After you choose a custodian, the next real decision in a Gold IRA is what form of metal to hold. Bars and coins are both IRS-eligible, but they differ on premium, divisibility, and how easily a custodian will accept and later sell them. Those differences quietly shape your returns over a long holding period, so it is worth understanding the trade-offs before you place an order.
The Premium Math and Why Bars Win on Day One
Every piece of physical gold trades above the spot price, and that markup is called the premium. It pays for refining, minting, distribution, and dealer margin. Bars carry the lowest premiums because they are the cheapest to produce. In 2026, IRA-eligible bars from accredited refiners typically run about 1% to 3% over spot, with larger bars at the low end and one-ounce bars a little higher. Coins generally cost more, often 3% to 8% over spot, because they are more intricate to strike and carry brand and design appeal.
Premiums also fall as bar size rises. A one-kilogram bar usually carries the slimmest markup, a 10-ounce bar a little more, and a one-ounce bar more still, because the fixed costs of refining and stamping are spread across more metal in a larger bar. Coins sit at the top of the range for the opposite reason, since each one is individually struck and packaged.
That gap compounds. If you put $100,000 into bars at a 2% premium versus coins at a 6% premium, you start with roughly $4,000 more metal simply from the lower markup. Over a long holding period, that head start matters.
What this means for you: if maximizing ounces per dollar is the goal, bars give you more metal up front. The catch shows up later, at distribution time.
IRS Purity Rules for Bars and Coins
Both bars and coins must clear the IRS fineness standard. Under the tax code, gold in an IRA must be at least .995 fine, which is 99.5% pure, and bars must be produced by a refiner accredited by a national mint or a NYMEX or COMEX approved assayer. Common eligible bars come from refiners such as PAMP Suisse, Valcambi, the Perth Mint, and the Royal Canadian Mint.
Coins follow the same .995 rule with one well-known exception. The American Gold Eagle is only 22 karat (.9167 fine), below the bullion standard, yet Congress explicitly authorized it for IRAs in the Taxpayer Relief Act of 1997. The Canadian Gold Maple Leaf, by contrast, meets the standard outright at .9999 fine. If you want a deeper primer on what qualifies, Investopedia keeps a useful overview of Gold IRA rules.
What this means for you: purity rarely disqualifies mainstream bullion. The bigger eligibility question is whether your specific custodian will accept the size and brand you want, which is where large bars can run into limits.
Custodian Acceptance of Different Bar Sizes
Eligibility under the tax code is not the same as acceptance by your custodian and its partner depository. Even when a bar meets the .995 standard, individual custodians set their own policies on which sizes and refiners they will hold. Some will store bars only up to a certain size, while others accept large LBMA Good Delivery bars that can weigh 400 ounces. Brand matters too, since depositories favor refiners on recognized accreditation lists because those bars are easier to verify and resell without a new assay.
What this means for you: before you commit to a particular bar size, confirm in writing that your chosen custodian and depository will hold it. A bar you cannot store in your account is not an option, no matter how low its premium looks on paper.
The RMD Divisibility Problem
This is the issue most bar-versus-coin discussions skip. Traditional IRAs require minimum distributions starting at age 73 under current rules. Your required minimum distribution, or RMD, is a dollar amount based on your account balance, and you have to take it every year.
If your account holds only large bars, satisfying a partial RMD gets awkward. Imagine your RMD is $5,000 but the smallest item in your account is a one-kilogram bar worth well over $100,000. You cannot shave a sliver off a bar. You either take an in-kind distribution of an entire bar, which is far more than you owe, or the custodian sells part of your holdings to raise the exact cash, which triggers a sale and its spread. Smaller coins and small bars divide much more cleanly into RMD-sized pieces.
What this means for you: if you expect to take RMDs from the account, holding at least some metal in one-ounce units saves you from forced sales or oversized distributions later.
Buyback Spreads and Liquidity When You Sell
When you eventually liquidate, the form of your metal affects how fast and how cleanly it sells. Recognizable one-ounce coins, such as Eagles and Maple Leafs, are among the most liquid forms of physical gold. Dealers know them, trust them, and will buy them back quickly, often at a tight spread.
Bars can be just as liquid when they stay sealed in their assay card from a major refiner. Once that seal is broken, or for very large bars, a buyer may require a fresh assay to confirm purity, which adds time and cost. Allocated storage in an approved depository keeps the chain of custody intact, which helps preserve a bar’s resale value.
What this means for you: coins offer the most frictionless exit, while bars stay liquid as long as you keep them sealed and properly stored.
The Hybrid Bars-and-Coins Strategy
Because bars win on cost and coins win on flexibility, many fee-only advisors suggest blending the two rather than choosing one. A common split is roughly 60% to 70% in bars to capture the premium savings on the bulk of the position, with the remaining 30% to 40% in one-ounce coins to handle RMDs and partial sales smoothly.
Storage cost is usually charged per item or as a percentage of value, so a coin-heavy account can cost slightly more to store each year. That is a minor expense next to the premium savings on bars and the distribution flexibility from coins.
What this means for you: you do not have to pick a side. A deliberate mix lets the bars do the heavy lifting on value while the coins keep your options open at distribution time.
The Key Takeaway
Bars and coins are both legitimate Gold IRA holdings, and the right choice depends on your timeline. Bars deliver more metal per dollar today. Coins deliver flexibility and liquidity tomorrow. If you are years from retirement and focused on accumulation, weighting toward bars makes sense. As you approach the age when RMDs and partial sales begin, having a meaningful share in one-ounce coins prevents the divisibility headaches that catch bar-heavy investors off guard. For most people, a thoughtful blend of the two is the most practical answer.
