Should a sole proprietor open a 401(k)?

  @Money August 20, 2013: 4:31 PM ET
How 401(k) fees eat away at your savings
NEW YORK (Money Magazine)

I'm a sole proprietor. Should I convert my SEP-IRA to a solo 401(k)? -- Jeff, Mendota Heights, Minn.

That depends mostly on how much you make and how much you want to save.

Is your self-employment income less than roughly a quarter million? You can probably put more into the solo 401(k) -- a retirement plan for a one-person business -- says Adam Bergman, a tax attorney at IRA Financial Group in New York City.

Related: Tips for retirement planning

Your contributions to a simplified employee pension IRA, also used at small firms, are capped at 20% of income after a reduction for self-employment taxes; with a solo 401(k), you can sock away up to $17,500 more. Either way, your 2013 limit is $51,000 or, if you're 50 or older, $56,500 in a solo 401(k).

Related: Trick yourself into boosting 401(k) contributions

Higher limits aren't the only perk of a solo 401(k): You can also use it to make Roth 401(k) deferrals of after-tax money that you can withdraw tax-free in retirement. To top of page

Send a letter to the editor about this story to money_letters@moneymail.com.


Maxing out a retirement account
A sole proprietor can save more for retirement in a solo 401(k) than in a SEP-IRA -- up to a point.
Net income Annual contribution limit: SEP-IRA Annual contribution limit: Solo 401(k)
$125,000 $23,300 $40,800
$250,000 $47,900 $51,000
Note: Limits are 2013 figures for sole proprietor under the age of 50.
Source: Fidelity

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