Updated: August 10, 2026

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A gold IRA can hold three physical formats: coins from a sovereign mint, rounds from a private mint, and bars from a private refiner. All three can pass the IRS eligibility gate when the fineness rule and the mint or refiner accreditation are met. What separates them is not IRA legality. It is the premium you pay, the way they sit in a wholesale market, and how easy they are to divide when you take distributions.

This page walks the three formats side by side. The statutory rule lives in section 408(m) of the Internal Revenue Code, and IRS Publication 590-A repeats the fineness table. As of August 10, 2026, the same two-part test still controls what a self-directed IRA custodian is allowed to hold in metal.

Table of contents show

What actually separates a coin, a round, and a bar

A coin is a piece of bullion struck by a sovereign mint under a statute that assigns it a face value in the issuing country’s currency. The American Gold Eagle, the American Gold Buffalo, the Canadian Maple Leaf, and the Austrian Philharmonic are common IRA examples. The face value is almost always far below the metal value inside.

A round is a piece of bullion struck by a private mint. It looks like a coin, often carries a design or a mint logo, and comes in familiar weights. It has no face value, and no country stands behind it as currency. Sunshine Mint, Golden State Mint, and Scottsdale Mint produce common rounds sold to investors.

A bar is a rectangular ingot poured or minted by a private refiner. Bars trade in wholesale sizes such as 1 ounce, 10 ounces, 1 kilogram, and 400 troy ounces. The last size is the wholesale trading unit on the London bullion market. Bars carry a serial number, a refiner stamp, and an assay mark.

The IRC 408(m) test that all three formats must pass

Section 408(m) of the Internal Revenue Code lists what a self-directed IRA can and cannot hold. Collectibles are barred by default. Two carve-outs let physical metal in.

The first carve-out, 408(m)(3)(A), names specific coins the IRS accepts by statute. American Gold Eagles and American Silver Eagles are on that list, along with certain American Platinum Eagle strikes. Congress named the coin, not the finish. That is why proof and burnished American Eagles pass the same test as bullion strikes.

The second carve-out, 408(m)(3)(B), points to the purity floor used for physical delivery on a regulated futures exchange. This is the gate that non-named coins, all rounds, and all bars must clear.

Metal	Minimum fineness	Common expression
Gold	0.995	99.5 percent pure
Silver	0.999	99.9 percent pure
Platinum	0.9995	99.95 percent pure
Palladium	0.9995	99.95 percent pure

Table 1. Minimum fineness for IRA-eligible bullion under IRC 408(m)(3)(B). Source: 26 U.S.C. 408(m)(3); IRS Publication 590-A.

A round or bar must also come from a recognized producer. The market standard is a refiner on the London Bullion Market Association Good Delivery list, or a producer that a US self-directed IRA custodian has vetted against comparable standards. That test screens out unbranded pieces that could not be resold at wholesale.

Legal-tender status: what it changes for an IRA (very little)

Coins carry legal-tender status in the country that issued them. An American Gold Eagle has a face value of 50 dollars for the 1 ounce coin. A Canadian Gold Maple Leaf has a face value of 50 Canadian dollars. Neither number matters to your IRA, because both trade for the value of the metal inside, not the printed number.

Rounds and bars have no face value. That absence carries no penalty in an IRA. The custodian holds any of the three formats at the market value of the metal, adjusts on statement dates, and settles distributions at that number. Legal-tender status is a numismatic feature, not a tax feature.

Where legal-tender status does matter is outside the IRA, in a rare export or import scenario, where a sovereign coin can move under different customs treatment than a private round or bar. That case is niche and does not shape a normal retirement account decision.

The premium tier: coin above round above bar

Premium is the amount you pay above the live spot price of the metal. It covers the producer’s cost, the wholesale margin, and the dealer’s retail margin. The three formats sit at three different premium levels for the same ounce of metal.

Bullion coins from a sovereign mint carry the highest recurring premium. A common-date American Gold Eagle typically trades at 3 to 8 percent above spot in normal markets. The premium widens in supply-stressed periods and rarely falls below the mint’s own dealer schedule.

Rounds from a respected private mint usually price 1 to 4 percent above spot at retail for standard 1 ounce products. The saving over a sovereign coin comes from the absence of a mint fee tied to a legal-tender program. The metal weight and purity are identical.

Bars from a Good Delivery refiner usually carry the tightest premium. A 1 kilogram gold bar can trade at less than 1 percent above spot in a competitive market. The 10 ounce and 1 kilogram sizes drive most of the wholesale efficiency, and larger bars press even closer to spot.

Divisibility inside and outside an IRA

Divisibility is the ability to sell or take out a small piece of the position without touching the whole. This is where coins and rounds pull ahead of bars, and where the same feature matters differently inside an IRA than outside.

A 100 ounce coin-and-round position built of 1 ounce and fractional pieces lets a retiree take a required minimum distribution or a partial in-kind draw at the exact weight needed. The custodian ships a small piece to the depository and settles the wire.

A 100 ounce position built of a single 100 ounce bar has to be resold as a full bar. The custodian cannot shave metal off a serialized ingot. That forces a full sale, a partial cash distribution, and a re-purchase if the retiree wants to hold the rest of the metal.

Small bars in the 1 ounce, 5 ounce, and 10 ounce sizes recover most of that flexibility at a higher per-ounce premium. A depository can pull individual small bars from a segregated stack without breaking the position.

Resale market depth for each format

Depth is the ease of finding a buyer at a fair spread on any given day. All three formats have a real secondary market. The spread you pay to exit is not the same across the three.

Sovereign coins have the deepest retail market. Any US dealer, and most secondary coin shops, will buy a common-date American Gold Eagle at a small discount to spot, often at spot minus 1 to 3 percent for volume lots. That depth is the reason the entry premium is higher.

Recognized rounds have a solid but narrower retail market. A round from a well-known private mint sells easily to a wholesale desk and to online bullion dealers. Buy-side spreads sit close to those on coins for the same metal weight.

Good Delivery bars have the deepest wholesale market. The 400 ounce London bar and the 1 kilogram bar are the wholesale trading standard. A retail seller of a small-format bar from a recognized refiner still finds a buyer, at spreads similar to a round.

LBMA accreditation and why the refiner name matters

The London Bullion Market Association keeps a Good Delivery list of refiners whose bars meet uniform standards for weight, purity, marking, and assay. A bar or round from a Good Delivery refiner is accepted by any wholesale counterparty without a fresh assay.

Self-directed IRA custodians lean on the same list, plus a short set of US-facing producers with equivalent standing. When a custodian screens a bar or round on intake, the refiner name is the single most important field. A stamp from PAMP Suisse, Valcambi, Argor-Heraeus, Metalor, or Asahi Refining clears the check quickly.

A piece from a producer that is not on any recognized list can still be pure metal. It rarely clears a custodian’s intake, because the resale market will not treat it as fungible. That is the practical reason a retiree should not chase a discount from an unbranded round or bar.

Side-by-side snapshot of the three formats

The following table condenses the practical differences a retiree meets on any typical gold IRA order.

Attribute	Coins	Rounds	Bars
Producer	Sovereign mint	Private mint	Private refiner
Legal-tender status	Yes, in issuing country	No	No
IRA eligibility rule	408(m)(3)(A) named coin, or 408(m)(3)(B) fineness	408(m)(3)(B) fineness + recognized mint	408(m)(3)(B) fineness + recognized refiner
Typical retail premium over spot	3 to 8 percent	1 to 4 percent	Under 1 to 3 percent by size
Common weights	1 oz, 1/2, 1/4, 1/10 oz	1 oz, 5 oz, 10 oz	1 oz, 10 oz, 1 kg, 100 oz, 400 oz
Divisibility inside an IRA	High, fractional coins available	High, small weights available	Medium for small bars, low for 100 oz+
Wholesale market depth	Deep, retail-heavy	Moderate to deep	Deep, especially 1 kg and 400 oz
Buy-back spread from a dealer	Tight for common dates	Tight for recognized brands	Tight for Good Delivery brands
Custodian intake risk	Low for named coins	Low for recognized mints	Low for LBMA refiners

Table 2. Coins, rounds and bars in a gold IRA context. Illustrative ranges; premiums vary with size, brand, and market conditions.

Which format fits which retiree profile

The right mix depends on account size, planned distribution style, and the depository setup. A few common patterns show up on the OPRS review desk.

A retiree with a $50,000 to $150,000 gold IRA who wants the flexibility to take small in-kind distributions tends to sit best with a coin-and-small-round core. The entry premium is higher, and the ability to peel off 1 ounce or fractional pieces year by year offsets that cost over the life of the account.

A retiree with a $250,000 or larger gold IRA planning to hold the position for a long horizon can shift a share into 10 ounce and 1 kilogram bars from Good Delivery refiners. The premium saving on the bar tranche protects entry basis. A coin sleeve stays useful for future distributions.

A retiree taking a rollover into gold for the first time, with limited familiarity with the market, does well to start entirely in sovereign coins. The higher premium buys simplicity, brand recognition, and a resale market any dealer can quote.

What the custodian actually confirms on intake

Self-directed IRA custodians do not audit the price you pay. They confirm three things on intake: that the piece is on the 408(m)(3)(A) list or clears the fineness rule, that the producer is on a recognized mint or refiner list, and that the depository accepts the product.

A common-date American Gold Eagle passes without friction. A 1 ounce round from Sunshine Mint passes without friction. A 1 kilogram PAMP Suisse bar passes without friction. A no-name round or a bar with a stamp the custodian does not recognize is where an intake stalls.

The custodian records the wire amount as your basis. Any premium you paid enters the account as basis and shows up as an implicit drag if the metal has not moved. That is why format choice matters at the dealer step, before the wire leaves.

Common mistakes when mixing the three formats

Three recurring errors show up in dealer complaints and custodian intake logs. Each is easy to avoid at the sales-call stage.

Assuming any round is IRA-eligible because it looks like a coin. The 408(m)(3)(B) fineness rule and a recognized mint are both required.
Buying a large single bar in a small IRA. Divisibility disappears, and the first distribution forces a full sale.
Chasing a small premium saving on an unbranded bar. The custodian may refuse intake, and the resale market treats the piece as opaque.

A dealer that recommends a mix of sovereign coins plus Good Delivery bars, priced against live spot with a stated premium per line item, tends to survive the OPRS review. A dealer that leads with unbranded rounds or exotic bars at hard-to-benchmark prices rarely does.

For the finish-level rule that governs proof and bullion strikes of the same coin, see our page on proof coins versus bullion for a gold IRA. For the broader collectible line that the IRC blocks entirely, see numismatic versus bullion coins for an IRA.

Rounds vs Coins vs Bars in a Gold IRA: How the IRS Reads the Three Formats