Prohibited Transactions & Disqualified Persons

If there's one topic in the Self-Directed IRA world that deserves a giant flashing warning sign, it's this one. The rules around "prohibited transactions" and "disqualified persons" are strict, and breaking them, even accidentally, can have serious consequences.

The good news? Once you understand the core idea, these rules are actually pretty logical. Let's break it down simply.

The big idea: your IRA is its own "person"

Here's the mental shift that makes all of this click: your IRA is a separate legal entity from you.

Think of your Self-Directed IRA as a trust fund being managed for a stranger, a stranger who happens to share your name, but who the IRS treats as completely separate from you, today.

That "stranger" (your future retired self) isn't allowed to do business with certain people right now, including you. The IRS calls those people "disqualified persons," and any deal between your IRA and a disqualified person is a "prohibited transaction."

Who counts as a "disqualified person"?

This is the list of people (and entities) your IRA generally can't do business with:

• You: the IRA owner
• Your spouse
• Your parents, grandparents, and other ancestors
• Your children, grandchildren, and their spouses (descendants)
• Anyone providing services to the IRA (like your custodian, accountant, etc.)
• Businesses where a disqualified person owns 50% or more

The surprising part: siblings are NOT automatically disqualified.

Your brothers, sisters, aunts, uncles, cousins, and friends are generally not considered disqualified persons under these rules. That said, even when something is technically allowed, it's worth being extra careful and getting professional guidance, these areas get scrutinized closely.

What counts as a "prohibited transaction"?

In plain English, your IRA generally can't:

1. 1Buy something from, or sell something to, a disqualified person. Example: You can't have your IRA buy a rental property from yourself, or sell IRA-owned land to your son.
2. 2Lend money to, or borrow money from, a disqualified person. Example: Your IRA can't loan money to your spouse's business, and you can't personally loan money to your own IRA either.
3. 3Pay a disqualified person for goods or services. Example: If your IRA owns a rental property, you (the owner) generally can't be paid to manage it, fix the toilet, or mow the lawn, even if you'd do a great job and charge a fair rate.
4. 4Let a disqualified person use IRA assets personally. Example: If your IRA owns a vacation property, you can't stay there, even for one night, even if you pay "rent."
5. 5Use the IRA for your own benefit in a way that isn't part of the IRA's investment purpose. Example: Using IRA funds to benefit your personal business, even indirectly.

A simple way to think about it

Before doing anything with your SDIRA, ask:

"Would this transaction involve me, my spouse, my parents/grandparents, my kids/grandkids (or their spouses), or a business one of us controls, in any way?"

If the answer is yes, stop and get professional guidance before moving forward. It doesn't automatically mean something is prohibited, but it's exactly the kind of situation where the rules get complicated fast.

Why these rules matter so much

Unlike a lot of tax rules where you might just owe a penalty, prohibited transactions can be much more severe:

• If you (the IRA owner) engage in a prohibited transaction, the IRS can treat your entire IRA as distributed as of January 1st of that year, meaning the whole account becomes taxable (and potentially subject to early withdrawal penalties), not just the portion involved in the transaction.
• If another disqualified person is involved, they may face excise taxes on the transaction.

This is why people describe these rules as having the potential to "blow up" an entire account. A single misstep involving the wrong person or asset can undo years of tax-advantaged growth. Our guide on the consequences of prohibited transactions walks through exactly what the IRS does, the excise tax tiers, and four real-world scenarios that have caught otherwise careful investors.

The bottom line

The disqualified person and prohibited transaction rules exist to keep your retirement account truly separate from your personal financial life, no shortcuts, no "just this once," and no using IRA money to benefit yourself or close family members today.

If you're ever unsure whether something crosses the line, that's exactly the moment to pause and talk to a professional (a CPA, ERISA attorney, or your SDIRA custodian's compliance team) before the transaction happens, not after.