If your employer offers a health savings account and you're only tossing in a few dollars a paycheck, you may be missing one of the few remaining tax breaks that actually rewards you for saving.
For 2025, the IRS raised the amount you can stash in an HSA to $4,300 for individual coverage and $8,550 for family coverage.
Catch-up contributions for those 55 and older stayed at $1,000.
That's up from $4,150 and $8,300 in 2024, a modest bump that quietly outpaces the raises many workers saw on their paychecks.
And unlike a flexible spending account, the money in an HSA never expires.
It rolls over year after year, and you can invest it once your balance crosses a threshold your plan sets.
Here's the part that trips people up: an HSA isn't a spending account.
It's a triple-tax-advantaged savings vehicle.
You put money in before taxes, it grows tax-free, and withdrawals for qualified medical expenses come out tax-free too.
No other account in the tax code works quite like it.
So why do so many people treat it like a debit card for prescriptions and move on?
Because the name sounds like a health expense, not a retirement tool.
The math gets more interesting when you look at what medical costs actually do over time.
Fidelity's long-running estimate puts the average retired couple's health care spending in the hundreds of thousands of dollars.
An HSA is one of the few accounts that lets you set money aside now, let it compound for decades, and then pull it out tax-free to cover those bills.
There's a strategy some savers use: pay for current medical costs out of pocket if you can afford it, keep the receipts, and let the HSA balance grow.
There's no deadline on reimbursing yourself for a qualified expense, so years later you can withdraw that original amount tax-free.
It's not a loophole so much as a feature most people never hear about.
One catch worth knowing: to contribute, you need a qualifying high-deductible health plan.
If you're on a traditional copay plan or Medicare, you're out.
And once you enroll in Medicare, contributions stop.
Contribution limits also apply across all your HSAs combined, so if you switched jobs midyear and have two accounts, you can't double up.
The IRS does allow the "last-month rule," which lets some people contribute the full annual amount if they're eligible on December 1, but you have to stay eligible for a set period afterward or you'll owe taxes and a penalty on the excess.
If your employer kicks in money, that counts toward the cap too.
Many companies contribute a few hundred dollars a year, which effectively lowers what you need to put in yourself to hit the max.
The deadline to fund an HSA for a given tax year is the tax filing deadline the following spring, so 2024 contributions could still be made until April 15, 2025.
A quick reality check before you crank up your payroll deduction: money you route into an HSA is money you can't route into a 401(k) match.
If your employer matches retirement contributions, grab that free money first.
After that, an HSA is often the next best place to send a dollar.
Our take: the HSA is one of the last genuinely generous deals in the tax code, and the annual limit increase is a quiet nudge to use it.
If you have a qualifying plan and you're not maxing it out, you're not just missing a deduction, you're missing decades of tax-free growth.
Final Thoughts
Run your numbers before open enrollment closes.