Finance

Self-Directed IRA UBIT/UDFI Calculator

Estimate the unrelated business income tax owed on leveraged real estate held inside an IRA.


Self-Directed IRA UBIT/UDFI Calculator

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Using a non-recourse loan to buy real estate inside an IRA creates Unrelated Debt-Financed Income, taxed under UBIT even though an IRA is normally a tax-advantaged account.

How it works

The loan balance divided by the property’s value gives the debt-financed percentage. That percentage applied to net income gives the taxable UDFI, which is then taxed at the applicable trust tax rate.

What this does not include

This does not include the $1,000 UBIT filing threshold, the small standard deduction available against UBTI, or how the debt-financed percentage should technically be averaged over the 12 months before a sale for capital gains purposes.

How to use this calculator

  1. Enter property value, loan balance, net income, and the applicable tax rate.

Frequently asked questions

Does UBIT apply to an all-cash IRA real estate purchase?

No — with no leverage, there’s no debt-financed income, so none of the rental income is subject to UBIT.

Does UBIT reduce the IRA’s overall tax advantage entirely?

No — only the debt-financed portion of income is taxed; the portion attributable to the IRA’s own cash investment remains tax-deferred or tax-free as usual.

Who pays the UBIT — the IRA or the account owner?

The IRA itself files Form 990-T and pays any UBIT owed directly from IRA funds, not the account owner personally.

Important: This is general information, not financial advice. Figures are estimates, and your lender or provider decides the real numbers. Check with a qualified adviser before acting on them.

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Written by

M. Whitfield

Personal finance writer

M. Whitfield writes the personal finance calculators, covering loans, mortgages, savings, tax and investment maths. The focus is on showing exactly which number goes into a formula and which assumptions a result depends on, so readers can tell when a figure applies to their situation and when it does not. Every finance page states what it does not account for as plainly as what it does.

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Calculator reviewer — finance

A. Whitfield-Reyes reviews the finance calculators, checking compounding conventions, rate-period alignment, and whether each page is explicit about the costs and tax treatment it leaves out. Financial results are easy to state with false precision, so review focuses on whether the page makes its assumptions visible to a reader who is not looking for them.

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