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Last updated: July 18, 2026 · By White Metal Resources Editorial
Quick answer: Rhodium and iridium are not IRA-eligible at any purity. The statute that controls what a retirement account can hold, IRC 408(m)(3)(B), names only four metals: gold, silver, platinum, and palladium. Rhodium and iridium sit outside that list, so a self-directed IRA cannot buy them.
Buying either inside an IRA counts as acquiring a collectible under section 408(m). The IRS treats that acquisition as a deemed distribution of the purchase price, taxed as ordinary income, plus the 10 percent additional tax if you are under 59.5. No refiner mark, coin design, or storage arrangement changes the answer.
Short on time? The essentials
- The tax code names four bullion metals that qualify for an IRA: gold, silver, platinum, and palladium. Rhodium and iridium are not on that list.
- The IRA eligibility test in IRC 408(m)(3)(B) is a named list, not a fineness threshold. Purity of 99.99 or 99.999 changes nothing for a metal that is not enumerated.
- Acquisition of a non-listed metal inside an IRA is a deemed distribution of the full cost. It is taxable, and it triggers the 10 percent additional tax before age 59.5.
- Rhodium is a platinum-group metal used mainly in three-way catalytic converters for gasoline vehicles, plus some jewelry plating and electrical contacts.
- Iridium is used in spark plug tips, high-temperature crucibles, industrial catalysts, and some medical devices. Both are traded in physical form, but neither belongs in an IRA.
- A rhodium bar sold as an "investment" outside an IRA can still be legal to own. Wrapping it inside a self-directed IRA is what the statute blocks.
- Sales pitches that promise to "diversify your gold IRA with rhodium" fail on the first line of 408(m)(3)(B). Walk away when you hear one.
- The four eligible metals sit at set minimums: gold at 99.5 percent, silver at 99.9 percent, and both platinum and palladium at 99.95 percent. Those minimums come from commodity-market delivery standards.
- A compliant precious-metals IRA still gives you exposure to platinum-group metals through platinum and palladium bullion at 99.95 percent fineness.
- Any dealer or promoter claiming rhodium or iridium is IRA-approved is either wrong or hoping you will not check the statute. The Cornell Legal Information Institute posts the current text for free.
This page answers a question that comes up whenever a saver hears about the six platinum-group metals: can any of them go inside an IRA? Two of the six qualify, four do not. Below we walk through the statute, the deemed-distribution rule, the industrial context for rhodium and iridium, and how to verify eligibility yourself before you sign anything.
What the statute actually says
The controlling text is short. IRC section 408(m)(3)(B) exempts from the collectibles ban "any gold, silver, platinum, or palladium bullion of a fineness equal to or exceeding the minimum fineness that a contract market" requires for delivery, held by an approved trustee (source: 26 U.S.C. section 408(m)(3)).
Four metals appear in that sentence. Rhodium is absent. Iridium is absent. So are ruthenium and osmium, the other two members of the platinum-group family. The IRS Issue Snapshot on collectibles in IRAs confirms the same list and the same rule (source: IRS collectibles snapshot).
A separate carve-out in 408(m)(3)(A) admits certain United States coins listed in 31 U.S.C. section 5112. That is how the American Gold Eagle qualifies at a lower purity, and how the Silver and Platinum Eagles clear the test. The United States Mint does not strike rhodium or iridium coins under 31 U.S.C. section 5112, so that route does not save either metal.
Why the eligibility test is a named list, not a purity threshold
Newcomers often assume the rule is a fineness minimum, so a very pure rhodium bar should qualify. It does not. The statute names the eligible metals first and then applies a fineness test to that named group. A metal outside the group never reaches the fineness gate.
Think of it as two questions asked in order. First, is the metal one of gold, silver, platinum, or palladium? If no, the test ends there and the metal is out. If yes, is it fine enough to satisfy the commodity-market delivery standard the statute points to? Only a yes at both gates puts the metal inside the IRA rules.
Congress could have written the list as "any bullion above 99.9 percent fine." It did not. The choice to enumerate specific metals is why refiner purity marks of 99.99 or 99.999 on a rhodium bar carry no weight for retirement-account purposes.
Which metals qualify, and where rhodium and iridium fall
The table below sets the four eligible bullion metals next to the four platinum-group metals that never qualify. Every "no" row fails at the first gate, the named-metal test, regardless of purity or refiner.
| Metal | IRA-eligible? | Statutory basis and minimum fineness |
|---|---|---|
| Gold | Yes (Eligible) | Named in 408(m)(3)(B) at .995 fineness. American Gold Eagle clears via the 31 U.S.C. 5112 coin carve-out. |
| Silver | Yes (Eligible) | Named in 408(m)(3)(B) at .999 fineness. |
| Platinum | Yes (Eligible) | Named in 408(m)(3)(B) at .9995 fineness. Platinum American Eagle clears via the coin carve-out. |
| Palladium | Yes (Eligible) | Named in 408(m)(3)(B) at .9995 fineness. Palladium American Eagle clears via the coin carve-out. |
| Rhodium | No (Not eligible) | Not enumerated in 408(m)(3)(B). No United States coin under 31 U.S.C. 5112. |
| Iridium | No (Not eligible) | Not enumerated in 408(m)(3)(B). No United States coin under 31 U.S.C. 5112. |
| Ruthenium | No (Not eligible) | Not enumerated in 408(m)(3)(B). Same reasoning as rhodium and iridium. |
| Osmium | No (Not eligible) | Not enumerated in 408(m)(3)(B). Same reasoning as rhodium and iridium. |
Sources: 26 U.S.C. section 408(m)(3); IRS Issue Snapshot on collectibles in IRAs; LBMA Good Delivery for the commodity-market fineness reference. Checked June 2026.
What happens if a self-directed IRA buys rhodium or iridium anyway
The consequence is not a paperwork warning. It is a tax event. Under IRC section 408(m)(1), acquiring a collectible with IRA funds is treated as a deemed distribution equal to the cost of that collectible. The IRS Issue Snapshot spells the mechanic out in plain terms (source: IRS collectibles snapshot).
The deemed distribution is taxable in the year the purchase happens. Ordinary income tax applies to the full amount. If you are under age 59.5, the 10 percent additional tax under IRC section 72(t) stacks on top of the income tax, subject to the exceptions listed in Publication 590-B (source: IRS Publication 590-B).
Two other consequences follow. The custodian may resign the account, because holding an ineligible asset creates a prohibited-transaction exposure under IRC section 4975(c). And the metal itself has to leave the retirement wrapper, either back to you personally or through a sale, at your cost.
The industrial context for rhodium and iridium
Both metals are traded in physical form outside retirement accounts, which is why the question keeps surfacing. Both are also platinum-group metals, which lumps them mentally with platinum and palladium even though the statute separates them.
Rhodium's primary use is emissions control. It sits in the three-way catalytic converters fitted to gasoline-engine vehicles, where it helps reduce oxides of nitrogen. Smaller shares go to jewelry plating and to electrical contacts. That heavy automotive concentration is a documented industry structure, not a forecast about future prices.
Iridium's main uses are technical. It appears in spark plug tips, in crucibles that grow single-crystal semiconductors, in some industrial catalysts, and in a handful of medical devices. Both metals are annually surveyed by the United States Geological Survey inside its platinum-group metals commodity summary (source: USGS Mineral Commodity Summaries, Platinum-Group Metals).
Physical rhodium and iridium products exist, and reputable dealers sell them. That does not make them retirement-account assets. The statutory gate is what it is, and refiners cannot open it by adding a fineness mark.
How to check whether a metal qualifies for an IRA
Sales pitches move fast. A short verification routine puts you on solid ground before you commit money. Follow the steps below and you can settle any eligibility claim in a few minutes.
- Open the statute. Read 26 U.S.C. section 408(m)(3) on the Cornell Legal Information Institute page. Confirm the exact metals named in (m)(3)(B) and the coin carve-out in (m)(3)(A).
- Check the IRS Issue Snapshot. Compare the pitch to the IRS collectibles snapshot for individually directed qualified plan accounts. The IRS restates the same four-metal list and the physical-possession requirement.
- Match the metal against the list. If it is gold, silver, platinum, or palladium, move to the fineness check. If it is anything else, the answer is no. Rhodium, iridium, ruthenium, and osmium all fail here.
- Confirm the fineness minimum. Ask the dealer for a purity mark and a refiner accreditation. IRA gold needs .995 or better, silver .999, and both platinum and palladium .9995.
- Confirm the trustee and the storage. The statute requires an IRS-approved trustee to keep physical possession at an approved depository. If the dealer suggests home storage or a checkbook wrapper, both signals are wrong.
If the metal fails any single step, it does not belong in an IRA. That is true for rhodium and iridium every time, and it is true for coins or bars that clear the metal test but fall short on fineness or storage.
Where the confusion tends to come from
Three patterns push savers toward the wrong answer. Each one has a simple counter.
The first is the platinum-group label. Retirement-facing marketing groups platinum and palladium under "PGMs" and sometimes implies the whole family is fair game. It is not. The statute names two members of the family and leaves four out.
The second is the "any pure enough bar" assumption. Purity marks of 99.99 or 99.999 on a rhodium bar look like they satisfy an IRS fineness rule. They do not, because the statute names the eligible metals before it names the fineness test.
The third is confusion between physical ownership and retirement-account ownership. A rhodium bar can be a legal purchase for a private collector or an industrial user. That does not translate to a self-directed IRA, where a separate federal law controls what the account can hold.
Holding rhodium or iridium outside a retirement account
Some savers still want physical exposure to these metals after they see the IRA answer. That is a taxable-account decision, not a retirement-plan decision, and the tradeoffs shift.
Outside an IRA there is no 408(m) gate. A private buyer can hold a rhodium bar or an iridium bar the same way they hold a gold bar, subject to state sales-tax rules and to standard capital-gains treatment at sale. Long-term gains on physical precious metals held over a year are generally taxed at up to 28 percent under the collectibles rate, higher than the long-term rate on stocks (source: IRS Publication 550).
Practical friction is another matter. Bid-ask spreads on physical rhodium and iridium tend to run wide relative to gold or silver, because the retail market is thinner. Reselling can take longer and can cost more per unit. Those are structural realities, not price forecasts. A thoughtful investor treats a small industrial-metal position as a specialty holding, not as a core retirement plan.
Confirm which retirement account can move to a compliant precious-metals IRA
If rhodium and iridium are out, most savers who wanted white-metals exposure end up looking at silver, platinum, or palladium instead. The mechanic to fund a compliant precious-metals IRA is a rollover from an existing retirement account. The calculator below runs the eligibility check for common source accounts.
Can you roll your account into a precious metals IRA? Eligibility checker
Most retirement money can move into a precious metals IRA once it is an eligible rollover distribution. Pick your account and situation for a general answer. Always confirm the specifics with your plan administrator or custodian.
General guidance only, not tax or financial advice. Eligibility depends on your specific plan document and IRS rules; confirm with your plan administrator and a tax advisor. A direct trustee-to-trustee transfer avoids the 60-day rule and 20% withholding.
Picture a saver who wants a 5 percent slice of a $200,000 traditional IRA in platinum-group exposure. They read a promotion suggesting rhodium bars because the promoter calls rhodium "the highest-priced PGM." The saver runs the verification routine above.
- Step 1 opens 408(m)(3)(B) and finds gold, silver, platinum, palladium. Rhodium is absent.
- Step 2 confirms the IRS Issue Snapshot lists the same four metals. Rhodium is again absent.
- Step 3 stops the process. Rhodium fails the named-metal gate, so no purity mark rescues it.
- The saver redirects the same 5 percent, or $10,000, into a platinum American Eagle position or into a palladium Maple Leaf position. Both clear 408(m)(3)(B) and stay inside the wrapper.
These figures illustrate the eligibility mechanic. They are not quotes from any dealer, and they are not advice on how much of a retirement account to allocate to metals. Consult a licensed advisor for your specific situation.
When this line of thinking is a bad idea
A balanced page has to name when trying to sidestep the rule works against you. For several savers, chasing a rhodium or iridium IRA is exactly the wrong move, and saying so plainly is part of an honest guide.
It is usually a bad idea in these situations:
- The pitch promises "IRS-approved rhodium" or "IRA-eligible iridium." Neither exists under current federal law. Any such phrasing is either sloppy marketing or a live compliance risk that lands on your tax return.
- A "checkbook IRA" or "home-storage IRA" is proposed as the workaround. The statute requires physical possession by an IRS-approved trustee. The United States Tax Court applied that rule against the taxpayers in McNulty v. Commissioner, 157 T.C. 10 (2021).
- The saver is under 59.5 and cannot afford the stacked tax. A deemed distribution equal to the cost is taxable at ordinary rates, plus the 10 percent additional tax before 59.5. That combined bite erases most of the reason people use a retirement wrapper.
- The account already leans heavily on one metal. Layering another industrial platinum-group metal on top does not add diversification; it stacks similar demand drivers. Bond and equity exposure exists for a reason.
- The promoter avoids answering a direct question about IRC 408(m)(3)(B). A firm that will not read the statute with you on the phone is telling you which side of the law they are comfortable working near.
If one of these describes the situation in front of you, slowing down is the sensible call. There is no CTA in this section on purpose.
Rhodium and iridium IRA questions, answered
Are rhodium and iridium IRA-eligible?
No. Section 408(m)(3)(B) of the tax code names only four bullion metals as exempt from the collectibles rule: gold, silver, platinum, and palladium. Rhodium and iridium are not on the list. They cannot be held inside an IRA at any purity, from any refiner, in any form.
Does high purity rescue a rhodium bar?
No. The statutory test names eligible metals first and then applies a fineness minimum to the named group. A rhodium bar marked 99.99 or 99.999 fine still fails at the first gate, because rhodium is not one of the four enumerated metals. The purity number does not carry weight for retirement-account eligibility.
Why is the American Silver Eagle allowed at a lower carve-out but not a rhodium coin?
The American Silver Eagle qualifies through IRC 408(m)(3)(A), which admits certain United States coins issued under 31 U.S.C. section 5112. The United States Mint strikes gold, silver, platinum, and palladium American Eagles under that statute. It does not strike rhodium or iridium coins, so the coin carve-out cannot help either metal.
What happens if I bought rhodium in my self-directed IRA by mistake?
The IRS treats the purchase as a deemed distribution equal to the cost. That amount is taxable at ordinary rates in the year of the purchase, and the 10 percent additional tax under section 72(t) applies if you were under 59.5. Speak with a qualified tax advisor immediately and consider filing an amended return if past years are affected.
Can I hold rhodium or iridium ETFs inside an IRA?
That is a different question from physical bullion, and it turns on securities law rather than the collectibles rule. A publicly traded exchange-traded product that holds physical PGMs may or may not be structured as an IRA-eligible security. Ask the ETF sponsor and your custodian for a written answer specific to that product before you buy.
Which platinum-group metals can go inside an IRA?
Two of the six platinum-group metals qualify: platinum and palladium. Both must meet a .9995 fineness minimum unless they are American Eagles under the United States coin carve-out. Rhodium, iridium, ruthenium, and osmium are not eligible under section 408(m)(3)(B).
Can a self-directed IRA hold a physical rhodium bar in an approved depository?
No. The physical-possession requirement in 408(m)(3) does not save an ineligible metal. Approved storage is a condition on eligible metals, not a route for unlisted ones. A rhodium bar stored at Delaware Depository or Brink's still fails the named-metal test at the front of the statute.
Where can I read the statute myself?
The Cornell Legal Information Institute publishes the current text of 26 U.S.C. section 408 at no cost. The IRS Issue Snapshot on collectibles in individually directed qualified plan accounts summarises the same rule with a direct quotation of the four-metal list. Both are linked in the sources at the bottom of this page.
Sources
- Cornell Legal Information Institute, 26 U.S.C. section 408 (collectibles rule in subsection (m)). Checked June 2026.
- IRS, Investments in Collectibles in Individually Directed Qualified Plan Accounts (Issue Snapshot). Checked June 2026.
- IRS, Publication 590-B, Distributions from Individual Retirement Arrangements. Checked June 2026.
- IRS, Publication 550, Investment Income and Expenses (collectibles rate on precious metals). Checked June 2026.
- United States Geological Survey, Mineral Commodity Summaries, Platinum-Group Metals. Checked June 2026.
- London Bullion Market Association, Good Delivery (commodity-market fineness reference). Checked June 2026.
