The 2024 HSA contribution limit depends on your coverage type

For 2024, you can contribute up to $4,150 if you have self-only coverage or $8,300 if you have family coverage. These are the amounts set by the IRS for the tax year. If you are 55 or older, you can add an extra $1,000 catch-up contribution on top of either limit.

The limit applies to all contributions combined — money you put in, money your employer puts in, and money anyone else contributes on your behalf all count toward the same annual cap. You cannot exceed the limit without facing taxes and penalties on the overage.

These limits reset on January 1 each year. The IRS adjusts them annually for inflation, so the 2025 limits will be different. Check with your HSA provider or the IRS website in December if you are planning for the next year.

Key Takeaways

  • The 2024 limit is $4,150 for self-only coverage and $8,300 for family coverage, set by the IRS.
  • If you are 55 or older, you can contribute an additional $1,000 catch-up amount in the same year.
  • All contributions from you, your employer, and anyone else count toward the same annual limit.
  • Exceeding the limit triggers a 20 percent tax on the overage plus regular income tax, so tracking contributions matters.

How employer contributions affect your personal limit

If your employer contributes to your HSA, that money counts against your annual limit. For example, if your employer puts in $2,000 and you have self-only coverage, you can only contribute $2,150 more yourself (the $4,150 limit minus the $2,000 employer contribution).

Your employer should tell you how much they plan to contribute before the year starts. Some employers contribute a fixed amount; others match a percentage of what you contribute. Either way, you need to know the number to avoid going over the limit.

If you change jobs mid-year, contributions from both employers count toward the same limit. Keep records of what each employer contributed so you do not accidentally exceed the cap.

What happens if you contribute too much

If you put more money into your HSA than the annual limit allows, the IRS taxes the overage at your regular income tax rate plus an additional 20 percent penalty. You also have to pay tax on any earnings that overage generated while it sat in the account.

The way to fix an overage is to withdraw the excess amount and any earnings on it before the tax filing deadline (usually April 15 of the following year). Your HSA provider can help you calculate how much to withdraw. If you do not withdraw it in time, you owe the taxes and penalty when you file.

Some HSA providers offer a "correction" process that lets you request a withdrawal of excess contributions without penalty if you catch the mistake early enough. Contact your provider as soon as you realize you have gone over the limit.

Catch-up contributions if you are 55 or older

Once you turn 55, you can contribute an extra $1,000 per year to your HSA on top of the standard limit. This is called a catch-up contribution and is separate from the regular $4,150 or $8,300 limit.

You can make catch-up contributions every year you are 55 or older and still have an HSA, even after you retire. The catch-up amount does not change year to year — it stays at $1,000 unless the IRS adjusts it for inflation.

If you are married and both you and your spouse have HSAs with family coverage, you each get your own $1,000 catch-up. You cannot combine them or transfer one person's catch-up to the other account.

Mid-year changes to your coverage

If you change your coverage type during the year — for example, you go from self-only to family coverage — your contribution limit changes on the date the new coverage starts. You can contribute the prorated amount for each coverage type based on how many months you had each one.

The math works like this: divide the annual limit by 12, multiply by the number of months you had each coverage type, and add them together. If you had self-only coverage for six months ($4,150 ÷ 12 × 6 = $2,075) and family coverage for six months ($8,300 ÷ 12 × 6 = $4,150), your total limit for the year is $6,225.

Report coverage changes to your HSA provider right away. They can adjust your contribution limit in the system and help you track what you have already contributed under each coverage type.

Tracking contributions across multiple sources

Your HSA provider sends you a statement each month or quarter showing all deposits. This includes contributions you made yourself, employer contributions, and any catch-up amounts. Keep these statements throughout the year so you know exactly where you stand against the limit.

If you have changed employers or HSA providers during the year, you may have contributions recorded in more than one place. Gather statements from every source — your current employer, your previous employer if you left mid-year, and any HSA provider you used earlier in the year. Add them all together to get your true total.

Some employers use payroll deduction to fund your HSA, which means the contribution happens automatically with each paycheck. Others make lump-sum deposits. Either way, it all counts toward your limit, so you need to see the full picture before you make any additional contributions yourself.

Frequently Asked Questions

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

No. Once you enroll in Medicare Part A or Part B, you are no longer allowed to make HSA contributions. You can still withdraw money from an existing HSA for any reason without penalty, but contributions stop. If you are still working and have not yet enrolled in Medicare, you may be able to keep contributing, but check with your plan administrator first.

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

You will exceed the limit, and the overage will be subject to the 20 percent penalty plus income tax. Contact your employer and HSA provider immediately to arrange a withdrawal of the excess before the tax filing deadline. Your employer may also be able to reverse the contribution if caught quickly enough.

Do HSA contributions reduce my taxable income?

Yes, if you contribute through payroll deduction, the money comes out before taxes are calculated. If you contribute directly to the HSA yourself, you can deduct the contribution on your tax return. Either way, the contribution lowers your taxable income for the year.

Can I contribute to an HSA and a Flexible Spending Account in the same year?

No. You cannot have both an HSA and a healthcare Flexible Spending Account (FSA) at the same time. You must choose one or the other. Some employers offer a limited-purpose FSA that covers only dental and vision, which you can use alongside an HSA — ask your employer whether that option is available.