How can I do a Solo 401k Mega Backdoor Roth Conversion?

A Mega Backdoor Roth conversion consists of many moving parts and can seem confusing if you’re attempting to do one for the first time. At Carry, we simplified it so that you can complete it in just a few clicks.

What is a Mega Backdoor Roth and is it right for you? Read this before getting started.

Then click 'Change election type' if you have not previously elected for Mega Backdoor Roth or click 'Update election amount' if you just need to update the contribution elections for the different contribution types:

If you are changing election type you will be brought to this screen:

Here if you have selected an option that includes Mega Backdoor Roth, you will be asked if you want to do a Mega Backdoor Roth conversion as shown below:

Then you'll need to select the destination account for your Mega Backdoor Roth funds:

You'll then input your contribution election amounts and hit 'Continue'

On the next page you can hit 'Finish' and your contribution elections will be saved.

Go into your Solo 401k account and click "Deposit"

Choose Solo 401k Mega Backdoor Roth as the destination account and select the year:

Mega Backdoor Roth conversions must be reported to the IRS using the 1099-R form. Learn more about the 1099-R here.