How a Self-Employed Freelancer Can Build a Solid Retirement Without a 401(k)

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Building a reliable retirement plan self employed workers can count on is absolutely possible — it just requires choosing the right account and staying consistent. As of July 2025, freelancers in the United States have access to several powerful tax-advantaged retirement vehicles, including the Solo 401(k) and SEP-IRA, which in many cases offer higher annual contribution limits than traditional employer-sponsored 401(k) plans. The key difference is that you have to build this system yourself — no HR department will hand you enrollment forms.

The urgency is real. According to a 2023 Federal Reserve report on household economic well-being, roughly 31% of non-retired adults have no retirement savings at all, and self-employed workers are disproportionately represented in that group. Meanwhile, the gig economy continues to grow — an estimated 59 million Americans performed freelance work in 2024, according to Upwork’s Freelance Forward survey, many without any retirement safety net in place.

This guide is written for freelancers, independent contractors, consultants, and sole proprietors who earn income outside of a traditional employer. By the end, you will know exactly which retirement accounts are available to you, how much you can contribute, how the tax savings work, and how to actually open and fund an account this year.

Step 1: What Retirement Accounts Are Available to Self-Employed Freelancers?

Self-employed freelancers have access to four primary retirement account types: the Solo 401(k), the SEP-IRA, the SIMPLE IRA, and the Traditional or Roth IRA. Each has distinct contribution limits, eligibility rules, and administrative requirements — and the right choice depends on your income level, business structure, and whether you have employees.

The Four Main Account Types

The Solo 401(k), also called an Individual 401(k) or Self-Employed 401(k), is available to any self-employed person with no full-time employees other than a spouse. It allows contributions in two roles: as an employee (up to $23,500 in 2025) and as an employer (up to 25% of compensation), for a combined total of up to $70,000.

The SEP-IRA (Simplified Employee Pension IRA) is the easiest to open and maintain. It has no annual filing requirements and allows contributions of up to 25% of net self-employment income, capped at $70,000 in 2025. It does not allow employee-style catch-up contributions.

The SIMPLE IRA (Savings Incentive Match Plan for Employees) is designed for self-employed individuals who do have employees. The 2025 employee contribution limit is $16,500, with a $3,500 catch-up for those 50 and older. It requires employer matching contributions.

The Traditional IRA and Roth IRA are available to anyone with earned income, regardless of employment status. The 2025 contribution limit is $7,000 ($8,000 for those 50 and older). These are excellent supplements to higher-limit accounts.

What to Watch Out For

If you have any full-time employees other than a spouse, you cannot use a Solo 401(k). In that case, a SEP-IRA or SIMPLE IRA will be your primary options. Always confirm your business structure and employee headcount before choosing an account type.

Step 2: Which Retirement Account Is Best for a Self-Employed Person With Variable Income?

For most freelancers with variable income and no employees, the Solo 401(k) is the best retirement plan self employed workers can use — it offers the highest potential contribution, both pre-tax and Roth contribution options, and loan provisions not available in IRAs. However, the SEP-IRA wins for simplicity, and a Roth IRA is the best complement when your income dips below the phase-out threshold.

How to Do This

Use this decision framework to choose your primary account:

• If you are a sole proprietor or single-member LLC with no full-time employees and you want maximum contribution flexibility, choose the Solo 401(k).
• If you want the simplest setup with minimal paperwork and still want high limits, choose the SEP-IRA.
• If you have employees or a partnership structure, consider the SIMPLE IRA.
• Regardless of which primary account you choose, open a Roth IRA as a secondary account if your modified adjusted gross income is below $150,000 (single filer) in 2025.

Financial planner Michael Kitces, CFP, has written extensively about the Solo 401(k)’s advantage for high-earning freelancers, particularly those who earn more than $100,000 annually in net self-employment income.

What to Watch Out For

If your net self-employment income is low (below $50,000), the SEP-IRA and Solo 401(k) may produce similar results. At lower income levels, the employee-contribution side of the Solo 401(k) becomes the differentiator — you can contribute $23,500 as an employee even if your employer contribution is small. A comparison of Roth vs. Traditional IRA structures can help you decide how to layer your tax strategy on top of either account.

Below is a full comparison of the four primary retirement account options available to freelancers in 2025:

Step 3: How Much Can a Self-Employed Person Contribute to a Retirement Account Each Year?

The total annual contribution limit for a self-employed retirement plan in 2025 is $70,000 across Solo 401(k) and SEP-IRA accounts — but how much you can actually contribute depends on your net self-employment income after the self-employment tax deduction. Understanding the exact calculation prevents costly over-contribution penalties.

How to Do This

Your net self-employment income for contribution purposes is your gross self-employment income minus business deductions, minus the deductible portion of self-employment tax (which is 50% of the 15.3% SE tax). The IRS provides a step-by-step worksheet for self-employed retirement plan contributions that walks through this calculation exactly.

For a Solo 401(k), the contribution calculation works in two parts:

1. Employee contribution: Up to $23,500 in 2025 (or 100% of net self-employment income, whichever is less).
2. Employer contribution: Up to 20% of net self-employment income (not 25% — sole proprietors use 20% due to the SE tax adjustment).

For a SEP-IRA, sole proprietors contribute up to 20% of net self-employment income (again, 20%, not 25%, after applying the SE tax deduction formula), capped at $70,000.

What to Watch Out For

A common mistake is contributing based on gross income rather than net self-employment income after the SE tax deduction. Over-contributing triggers a 6% excise tax on excess contributions, per IRS guidance on excess IRA contributions. Use the IRS worksheet or consult a CPA — this is one area where the math matters.

For freelancers who want a deeper dive into the Solo 401(k) structure specifically, this detailed Solo 401(k) guide for self-employed workers covers every contribution scenario with worked examples.

Step 4: How Do I Actually Open a Solo 401(k) or SEP-IRA as a Freelancer?

Opening a retirement plan self employed workers can use takes less than 30 minutes at most major brokerage firms — and for a SEP-IRA, you can even open one and make contributions for the prior tax year up until your tax filing deadline, including extensions. The process is straightforward once you know where to go and what information to bring.

How to Do This

To open a Solo 401(k), follow these steps:

1. Obtain an Employer Identification Number (EIN) from the IRS — this is free and takes minutes at IRS.gov’s EIN application page.
2. Choose a brokerage that offers Solo 401(k) plans: Fidelity, Charles Schwab, Vanguard, and TD Ameritrade (now part of Schwab) all offer no-fee options.
3. Complete the plan adoption agreement — this is the legal document establishing your plan. Most brokerages have this online.
4. You must establish the plan by December 31 of the tax year for which you want to make employer contributions. The SECURE 2.0 Act extended the deadline for employee contributions to the tax filing deadline.
5. Fund the account by transferring money from your business checking account.

To open a SEP-IRA, the process is even simpler — no EIN is required for a sole proprietor with no employees, and you can open one directly at Fidelity, Vanguard, or Schwab with just your Social Security Number. The deadline to open and fund a SEP-IRA is your tax filing deadline plus extensions (typically October 15).

What to Watch Out For

Not all brokerages offer the same Solo 401(k) features. Fidelity allows Roth contributions within the Solo 401(k) and has no annual fees. Vanguard‘s Solo 401(k) does not currently support Roth contributions. If tax-free Roth growth is important to you, verify Roth availability before opening the account.

Step 5: What Should a Self-Employed Person Invest Their Retirement Savings In?

Once your account is open and funded, the most effective default strategy for most freelancers is a portfolio of low-cost index funds — specifically, a mix of a total stock market fund and a total bond market fund, adjusted for your age and risk tolerance. Vanguard’s research consistently shows that low-cost index investing outperforms actively managed funds over 15+ year periods for the vast majority of investors.

How to Do This

A simple, proven investment approach for freelance retirement accounts:

• Core equity holding: A total U.S. stock market index fund (e.g., Vanguard’s VTSAX or Fidelity’s FZROX, which has a 0% expense ratio).
• International diversification: A total international stock index fund (e.g., VXUS or FZILX) representing 20–30% of your equity allocation.
• Bond allocation: A total bond market index fund (e.g., VBTLX or FXNAX), with the percentage roughly equal to your age as a rule of thumb.
• Target-date funds: If you want full automation, a target-date fund (e.g., Vanguard Target Retirement 2050) handles asset allocation and rebalancing automatically.

The most important variable is the expense ratio — the annual fee charged by the fund. Over 30 years, a difference of just 1% in fees can reduce your ending balance by over $100,000 on a $200,000 portfolio. Fidelity and Vanguard both offer index funds with expense ratios under 0.05%.

What to Watch Out For

Avoid holding individual stocks as your primary retirement strategy — the concentration risk is too high for a single-income household. Diversification through index funds is the evidence-backed foundation. Rebalance your portfolio once per year or use a target-date fund that does it for you.

Step 6: How Do Retirement Contributions Reduce Taxes for Self-Employed Workers?

Contributions to a Solo 401(k) or SEP-IRA directly reduce your adjusted gross income (AGI), meaning every dollar you contribute lowers the amount of income subject to federal (and often state) income tax. For a freelancer in the 22% federal bracket who contributes $20,000 to a SEP-IRA, that is a $4,400 reduction in federal taxes owed — money that would have gone to the IRS instead compounds in your retirement account.

How to Do This

Report your Solo 401(k) or SEP-IRA contributions on Schedule 1 (Form 1040), Line 16 (self-employed SEP, SIMPLE, and qualified plans). You do not need to itemize deductions to claim this — it is an above-the-line deduction available to all self-employed filers. Make sure to check the current standard deduction amounts and other available deductions when planning your annual tax strategy.

Freelancers should also be aware of the self-employment tax deduction: you can deduct 50% of your SE tax (15.3% on net earnings up to $176,100 in 2025) from gross income before calculating your retirement contribution limit. This is not optional — the IRS requires this adjustment in the contribution formula.

If you are tracking deductions carefully, pairing your retirement contributions with other self-employment deductions (home office, health insurance premiums, business expenses) can dramatically reduce your overall tax liability. A comprehensive look at self-employed tax deductions you might be missing can help you capture every dollar available.

What to Watch Out For

Roth Solo 401(k) contributions and Roth IRA contributions are made with after-tax dollars — they do not reduce your current-year AGI. They grow tax-free and are withdrawn tax-free in retirement. If you expect to be in a higher tax bracket in retirement, Roth contributions may be the better long-term choice, even without the immediate deduction. For a head-to-head breakdown, see this Roth IRA vs. Traditional IRA comparison.

Frequently Asked Questions

Can I set up a retirement plan self employed if I have inconsistent income?

Yes — the SEP-IRA is ideal for freelancers with variable income because contributions are entirely flexible from year to year. You can contribute 20% of your net self-employment income in a strong year and contribute nothing in a slow year without penalty. There are no minimum annual contribution requirements, making it the most forgiving option for income that fluctuates month to month.

What is the deadline to open a Solo 401(k) for this tax year?

You must establish a Solo 401(k) plan by December 31 of the tax year in which you want to make employer-side contributions. However, under the SECURE 2.0 Act of 2022, the deadline for employee-side elective deferrals was extended to the tax filing deadline, including extensions (typically October 15 of the following year). This means you may still have time to reduce your current tax bill even after year-end, as long as the plan was adopted on time.

Should I choose a SEP-IRA or Solo 401(k) if I earn $80,000 a year freelancing?

At $80,000 in net self-employment income, the Solo 401(k) allows a significantly larger contribution than the SEP-IRA. A SEP-IRA would allow approximately $14,750 (20% of net income after SE tax adjustment), while a Solo 401(k) would allow that same $14,750 as employer contribution plus up to $23,500 as an employee contribution — totaling over $38,000. The Solo 401(k) clearly wins at this income level for maximizing retirement savings.

Can a freelancer contribute to both a Solo 401(k) and a Roth IRA in the same year?

Yes, as long as your modified adjusted gross income is below the Roth IRA phase-out threshold ($150,000 for single filers in 2025), you can contribute to both accounts simultaneously. This strategy gives you the best of both worlds: immediate tax deductions from the Solo 401(k) and tax-free growth from the Roth IRA. Many financial advisors recommend this two-account approach for freelancers in the 22%–24% federal tax brackets.

Do I need an LLC or business license to open a retirement account as a freelancer?

No formal business entity is required. Sole proprietors operating under their own name can open a SEP-IRA or Solo 401(k) using their Social Security Number. You will need an EIN (free from the IRS) to open a Solo 401(k), but obtaining one does not require an LLC — sole proprietors qualify. A business license is not required by any brokerage to open a self-employed retirement account.

What happens to my Solo 401(k) if I hire employees later?

If you hire a full-time employee (someone who works 1,000+ hours per year) other than your spouse, you can no longer contribute to your Solo 401(k) as a new plan. You would need to either convert the plan to a regular 401(k) and include the employee, switch to a SEP-IRA, or set up a SIMPLE IRA. Plan for this in advance — the administrative and cost implications of adding employees are significant for small freelance businesses.

How do I catch up on retirement savings if I’m self-employed and starting late?

Freelancers aged 50 and older can take advantage of catch-up contributions: an extra $7,500 in a Solo 401(k) (for a total employee contribution of $31,000 in 2025) and an extra $1,000 in a Roth or Traditional IRA. Starting in 2025, the SECURE 2.0 Act also introduced a “super catch-up” of $11,250 for those aged 60–63. If you are starting late, maximizing these limits alongside reducing expenses is the fastest path to a meaningful retirement balance — as one success story on retiring comfortably with a late start demonstrates.

Is Social Security enough retirement income for a self-employed person?

Social Security alone is not sufficient for most freelancers. The average Social Security retirement benefit in 2025 is approximately $1,976 per month, according to the Social Security Administration — well below the income most retirees need to cover housing, healthcare, and daily expenses. Self-employed workers do pay into Social Security via the self-employment tax and are entitled to benefits, but those benefits should be treated as a supplement to personal retirement savings, not a primary income source. For a full picture of what to expect, review Social Security benefits projections for 2026.

Can I roll over an old 401(k) from a previous employer into my Solo 401(k)?

Yes — most Solo 401(k) plans accept rollovers from previous employer 401(k) plans, Traditional IRAs, and other qualified retirement accounts. Rolling over a prior 401(k) into your Solo 401(k) consolidates your accounts, may offer better investment options, and preserves your ability to use the “backdoor Roth IRA” strategy without the pro-rata rule complication. Confirm rollover acceptance with your brokerage before initiating the transfer.

What budgeting approach helps freelancers save for retirement consistently?

The most effective budgeting method for freelancers with irregular income is the percentage-based budget: allocate a fixed percentage (typically 15–20%) of every client payment to retirement, rather than a fixed dollar amount. This approach scales up in strong months and down in slow ones, keeping retirement savings proportional to income. Pairing this with the best budgeting apps for freelancers makes the process nearly automatic.