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Does Unrelated Business Income Tax (UBIT) or Unrelated Debt Financed Income Tax (UDFI) apply to Solo 401k options trading?
QUESTION:
I recently opened a non-prototype (investment only) brokerage account at Fidelity for my solo 401(k). I’d like to trade options in this account – do I need to worry about UBIT or UDFI taxes?
RESPONSE:
This is a great question. A solo 401(k) plan can allow options trading, but the brokerage account must be opened in the plan’s name and EIN. The specific brokerage will determine if options are permitted.
Let’s assume the brokerage firm allows options within the account for the solo 410k.
UBIT (Unrelated Business Taxable Income) potentially applies if the solo 401(k) invests in a pass-through business generating business income.
However, UBIT does not apply to options trading itself since trading options would not generate business income.
Unrelated Debt-Financing Income (UDFI) may apply when debt is used to finance investments in a retirement account.
While there is a UDFI exception for solo 401k real estate investments, there is no such exception for debt-financed options trades. This means if margin trading, a type of debt, is enabled on the solo 401(k) options trading account the solo 401k may be liable to pay UDFI tax on the income generated.
In summary – while options trading within a solo 401(k) will not be subject to UBIT, if the options are traded via a margin account (or similar debt-financed investment) it could potentially create UDFI taxation.
