The IRS sets annual contribution limits that change each year

The amount you can contribute to a health savings account depends on your coverage type and the calendar year. For 2024, the IRS limit is $4,150 if you have self-only coverage, or $8,300 if you have family coverage. These numbers shift annually—the IRS announces new limits in October for the following year—so you need to check the current year's cap before you deposit money.

Your employer may also set a lower limit than the IRS allows, though this is uncommon. If your employer offers an HSA through payroll deduction, ask your benefits administrator what cap they use. The IRS limit is the legal maximum, but your plan cannot exceed it.

You can contribute up to the limit whether you fund the account yourself, your employer funds it, or both of you do. The total across all sources cannot exceed the annual cap. If you turn 55 during the year, you can add an extra $1,050 (called a catch-up contribution) for that year and every year after, as long as you remain HSA-may be able to access.

Key Takeaways

  • The 2024 IRS limit is $4,150 for self-only coverage and $8,300 for family coverage; these amounts change each year.
  • Contributions from you, your employer, and any other source combined cannot exceed the annual IRS limit.
  • If you turn 55 or older, you can contribute an additional $1,050 per year as a catch-up contribution.
  • You must have an HSA-may be able to access high-deductible health plan to contribute; losing that coverage stops your ability to add money mid-year.
  • Contributions made after the tax year ends (up to the tax filing deadline) count toward the previous year's limit if you were HSA-may be able to access then.

How employer and personal contributions work together

If your employer puts money into your HSA, that amount counts toward your annual limit. For example, if your employer contributes $2,000 and you want to contribute $2,150 (with self-only coverage in 2024), you can do so because the total is $4,150. If your employer contributes $3,000, you can only add $1,150 yourself to stay within the cap.

Employer contributions are not counted as taxable income to you, and your own contributions reduce your taxable income if you deduct them on your tax return. This is one reason HSAs are valuable—the money going in avoids income tax. Keep track of what your employer contributes so you know how much room you have left for your own deposits.

Catch-up contributions for people 55 and older

Once you turn 55, you become HSA catch-up may be able to access and can contribute an extra $1,050 per year on top of the standard limit. This applies for 2024 and may change in future years. The catch-up amount is separate from the main limit—it does not reduce your standard contribution room.

If you turn 55 in June, you can make the catch-up contribution for that year and for all years after, as long as you remain HSA-may be able to access. If you leave your HSA-may be able to access plan, you stop being able to contribute (though money already in the account stays there). If you re-enroll in an HSA-may be able to access plan later, you regain the ability to contribute, including the catch-up if you are still 55 or older.

What happens if you lose HSA may be able to access mid-year

You can only contribute to an HSA during months when you have an HSA-may be able to access high-deductible health plan. If you switch to a different type of coverage—such as a standard PPO, HMO, or Medicare—you stop being HSA-may be able to access immediately. You cannot contribute for the remainder of that year, even if you re-enroll in an HSA-may be able to access plan later.

The IRS allows a pro-rata calculation for the year you lose coverage. If you were HSA-may be able to access for six months, you can contribute up to half the annual limit (rounded down). For example, with self-only coverage in 2024, six months of may be able to access would allow $2,075. If you already contributed more than that amount before losing coverage, you owe taxes and a 20% penalty on the excess.

Contributions after the tax year ends

You can make contributions to your HSA after the calendar year ends, as long as you do so by the tax filing deadline (usually April 15 of the following year). These late contributions count toward the previous year's limit if you were HSA-may be able to access during that year. For example, you can contribute to your 2024 HSA account until April 15, 2025, and that money counts as a 2024 contribution.

This matters for tax purposes: money you contribute by the deadline reduces your taxable income for the year it covers, even if you deposit it months later. However, you must have been HSA-may be able to access during the year you are contributing for—if you lost coverage in December 2024, you cannot make a 2024 contribution in April 2025.

Tracking contributions across multiple accounts or employers

If you have more than one HSA (for example, because you changed employers), contributions to all of them count toward your single annual limit. You are responsible for tracking the total across all accounts. If you contribute $2,500 to one HSA and $2,000 to another, and you have self-only coverage in 2024, you have exceeded the $4,150 limit by $350.

The IRS does not automatically catch this error. If you over-contribute, you must withdraw the excess amount plus any earnings on it by the tax filing deadline, or you will owe income tax and a 6% penalty on the excess for each year it remains in the accounts. Keep records of all contributions you make and all contributions your employers make on your behalf.

How to find the current year's contribution limit

The IRS publishes HSA contribution limits each October on its website (irs.gov) and in Publication 969. Your employer's benefits administrator should also provide the current limit when you enroll or when limits change. If you are unsure, contact your HSA provider directly—they can tell you the limit for your coverage type and confirm how much you have already contributed that year.

Do not assume last year's limit applies this year. The IRS adjusts limits annually for inflation, and the change can be $50 to $150 or more. Checking the current limit takes five minutes and prevents over-contribution mistakes.

Frequently Asked Questions

Can I contribute more if I have a higher deductible?

No. The contribution limit is based only on your coverage type (self-only or family), not on your deductible amount. Two people with self-only coverage have the same $4,150 limit in 2024, even if one has a $1,500 deductible and the other has a $3,000 deductible.

What if my employer contributes more than the IRS limit?

Your employer is responsible for staying within the IRS limit. If they over-contribute, the excess is treated as taxable income to you, and you may owe a 6% penalty. Contact your benefits administrator immediately if you suspect an over-contribution and ask them to correct it.

Do I have to contribute the full amount every year?

No. You can contribute any amount up to the limit, or nothing at all. There is no minimum. However, you must have an HSA-may be able to access plan to contribute at all—you cannot fund an HSA if you are not enrolled in may have access to coverage.

Can I carry over unused contribution room to next year?

No. HSA contribution limits do not roll over. If you do not use your full limit in 2024, you cannot contribute extra in 2025. However, money already in your HSA account does roll over indefinitely—you can save it year after year without losing it.

What if I become HSA-may be able to access partway through the year?

You can contribute a pro-rata amount based on the months you were may be able to access. If you enrolled in an HSA-may be able to access plan in July (six months remaining), you can contribute half the annual limit for that year. You must calculate this yourself and report it correctly on your tax return.