Step-by-Step Guide to Setting Up a Solo 401(k) for Self-Employed Individuals

Step-by-Step Guide to Setting Up a Solo 401(k)
Solo 401(k)

What is Solo 401(k)?

A Solo 401(k) is a retirement savings plan designed specifically for self-employed individuals and small business owners without full-time employees, offering high contribution limits, tax benefits, and flexible investment options.

This guide covers the setup process, contribution rules, and management tips, referencing some of the top providers in the U.S.

Top 5 Solo 401(k) Providers in the U.S.

Fidelity

Known for low-cost investment options and easy online management.

Vanguard

Offers a wide array of funds and solid reputation in investment management.

Charles Schwab

Provides extensive resources, low fees, and diverse investment options.

E*TRADE

Known for flexibility in investments, including real estate.

TD Ameritrade

Offers comprehensive customer service and robust trading tools.

Step-by-Step Guide to Setting Up a Solo 401(k)

1Choosing a Solo 401(k) Provider

Factors to Consider: Evaluate fees, investment options, online tools, and the specific features each provider offers.

Bundled vs. Unbundled Plans: Many providers offer “prototype” plans, bundling both the plan documents and the investment custodian services. Others might require a Third-Party Administrator (TPA) for more customized plans.

Key Components of a Solo 401(k):

  • Plan Documents: The plan adoption agreement, basic plan document, and summary plan description lay out the guidelines.
  • Investment Custodian: Holds the assets within the plan. Providers often offer a basic plan document that is IRS-approved for immediate use.

2Setting Up Your Solo 401(k) Account

Once you’ve selected a provider, complete the necessary paperwork to establish your Solo 401(k).

Required Information: Include your name, address, business type, and Employer Identification Number (EIN).

Traditional and Roth Accounts: If your provider supports both types, establish separate accounts for pre-tax (Traditional) and post-tax (Roth) contributions.

3Determining Your Contribution Amount

Employee Contribution: For 2024, the maximum employee contribution is $22,500 (or $30,000 if aged 50+).

Employer Contribution: Up to 25% of net earnings for self-employed or S-corp owners. Total contributions cannot exceed $66,000 for 2024 ($73,500 if aged 50+).

Calculating Net Earnings:

  • For sole proprietors and partners: Calculate after deducting business expenses, self-employment tax, and any retirement contributions.
  • For S-corps: Employer contributions are based on W-2 wages.

4Making Contributions to Your Solo 401(k)

Contribution Timing: S-corp owners must make employee contributions before year-end. Employer contributions can be made until the business’s tax filing deadline, including extensions.

Payment Methods: Set up regular contributions via automatic transfers or make lump-sum payments as cash flow permits.

Contribution Tracking: Accurate tracking ensures compliance with IRS limits and smooth tax reporting.

5Managing Investments within Your Solo 401(k)

Investment Options: Most providers offer a wide range, including stocks, bonds, mutual funds, ETFs, and even real estate with certain custodians.

Risk Management: Diversify investments to balance risk. Regularly review and rebalance your portfolio to align with retirement goals.

Self-Directed Accounts: Some providers (e.g., E*TRADE) offer self-directed accounts, which allow investments in alternative assets like real estate or private equity.

6Filing IRS Form 5500-EZ (If Required)

When to File: Required once Solo 401(k) assets exceed $250,000.

Purpose of Form 5500-EZ: Reports plan financial conditions and ensures compliance. Failure to file can result in penalties, so consult your provider or TPA for assistance.

7Taking Distributions from Your Solo 401(k)

Distribution Rules: Withdrawals from pre-tax accounts are taxed as regular income and may incur penalties if taken before age 59½.

Roth Accounts: Distributions are tax-free if the account has been open for five years and the account holder is at least 59½.

Required Minimum Distributions (RMDs): Generally start at age 73, although Roth accounts are exempt from RMDs while the owner is alive.

Understanding Plan Documents and Their Roles

  • Plan Adoption Agreement: Customizes the plan for your business, outlining contribution types, eligibility, and loan options.
  • Basic Plan Document: The “rulebook” for Solo 401(k) operations, covering contributions, distributions, and compliance with IRS and DOL requirements.
  • Trust Agreement: Ensures assets are used solely for the plan owner and/or spouse.
  • Loan Documents: If your plan allows loans, these outline terms and repayment details.

Bundled vs. Unbundled Plan Setup

  • Bundled Plans: Providers like Fidelity or Schwab offer simple prototype documents ideal for straightforward needs.
  • Unbundled Plans: For more complex requirements, consider working with a TPA to customize your plan documents and maximize investment options.
  • Cost Considerations: Bundled options are typically lower-cost, while TPAs can add value but may increase administrative fees.

Tax Advantages of a Solo 401(k)

  • Tax-Deferred Growth: Contributions to traditional Solo 401(k) accounts grow tax-deferred, reducing current taxable income.
  • Roth Contributions: While not tax-deductible, Roth contributions grow tax-free, providing tax-free withdrawals in retirement.
  • Contribution Flexibility: Contributions can be adjusted annually based on business performance, making this an adaptable retirement savings tool.

Maximizing Contributions and Retirement Savings

  • High Income Strategy: Business owners with substantial earnings can maximize retirement savings and reduce taxable income.
  • Catch-Up Contributions: For those aged 50 and older, catch-up contributions allow extra savings.
  • Rolling Over Existing Retirement Accounts: Consolidating other retirement accounts into a Solo 401(k) may simplify management and potentially reduce fees.

Common Pitfalls to Avoid

  • Missed Deadlines: Employee contributions must be reported on payroll (for S-corps) before year-end.
  • IRS Compliance: Failing to file Form 5500-EZ when required can lead to penalties.
  • Neglecting Diversification: Solo 401(k) holders should avoid putting all assets into a single investment type or stock.

Conclusion

Setting up a Solo 401(k) is one of the most effective ways for self-employed individuals to save for retirement. By selecting a reputable provider and carefully managing contributions, you can enjoy tax benefits, flexible investment options, and significant growth potential for retirement.

For complex setups or high-contribution strategies, consulting a financial professional can help optimize your Solo 401(k) for long-term success.

Download the Solo 401(k) Guide

Download the guide now and take the first step toward securing your financial future with a Solo 401(k). This guide is crafted to empower self-employed individuals and small business owners with insights into creating a tax-advantaged retirement plan tailored to your unique needs.