Product guide · Updated October 2026

IRA-Approved Gold Bars: Which Bars Qualify

By Elena Marsh, Senior Editor, Bullion Products & IRA Eligibility Research · Specs verified against the statute, IRS publications, and mint spec sheets as of October 2026
On this page
  1. The two requirements a bar must pass
  2. Refiners whose bars IRA custodians accept
  3. Sizes: what makes sense inside an IRA
  4. The assay certificate is part of the product
  5. Bars vs coins, in one paragraph

Bars are the low-premium side of IRA gold: per ounce, a 100 g PAMP bar costs materially less over spot than any bullion coin, because you are paying for metal rather than minting. The eligibility question has a two-part answer that surprises people who expected an IRS stamp: the bar must meet the fineness standard, and it must come from a refiner the commodity exchanges trust to deliver on a futures contract. Both parts trace to IRC §408(m)(3)(B), and the rule page walks the chain in full.

The two requirements a bar must pass

  1. Fineness: .995 or better. The statute sets no number; it incorporates the delivery standard of regulated gold futures contracts, and the IRS restates the result in Publication 590-B: gold bullion must be .995 fine minimum. Nearly every modern investment bar is .9995 or .9999 — comfortably above.
  2. Accredited refiner. The fineness language reads through to the exchanges’ delivery lists, so custodians accept bars from refiners on COMEX/NYMEX delivery or the LBMA Good Delivery list. A .9999 stamp from an unlisted private mint does not make an eligible bar; the list is the eligibility document.

And the condition that outlives the purchase: the bar must remain in the physical possession of the IRA’s trustee — your custodian, through its depository. Eligibility is a property of the holding arrangement, not just the product.

Refiners whose bars IRA custodians accept

No official government list exists; the table below reflects the refiners accredited on the exchange delivery lists and commonly found in custodian product schedules.

RefinerCountryNotes for IRA buyers
PAMP SuisseSwitzerlandThe default IRA bar — Lady Fortuna design, assay-card packaged, universally accepted
ValcambiSwitzerlandWide size range from 1 g to kilo bars
Argor-HeraeusSwitzerlandKilo and 100 g bars common in IRAs
MetalorSwitzerland / USLong COMEX history
Hermann Hiesser / HeraeusGermanyLBMA Good Delivery, EU distribution
Perth MintAustraliaGovernment-guaranteed mint; bars and coins
Royal Canadian MintCanadaRMG (Refinery) bars, serial-matched assay cards
Johnson Matthey (vintage)UK / USHistoric refiner; no longer striking retail bars — see the vintage trap below
Engelhard (vintage)USCollector favorite; fineness fine, paperwork often missing

The practical verification is unglamorous: ask the custodian for its accepted-products schedule and buy from it. Custodians maintain that list precisely because the statute’s “contract market” language gives them a defensible standard — and because they are the ones whose storage vault has to hold the result.

Sizes: what makes sense inside an IRA

SizePremium over spotTrade-off in an IRA
1 ozModerateMaximum liquidity per unit; the workhorse
50 g / 100 gLowerBest balance of premium and divisibility for most accounts
Kilo (32.15 oz)Lowest per ounceSells whole — fine for larger balances, lumpy for RMDs
100-oz plateNear lowestInstitutional scale; rarely practical in retail IRAs
1 g–20 gHighest per ounceFractional convenience carries the worst premium math in the business

One retirement-specific wrinkle: required minimum distributions from an IRA holding only kilo bars mean liquidating (or distributing) a ~$100,000 unit at a time. If RMD age is on the horizon, the size ladder is part of the plan, not an afterthought.

The assay certificate is part of the product

Modern accredited bars ship with serial-matched assay cards — the document that certifies weight, fineness, and refiner, and the thing a custodian’s vault records at intake. Three consequences worth knowing before you shop:

  • Buy bars in sealed assay packaging, and keep it sealed; an opened card is a negotiation with the custodian.
  • The serial number on the bar, card, and trade confirmation must match. Mismatches are the most common settlement delay in gold IRAs.
  • Vintage bars without modern assay are the exception that proves the rule: a 1970s Engelhard pour bar may be .9995 fine and still rejected, because nothing connects that specific bar to a current delivery-list entry without costly re-assay. Vintage premiums charged on “history” are spread with no eligibility behind them.

Bars vs coins, in one paragraph

Coins carry minting premiums — Eagles the most, Maple Leafs and Philharmonics less — and buy instant recognizability at resale plus fractional flexibility. Bars carry lower premiums per ounce and buy pure metal exposure, with the refiner’s accreditation doing the trust work the mint’s brand does for coins. Both are fully eligible under the same statute; the hub comparison table puts the factors side by side, and the choice is a premium-versus-liquidity decision, not an eligibility one. Quote spreads in writing against spot, dated — premiums move with supply, demand, and dealer mood.

Whatever the size and refiner, the boundary is the same one the what-qualifies page states once: .995 fineness, an accredited refiner, and possession by the trustee from settlement to sale.

Frequently asked questions

Short answers to the questions buyers ask most. Each answer restates a rule from the statute or an IRS publication — the guides link the source for every spec.

What gold bars are IRA approved?

Bars of at least .995 fineness produced by a refiner whose output the commodity exchanges accept for delivery — COMEX/NYMEX in the US, the LBMA Good Delivery list internationally — and held by your IRA custodian. There is no official IRS list of bars; your custodian's accepted-products schedule is the operative list, and it is built on those accreditations.

Which refiners make IRA-eligible gold bars?

The names that cover most IRA purchases: PAMP Suisse, Valcambi, Argor-Heraeus, Metalor, and Heraeus (Switzerland and US operations), the Perth Mint (Australia), and the Royal Canadian Mint — plus vintage Johnson Matthey and Engelhard bars, which are eligible on fineness but can fail custodian documentation checks (see below).

Are vintage Engelhard or Johnson Matthey bars IRA eligible?

Fineness-wise, often yes — vintage .9995 Engelhard pour bars and older JM bars exceed the standard. Practically, many custodians decline them because an old bar without a modern assay certificate cannot be matched to a current delivery-list entry without extra testing, and the nostalgic premium some sellers charge adds spread without adding eligibility. Expect 'eligible in theory, declined in practice' — ask your custodian before buying any vintage bar.

What size gold bar is best for an IRA?

IRA-sized means liquidity you control: 1 oz to 100 g bars dominate custodian product lists, with kilo bars and 100-oz plates carrying the lowest premium per ounce but selling whole. Fractional Gram bars (1 g–20 g) carry the highest per-ounce premiums in the industry — the convenience is real and priced accordingly.

Do gold bars need an assay certificate in an IRA?

Modern bars ship with an assay card or stamped serial-matched certificate, and custodians expect it: the certificate is what ties a specific bar to a specific refiner's delivery-list accreditation. A bar without its assay documentation can be rejected at settlement even when the refiner is accredited — treat the certificate as part of the product.

Next step · Check what qualifies

The fineness rules behind the list

The list is only half the answer. The other half is the standard itself: which statute sets it, where the .995/.999/.9995 numbers come from, what happens if you buy a coin that misses them — and the five checks that keep a bad product out of your IRA.

Read the checklist

Elena Marsh

Senior Editor, Bullion Products & IRA Eligibility Research · Denver, CO

Bullion-products research editor with 12 years on coin specs, refiner accreditation, and IRA eligibility standards; leads the IRA Gold Coins Guide desk. About the editor →