How Much You Can Put Into an HSA Each Year

Annual contribution limits are set by the IRS and change each year

The amount you can contribute to a health savings account depends on the type of health insurance plan you have and whether you cover yourself alone or your family. The IRS sets these limits annually, and they increase most years to keep pace with inflation. For 2024, the limit for individual coverage is $4,150 per year, and for family coverage it is $8,300 per year. These numbers shift each January, so you will want to check the current year's limit before you contribute.

Your HSA contribution limit is tied directly to your health plan. You can only contribute to an HSA if you are enrolled in a high-deductible health plan (HDHP) — a plan with a deductible of at least $1,600 for individual coverage or $3,200 for family coverage in 2024. If your plan does not meet this threshold, you cannot open or contribute to an HSA, even if you have one from a previous job.

The contribution limit applies to all HSAs you own combined. If you have multiple HSA accounts at different banks or through different employers, your total contributions across all accounts cannot exceed the annual limit. This matters most if you switch jobs mid-year or have accounts from previous employers still open.

Key Takeaways

• The annual HSA contribution limit for 2024 is $4,150 for individual coverage and $8,300 for family coverage, and these limits increase most years.
• You can only contribute to an HSA if you are enrolled in a high-deductible health plan, and your employer may contribute on your behalf.
• If you contribute more than the annual limit, you owe taxes on the excess and a 20 percent penalty unless you correct it by the tax filing deadline.
• Contributions made after you turn 65 are treated as regular income and taxed, though they can still pay for may have access to medical expenses without penalty.

How employer contributions affect your personal limit

If your employer contributes to your HSA, that money counts toward your annual limit. This is the most common scenario for people with HSAs. Your employer's contribution and your own contributions combined cannot exceed the IRS limit for the year. For example, if your employer contributes $2,000 to your HSA and you want to contribute your own money, you can add up to $2,150 more (assuming individual coverage in 2024) without exceeding the $4,150 limit.

You should receive a statement from your employer or HSA custodian showing how much has been contributed on your behalf. Check this before you make your own contributions, especially if you have changed jobs during the year. If you contributed to an HSA at a previous employer and then opened a new one at your current job, both contributions count toward the same annual limit.

What happens if you contribute too much

Excess contributions — money you put in above the annual limit — are subject to a 20 percent penalty tax in addition to regular income tax. The IRS taxes the excess amount twice: once as income and once as a penalty. This makes over-contributing expensive and something to avoid.

If you discover you have over-contributed, you can correct it by the tax filing deadline for that year (usually April 15, plus extensions). You will need to withdraw the excess amount plus any earnings on that excess. Your HSA custodian can help you calculate the earnings portion. If you do not correct it by the deadline, you owe the penalty when you file your tax return.

The most common reason for over-contribution is not tracking contributions across multiple accounts or not accounting for an employer contribution made late in the year. Keeping records of all contributions — yours and your employer's — helps you stay within the limit.

Catch-up contributions if you are 55 or older

If you are 55 or older, you can contribute an additional $1,000 per year to your HSA on top of the standard limit. This is called a catch-up contribution and works similarly to catch-up contributions for retirement accounts. For 2024, this means someone 55 or older with individual coverage can contribute up to $5,150 total ($4,150 plus $1,000).

You can make catch-up contributions only in years when you are 55 or older on December 31 of that tax year. Once you turn 65 and enroll in Medicare, you can no longer make catch-up contributions to an HSA. However, you can still withdraw money from your existing HSA to pay for may have access to medical expenses without penalty.

Contributing after you turn 65 or enroll in Medicare

Once you are 65 years old or enroll in Medicare, you can no longer contribute to an HSA. This is a hard stop — no new contributions are allowed, even if you have not reached the annual limit. If you are still working and covered by an HDHP at 65, you must stop HSA contributions that year.

Money already in your HSA remains yours and can still be used to pay for may have access to medical expenses without penalty or tax. You can also withdraw money for non-medical expenses after 65, though you will owe income tax on the withdrawal (but not the 20 percent penalty that applies before age 65). This makes an HSA a useful backup retirement savings account if you do not spend all the money on medical costs.

Mid-year changes to your coverage

If you change health plans during the year — for example, if you leave an HDHP for a different type of plan — your contribution limit for that year is reduced. The IRS uses a pro-rata calculation based on the number of months you were covered by an HDHP. If you were covered by an HDHP for six months of 2024 and then switched to a different plan, your limit would be roughly half the annual amount.

If you have already contributed more than your reduced limit allows, you will need to withdraw the excess by the tax filing deadline to avoid the penalty. Your HSA custodian can help you calculate the pro-rata limit based on your coverage dates.

Losing HDHP coverage also means you cannot make new contributions to your HSA, though you can still use the money already in the account for may have access to medical expenses without penalty.

Maximizing your HSA contributions over time

Because HSA money rolls over year to year and grows tax-free, contributing the maximum amount each year builds significant savings for future medical costs. Unlike a flexible spending account (FSA), which has a use-it-or-lose-it rule, HSA funds stay in your account indefinitely. This makes HSAs particularly valuable for people who can afford to pay medical expenses out of pocket and let their HSA balance grow.

If your employer offers an HDHP with an HSA, contributing the full amount you are allowed — especially if your employer also contributes — is often a smart financial move. The tax savings alone (no income tax, no payroll tax, no Medicare tax on HSA contributions) can amount to 25 to 40 percent of the contribution, depending on your tax bracket. Over decades, this tax advantage compounds significantly.

Frequently Asked Questions

Can I contribute to an HSA if I have Medicare?

No. Once you enroll in Medicare, you cannot make new contributions to an HSA. However, you can continue to use money already in your HSA to pay for may have access to medical expenses, including Medicare premiums and out-of-pocket costs. If you withdraw money for non-medical reasons after 65, you owe income tax but not the 20 percent penalty.

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

If your employer makes a contribution that pushes you over the annual limit, you must withdraw the excess plus any earnings by the tax filing deadline. Your employer should coordinate contributions with you to avoid this. If it happens, contact your HSA custodian to calculate the excess and earnings amount.

Do HSA contributions reset on January 1?

Yes. The annual contribution limit resets each January 1, and the IRS typically announces the new limit in September of the prior year. Any money you did not contribute in the previous year does not roll over — you start fresh with the new year's limit. However, money you already have in your HSA account does roll over indefinitely.

Can I contribute to an HSA if I am covered by my spouse's health plan?

It depends on the type of plan. If your spouse's plan is an HDHP and you are covered as a family member, you can contribute to an HSA using the family coverage limit. If your spouse's plan is not an HDHP, you cannot contribute to an HSA. You cannot be covered by both an HDHP and a non-HDHP at the same time and still contribute.

What is the difference between my contribution limit and my deductible?

Your contribution limit is how much money you can put into the HSA account each year. Your deductible is how much you must pay out of pocket for medical care before your insurance starts paying. These are separate numbers. A high-deductible plan has a high deductible but allows you to save money in an HSA to help pay it.