How to Rollover Other Retirement Accounts Into a Solo 401k

Reading Time: 6 Minutes

Table of Contents

Retirement planning is a journey that evolves over an individual’s working life, often accumulating in various types of accounts that reflect changing jobs, financial strategies, and personal circumstances. Over time, one might find themselves with a collection of retirement accounts, each with its unique benefits and constraints. 

For self-employed professionals or those running small businesses, the Solo 401k emerges as an attractive vehicle for its blend of high contribution limits and flexibility. This guide delves into the meticulous process of consolidating other retirement savings into a Solo 401k, aiming to simplify the transition while enhancing your retirement portfolio.

  1. Understand the Basics of Solo 401k

Grasping the nuances of a Solo 401k will not only instill confidence in your decision but also illuminate its advantages over other retirement vehicles.

What is a Solo 401k?

Often hailed as one of the best-kept secrets in the retirement planning world, a Solo 401k is tailored for self-employed individuals, freelancers, and small business owners. It’s structured much like a traditional 401k but is available exclusively to businesses without full-time employees other than perhaps a spouse. This format permits participants to make contributions both as the employee and employer, maximizing potential savings.

Advantages Over Other Plans

While IRAs and SEP accounts have their merits, the Solo 401k stands out for its higher contribution limits, loan provisions, and flexibility in investment options. With the capability to act as both an employer and an employee, Solo 401k participants can potentially shelter a substantial portion of their income from taxes.

Eligibility Criteria


The first checkbox to tick off when considering a Solo 401k is eligibility. To qualify:

  • You must have earned income from self-employment.
  • You should not have any full-time employees in your business, except potentially a spouse.

Remember, even if you hold a regular job with a standard 401k but also earn income from a side hustle or freelance work, you could be eligible for a Solo 401k for that secondary income.

  1. Identify Accounts Eligible for Rollover

To optimize the benefits of a Solo 401k, it’s essential to ascertain which retirement accounts you can consolidate.

Common Eligible Accounts

Each retirement account comes with its tax implications and rules. Here’s a deeper dive into some of the accounts eligible for rollover:

Traditional IRAs:
These are pre-tax accounts where you may have made tax-deductible contributions over the years. Rolling them over can centralize your savings.

Suited for self-employed individuals or small business owners, SEP IRAs are another common rollover candidate. However, be aware of any ongoing SEP contributions that may affect your Solo 401k contributions.

A lesser-known cousin of the SEP and Traditional IRAs – the SIMPLE IRA serves businesses with fewer than 100 employees. You can roll over funds from a SIMPLE IRA to a Solo 401k, but there’s a waiting period. The two-year clock starts from the date of your initial SIMPLE contribution.

403(b) plans:
Common among educators and non-profit workers, 403(b) plans are tax-sheltered annuities. Transferring these funds can often make sense, especially if you’ve transitioned from such roles to self-employment.

Government 457(b) plans:
Tailored for government employees, these plans have unique benefits like separate contribution limits. If you’ve shifted from a governmental role to a self-employed one – rolling these funds can be a strategic move.

Other 401k or profit-sharing plans:
Perhaps you were once part of a company with a 401k plan. If you’ve moved on and are now self-employed, consolidating these old accounts can simplify your finances.

Accounts Generally Not Eligible

Roth IRAs:
These post-tax accounts don’t align with the pre-tax nature of Solo 401k contributions. Therefore, they remain outside the rollover purview.

RMDs (Required Minimum Distributions):
If you’ve reached the age where RMDs are mandated, be aware that these cannot be rolled over into a Solo 401k.

  1. Preparing for the Rollover Process

Successfully rolling over your retirement accounts requires attention to detail and thorough preparation. Before you begin, it’s essential to have a clear understanding of the assets you hold, the associated tax implications, and any potential penalties. Consolidating accounts without surprises demands forethought.

Gather Essential Documents


Ensuring you have all the necessary paperwork is crucial to a seamless transition. Typically, you’ll need:

  • Latest account statements: These offer a snapshot of your assets and any recent transactions or changes.
  • Beneficiary designations: Confirm or update beneficiaries for the accounts you’re rolling over.
  • Rollover distribution forms: Each financial institution has its specific forms. These documents signal your intent to move funds to another retirement vehicle.

Understand Potential Tax Implications

Rollovers, when done correctly, are generally tax-free events. However, mistakes can be costly:

Direct vs. Indirect Rollovers:
Aim for direct rollovers, where funds move directly between financial institutions. Indirect rollovers risk a mandatory 20% withholding, and you’re tasked with redepositing the full amount in 60 days to avoid tax penalties.

60-Day Rule:
As mentioned, for indirect rollovers, you have 60 days to redeposit funds. Miss this window, and it’s deemed a distribution, attracting taxes and potential early withdrawal penalties.

Seek Financial Guidance

Each person’s financial landscape is unique. Consulting with a financial advisor or tax professional can be invaluable. They can offer insights tailored to your specific situation and ensure you make informed decisions.

  1. Initiating the Rollover to Your Solo 401k

Once equipped with the right information and a clear plan, you can confidently initiate the rollover process. Begin with establishing your Solo 401k if you haven’t already. Then, liaise with your current retirement account providers and the trustee of your Solo 401k to ensure a smooth transfer.

Setting Up the Solo 401k

Before moving assets, you’ll need an active Solo 401k account:

  • Choose a provider: There are several financial institutions and brokerages that offer Solo 401k plans. You can get started here.
  • Complete the necessary paperwork: This usually includes an adoption agreement and trustee election form. On, we have all the necessary documents ready to fill out – it takes less than 5 minutes to set up.
  • Determine your contribution types: Decide if you want to make pre-tax, after-tax, or Roth contributions.

Coordinating the Transfer

With your Solo 401k ready, it’s time to coordinate the transfer:

  • Contact your current provider: Notify them of your intent to roll over funds. This is where your rollover distribution forms come into play.
  • Direct vs. Indirect Transfers: As stressed before, opt for direct transfers. This ensures funds move without any hitches and avoids unnecessary tax complications.
  • Track the process: Monitor the fund transfers, ensuring they reflect accurately in your Solo 401k. Keep any transaction records or confirmation statements for future reference.
  1. Assessing the Success of the Rollover

Completing the rollover is an accomplishment, but it’s essential to ensure that the process has been executed correctly. This step involves a detailed review of your new Solo 401k account to guarantee that all assets have been transferred without hitches.

Confirm Asset Transfer

The first step post-rollover is to ascertain that the assets from your previous retirement account are now reflected in the Solo 401k:

  • Check statements: Compare the final statement from your previous account with the first statement from your Solo 401k to ensure the amounts match.
  • Review asset types: Make certain that specific investments, like stocks or bonds, have been transferred accurately if they were part of an in-kind rollover.

Avoid Prohibited Transactions


Your Solo 401k comes with specific rules. Familiarize yourself to avoid transactions that could jeopardize the tax-advantaged status of your account:

  • Stay informed: Familiarize yourself with IRS guidelines on prohibited transactions for Solo 401ks.
  • Consult a professional: Especially when dealing with alternative investments, seek advice to steer clear of inadvertent prohibited transactions.
  1. Optimizing Your Solo 401k Investments

With your funds safely in the Solo 401k, it’s not just about letting them sit. Active management and periodic reviews can help in optimizing your returns and aligning your investments with your retirement goals.


It’s fundamental to spread your investments across various asset classes to balance risk and reward:

  • Asset allocation: Consider a mix of stocks, bonds, real estate, or even precious metals based on your risk tolerance and investment horizon.
  • Rebalance periodically: As market conditions change, the value of your investments may shift. Periodically adjust to maintain your desired asset allocation.

Continuous Contributions

Consistency can be a key driver for long-term growth:

  • Set contribution goals: Determine an annual amount you aim to contribute to your Solo 401k, factoring in both employer and employee limits.
  • Review and adjust: As your business grows and your financial situation changes, reassess your contribution goals to maximize the benefits of the Solo 401k.

Wrap Up

Rolling over various retirement accounts into a Solo 401k is a strategic move for many self-employed professionals and entrepreneurs. By consolidating assets, you streamline your financial landscape and potentially tap into higher contribution limits and investment flexibility offered by the Solo 401k. 

While the process might seem daunting initially, you can ensure a seamless transition with meticulous preparation, understanding of associated tax implications, and possibly the guidance of a financial advisor. 

Remember, the ultimate goal is a well-funded, efficiently managed retirement portfolio that aligns with your future aspirations. With the right approach, your Solo 401k can be a cornerstone in achieving this financial security.

Leave a Reply

Your email address will not be published. Required fields are marked *

Solo 401k

$499 one-time setup
What You Get

Use the chat on the bottom right or call us at (877) 765-6401