Roth Solo 401k Providers: What You Need to Know

If you’re self-employed and seeking a powerful tool to maximize your retirement savings while minimizing taxes, the Roth Solo 401(k) is worth a closer look. But not all Roth Solo 401(k) providers are created equal. In this post, we’ll walk you through the different types of providers, their features, and how to choose the best one for your needs.

🧭 Types of Roth Solo 401(k) Providers

There are four main types of Roth Solo 401(k) providers, each with varying levels of flexibility, investment options, and fee structures:

1. Trust Companies (Self-Directed Custodians)

Trust companies specialize in holding funds for alternative investments such as real estate or promissory notes. These providers typically charge fees for holding assets, processing transactions, and sending out funds. They also maintain custody of all investment paperwork. While they offer flexibility in investment options, these costs can add up quickly.

Investment Flexibility: High—allows alternative assets like real estate and promissory notes.
Fees: High—charges for holding, processing, and transactions.
Custody: The trust company holds all assets and investment paperwork.
Best For: Those wanting full-service self-directed investing, but who are okay with higher costs.

2. Brokerage Firms

Firms such as Schwab and E*TRADE currently offer Roth Solo 401(k) options, with Fidelity expected to follow. These providers are suitable for those looking to invest in traditional assets like stocks, mutual funds, and ETFs. While generally lower in fees, they often do not support participant loans or alternative asset investments like real estate.

Examples: Schwab, E*TRADE (Fidelity coming soon).
Investment Flexibility: Limited—typically restricted to stocks, ETFs, and mutual funds.
Fees: Generally low.
Limitations: Often lack solo 401k participant loan provisions, alternative investment access, and does not allow for the mega backdoor Roth strategy
Best For: Investors comfortable with solely investing in equities

3. Banks & Credit Unions

Institutions such as Chase and Bank of America may offer Roth Solo 401(k) accounts, but with very limited investment options. These plans typically allow investments only in CDs and a narrow range of equities, making them suitable for more conservative investors.

Examples: Chase, Bank of America.
Investment Flexibility: Very limited—usually CDs and equities.
Best For: Conservative investors looking for low-risk options.

4. Truly Self-Directed Providers (Checkbook Control)

These providers, such as My Solo 401k Financial, give account holders maximum flexibility. Investors can hold their Roth Solo 401(k) funds at a bank, credit union, or brokerage of their choice. This model enables alternative investments like real estate, precious metals, private equity, and promissory notes. It also allows for plan loans and access to a government-backed $1,500 Auto Contribution Credit spread over three years.

Examples: MySolo401k Financial.
Investment Flexibility: Maximum—invest in anything the IRS allows (real estate, private equity, precious metals, notes).
Control: Full checkbook and wire control.
Extra Benefits:
- Plan loan options.
- $1,500 Auto Contribution Credit (spread over three years).
- Ability to use your own bank or brokerage account.
- Allows for the mega backdoor Roth strategy
Best For: Self-employed investors wanting full flexibility and tax-saving strategies.

💡 Key Features to Consider

✅ Auto Contribution Credit

One major advantage of working with a robust provider like My Solo 401k Financial is the ability to qualify for the $1,500 Auto Contribution Credit, even without making contributions. This credit is spread over three years in $500 increments and claimed using IRS Form 8881.

Offered by select providers like MySolo401k Financial.
Worth up to $1,500 over three years.
No contribution required to qualify.
Must file IRS Form 8881 annually.

✅ Solo 401(k) Participant Loans

With the right plan structure, each participant (e.g., self-employed individual and their spouse) can borrow up to $50,000 or 50% of their plan value. These loans can come from either pre-tax or Roth accounts, depending on plan configuration.

Available only through certain providers.
Borrow up to $50,000 or 50% of your account balance, whichever is less.
Each spouse in a jointly held plan can borrow independently.

✅ IRS Form 5500-EZ Filing

If the combined value of your Solo 401(k) plan exceeds $250,000, you’re required to file IRS Form 5500-EZ. This threshold includes all account types (Roth, pre-tax, after-tax) and must also account for the balances of all participants (such as spouses). Filing is due by July 31 of the following year.

Required when combined plan value exceeds $250,000.
Must include all participant accounts (Roth, pre-tax, after-tax) and all plan assets.
Generally due July 31st annually.

✅ Required Minimum Distributions (RMDs)

Distributions are taxable in the year they are made. For example, a distribution processed in 2025 is taxable for that year, and Form 1099-R will be issued in early 2026.

RMDs are reported on Form 1099-R for the year in which the distribution is made.
For example, 2025 distributions will be reported in early 2026.

🛠 Tips for Choosing a Provider

Know your investment goals: Are you planning to invest in real estate or just mutual funds?
Evaluate control needs: Do you want to write checks and initiate wires yourself?
Watch for hidden fees: Custodians often charge per asset or transaction.
Check for IRS compliance support: Not all providers help with Form 5500-EZ or 1099-R filings.
Ask about the Auto Contribution Credit: Not all plans qualify.

📢 Final Thoughts

Choosing the right Roth Solo 401(k) provider is essential to unlocking the full potential of your retirement plan. Whether you want simplicity and low fees or maximum flexibility and control, understanding your provider options can save you money—and headaches—down the road.

For full-service checkbook control, tax reporting support, and access to the auto contribution credit, providers like MySolo401k Financial stand out as robust and self-directed-friendly options.