401(K) for individuals

The solo 401(k) made for the self-employed

Simple, low-cost, full-scale – our flexible Solo 401(k) plans allow self-employed individuals to maximize their retirement savings and still enjoy the same advantages of a big business plan.

401(k) plans for
Sole proprietors
401(k) plans for
Independent contractors
401(k) plans for
Freelancers
Mega Backdoor Roth
Pre-tax & Roth contributions
Loan options
Expert selected fund list
Flexible eligibility requirements
Recordkeeping services
Profit-sharing contribution
Pre-tax & Roth contributions
Automatic vesting
Clients with this plan

Who can take advantage?

Our Solo 401(k) plans provide a great alternative opportunity for self-employed individuals and small business owners who don’t have common law employees.

Ideal for
Independent contractors
Freelancers
Sole proprietorship businesses
C Corp, S Corp, LLC, & DBA

Talk to an expert!

Our team of experts will help you get set up, ensuring you have exactly what you need for your business right from the start.

Book a Free Consultation
RETIREMENT plans

What Solo 401(k) plans are available through Ubiquity?

Whether you need a simple setup and maintenance process or full-scale customization options without the big-box prices, Ubiquity’s plans are here to meet you where you are.

View Plan Pricing
Smart, Simple, Flexible
Single(k)®

A flexible solo 401(k) plan for businesses that have no other full-time employees besides the owner and their spouse or business partner.

Our Most Popular
Single(k) Plus®

A record-kept solo 401(k) plan with the choice of pre-selected or customizable investment options.

401(K) for individuals

The benefits at a glance

Higher contribution limit
Grow your nest egg by contributing over 3x more than a traditional IRA.
Tailor-made or turnkey fund lists
You have options to choose expert-selected fund lists or customize your own.
Business tax deductions & other savings
Enjoy the same tax deductions  bigger businesses get and reduced taxable income for pre-tax contributions.
Act as employer & employee
Combine the features of a group 401(k) and a profit-sharing plan so you get the best of both worlds.
Expert help from real humans
We mean it when we say we’re here for you. Get expert plan consulting during setup.
Upgrade & grow
Seamlessly upgrade your plan to include full-time employees as your business grows.

Small Business Guide to Solo 401(k) Plans

What is a Solo 401(k) plan?

A Solo 401(k) – also known as an individual 401(k) or one-participant 401(k) – is a retirement plan option designed specifically for self-employed individuals or solopreneurs. With this type of plan, you can contribute as both employer and employee for more tax savings.

How much does a Solo 401(k) plan cost?

Solo 401(k)s are known for being more cost-effective. Specifically, at Ubiquity, our Solo(k) plan boasts a flat fee approach, meaning no percentage-based costs and no surprises.

What are the main advantages of a Solo 401(k)?
  • Higher contribution limits
  • More tax deductions and credits
  • Loan feature in many plans
  • Full control and flexibility
  • Roth options depending on your provider
  • Your spouse can be counted as your employee
What do I need to know when setting up my Solo 401(k) for the first time?
  1. You need to have self-employment income (1099, etc.)
  2. You can’t have employees, besides a spouse
  3. Your plan must be established by December 31 to make contributions for this tax year
What makes Ubiquity’s 401(k) plans ideal for Sole Operators?
  • Transparent, flat fee pricing
  • Easy online setup and maintenance (minimal paper pushing!)
  • Broad investment, profit sharing, and loan options
  • Built in support, from filing to compliance
How to set up a Solo 401(k)
  • Step One: Confirm You Qualify
  • Step Two: Choose Your Plan Features
  • Step Three: Choose Your Plan Provider
  • Step Four: Design Your Plan
  • Step Five: Start Saving
What are the current contribution limits for a Solo 401(k)?

In 2025, small business owners can contribute up to $23,500 as the employee ($31,000 if 50+) and add up to 25% of your compensation as the employer. This brings the total to $66,000, or $73,500 with Catch-up Contributions. The deadline to set up the plan is December 31, and the deadline to make employer contributions is the tax filing deadline, including extensions.

Solo 401(k) vs a SEP IRA plan

A Solo 401(k) differs from a SEP IRA plan primarily with its features. On the Solo plan side, these 401(k)s will usually include higher contribution limits, loan and Roth options, employee deferrals, and more, while SEP IRAs don’t. But with these features, a Solo 401(k) will slightly differ in its complexity level.

Your key takeaway

If you’re a self-employed individual that wants to boost your retirement savings faster, a Solo 401(k) offers powerful features like higher contribution limits, flexible customizability, broad investment options and tax advantage, and more.

TESTIMONIALS

What our customers are saying

“It was easier than I expected, and with her help I am making smarter choices for my future! Great customer service!”

Alan B.

"I am not a 401(k) expert and the team at Ubiquity I work with has been patient, kind and are willing to help me obtain the knowledge I need to grow in my career.”

Ellen M.

"I have had a Single(K) with Ubiquity since 2016. Every time I work with their Customer Service team, I always get outstanding, knowledgeable representatives who truly want to help me.”

Amy C.

“Couldn’t be happier. I’ve been with Ubiquity Retirement since 2012 and find the online portal very easy to use.”

Cathy J.

Frequently asked questions

Why is a solo 401(k) beneficial for small businesses?

Our solo 401(k)s meet small business owners where they are without extra complexities or compliance challenges. You get the same retirement incentives as big businesses, but with more flexibility, simplicity, and better cost savings.

What solo plans do you offer?

We offer Single(k)®️ and Single(k) Plus®️. Both are designed to provide self-employed business owners and their spouses with the ability to meet their retirement goals with major features like higher contributions, streamlined administration, recordkeeping services, and potential tax savings. The best part is as your business grows and you get employees, your plan can be easily upgraded to our full-service plans.

How do both plans work?

Both plans combine the convenience of 401(k) payroll deductions with the flexibility of a profit-sharing plan. With either, you can set aside pre-tax or Roth (post-tax) money and make a profit-sharing contribution. You won’t pay taxes on your pre-tax savings or their earnings until you withdraw the money at retirement.

Can non-owners join my plan?

In addition to owners and partners, spouses (who work for your business) are eligible to participate in your retirement plan.

  • Single(k): Can only accommodate two participants in total. EX. A business owner and their spouse, or a business owner and their business partner.
  • Single(k) Plus: Can only accommodate four participants in total. EX. A business owner, their business partner, and two spouses.
What other major features do these include?

With both, you have access to:

  • Hardship withdrawals
  • Investment opportunities
  • Loans
  • Rollovers
  • Mega backdoor roth (Single(k) only)

Both plans differ in terms of investment options and more, but our dedicated team can walk you through a plan comparison.

How can I get started?

Answer a few questions to see which plan is right for you. If you’d rather speak to our team first, schedule a free consultation with us. Our team will gladly walk you through our offerings and answer any questions or concerns before you officially sign up.

Resources for solo 401(k)

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Solo 401(k) Provider

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Do Gig Workers Need a 401(k) Plan? The Answer is Yes!

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401k Pricing Flat Fees vs Percentage Fees

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