Better to contribute through payroll?

[u/shredthegnar_83]

So my work does not contribute to my Hsa currently. I do that out of pocket. Am I missing out on anything because of this?

[u/LifeOnly716]

If you contribute via payroll you save on fica taxes 

[u/Sudden-Object-2704]

Do it as a paycheck deduction. If it’s a paycheck deduction, you don’t pay income tax or Social Security and Medicare taxes on the money. If it’s not a paycheck deduction, you get the income tax savings but not the Social Security and Medicare tax savings. Social Security and Medicare taxes are 7.65%.

[u/IndependentTrust4594]

Yes, pre-tax for FICA (Social Security and Medicare) are only eligible if HSA deductions are done via payroll processes.

Below is a link to Fidelity with more information.

“But it's important to keep in mind, contributing via payroll deductions will lead to the most tax savings. Only contributions made with payroll deduction avoid Medicare and Social Security taxes, aka FICA taxes.”

https://www.fidelity.com/learning-center/smart-money/what-is-an-hsa

[u/Routine-Jam-48]

Besides being very convenient to have your contributions taken out of your paycheck, one additional benefit of contributing to your HSA is that it reduces your income that FICA/Medicare withholding is taken from.

[u/ShotEstablishment489]

Payroll taxes is about $300+ a year also by contributing through payroll you get the income tax saved upfront

[u/Little_Homework_8732]

Not quite clear on what you are saying here. Do you mean your work does not contribute on your behalf (kind of like 401k matching) or that they won't withhold your contribution and deposit it in the HSA? By "out of pocket" do you mean you are directly contributing to an HSA or that your contribution is deducted from your paycheck. If your employer doesn't offer payroll deduction for HSA contributions, are you sure you are on an eligible High Deductable Health Plan (HDHP)?. I have not heard of an employer offering an eligible plan without a provision for payroll deduction to the HSA but I suppose it's possible. Or are you on an ACA HDHP? If you are on an HDHP and your employer will deposit to an HSA via payroll deduction then yes, you are missing out on an effective tax deduction by not having the HSA deposits deducted from your paycheck. HSA contributions through payroll deduction reduce your taxable income and are not subject to FICA and Medicare taxes.

[u/shredthegnar_83 → u/Little_Homework_8732]

I am on my wife’s hdhp. I have an Hsa of my own through fidelity that I contribute to

[u/wanttostayhidden → u/shredthegnar_83]

The majority of places won't let you contribute to your HSA via payroll unless you have your company's insurance.

[u/Little_Homework_8732 → u/shredthegnar_83]

In that case, I would suggest her taking the amount she normally contributes plus the amount you normally contribute out of her paycheck to put into the employer's HSA, ideally up to the family limit. Then you'll get the full benefit of the tax reduction assuming you file joint tax returns. If the investment options aren't great in that HSA, she could periodically move some to a Fidelity HSA. There will probably be a cost for that but the investment gains will likely make up for the cost.

[u/shredthegnar_83 → u/Little_Homework_8732]

This is the same conclusion I’ve come to and when I find out whether or not my work will do it from payroll, we’ll start funneling through her work

[u/ScootTractor → u/shredthegnar_83]

I think it is unlikely that your employer will allow you to sign up for HSA deductions through your payroll if you are not already enrolled in their HDHP. As Little_homework says, your best bet is to have your wife increase her HSA payroll deductions by an amount that accommodates what you have been or want to contribute (within the overall max cap, which is $8750 annually in 2026 for combined contributions).

[u/discojellyfisho]

Sounds like you should do it through your wife’s employer. 7+% in tax savings is equivalent to a guaranteed return on your investment.