Bypassing Employer HSA and Opening My Own - Any Tax Downsides?

So I've been looking at my employer's HSA options through Bank of America and honestly, I'm not impressed with what they're offering. My company doesn't even match contributions - they just handle the payroll deductions for convenience. I've been doing some research and thinking about opening my own HSA through Fidelity in 2024 instead. Their investment options look way better, and the fees seem lower too. My plan would be to fund it myself throughout the year and then claim the tax deduction when I file my 2024 taxes. Before I make the switch though, I wanted to check if there are any tax disadvantages to this approach? Will I miss out on any benefits by not using my employer's HSA program? Does the IRS care where I have my HSA as long as I'm eligible to contribute to one? I'm trying to maximize my tax benefits while getting better investment options.

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19 comments

Andre Rousseau

You can absolutely open and fund your own HSA, but you should be aware of one significant tax advantage you'll lose. When HSA contributions are made through employer payroll deductions, they're exempt from FICA taxes (Social Security and Medicare taxes), which saves you about 7.65%. If you fund your own HSA directly, you'll still get the federal and state income tax deductions when you file, but you won't get that FICA tax break. That said, if the investment options and fees at Fidelity are substantially better, the long-term investment growth might outweigh the FICA tax hit, especially if you're investing the full annual contribution and have many years until retirement.

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Andre Rousseau

For 2024, the individual HSA contribution limit is $4,150. The FICA tax rate is 7.65% (6.2% for Social Security and 1.45% for Medicare). So you'd be paying about $317 more in taxes by funding your own HSA instead of using payroll deductions. That's essentially the "cost" of switching to Fidelity's better investment options and lower fees. If you're particularly concerned about maximizing tax advantages right now, another option is to contribute through your employer's HSA for the FICA tax benefits, then periodically transfer the money to your Fidelity HSA. Many HSAs allow occasional free transfers to other HSA providers.

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Zoe Stavros

The service mainly helped confirm my tax approach was correct and identified all the forms I needed. It analyzed my pay stubs and tax documents to verify I wasn't missing anything when switching HSA providers. For the FICA tax issue specifically, it actually flagged that for me! It showed exactly how much I was giving up in FICA tax savings by not using my employer's plan, and calculated whether my improved investment options would likely make up for it over time based on my retirement timeline.

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GalaxyGlider

Just wanted to update after trying taxr.ai for my HSA situation. I was totally on the fence about it but decided to give it a shot after reading about it here. The document analysis was really thorough! It confirmed I was losing about $230 in FICA tax savings by funding my own HSA, but showed that with Fidelity's investment options and my 20+ year timeline, I'd likely come out ahead by over $8k in the long run even accounting for the lost FICA benefit. The analysis made the decision super clear for me. Just submitted my HSA paperwork to Fidelity yesterday!

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Mei Wong

If you're still having trouble deciding whether the switch is worth it, you might want to try calling the IRS directly to get official clarification. I was in a similar situation last year and spent DAYS trying to get through to someone at the IRS. Finally discovered https://claimyr.com which got me connected to an actual human at the IRS in about 20 minutes. Their video showing how it works: https://youtu.be/_kiP6q8DX5c really made me feel better about trying the service. The IRS agent confirmed exactly what was mentioned above - you do lose the FICA tax advantage with self-funded HSAs, but there's no other tax disadvantages.

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Amara Okafor

I take back what I said about Claimyr. After continuing to get nowhere with the IRS for over a week, I gave in and tried it. Within 45 minutes I was talking to an actual IRS rep who walked me through all the HSA self-funding options. The agent confirmed there's no issue with funding your own HSA vs employer's plan, except for the FICA tax thing everyone mentioned. I'm going with Fidelity like you were considering - their investment options are way better than my employer's HSA. The FICA hit is worth it for me because I'm planning to let that money grow for 30+ years.

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Giovanni Colombo

No tax events when transferring between HSAs - it's completely tax-free! Most HSA providers allow 1-4 free transfers out per year. I just set a quarterly calendar reminder. The process isn't too bad. You'll need to keep both HSAs open. First, set up the Fidelity HSA. Then fill out Fidelity's "Transfer Assets to HSA" form each time you want to move money over. My employer's HSA does charge $25 for outgoing transfers, but I just do it quarterly to minimize those fees. Even with those charges, I'm still coming out way ahead with the FICA savings plus Fidelity's better investment options.

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Avery Davis

One thing to keep in mind is that if you're planning to use your HSA for current medical expenses rather than letting it grow for retirement, the FICA tax savings become more important since you won't benefit from decades of investment growth. But if you're treating your HSA as a retirement account (which is the optimal strategy), then Giovanni's approach of contributing through payroll and transferring quarterly is genius - you get the FICA savings AND the better investment options. Also worth noting that some employers reimburse HSA fees, so definitely check if yours covers any of those transfer fees before making your decision!

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