What counts as a contribution to your HSA

A contribution is money you put into your HSA account. It can come from your paycheck (taken out before taxes), from your own pocket, or from your employer. The IRS sets a limit on how much total money can go in during each calendar year, regardless of where it comes from. If your employer puts in $1,500 and you put in $1,000, that is $2,500 of your annual limit used up.

The contribution limit changes most years because it is tied to inflation. For 2024, the limit is $4,150 if you have individual coverage under an HSA-may be able to access health plan, or $8,300 if you have family coverage. These numbers are set by the IRS and announced each fall for the following year. If you turn 55 during the year, you can contribute an extra $1,000 that year and every year after, as long as you stay enrolled in an HSA-may be able to access plan.

Money you contribute is yours to keep. If you do not spend it on medical costs, it stays in the account and rolls over to the next year. Unlike a flexible spending account (FSA), there is no "use it or lose it" rule for HSAs.

Key Takeaways

  • The annual contribution limit for 2024 is $4,150 for individual coverage or $8,300 for family coverage, and these limits change each year with inflation.
  • Contributions can come from your paycheck, your own money, or your employer, but the total from all sources cannot exceed the yearly limit.
  • If you contribute through payroll deduction, the money comes out before income tax and Social Security tax are calculated, lowering your taxable income.
  • People age 55 and older can contribute an additional $1,000 per year, called a catch-up contribution, as long as they remain enrolled in an HSA-may be able to access plan.
  • Unused contributions roll over to the next year indefinitely; there is no important date to spend the money or lose it.

How payroll contributions reduce your taxes

When your employer deducts HSA contributions from your paycheck, that money is removed before your employer calculates federal income tax, Social Security tax, and Medicare tax. This is called pre-tax contribution. If you earn $50,000 per year and contribute $3,000 to your HSA through payroll, your taxable income drops to $47,000. You pay income tax on $47,000 instead of $50,000.

The tax savings depend on your tax bracket. Someone in the 22% federal tax bracket who contributes $3,000 saves roughly $660 in federal income tax alone. Add in Social Security and Medicare taxes (7.65% combined), and the total savings is closer to $900 per year. This is why payroll deduction is the most tax-efficient way to fund an HSA if your employer offers it.

If you contribute money from your own bank account instead of through payroll, you can still deduct the contribution on your tax return when you file, but you have to remember to do it. Payroll deduction happens automatically and requires no tax paperwork.

Contributing after you leave a job

Once you own an HSA, you can keep contributing to it even if you change jobs or leave your employer's health plan. You cannot use payroll deduction anymore, but you can send money directly to your HSA provider (the bank or financial company that holds your account). You can also set up automatic transfers from your checking account.

If you move to a job with a different HSA-may be able to access plan, you can continue funding the same HSA account you already have. The account follows you; it does not belong to your employer. This is different from an FSA, which you lose when you leave the job.

You have until the tax filing important date (usually April 15) to make contributions for the previous calendar year. If you want to contribute for 2024, you can do so until April 15, 2025, as long as you were enrolled in an HSA-may be able to access plan on December 31, 2024.

What happens if you contribute too much

If you put more money into your HSA than the annual limit allows, the excess amount is subject to a 6% excise tax each year it stays in the account. The IRS also counts the excess as taxable income. This penalty applies to the overage amount, not your entire account.

If you realize you have over-contributed, you can withdraw the excess and the earnings on that excess before the tax filing important date. This removes the penalty, though you will owe income tax on the earnings portion. Your HSA provider can help you calculate the excess and process the withdrawal.

Over-contributions most often happen when someone changes jobs mid-year and both employers contribute to an HSA without coordinating, or when someone forgets they already made contributions and adds more. Keeping track of contributions from all sources—employer, your own deposits, and any catch-up amounts—prevents this problem.

Employer contributions and your choices

When an employer contributes to your HSA, that money counts toward your annual limit. Some employers contribute a fixed amount each year (for example, $500 for individual coverage). Others contribute a percentage of the premium you would pay for a traditional health plan. A few employers let you choose whether to receive the contribution as HSA funding or as a wage increase instead.

Employer contributions are not taxable income to you, and they do not count as wages for Social Security or Medicare purposes. This makes them a form of tax-free compensation. If your employer offers a choice between an HSA contribution and higher pay, the HSA contribution is usually the better deal from a tax standpoint, unless you have no medical expenses and do not plan to use the account.

You are not required to contribute your own money if your employer contributes. Some people let their employer's contribution sit in the account and never add to it themselves. Others contribute additional money from their paycheck to build up a larger balance for future medical costs or retirement.

Contribution limits for people with family coverage

If your HSA-may be able to access plan covers more than one person (you, a spouse, children, or dependents), the contribution limit is higher. For 2024, family coverage allows $8,300 per year instead of $4,150. This single limit applies to the entire family account, not per person. If you have a family HSA and both you and your spouse work, you cannot each contribute $8,300; the combined total from all sources cannot exceed $8,300.

Some families have one person as the account owner and the other as a spouse or dependent. The account owner controls the account, but contributions from the employed spouse's paycheck still count toward the family limit. Coordination between spouses is important if both have access to payroll deduction through their employers.

The catch-up contribution of $1,000 applies per person, not per family. If both spouses are 55 or older, you can contribute an additional $2,000 total ($1,000 each) on top of the $8,300 family limit, for a total of $10,300.

Frequently Asked Questions

Can I contribute to an HSA if I am not enrolled in an HSA-may be able to access health plan?

No. You must be enrolled in an HSA-may be able to access high-deductible health plan on the first day of the month in which you contribute. If you switch to a different type of health plan mid-year, you can only contribute a prorated amount for the months you were enrolled in the HSA-may be able to access plan. Your HSA provider can calculate the correct amount.

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

The contribution limit is how much money you can put into the account per year. The deductible is how much you must pay out of pocket for medical care before your insurance starts paying. They are separate numbers. You might contribute $4,150 per year but have a $2,000 deductible, or vice versa.

If my employer contributes to my HSA, do I have to contribute too?

No. Employer contributions are optional for you to match. You can let your employer's contribution be the only money in the account, or you can add your own contributions up to the remaining limit. The choice is yours.

Can I change how much I contribute through payroll during the year?

Yes. You can usually change your payroll contribution amount during open enrollment or if you have a may have access to life event (marriage, birth, job change, loss of coverage). Contact your employer's benefits department or your payroll administrator to make the change.

What happens to my HSA contributions if I lose my HSA-may be able to access coverage?

The money stays in your account. You cannot make new contributions once you are no longer enrolled in an HSA-may be able to access plan, but the balance you have already built up remains yours to use for medical costs at any time in the future.