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

The amount you can contribute to a Health Savings Account (HSA) is set by the IRS and increases most years to keep pace with healthcare costs. For 2024, you can put in up to $4,150 if you have individual coverage, or $8,300 if you have family coverage. These limits explore to the total of all your contributions in a calendar year — from your paycheck, from your employer, and from you directly.

The IRS announces new limits each October for the following year. If you're looking at 2025 or beyond, check the IRS website or your plan documents for the current year's cap. The limit for your coverage type is the ceiling; you can contribute less if you choose.

One important rule: you can only contribute to an HSA if you're enrolled in a high-deductible health plan (HDHP). The moment you drop that coverage or switch to a different type of plan, you stop being able to add money. Money already in the account stays there and can still be used for medical expenses.

Key Takeaways

  • The 2024 contribution limit is $4,150 for individual coverage and $8,300 for family coverage, with limits increasing most years.
  • Your total contributions from all sources — employer, payroll deductions, and personal deposits — cannot exceed the annual limit.
  • You must be enrolled in a high-deductible health plan to contribute; losing that coverage stops your ability to add money that year.
  • If you turn 55 during the year, you can add an extra $1,000 catch-up contribution for that year and every year after.
  • Contributions you make yourself are tax-deductible on your federal return, even if you don't itemize deductions.

How employer contributions and your own deposits count toward the limit

If your employer puts money into your HSA, that counts against your annual limit. So does any money you contribute yourself through payroll deduction or a direct deposit. The IRS treats all of these as one pool. If your employer contributes $2,000 and you contribute $1,500, you've used $3,500 of your $4,150 limit for the year.

This matters because some employers contribute generously and some don't. If your employer maxes out the account on your behalf, you won't be able to add more of your own money that year. Check your plan documents or ask your benefits administrator what your employer's contribution strategy is before you plan your own deposits.

Money that rolls over from previous years doesn't count toward the current year's limit. If you had $10,000 in your HSA at the end of 2023, that $10,000 stays in the account and doesn't reduce how much you can add in 2024.

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

Starting the year you turn 55, you can contribute an additional $1,000 per year on top of the standard limit. This is called a catch-up contribution and is meant to help people save more as they approach retirement. If you're 55 and have family coverage, your limit becomes $9,300 instead of $8,300.

You can make catch-up contributions every year after you turn 55, as long as you remain enrolled in an HDHP. If you drop the high-deductible plan, you lose the ability to make catch-up contributions that year, though you keep the money already in the account.

What happens if you contribute more than the limit

If you put in more than the IRS allows, the excess amount is subject to a 6% excise tax each year it stays in the account. The IRS calls this an excess contribution. You also have to pay income tax on the excess amount itself. This is a penalty situation, not a common one, but it can happen if you're not tracking contributions carefully across multiple sources.

If you realize you've over-contributed, you can withdraw the excess and the earnings on it before your tax filing important date (usually April 15 of the following year) and avoid the 6% tax. You'll still owe income tax on the earnings portion, but not the penalty. After the important date passes, the penalty applies each year until the excess is gone.

The most common way this happens is when someone changes jobs mid-year and both employers contribute to an HSA without coordinating. If you're in that situation, contact both employers' benefits teams when ready to understand what was contributed and when.

Limits if you enroll mid-year or lose coverage mid-year

If you enroll in an HDHP partway through the year, you can still contribute the full annual limit for that year — the IRS allows this under the testing period rule. You don't have to prorate the limit based on how many months you were covered. However, you must stay enrolled in an HDHP through December 31 of the following year, or you'll owe back taxes and penalties on the contributions.

If you lose your HDHP coverage before the end of the year, your contribution limit for that year is reduced. The IRS calculates it based on how many months you were covered. If you had family coverage for six months and individual coverage for six months, your limit would be half of the family limit plus half of the individual limit. This is where tracking matters: contact your plan administrator to confirm what you can contribute for the remainder of the year.

How to track your contributions across employers and accounts

If you have multiple HSAs or if your employer contributes while you also contribute, you need to track the total. The IRS doesn't automatically know what you've put in; it's your responsibility to report it correctly on your tax return. Many people use a spreadsheet or their HSA provider's online portal to keep a running total.

Your HSA provider sends you a statement each year showing what was contributed and by whom. Keep these statements. If you have more than one HSA (which is allowed but unusual), you'll need statements from each one to calculate your total. Some people end up with multiple accounts by accident when they change jobs; consolidating them into one account makes tracking simpler.

If you're self-employed or a contractor, you're responsible for tracking your own contributions. You can't over-contribute by accident the way an employee might, but you do need to know the limit and stay under it when you file your taxes.

State tax treatment of HSA contributions

Most states treat HSA contributions the same way the federal government does — as tax-deductible. However, a few states don't recognize the federal deduction. If you live in Alabama, New Jersey, or Tennessee, your state may tax HSA contributions even though the federal government doesn't. Check your state's tax authority website or ask a tax professional if you're in one of these states.

Some states also have their own HSA rules that differ slightly from federal rules. These are rare, but they exist. If you're moving to a new state or live near a state border, it's worth confirming that your HSA strategy still works under that state's rules.

Frequently Asked Questions

Can I contribute to an HSA if my employer already maxed it out?

No. The limit is the total of all contributions from all sources combined. If your employer contributed $8,300 to a family HSA, you cannot add any more that year. You can contribute in future years if your employer contributes less or not at all.

What if I had two different high-deductible plans in the same year?

You can only have one HSA at a time, but you can move money between accounts. If you switched plans mid-year, your contribution limit is based on which plan you had each month. Contact both plan administrators to confirm the breakdown and adjust your contributions if needed.

Do I have to contribute the maximum amount?

No. The limit is a ceiling, not a requirement. You can contribute $500, $2,000, or any amount up to the limit. Many people contribute what they can afford and let the account grow over time.

Can I put in a lump sum at the end of the year?

Yes, as long as you're still enrolled in an HDHP on December 31. You can make contributions anytime during the year or even in early January for the previous year, as long as you file your taxes by the important date.

What happens to my HSA limit if I get married mid-year?

Your coverage type determines your limit, not your marital status. If you switch from individual to family coverage when you marry, your limit for that year is prorated based on how many months you had each coverage type. Contact your plan to confirm the exact calculation.