Solo 401(k) vs SEP IRA: Which One For You?

Solo 401k

How do you multiply your net worth?  Let the government help.  Here’s how: with both the SEP IRA and the solo 401(k) retirement plans, your investment in your tax-favored retirement

  • creates tax deductions for the money you invest in the plan,
  • grows tax-deferred inside the plan, and
  • suffers taxes only when you take the money from the plan.

Example. You invest $1,000 a month in your retirement. You are in the 40 percent tax bracket (combined federal and state), and you earn 10 percent on your investments. At the end of 30 years, you have $1.58 million in after-tax spendable cash, which comes from (in round numbers):

  • $1.2 million in after-tax cash from the retirement plan ($2 million gross less 40 percent in taxes—we’re taking the entire amount out of the plan in this example)
  • $380,000 in the side fund (created by investing the $400 of monthly tax savings—$1,000 deduction x 40 percent)

If you had no government help on the taxes and invested $1,000 a month in an investment that earned 10 percent (6 percent after taxes), you would have a little more than $950,000.

Winner. The retirement plan wins by $630,000—after taxes ($1.58 million vs. $950,000).

Okay, that’s the big picture. It tells you that tax-advantaged investing multiplies profits. So, do it.

 

Which Plan Is Best for You?

When it comes to picking a retirement plan, you have many choices. If you have no employees in your business, none of the choices are bad. Let’s start there and say you have no employees.  And let’s say further that you are going to choose between the SEP IRA and the solo 401(k).
Key point. As a one-person business, you can operate as a C or S corporation, single member-LLC, or proprietorship and have either the SEP-IRA or the solo 401(k).

 

Why Choose a Solo 401(k)?

There are reasons to choose a solo 401(k). For one, if your goal is to stash away as much cash as possible, then a solo 401(k) may be an option worth looking into—especially if your income is on the smaller side.  With a solo 401(k), annual deductible contributions to the business owner’s account can come from two sources(2 Legged Plan).

Leg 1 (You): Elective Deferral Contributions

For 2021, you can contribute to your solo 401(k) account up to $19,500 ($26,000 if age 50 or older) of your W-2 income if you are employed by your own C or S corporation, or your net self-employment income if you operate as a sole proprietor or as a single-member LLC
that’s treated as a sole proprietorship for tax purposes.

Leg 2 (Your Business): Employer Contributions

On top of your elective deferral contribution, the solo 401(k) arrangement permits an additional employer contribution of up to 25 percent of your corporate salary or 20 percent of your net self-employment income.  For purposes of calculating the employer contribution, your compensation or net self-employment income is not reduced by your elective deferral contribution.
With a corporate plan, your corporation makes the employer contribution on your behalf.  With a plan set up for a sole proprietorship or a single-member LLC, you are effectively treated as your own employer. Therefore, you make the employer contribution on your own behalf.

SEP IRA Has Only One Leg

With the SEP, you look at the employer contribution only—which is up to 25 percent of your W-2 wages if you operate as a corporation or 20 percent of your self-employment income, as adjusted.

Takeaways

The key to big retirement plan savings is to start early and invest well.  And of course, the more money you can invest well, the more your retirement nest egg grows. You have several retirement plan options. In this article, we made a comparison for the business owner with no
employees other than him or herself (if incorporated) and the SEP IRA with the solo 401(k) and offered the
following insights:

  • A SEP IRA is typically easier and cheaper to set up than a solo 401(k).
  • With the solo 401(k), you have to file form 5500EZ once your plan assets exceed $250,000.
  • In most cases, the owner of a one-person business can sock away more money for retirement with the solo 401(k) than with the SEP IRA because the solo 401(k) allows both the employee elective deferral and the employer contribution.

We are involved with a great provider of retirement plans and if you would like to discuss your retirement options, please call me on my direct line at 509-543-7600.

February 2021

This blog does not provide legal, financial, accounting, or tax advice. This blog provides practical information on the subject matter. The content on this blog is “as is” and carries no warranties. TaxMedics does not warrant or guarantee the accuracy, reliability, and completeness of the content on this blog. Please contact us directly to discuss how this information may be used based on your actual facts and circumstances.