Please check out this good question from our one of our daily My Community Q&A Webinars. Subscribe to our YouTube Channel to get notifications of our Daily FAQs.
Custodian of Solo 401k vs Custodian of IRA: Who is the Custodian of my retirement account?
When it comes to self-directed retirement accounts like Solo 401k plans and IRAs, understanding the role of the custodian is important. The custodian is responsible for holding and safeguarding the assets in the account. However, there are some key differences between who acts as custodian for a Solo 401k compared to an IRA.
For a Solo 401k, the custodian depends on the type of assets:
- For liquid funds like cash held in a bank account, the custodian is the bank where the Solo 401k bank account is opened.
- For brokerage accounts holding stocks, bonds, mutual funds, etc., the custodian is the brokerage firm like Fidelity or Schwab where the Solo 401k brokerage account is held.
- For alternative investments like real estate, the Solo 401k owner themselves acts as the custodian in their role as trustee of the plan. They are responsible for safekeeping documents like property deeds.
- Similarly, for investments like promissory notes, the Solo 401k owner as trustee holds onto the notes as the custodian.
In contrast, an IRA always requires a third-party custodian, which is typically a bank or financial institution. The IRA custodian holds the assets, executes transactions, and handles the administration and IRS reporting for the account.
Here is a comparison chart showing the differences:
| Investment Type | Custodian for Solo 401k | Custodian for IRA |
|---|---|---|
| Cash (Bank Account) | Bank where account is opened | IRA custodian (bank or financial institution) |
| Stocks, Bonds, Mutual Funds (Brokerage Account) | Brokerage where account is opened | IRA custodian (bank or financial institution) |
| Real Estate | Solo 401k owner (as trustee) | Self-directed IRA custodian (bank or financial institution) |
| Promissory Notes | Solo 401k owner (as trustee) | Self-directed IRA custodian (bank or financial institution) |
As you can see, a key benefit of a Solo 401k is the ability of the owner to serve as their own custodian for certain investments, providing more control. With an IRA, a third-party custodian is always required.
Learn More:














