What is a self-directed IRA, really?

Most of what gets written about self-directed IRAs is written by someone selling one. So here is the version without the pitch.

There is no such thing as a self-directed IRA

Not in the tax code, anyway. Search the Internal Revenue Code for the phrase and you will not find it. What you will find is a description of an individual retirement account and a short list of things it cannot own: life insurance contracts and collectibles, essentially, plus a set of rules about who the account cannot deal with.

Everything else is permitted by omission. Real estate was never prohibited. It has been allowable since IRAs were created in 1974.

So why can't you buy a duplex in your Fidelity IRA? Because Fidelity will not hold it for you. That is a business decision, not a legal one. Custodians built their operations around securities that settle electronically and price themselves every day. A rental house does neither.

"Self-directed" is industry shorthand for a custodian that said yes to the harder job.

What actually changes

Almost nothing about the tax treatment:

	Regular IRA	Self-directed IRA
Contribution limits	Same	Same
Tax deferral or Roth treatment	Same	Same
Distribution rules and penalties	Same	Same
Required minimum distributions	Same	Same
Annual reporting on Form 5498	Same	Same
What it can hold	Publicly traded securities	Nearly anything not prohibited
Who values it each year	The market	You, with support
How easily it sells	Instantly	Not instantly
Ways to accidentally destroy it	Very few	Several

That last row is the one to sit with. A brokerage IRA is nearly impossible to disqualify by accident. A self-directed IRA holding a rental house has a handful of ways to blow up, and most of them look reasonable in the moment. Paying a plumber out of your personal checking account because the tenant called at 9pm and the custodian takes three days is the single most common one.

What it can hold

Commonly: rental property, raw land, commercial buildings, private notes and mortgages, tax liens, limited partnership and LLC interests, private company stock, precious metals meeting fineness requirements, and crypto.

Cannot hold: life insurance, and collectibles, which includes art, rugs, antiques, gems, stamps, most coins, and alcoholic beverages. Also cannot hold S corporation stock, not because of IRA rules but because an IRA is not an eligible S corp shareholder.

The part that matters more than the menu

An IRA is a separate taxpayer from you. Once you internalize that, most of the rules stop feeling arbitrary.

The account buys the property. The account collects the rent. The account pays the taxes, the insurance, the roof, and the property manager. The account signs. Your name appears on the paperwork only as the person the account is for.

You are not allowed to do favors for it and it is not allowed to do favors for you. No living in it, no storing a boat in the garage, no swinging a hammer on a Saturday, no lending it money, no borrowing from it, no renting it to your daughter. Those are not separate rules to memorize. They are one rule wearing different hats: keep yourself and the account at arm's length.

Break it and the consequence is not a fine. The entire account is treated as distributed to you on January 1 of the year the violation happened, with income tax on the whole balance and a 10% penalty on top if you are under 59 and a half.

The three real costs

Fees. A self-directed custodian charges a setup fee, an annual account or asset fee, and transaction fees for things like wiring funds or recording a deed. Budget several hundred dollars a year, more if you hold multiple properties or the custodian prices by account value. Compare on total annual cost for the specific assets you intend to hold, not on the headline number.

Speed. Every dollar that moves requires a written direction to the custodian, and the custodian's turnaround is measured in days. This is the thing that surprises experienced real estate people most. You cannot win a bidding war on an earnest money deposit that clears next Thursday.

Tax, sometimes. A tax-advantaged account can still owe tax. If the property carries a mortgage, part of the income becomes debt-financed and taxable. If the account runs an active business rather than collecting rent, the same thing happens for a different reason. This is UBIT, it is filed on Form 990-T, and the account pays it out of its own money.

Who this is actually for

It makes sense when you have a specific asset in mind, you understand it better than you understand the public markets, and the account is large enough that several hundred dollars in annual fees is a rounding error rather than a drag.

It makes very little sense as a general upgrade. If the plan is "open one and then figure out what to buy," you have added cost, illiquidity, and a set of new ways to fail without adding anything.

The order of operations

1. Decide on the asset first. The account structure follows the asset, never the reverse.
2. Pick a custodian that has held that asset type many times. Ask them directly how many.
3. Open the account, then fund it, then wait. Funding is the slow part and it is always slower than the estimate.
4. Get your CPA in the room before the first offer, not after the first tax notice.

The mechanics are learnable in an afternoon. The discipline of treating the account as a stranger is the actual skill, and it takes longer.