My Solo 401k Financial clients also have the option to convert their voluntary after-tax solo 401k funds held in a non-prototype brokerage account at Fidelity Investments to their ETRADE Roth IRA.
- How to open a mega backdoor Roth solo 401k with My Solo 401k Financial-CLICK HERE.
- How open the solo 401k non-prototype brokerage accounts at Fidelity Investments- CLICK HERE.
- How to convert the voluntary after-tax solo 401k funds from Fidelity Investments to the Roth IRA at ETRADE- CLICK HERE.
- How to report the non-taxable conversion of voluntary after-tax solo 401k funds to the ETRAE Roth IRA- CLICK HERE.
The Form Fidelity Will Need to Mail the check to ETRADE for Deposit to the Roth IRA at ETRADE
Click here to view the Form Fidelity Investments will need.
COMPLIANCE NOTE:
Conversions are reported in the year that the funds are actually moved over to the Roth account.
The solo 401k contribution rules are different from the conversion rules. Contributions can be made by your business tax return due date plus any timely filed extension for the prior year.
In sum, the voluntary after-tax solo 401k conversion will be nontaxable regardless if you convert the after-tax contributions that were made in 2025 or in 2026 for 2025.
