Guide
UBIT and UDFI in retirement accounts
When a tax-advantaged account can still owe tax — and how to see it coming.
Retirement accounts are tax-advantaged, but they are not always tax-free. Two rules — UBIT and UDFI — can create a tax bill inside your IRA on certain kinds of income.
Why a tax-exempt account can owe tax
The tax code prevents tax-exempt accounts from gaining an unfair advantage by running an active business or using leverage. When they do, the resulting income can be taxed.
UBIT — unrelated business income tax
If your account earns income from an active trade or business — directly or through a pass-through entity such as an LLC or limited partnership — that income may be unrelated business taxable income and subject to UBIT. Passive income such as interest, dividends, most rents, and capital gains is generally excluded.
UDFI — unrelated debt-financed income
When an account buys an asset with borrowed money — commonly leveraged real estate — the portion of income and gain attributable to the debt can be taxable as UDFI. A non-recourse loan is typically required for an IRA, and the debt-financed portion drives the tax.
How it is reported and paid
UBIT and UDFI are calculated on Form 990-T, filed and paid by the IRA itself using account funds — not on your personal return. A filing is generally required once gross unrelated business income reaches the threshold. Requires tax review
Planning
- Favor passive, unleveraged investments to avoid the issue entirely.
- Model the tax before using leverage in an IRA.
- Some investors use other structures for leveraged deals; weigh cost and complexity.
FAQ
Do rental properties trigger UBIT?
Unleveraged real-estate rents are generally excluded from UBIT — but leverage can create UDFI.
Who files the 990-T?
The IRA files it (the custodian can assist), and the tax is paid from account funds.
Does this apply to a Roth IRA too?
Yes — UBIT and UDFI can apply whether the IRA is traditional or Roth.
Sources include the Internal Revenue Service and U.S. Department of Labor. This guide is general information, not tax or legal advice; confirm specifics with a qualified professional.
Educational only. This page is general information, not individualized investment, legal, or tax advice. Rules depend on your account type, transaction, tax year, and circumstances — consult a qualified professional.