After reviewing the procedure for converting voluntary after-tax solo 401k funds held in a non-prototype brokerage account at Fidelity to a Roth IRA at ETRADE, which you can view by clicking here, follow the below procedure for requesting Fidelity Investments to mail the conversion check to ETRADE for deposit into your Roth IRA.
Using the Fidelity Investments Form to Request a Mega Backdoor Roth solo 401k Conversion Check Mailed to Your ETRADE Roth IRA
To move funds from your voluntary after-tax solo 401k Fidelity brokerage account (non-prototype) to your Roth IRA at ETRADE, complete the Fidelity form titled “One-Time Withdrawal Investment Only Retirement Account.” CLICK HERE to download the form.
How to Complete Fidelity Investments Form
Under Section 1-Plan and Trust Information

Account Number: Enter your solo 401k voluntary after-tax Fidelity brokerage account number.
Name of Trustee: Enter your name.
Name of Employer Plan: Enter the name of your solo 401k plan.
Name of Plan Participant: Enter your name.
Daytime Phone: Enter your phone number.
Under Section 2-Distribution Instructions

Select “only the following amount of cash in your account” and enter the dollar amount of voluntary after-tax solo 401k funds that you wish to convert to your Roth IRA at ETRADE.
Under Section 3-Distribution Method
Select 3c “Direct rollover/conversion of an eligible distribution into an established retirement account NOT held with Fidellity”
For Trustee/Custodian Name, list ETRADE.
Account Number: Enter your ETRADE Roth IRA account number.
For Benefit Of/Attention: Enter your name followed by the words Roth IRA.
For Address: Enter ETRADES mailing address.
Under Section 4-Signature and Date

Print Trustee Name: Enter your name.
Trustee Signature: Sign your legal name.
Date: Enter today’s date.
Submitting the Completed Form to Fidelity Investments
- If form is completed at a Fidelity Investor Center, or if the amount being converted is less than $100,000 the Medallion signature guarantee is not required.
- Mail the completed Form to Fidelity or upload it using the Fidelity message center once you login to your Fidelity brokerage account.

Don’t Forget to Also Complete Our On-Line Conversion Form
After you have Fidelity Investments convert the solo 401k voluntary after-tax funds to the ETRADE Roth IRA, the next step is to log the conversion our website using the following link: https://www.mysolo401k.net/after-tax-solo-401k-to-roth-ira-conversion-form/
We, (not Fidelity) will then issue the Form 1099-R by February of 2027 to report the 2026 conversion.



