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January 5, 2024
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Maximizing solo 401k contribution

  • January 5, 2024
  • 2 replies
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I want to maximize my 401k contribution, but I want to prioritize my self employment health insurance premiums deduction over the 401k. When I check the Maximize 401k Contribution box, it decreases my health insurance premiums deduction. Is there a way that I can take the full health insurance deduction and have Turbotax automatically calculate what the max 401k contribution would then be?

Best answer by dmertz

Since you've already made the maximum permissible IRA contribution you can ignore my suggestion to make such a contribution.  With a $10,000 self-employed health insurance deduction you have sufficient compensation to support the IRA contribution since $8,000 of that $10,000 is doing double duty.  The IRA contribution therefore has no effect on the amount that you can contribute to the 401(k) while still keeping the $10,000 self-employed health insurance deduction.

 

Fidelity's self-employed 401(k) plan does not include a designated Roth account so no Roth contribution can be made to that plan.

 

There can't also be a SIMPLE IRA plan and there is no point to a SEP plan since the maximum permitted employer contribution to the SEP plan would be the same as the maximum permitted employer contribution to the 401(k) plan.

2 replies

Employee
January 5, 2024

I'll page @dmertz for this and your other question.

Employee
January 5, 2024

TurboTax cannot do that automatically.

 

I do exactly the same since the amount deductible for self-employed health insurance will never be taxed while the amount deducted for 401(k) contributions is only tax-deferred.  You yourself will need to subtract your self-employed health insurance premiums and the deductible portion of self-employment tax from your net profit and contribute only what remains of the net profit.  You won't be able to use the Maximize box to calculate this.

 

If your 401(k) plan supports Roth contributions, you could use the same compensation for which you receive the self-employed health insurance deduction to make a Roth contribution to the 401(k).

 

You might also consider contributing to an IRA an amount equal to the self-employed health insurance or the annual IRA contribution limit, whichever is less.  The same compensation for which you get the self-employed health insurance deduction will support an IRA contribution.  MAGI will determine how much you are eligible to contribute to a Roth IRA or how much of  a traditional IRA contribution might be deductible.

hesformesAuthor
January 5, 2024

Thanks for your thorough reply. I'm not sure I understand all of what you said. I have already contributed the full $8k to my personal, non-business traditional IRA. I don't know if that affects what you said about IRAs. I'm assuming I can't contribute any more to any IRA, but I hope the 8k already contributed doesn't affect what I can do with the 401k as you described above. Also to make sure: If I contribute the maximum to my 401k minus the 10k for insurance premiums, are you saying I can contribute the 10k to a Roth 401k? If so, could that also be a SEP or Simple IRA? I'm not sure Fidelity has a Roth 401k.

 

 

dmertzAnswer
Employee
January 6, 2024

Since you've already made the maximum permissible IRA contribution you can ignore my suggestion to make such a contribution.  With a $10,000 self-employed health insurance deduction you have sufficient compensation to support the IRA contribution since $8,000 of that $10,000 is doing double duty.  The IRA contribution therefore has no effect on the amount that you can contribute to the 401(k) while still keeping the $10,000 self-employed health insurance deduction.

 

Fidelity's self-employed 401(k) plan does not include a designated Roth account so no Roth contribution can be made to that plan.

 

There can't also be a SIMPLE IRA plan and there is no point to a SEP plan since the maximum permitted employer contribution to the SEP plan would be the same as the maximum permitted employer contribution to the 401(k) plan.