. However, the money you do contribute stays in the account indefinitely and can be spent on medical expenses anytime.

What happens to my HSA if I turn 65 and enroll in Medicare?

You must stop making contributions once you enroll in Medicare. The money already in your account remains yours and can be spent on medical expenses, Medicare premiums, and may have access to long-term care insurance. Withdrawals for non-medical expenses are taxed as income but no longer subject to the 20 percent penalty.