Who took part in the prohibited transaction? That changes the tax consequence
"It depends on who took part. If the owner or a beneficiary did, the account stops being an IRA as of the first day of that year; if another disqualified person did, it survives and a 15% excise tax applies to the amount involved, 100% if uncorrected."
The prohibition in section 4975 is not a list of banned investments, which is what most summaries of it imply. It is a list of banned relationships, and the identity of the person on the other side decides both whether the rule bites and which of two very different consequences follows.
The same rental property or the same private loan can be unobjectionable in one self-directed IRA and fatal to another, and the difference is the counterparty. Internal Revenue Code section 4975 does not list permitted holdings. It forbids four kinds of transaction and defines a class of people the account may not deal with, so the first fact to settle is who was on the other side.
Stage one: the four categories, in the IRS's own words
Section 4975 forbids transactions, not holdings. The Internal Revenue Service sets out four categories:
A disqualified person's transfer of plan income or assets to, or use of them by or for his or her benefit; A fiduciary's act by which he or she deals with plan income or assets in his or her own interest; A fiduciary's receipt of consideration for his or her own account in a transaction that involves plan income or assets; and transactions between the plan and a disqualified person (selling, exchanging, or leasing property; lending money or extending credit; furnishing goods, services or facilities).
Three turn on a role — a disqualified person, a fiduciary. The fourth turns on a relationship, and its parenthesis lists conduct, not asset classes.
Stage two: who is a disqualified person?
Only part of that question is answered on a retrievable official page. For an IRA, the Internal Revenue Service gives this:
Disqualified persons include the IRA owner's fiduciary and members of his or her family (spouse, ancestor, lineal descendant, and any spouse of a lineal descendant).
The word carrying the weight is "include". The sentence names a fiduciary and four family relationships, then stops, so it is a floor rather than a boundary. A relationship absent from it is not therefore permitted.
Stage three: the consequence depends on who took part
Two outcomes, and the difference between them is the whole reason to ask the question first.
If the account owner or a beneficiary took part, the account stops being an IRA. In the Internal Revenue Service's words:
Generally, if an IRA owner or his or her beneficiaries engage in a prohibited transaction in connection with an IRA account at any time during the year, the account stops being an IRA as of the first day of that year... the account is treated as distributing all its assets to the IRA owner at their fair market values on the first day of the year.
If a disqualified person other than the owner or beneficiary took part, the account survives and an excise tax applies instead: an initial tax of 15% of the amount involved, and a further 100% if the transaction is not corrected within the correction period. The account is not deemed distributed in that case, which is why the identity of the actor has to be settled before anything else.
The deemed distribution, where it applies, is dated to the first day of the year rather than to the date of the transaction: a transaction made in November is treated as a distribution of the whole account made the previous January, at January's values, in a tax year already spent. Where the owner is under age 59½ at that date and no exception applies, the Internal Revenue Service records a 10% additional tax on early distributions from traditional and Roth IRAs.
Actor, then transaction, then consequence
This list restates rules quoted from the Internal Revenue Service and is not exhaustive. A transaction can be prohibited for reasons that do not appear on it.
Source: Retirement topics — prohibited transactions, and Publication 590-A, Internal Revenue Service, as listed in Sources.
What this page cannot tell you
The ledger behind this page could not confirm the full statutory list of disqualified persons under section 4975(e)(2), nor the section 408(m) list of collectibles and its exceptions. Neither is reproduced here from memory, and a transaction can be prohibited for reasons this page does not cover. The publication named for both is Publication 590-A, Contributions to Individual Retirement Arrangements (IRAs), at https://www.irs.gov/publications/p590a.
Does a self-directed account widen the list of people you may deal with?
No. It widens the asset menu and leaves the counterparty rules where they were. The account is the same type under the same annual limits, held with a custodian whose documents permit a wider range of holdings, and section 4975 applies to it on the same terms as to an IRA holding only listed shares. The extra freedom is in what is bought, not in who it is bought from. Which account can be opened in the first place is worked through in the 2026 limits and what changed.
What the assets bought in these accounts do to the tax position
An operating business held inside an IRA, or borrowed money used inside it, can make the account itself a taxpayer with a return of its own to file. That is a separate mechanism with a separate consequence, set out in when a tax-exempt IRA ends up filing a tax return.
The contribution limit does not change either: a self-directed IRA takes the same $7,500 for the 2026 tax year as any other IRA. The administrator's annual charge is a separate cost from anything section 4975 imposes; what a disclosed annual percentage does to a balance is in what it costs, and an administrator's charge can be run through the fee calculator.
So what do you do
If the counterparty is the account owner's spouse, ancestor, lineal descendant or the spouse of a lineal descendant, the quoted definition places them inside the disqualified-person class and the fourth category is engaged on its face. If the person who would take part is the owner or a beneficiary, the consequence in play is the deemed distribution of the whole account, not an excise tax on the amount involved. Otherwise, do not decide yet: the list under section 4975(e)(2) and the section 408(m) collectibles list are not confirmed in this site's ledger, and nothing here stands in for reading them.
Whichever applies, the administrator's own account agreement and prohibited-transaction policy govern how the account is operated: Read an administrator's own account documents. Those documents describe how the account is run; they are not a legal opinion on a particular transaction.
What to check next
Three documents, in this order. The account agreement and prohibited-transaction policy from the administrator. Publication 590-A for the disqualified-person and collectibles provisions this page does not reproduce. Then, before any transaction with a person who might be inside the class, written advice from someone who can see the facts.
Frequently asked questions
Can an IRA buy a property and rent it to the owner's daughter?
No. The quoted definition names a lineal descendant among the family members who are disqualified persons. The fourth category covers transactions between the plan and a disqualified person, and names leasing property among the conduct it reaches; the first covers a disqualified person's use of plan assets by or for his or her benefit.
What does "the account stops being an IRA" actually mean?
The account is treated as distributing all its assets to the owner at their fair market values on the first day of the year, in the Internal Revenue Service's own words — not the transaction unwound, not the asset removed. That consequence follows a prohibited transaction in which the owner or a beneficiary took part.
Does every prohibited transaction destroy the account?
No. Where the person who took part is a disqualified person other than the owner or beneficiary, Publication 590-A applies an initial excise tax of 15% of the amount involved, and an additional 100% if it is not corrected, rather than treating the account as distributed.
Sources
- The four categories of prohibited transaction, quoted verbatim; the definition of a disqualified person for an IRA, quoted verbatim; and the consequence that the account stops being an IRA as of the first day of that year where the owner or a beneficiary took part: Retirement topics — prohibited transactions, Internal Revenue Service. Checked 20 August 2026.
- The excise tax where a disqualified person other than the owner or beneficiary took part — an initial 15% of the amount involved and an additional 100% if the transaction is not corrected within the correction period: Publication 590-A, Internal Revenue Service. Checked 6 September 2026.
- The 10% additional tax on early distributions from traditional and Roth IRAs before age 59½, unless an exception applies: Topic no. 557, Internal Revenue Service. Checked 20 August 2026.
- The IRA contribution limit of $7,500 for the 2026 tax year, referred to in the section on self-directed accounts: 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500, Internal Revenue Service. Checked 20 August 2026.
- Recorded as not confirmed, and therefore not stated on this page: the full statutory list of disqualified-person categories under section 4975(e)(2), and the section 408(m) list of prohibited collectible categories with its coin and bullion exceptions, both checked against Publication 590-A, Internal Revenue Service. Checked 20 August 2026.
Before the money moves at all
The account has to be funded before any of this applies, and the funding route has rules of its own — a clock, a counter and a withholding rate.
Check the rollover rulesWritten by Kaz, an independent publisher.
Sources: official tax authority and regulator publications only. Figures last verified 6 September 2026. How they get here is on the editorial method page.
Corrections: the contact form.