Rolling funds into a Solo 401(k) is a straightforward process. You accept the rollover directly and deposit it into your plan's bank account. As both plan administrator and trustee of your own plan, the responsibility for initiating and documenting the transaction rests with you. There is no third-party custodian receiving the funds on your behalf.
Both IRAs and employer plans can roll into a Solo 401(k), but the process differs slightly. In both cases, you request a distribution made payable to your Solo 401(k) plan, but the paperwork on the releasing side may vary.
Contact your current IRA custodian or employer plan administrator and request a direct rollover to your Solo 401(k). Provide them with delivery instructions (see below). They may have their own rollover or distribution form, or they may ask for a Letter of Acceptance from the receiving plan.
Your Self-Directed Plans documents include a Transfer Request and Letter of Acceptance form. This can be used in two ways: as a standalone request if the releasing institution does not have their own form, or alongside their form if they require a Letter of Acceptance from the receiving plan. Because you are the plan administrator, you sign the Letter of Acceptance yourself. As plan administrator, you hold the same authority that a financial institution would in a typical plan-to-plan rollover.
Some releasing institutions are accustomed to dealing with large financial firms and may initially be uncertain how to process a rollover to a self-administered plan. If this comes up, simply clarify that you are the trustee and administrator of the receiving plan, and that you have full authority to accept the rollover. The Transfer Request and Letter of Acceptance documents are designed to address this.
Most administrators issue rollovers by check. A small number will wire funds. If you need to move quickly, ask whether expedited shipping is available for the check.
By check:
| Make Check Payable To | [Your Name], Trustee, [Your Plan Name] |
| Memo | FBO: [Participant Name] |
| Mail To | Your business or personal address |
Example:
| Make Check Payable To | Jane Q. Public, Trustee, Acme Enterprises 401(k) |
| Memo | FBO: Jane Q. Public |
By wire:
| Institution Name | [Your bank name] |
| Account Name | [Your plan name] |
| Routing Number (ABA) | [Your bank routing number] |
| Account Number | [Your plan checking account number] |
| Reference | FBO: [Participant Name] |
Once you receive the check, deposit it directly into your Solo 401(k) plan checking account. Do not endorse it to yourself.
Complete the Rollover Certification form included with your plan documents and retain it with your plan records. This documents the transaction and records the tax character of the incoming funds, pre-tax or Roth, which is essential for accurately tracking participant account balances and provides the basis for Form 5500-EZ reporting if your plan is required to file.
Your Solo 401(k) plan has no obligation to file anything with the IRS to report or confirm the rollover. You will report the non-taxable rollover event on your personal tax return when you file. Your releasing institution will issue a Form 1099-R documenting the distribution as a non-taxable rollover.
Do I need a Letter of Acceptance from Self-Directed Plans to complete the rollover?
No. The Letter of Acceptance is signed by you as the plan administrator of your own Solo 401(k). Your plan documents include a Transfer Request and Letter of Acceptance form for this purpose. Self-Directed Plans does not sign on your behalf. You hold that authority as trustee and administrator of your plan.
Can my plan's bank sign a Letter of Acceptance on my behalf?
No. Your bank has no administrative or custodial role in the plan; it simply serves as the depository for your plan's funds. The Letter of Acceptance is yours to sign, and releasing institutions should direct any questions about plan acceptance to you in that capacity.
What if the releasing institution is unfamiliar with rollovers to self-administered plans?
This occasionally happens. Clarify that you are both the trustee and plan administrator of the receiving plan and that you have full authority to accept the rollover. The Letter of Acceptance included in your plan documents is designed to communicate this clearly to releasing institutions.
Why do I need to track the tax type of incoming funds?
Your Solo 401(k) may hold both pre-tax and Roth funds in separate sub-accounts. Accurately recording which account received the rollover, and the tax character of those funds, ensures your participant account balances are correct and simplifies 5500-EZ reporting if it is required.
Can I roll funds from a Roth IRA into my Solo 401(k)?
No. IRS rules do not permit Roth IRA funds to roll into a Solo 401(k). Roth 401(k) funds from a former employer plan can roll into the Roth sub-account of your Solo 401(k).
This information is provided for educational purposes only and should not be interpreted as tax, legal, or investment advice. Readers are encouraged to consult a qualified professional who can offer guidance based on their personal situation.