solo 401k

It’s time you learn to effectively unleash the hidden potential of your Solo 401(k)

The Solo 401(k) is a compelling retirement saving option for small-business entrepreneurs. It has all of the benefits of a traditional 401(k) without the cumbersome and costly administrative requirements. Most importantly, there are several lesser-known, but powerful Solo 401(k) strategies that can take your retirement savings to a whole new level. Despite these appealing benefits, however, a Solo 401(k) is only appropriate in specific circumstances.

Have your Solo 401(k) cake and eat it too

The Solo 401(k) is specifically for the business owner who has no full-time employees. Employees are considered full-time if they work more than 1,000 hours per year, so the majority of Solo 401(k)’s are used by sole proprietors and single-member LLCs. They can, nevertheless, still be effectively used in partnerships, multi-member LLCs, S-corporations, and C-corporations. The number of owners is not the concern, the key is to NOT HAVE ANY FULL-TIME EMPLOYEES.

Like a 401(k), the Solo 401(k) has…

  1. Employee contributions: Up to $19,000 (2019), or 100% of compensation, whichever is less, with an additional catch-up of $6,000 if you’re 50+.
  2. Employer contributions: A profit-sharing contribution of up to 25% of your W-2 compensation or 20% of net self-employment income. A Solo 401(k) is better than a 401(k) in this respect. How many employers give anywhere near 25% matching?
  3. Solo 401(k) Roth Option: It’s good to have the option to make Roth contributions that are considered after-tax contributions, but tax-free distributions.
  4. The overall employee and employer maximum contributions are $56,000 (2019), or $62,000 with the additional $6,000 catch-up contribution if you’re 50+. This includes all employee and employer contributions to all of your 401(k)s. For example, if you had two jobs with two 401(k)s, you can’t contribute $56,000 to each.

What the Solo 401(k) doesn’t have are expensive and challenging administration tasks. The only requirement? An annual report on Form 5500-SF, but only if the plan has $250,000 or more in assets at the end of a given year. However, this can be avoided by rolling funds over to an IRA or Roth IRA to get the balance under $250,000. Please note, all rollovers should be direct rollovers, meaning trustee-to-trustee, and don’t pass through your hands. You can do a direct rollover an unlimited amount of times per year. Indirect rollovers, which go to you first, are limited to one time in a 1 year period. Just avoid indirect rollovers, I’ll leave it at that.

Contribution calculation

When it comes to contributions, you are both the employer and employee. The contribution calculation differs depending on the type of business entity you have.

Sole proprietor or LLC taxed as a sole proprietor, partnership, or multi-member LLC calculation

For these business entities, everything is based on net adjusted business profit, which is net income (Schedule C or K-1) minus 1/2 of the self-employment tax.

Employee Contribution: There is no W-2, so the salary deferral contribution is 100% of the net adjusted business profit up to $19,000, or $25,000 if you’re 50 or older.

Employer Profit Sharing Contribution: 20% of net adjusted businesses profits.

For example, if Sue, a 40-year-old sole proprietor, has $92,000 in net adjusted business profit. She can make a $19,000 contribution as an employee, and as the employer, a profit-sharing contribution of $18,400 ($92,000 * 20%),  for a total contribution of $37,400.

S or C corporation or an LLC taxed as a corporation calculation

Employee Contribution: 100% of W-2 earnings up to $19,000, or $25,000 if you’re 50 or older.

Employer Profit Sharing Contribution: up to 25% of W-2 earnings.

For example, if Sue, age 40, has an S-Corp instead and earned $100,000 in W-2 wages from her S-corp. She can make up a $19,000 contribution as an employee, and $25,000 (25% * $100,000) in profit-sharing contributions for a total of $44,000.

How you can unleash the potential of the Solo 401(k)

It’s time to hold onto your hats and get ready for some heart-pounding retirement savings excitement. Up until now, we’ve reviewed the essential nuts and bolts. Now it’s time to reveal how you unleash the full potential of your Solo 401(k) through…

  • After-tax contributions
  • Spousal Solo 401(k)
  • Tax planning

After-tax contributions

We’ve covered the fact that you can make pre-tax and Roth Solo 401(k) contributions. There is another, not widely known, contribution you can make to a Solo 401(k), a non-deductible after-tax contribution. DO NOT CONFUSE WITH A ROTH CONTRIBUTION – IT IS NOT A ROTH CONTRIBUTION.

After-tax contributions, similar to Solo Roth 401(k) contributions, must be included as income on your tax return, but when distributed, come out tax-free as a return of principal. All earnings, interest, and dividends grow tax-deferred but are taxed as income at the time of distribution.

Here’s an expansion of the previous example to show how to make the after-tax contribution work for you.

Sue (still age 40) earned $100,000 in W-2 wages from her S-corp. She makes a $19,000 contribution as an employee and $25,000 (25% * $100,000) in profit-sharing contribution for a total of $44,000.

If you recall, the max employee deferral + employer profit-sharing match is $56,000 ($62,0000, age 50+). If she set up her Solo 401(k) to allow after-tax contributions, Sue can also make an elective $12,000 after-tax contribution to reach the $56,000 limit.

Roth conversion kicker

I hope you’re sitting down, you’re about to learn the best part of making after-tax contributions. You can convert them, tax-free into a Roth IRA. This is so advantageous, in many instances, it may be better to reduce the profit-sharing percentage and increase the after-tax contributions for a more significant tax benefit.

Of course, determining that level of detail requires an annual tax analysis based on your situation and the current tax laws.

Another difficulty is having the ability for you to make after-tax contributions. It is mostly up to the Solo 401(k) plan provider. They are not required to provide a retirement plan document that allows for it. Indeed, many plans don’t offer this option. This is one of our specialties, and we can help you get this set up.

Spousal Solo 401(k)

Remember the no-employee rule? There is one huge exception – YOUR SPOUSE. The IRS allows the spouse to participate in a Solo 401(k) if he/she has earned income from your business. Yep, that’s right, you can double the family retirement savings with the Spousal Solo 401(k).

If your spouse has enough earned income, they could…

  1. make elective deferrals as your employee, up to the $19,000 employee contribution limit + $6,000 catch-up contribution if 50+
  2. receive the employer’s (your’s ) profit-sharing contribution of up to 25% of compensation
  3. yes, even make after-tax Solo 401(k) contributions

Holy #@$@ that’s one sweet deal. The potential additional retirement savings you and your spouse can make over the long-term is astounding.

Tax planning

The cool part about a Solo 401(k) is that you get to pick the most tax-efficient contribution based on the most recent tax legislation (it seems to change every few years) along with your current and future tax situation. You can opt for the following:

  1. Traditional 
  2. Roth 
  3. After-tax

You’re not married to one or the other. You can mix or match and change your future contributions whenever you want, or I should say when it’s appropriate to do so.

Solo 401(k) vs. other small-business retirement plans

There are other options, such as the SEP IRA or Simple IRA, but they don’t generally compare well for the entrepreneur who qualifies for the Solo 401(k), particularly regarding contribution flexibility. You can learn more and compare small business retirement plans in our post, Small Business Retirement Plans – What You’re Missing.

Is a Solo 401(k) right for you?

Having a Solo 401(k) and implementing these strategies and options are two different things. Careful planning requires analysis. If done properly, a Solo 401(k) is an excellent option for entrepreneurs with no full-time employees. With low administration costs, flexible contribution options, and a powerful savings potential, the Solo 401(k) can help you transition from a successful business owner into a successful retiree.

Are you interested in starting a Solo 401(k), or do you have one but want to take it to the next level? Give us a call to see if it would be beneficial for you!

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