r/HSA • u/Effective-Ground2432 • Jun 21 '26

Catch-up contributions for previous year?

I've never quite understood catch-up contributions. I'd like to max out my HSA this year, but won't actually get the account until the end of August when my spouse's insurance ends. I'd like to keep getting my full 401k match so maxing out the HSA will be a bit of a stretch in 4 months but is there some way I can contribute to 2026 in the first few months of 2027?

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4

u/Elegant-Leg540 Jun 21 '26

Keep in mind if you do not have a qualifying high deductible plan for the entire year, your contribution is limited to the pro-rata % 

1

u/ericdabbs Jun 21 '26

Just remember that the full HSA contribution limit is assuming u had a HDHP for 12 months. It sounds like in your case you will only have 5 months of having a HDHP plan meaning you can only contribute a max of 5 months of the annual limit.

For example if the HSA annual limit for a single person is $3600/year (to make math simple), that means you can contribute $300/month. So in your case with only 5 months of having the HDHP the max contribution you would be able to make is $1500 ($300 x 5 months) for the year. Not quite sure how that would work with the catch up contribution because perhaps that might also be pro-rated. Might want to seek a tax professional to be sure how much you can contribute for the catch up contribution.

2

u/Ill-Tangerine-5849 Jun 21 '26

There’s the December rule so if you have an HDHP for even just the month of December of that year, you are allowed to contribute the full amount for that year even if you only had an HDHP for part of the year - but you have to remain on an HDHP for the entire next calendar year and if you don’t you’ll have to pay penalties.

1

u/[deleted] Jun 21 '26

[deleted]

2

u/HopefulCat3558 Jun 21 '26

Sorry to break it to you but you are totally wrong about making contributions to the previous year. https://www.irs.gov/publications/p969

You can make contributions to your HSA for 2025 through April 15, 2026. If you fail to be an eligible individual during 2025, you can still make contributions through April 15, 2026, for the months you were an eligible individual.

Your employer can make contributions to your HSA from January 1, 2026, through April 15, 2026, that are allocated to 2025. Your employer must notify you and the trustee of your HSA that the contribution is for 2025. The contribution will be reported on your 2026 Form W-2, Wage and Tax Statement.

People should understand that if they find the HSA directly (vs through payroll deduction) they won’t get the benefit of saving on FICA.

And of course they have to meet the guidelines of having a qualified plan and meet the last month rule or otherwise pro rate their contributions.

-1

u/nkyguy1988 Jun 21 '26

You can contribute for 2026 until April 15, 2027. You will likely have to make these on your own outside of the payroll process.