MARK KOHLERMain Street Professionals, Main Street Professionals, Main Street Professionals, Main Street Professionals, Main Street Professionals, LLC · Owner at Main Street Professionals, LLC

Yes, You Can Have a Solo 401k and a Work 401k — Here’s How the Wealthy Stack Them

29 Nov 2025 · 1 min

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Mark Kohler explains how to maximize retirement savings by combining a solo 401k with a work 401k. You can contribute to both simultaneously, and those 50 and older get catch-up contributions. The strategy lets you grow significant tax-free wealth over decades.

Chapters

If you have a side hustle, you can have a solo 401k. You can do your own 401k and still have a 401k at work. You can have both. Now, this year, if you're under age 50, I can put another 23,000 into that 401k. That's a couple grand a month. Now, if your business is doing well and you're like, okay, can I do enough to put away my IRA? 500amonth, and then another couple grand if I really bring on that other client or that other project or that other revenue stream and plow that away in 20 years, you got 2 million, tax free. This is the combo. This is what the rich do. They take the Roth, they take the 401k, they pick and choose. And then when you have a good year, bam, you throw down on both. Now, if you're over age 50 this year, you can do $30,500 on top of the IRA. So that's 38,500. If I do that for 15 years, I've got 1.5 million.