IRA approved silver is a narrow category defined by two doors in one paragraph of the tax code, and almost every product a phone-room pushes at a retiree comes through neither. Below: the purity line and where the number actually comes from, the four sovereign coins that clear it, how bar accreditation works, and the three categories of white metal that will cost you money whether or not your custodian catches them.
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It means the metal has been let through an exception rather than granted a permission. The default position of the tax code is that a retirement account may not hold collectibles at all, and metal is a collectible until something rescues it. Internal Revenue Code 408(m)(3) is the rescue, and it operates two separate doors that most guides blur into one.
The first is the named-coin door. The statute excludes from the collectibles definition "any coin which is ... a silver coin described in section 5112(e) of title 31, United States Code." That cross-reference points at one product: the coin Congress specified as 40.6 millimetres across, weighing 31.103 grams, and containing .999 fine silver. In plain terms, the American Silver Eagle. There is a companion clause for "a coin issued under the laws of any State," which is real but almost never relevant to a retail order.
The second is the bullion door, and this is where the rest of the market lives. It admits "any gold, silver, platinum, or palladium bullion of a fineness equal to or exceeding the minimum fineness that a contract market ... requires for metals which may be delivered in satisfaction of a regulated futures contract." Notice what that sentence does not contain: a number. Congress delegated the purity test to a commodities exchange rather than writing a threshold it would have to keep amending.
Both doors carry the same condition at the end of the paragraph. The exception applies only if the metal "is in the physical possession of a trustee." That single phrase is why a home-safe arrangement fails even when the coin inside the safe is impeccable, and why every legitimate physical silver IRA ends with a depository receipt rather than a delivery to your door.
Ask ten dealers what purity silver needs and ten will say .999. They are right about the number and usually wrong about where it comes from, which matters more than it sounds. The contract market that sets it for silver is COMEX, and its silver futures rules require metal delivered against the contract to assay to a minimum of 999 fineness and to carry a brand the Exchange has approved. The rulebook goes further than purity: each eligible bar must have its weight, fineness, bar number and brand mark clearly incised, with month and year of production added for bars produced from January 2025.
So the chain runs statute to exchange to product, and the last link is the one a salesperson controls. A refiner can produce metal that is chemically 999 and still sit outside the standard because the brand was never approved, or because a mark is missing. This is the practical reason we tell readers to ask for the refiner name in writing rather than accepting a purity claim: purity is a property of the metal, eligibility is a property of the producer.
The same architecture explains the gold and silver split people find confusing. Gold takes its threshold from the gold contract, silver from the silver one, which is how the industry ends up quoting .995 for one metal and .999 for the other from a single sentence of law. We work through the gold side of that sentence, and the 22-karat carve-out that makes gold stranger than silver, on our page covering IRA-approved gold coins, bars and purity rules.
Every fineness figure below was checked against the issuing mint or the statute in August 2026, not against a dealer catalogue. Dealer catalogues are where rounding errors and hopeful claims live.
The only silver product with a belt and braces. It clears 999 on its own metal, and it is separately named through 31 U.S.C. 5112(e), so it would remain eligible even if a contract market moved its deliverable standard. That redundancy is unique to the Eagle among the coins listed here, and it is the honest reason it is the default holding at every provider we cover, ahead of any argument about recognition or liquidity.
The Royal Canadian Mint strikes it in one troy ounce of 99.99 percent pure silver, a grade above the threshold rather than level with it, and has shipped it with anti-counterfeit radial lines and a micro-engraved maple leaf since the mid-2010s. It typically carries a thinner premium than the Eagle, which on a large order is worth more than the extra decimal place.
The Austrian Mint lists the one-ounce Philharmonic as Silver Ag 999, 31.10 grams, 37.00 millimetres, face value 1.5 euro. It has been struck only in the one-ounce size since sales opened in February 2008. Availability at a given dealer varies; eligibility does not.
This is the one where the year on the coin decides the answer. The Royal Mint specifies its one-ounce Silver Britannia as 999 fine, and the coin has carried that standard since the mint lifted purity from 958 in 2013. A pre-2013 Britannia is a perfectly good coin and an ineligible one, because 958 does not clear a 999 test. If a dealer offers you Britannias for an IRA, the date range is not a detail to check later.
A silver bar qualifies when it meets the fineness standard and comes from a producer an exchange or the London market has accredited, which is why the two lists worth knowing are the COMEX approved-brand list and the London Bullion Market Association Good Delivery List. The LBMA does not hand accreditation out on assay results alone: an applicant refiner has to show a track record in the market, a tangible net worth threshold, and refined silver output of at least 50 tonnes, and it is rechecked annually thereafter.
Most eligibility tables print a verdict and stop. The right-hand column here is the useful one, because it tells you which door a product is using, and therefore what would have to change for the answer to change.
| PRODUCT | FINENESS | STATUS | THE BASIS, AND WHAT IT DEPENDS ON |
|---|---|---|---|
| American Silver Eagle (bullion strike) | .999 | Eligible | Both doors. Named at IRC 408(m)(3)(A)(ii) via 31 U.S.C. 5112(e), and independently clears the contract-market standard. |
| American Silver Eagle (proof strike) | .999 | Eligible, rarely wise | Same coin, same subsection. The premium is a pricing decision, not a legal one. See the section below before ordering. |
| Canadian Silver Maple Leaf | .9999 | Eligible | Bullion door only. Royal Canadian Mint specification of 99.99 percent purity sits above the 999 line with room to spare. |
| Vienna Philharmonic, 1 oz | .999 | Eligible | Bullion door only. Austrian Mint lists the alloy as Silver Ag 999 at 31.10 grams. |
| Silver Britannia, 2013 onward | .999 | Eligible | Bullion door only, and date-dependent. The Royal Mint specifies 999 fine on current issues. |
| Silver Britannia, pre-2013 | .958 | NOT ELIGIBLE | Fails the fineness test by a wide margin. Same name, same mint, wrong alloy. |
| Bars and rounds, accredited refiner | .999+ | Eligible | Bullion door, conditional on the producer. COMEX requires an Exchange-approved brand plus incised weight, fineness, bar number and mark. |
| Bars from an unlisted refiner | varies | NOT ELIGIBLE | Assay is irrelevant if the brand is not approved. Accreditation attaches to the producer, not to the individual bar. |
| Pre-1965 dimes, quarters, half dollars | .900 | NOT ELIGIBLE | Misses both doors. Below the contract-market minimum, and not a coin described in 31 U.S.C. 5112(e). |
| 1965 to 1970 half dollars | .400 | NOT ELIGIBLE | The Coinage Act of 1965 cut half-dollar silver content rather than removing it. Still nowhere near the line. |
| Graded or slabbed silver coins | varies | TREAT AS OUT | Priced on grade and mintage rather than metal, which is the collectible characteristic the exception was never meant to reach. |
| Sterling silver, flatware, holloware | .925 | NOT ELIGIBLE | Below the threshold and not bullion in any form the statute recognises. |
Fineness figures verified August 2026 against 31 U.S.C. 5112(e) for the Silver Eagle, the Royal Canadian Mint product specification for the Maple Leaf, the Austrian Mint specification for the Philharmonic, and The Royal Mint specification for the one-ounce Silver Britannia. The 999 deliverable standard and the incised-mark requirement come from the COMEX silver futures rules. Custodians may refuse individual products the statute permits, so confirm the specific item before the order is placed.
This is the section that matters, because silver is the metal most often sold on a story rather than a spot price, and the story is aimed squarely at people close to retirement.
Bags of circulated pre-1965 dimes, quarters and halves trade under names like junk silver, constitutional money and survival silver. The alloy is 90 percent, a standard the Coinage Act of 1965 then removed from dimes and quarters and reduced in half dollars, which is exactly why those bags exist as a distinct market at all. Nothing in that history gets them near a 999 test, and the coins are not the coin described in 31 U.S.C. 5112(e). They fail both doors, and no custodian relationship changes that. If someone pitching an IRA silver coins allocation reaches for the word constitutional, the conversation has stopped being about retirement.
Encapsulation and a grade turn an ounce of metal into a graded object whose price is set by scarcity and condition. Even where the underlying coin would clear the purity rule, you are no longer buying an ounce, you are buying an opinion about an ounce, and the resale market for that opinion is thin. Treat any product whose sales pitch cites mintage figures, population reports or a limited release as outside the account.
The pattern our researchers see most often is not an outright ineligible sale. It is a caller who agrees to bullion, then receives a follow-up call recommending a semi-numismatic upgrade before the order settles. The metal weight barely moves and the invoice does. Our page on gold IRA scams and the pressure tactics behind them documents that sequence in detail, including the phrases that precede it. Read it before you take a second call, not after.
One clarification worth making, because the three traps above are eligibility problems and the biggest cost in this metal is not. The spread between the price you pay and the price a desk will bid is wider in silver than in gold, and it applies to fully eligible bullion. We handle that arithmetic, along with what the ten providers we cover publish about the white metal, on our silver IRA guide. This page stays on the eligibility question.
Here is the honest version, since most pages either bar proofs outright or sell them enthusiastically, and neither is right. A proof American Silver Eagle is the same coin the statute describes: one troy ounce, .999 fine, issued under the same subsection as the bullion strike. Custodians routinely accept it, and a dealer telling you it is eligible is telling you the truth.
The problem is on the invoice. Congress told the Secretary how these coins are priced: at "the market value of the bullion at the time of sale, plus the cost of minting, marketing, and distributing such coins," a formula that expressly includes labour, dies, machinery, promotional and overhead expense. A proof finish is more expensive on every one of those inputs. You are paying, correctly and lawfully, for a manufacturing process. What you are not getting is more silver.
That gap is permanent in one direction. When you eventually sell, a buyback desk prices the ounce, and the collector market that might pay more for a proof is not the market your custodian liquidates into. So the rule of thumb we give readers who buy silver in IRA accounts is simple: if a product's price is explained by anything other than weight and purity, ask what the desk would bid for it today, and get that number in the same email as the offer.
Eligibility is decided by the product, but the odds of being offered an eligible product depend heavily on who is quoting. A dealer that leads with sovereign bullion and prints the refiner name without being asked is doing the job. Our full gold IRA company rankings score all ten providers we track on fees, custody, service and reputation; the two below are where our verified data points for this specific question. Minimums are set by dealers rather than by any rule about IRA eligible precious metals, and were verified Jun 2026.
It is silver that gets through one of two doors written into Internal Revenue Code 408(m)(3). The first door names the American Silver Eagle by cross-reference to 31 U.S.C. 5112(e), the subsection that requires a coin of 31.103 grams containing .999 fine silver. The second door admits silver bullion whose fineness equals or exceeds the minimum a contract market requires for metal deliverable against a regulated futures contract, which in practice means the COMEX silver standard of 999 fineness from an Exchange-approved brand. Whichever door a product uses, the statute also requires the metal to sit in the physical possession of the IRA trustee, so a coin bought and kept at home is outside the exception even if the coin itself qualifies.
A proof strike is the same coin the statute describes, one troy ounce of .999 fine silver issued under 31 U.S.C. 5112(e), and custodians routinely accept it. The finish does not add metal. It adds cost, because 31 U.S.C. 5112(f) directs the Secretary to price these coins at the market value of the bullion plus the cost of minting, marketing and distributing them, and a proof is expensive on all three counts. You pay that gap on the way in and you almost never recover it on the way out, because a buyback desk bids the ounce. Confirm the specific product with your custodian before ordering, since a custodian may decline items the statute permits.
No, and it fails on both grounds rather than one. Dimes, quarters and half dollars struck before 1965 were 90 percent silver, an alloy the Coinage Act of 1965 then removed from dimes and quarters and reduced in half dollars. A 90 percent alloy is nowhere near the 999 fineness the contract-market standard requires, and these are not coins described in 31 U.S.C. 5112(e), so the named-coin door is shut too. Junk bags are sold hard to retirees under survival and constitutional-money language. That pitch belongs to a taxable purchase, not a retirement account.
The mainstream sovereign issues that clear the purity test on their own merits. The Royal Canadian Mint strikes the Silver Maple Leaf at 99.99 percent purity. The Austrian Mint lists the one-ounce Vienna Philharmonic as Silver Ag 999. The Royal Mint specifies its one-ounce Silver Britannia as 999 fine, a standard the coin has carried since the 2013 issues; earlier Britannias were struck in a lower-grade alloy and do not qualify. Each of these enters through the bullion door rather than the named-coin door, which means a change in the deliverable standard would reach them and would not reach the Eagle.
Yes, when the producer is accredited and the fineness clears the line. COMEX requires silver delivered against its contract to assay to a minimum of 999 fineness and carry a brand approved by the Exchange, with the weight, fineness, bar number and brand mark incised on the bar. The London Bullion Market Association runs a parallel accreditation, admitting refiners only after they demonstrate production scale, financial standing and consistent output, and reviewing them annually. Ask for the refiner name and the serial number before you agree to a bar order, not after the invoice arrives.
The rule is worded identically for both metals and lands in a different place because the futures contracts differ. Internal Revenue Code 408(m)(3)(B) points at whatever minimum fineness a contract market requires for deliverable metal, so gold inherits the gold contract standard and silver inherits the silver one. The practical result is the .999 figure you see quoted for silver against .995 for gold. The named-coin door also behaves differently: it rescues the 22-karat American Gold Eagle from failing on purity, whereas the American Silver Eagle already clears 999 and uses the named door as a second, independent basis.
Related reading: the wider gold IRA rules for 2026, where approved metal is vaulted, and the fees you pay to hold it.
Eligibility law is taken from statute. Fineness is taken from the issuing mint or the exchange rulebook, never from a dealer page. All source links below were retrieved on 12 August 2026.
This page is educational and is not tax, legal or investment advice. A custodian may decline a product the statute permits, so eligibility should always be confirmed on the specific item before an order is placed.
Our free kit lists the coins and bars that clear the rule, the questions that expose a semi-numismatic upsell, and the fee and minimum comparison behind our rankings. No cost, no obligation.