Your Own 401(k), Built for the Way You Actually Work

If you're self-employed and you've been putting off retirement savings because the options feel confusing or not quite designed for you, the solo 401(k) is worth a serious look. It's one of the most powerful retirement tools available to freelancers and self-employed professionals — and most people have no idea how good it actually is. At Artfx Financial Planning, we help you set it up, contribute strategically, and integrate it into a broader income plan that works with your real life, not some idealized version of it.

What Makes a Solo 401(k) Different From Other Self-Employed Retirement Accounts

The solo 401(k) — also called a one-participant 401(k) or self-employed 401(k) — is designed specifically for business owners with no full-time employees other than a spouse. What sets it apart is that you contribute in two roles at once: as the employee and as the employer. That dual contribution structure is what allows self-employed professionals to put away significantly more than they could through a standard IRA or even a SEP IRA in many situations.

 

Here's how the three most common self-employed retirement accounts compare:

 

Solo 401(k):

 

  • Who it's best for: Self-employed individuals and sole proprietors with no full-time employees; especially strong for those with moderate to high net income who want maximum contribution flexibility
  • 2026 contribution limit: Up to $72,000 total ($24,500 employee deferral); catch-up contributions available if you're 50 or older
  • Roth option: Yes — you can designate employee contributions as Roth
  • Administrative complexity: Moderate; IRS Form 5500-EZ required once account balance exceeds $250,000

 

SEP IRA:

 

  • Who it's best for: Self-employed individuals who want simplicity; also works well if you have employees, since contributions must be made proportionally for eligible employees
  • 2026 contribution limit: Up to 25% of net self-employment income, capped at $72,000
  • Roth option: No (traditional contributions only)
  • Administrative complexity: Low; minimal paperwork

 

SIMPLE IRA:

 

  • Who it's best for: Small businesses with employees; less commonly the right fit for solo freelancers
  • 2026 contribution limit: $17,000 employee deferral ($21,000 if 50+); employer match required
  • Roth option: Yes, as of recent legislative changes
  • Administrative complexity: Moderate; employer matching is mandatory
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Why the Solo 401(k) Often Wins for Freelancers

The employee deferral component is the key. With a SEP IRA, you can only contribute as the employer — meaning contributions are capped at 25% of net self-employment income. With a solo 401(k), you can also defer up to $23,500 as the employee before the employer contribution calculation even begins. For freelancers with moderate income, that employee deferral alone can mean thousands more in tax-advantaged savings each year.

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What Happens in a Low-Income Year

This is one of the most common concerns we hear: "What if I have a bad year and can't contribute?" The solo 401(k) doesn't require you to contribute anything in years when income is low. There are no minimums, no penalties for skipping a year, and no obligation to maintain a consistent contribution level. You contribute what makes sense based on your income and tax situation each year — which is exactly the kind of flexibility that makes this account a strong fit for freelancers whose earnings don't follow a tidy schedule.

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The Roth Option — and When It Matters

Unlike a SEP IRA, a solo 401(k) allows you to designate your employee contributions as Roth. That means you contribute after-tax dollars now and withdraw them tax-free in retirement. Whether the Roth designation makes sense depends on your current tax bracket, your expected income in retirement, and how your other accounts are structured. It's one of the decisions we work through with you — not a one-size answer.

How Artfx Integrates Your Solo 401(k) Into a Real Income Plan

Opening a solo 401(k) is the easy part. Knowing when to contribute, how much to contribute, and how to time those contributions alongside your quarterly estimated taxes — that's where the planning actually lives. We work with self-employed clients to build contribution strategies that reduce taxable income in high-earning years, preserve cash flow in slower ones, and fit inside a broader picture that includes retirement income targets, insurance coverage, and spending strategy. The account is a tool. The plan is what makes it work.

Who This Service Is For

A solo 401(k) is a strong fit if you're:

 

  • Self-employed, freelancing, or running a sole proprietorship or single-member LLC
  • Earning self-employment income and looking to reduce your current tax burden
  • Ready to start saving for retirement seriously and want to maximize what you can put away each year
  • Concerned about what retirement looks like without an employer-sponsored plan
  • A performing artist, consultant, contractor, or creative professional navigating irregular income

 

If you're not sure whether a solo 401(k) or a SEP IRA is the right move for your situation, that's exactly the kind of question we help you answer.

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What Working With Artfx on Your Solo 401(k) Looks Like

We don't just hand you a form and send you on your way. Solo 401(k) setup and strategy at Artfx is part of an ongoing planning relationship — which means we're with you through the initial setup, the annual contribution decisions, the Roth election question, and the eventual IRS filing threshold when your balance crosses $250,000. Here's what that process looks like:

 

Step 1: Initial Income and Tax Review

 

We look at your net self-employment income, estimated tax liability, and current savings to determine whether a solo 401(k) is the right vehicle and what contribution level makes sense for this year.

 

Step 2: Account Setup and Custodian Selection

 

We guide you through choosing a custodian, completing the plan document, and getting the account open — without the paperwork confusion that makes most people procrastinate on this for years.

 

Step 3: Contribution Timing and Ongoing Strategy

 

We build your contribution schedule around your income flow and quarterly tax payments, revisiting it each year as your income changes. If a Roth designation makes sense, we flag it. If your situation changes, we adjust.

Common Questions About Solo 401(k) Plans

  • Can I have a solo 401(k) if I also have a day job with a 401(k)?

    Yes, in most cases. If you have self-employment income in addition to W-2 employment, you may be able to contribute to both a workplace 401(k) and a solo 401(k). The employee deferral limit applies across all plans combined, but the employer contribution from your self-employment income is calculated separately. We'll help you figure out what's available to you without triggering IRS issues.

  • What's the deadline to open a solo 401(k) and make contributions?

    The plan must be established by December 31st of the tax year for which you want to make contributions. Employee deferrals must be made by year-end as well, but employer contributions can typically be made up until your tax filing deadline, including extensions. Timing matters — we build this into your year-end planning conversations.

  • Is a solo 401(k) complicated to manage?

    For most self-employed clients, the day-to-day administration is straightforward. The main filing requirement is IRS Form 5500-EZ, which only kicks in once your account balance exceeds $250,000. We help you understand what's required at each stage so nothing catches you off guard.

  • How is a solo 401(k) different from a SEP IRA for someone just starting out?

    If your net self-employment income is relatively modest, the SEP IRA's simplicity can make it appealing. But if you're looking to maximize contributions — especially using the employee deferral component — or if you want the Roth option, the solo 401(k) is usually the stronger choice. The right answer depends on your income level, tax situation, and how hands-on you want to be with the account.

  • Can a freelancer with irregular income really use a solo 401(k) effectively?

    Yes — and it's often a better fit for irregular income than people expect. Because there's no minimum contribution requirement, you can put in a lot in a strong year and very little (or nothing) in a slower one. We help you build a contribution approach that accounts for income variability rather than assuming a steady paycheck.