Other Sovereign Gold Coins: Philharmonic, Britannia, Kangaroo
Foreign gold coins are not named in the IRA coin exception, so each relies on the bullion exception and its fineness test. The Philharmonic, Britannia and Kangaroo list 999.9 or 99.99% fineness, above the 995 fineness minimum in the NYMEX gold contract. The 22-carat Krugerrand, included for contrast, is below it. These are interpretations to confirm professionally.
Beyond the U.S. and Canadian coins, this page covers three widely traded sovereign gold coins, the Vienna Philharmonic, the Gold Britannia and the Australian Kangaroo, plus the 22-carat Krugerrand as a contrast. It lists what each issuer publishes and how that lines up with the IRA purity test. It is a companion to our guides to IRA-eligible gold coins and the Canadian Gold Maple Leaf.
Professional review is advised. The reading below is our interpretation of the statute and is not a legal conclusion. This page does not say whether any coin suits your retirement plan.
What do the issuers publish about these coins?
| Coin | Issuer | Published purity | Published weight and size | Face value |
|---|---|---|---|---|
| Vienna Philharmonic (1 oz) | Austrian Mint | "Gold Au 999,9" | Fine weight 31.10 g / 1.00 oz; diameter 37.00 mm | 100 Euro |
| Gold Britannia (2026, 1 oz) | The Royal Mint | 999.9 fine gold | 1 troy oz of pure metal; diameter 32.69 mm | £100 |
| Australian Kangaroo (2026, 1 oz) | Perth Mint | 99.99% fineness | 1.000 troy oz gold content; minimum gross weight 31.107 g; maximum diameter 32.60 mm | AUD 100.00 |
| Krugerrand | Rand Refinery | "22 carat gold" | Sold in 1 ounce, 1/2, 1/4 and 1/10 ounce sizes of pure gold | Not stated on the page we opened |
Sources: the Perth Mint, the Austrian Mint, The Royal Mint and Rand Refinery. None of the four pages mentions IRAs. The Royal Mint page adds that "Investments in physical Bullion products are not regulated by the Financial Conduct Authority." The Rand Refinery page describes the Krugerrand as "the only legal tender bullion coin with its face value denominated in ounces of pure gold." Its purity text contains an apparent typing error ("9167 of pure gold and 833 parts copper"), so we rely on the "22 carat" wording.
How do the IRA rules apply?
The tax code treats "any metal or gem" and "any stamp or coin" as collectibles (26 U.S.C. 408(m)), and the IRS says an account that acquires one "is deemed to receive a distribution" (IRS). Our collectibles rule guide explains the effect.
The coin exception names certain U.S. coins described in 31 U.S.C. 5112 and state-issued coins, so in our reading none of these three foreign coins can use it. That leaves the bullion exception: bullion that meets the minimum fineness a contract market requires, held by a trustee. The NYMEX gold rule says gold "shall assay to a minimum of 995 fineness" (CME Group). The comparison, on published purity:
| Coin | Published purity | Against .995 |
|---|---|---|
| Vienna Philharmonic | .9999 | Above |
| Gold Britannia | .9999 | Above |
| Australian Kangaroo | .9999 (99.99%) | Above |
| Krugerrand | 22 carat (about .9167, our arithmetic from 22/24) | Below |
For the Krugerrand, 22 carat means 22 parts in 24, which is about .9167. That is below .995. In our reading, a coin below the fineness minimum would not qualify under the bullion exception, and it is not one of the U.S. coins named in the coin exception. This reading rests on the NYMEX contract cited above. We did not find an IRS statement on the Krugerrand, so a custodian and a tax professional can confirm how it is treated before any purchase with IRA funds.
Even for the .9999 coins, the open question is the same as for the Maple Leaf: whether a foreign legal-tender coin counts as "bullion." That is our interpretation of an open point, and we did not find an IRS statement on it.
What should you check before buying?
- Custodian and depository acceptance, which may be specific to the product and year.
- Custody. FINRA and the CFTC say "Metals in an SDIRA must be held by the IRA trustee or custodian" (FINRA and CFTC).
- Total cost. The bulletin says dealer spreads can be large, with some fraudulent dealers charging more than 300 percent. Buy and buyback quotes can be compared with the spot price.
- Product name. For collector versions of U.S. coins and products that fail the tests, see proof coins and non-eligible coins.
What are common mistakes?
- Treating purity as the only test. Trustee custody also applies to bullion.
- Relying on marketing labels instead of the statute and the custodian.
- Mixing up a coin's gold content with its gross weight (the Perth Mint page lists them separately).
This page is general information. A tax professional or attorney can confirm how the bullion exception applies to foreign coins.
Sources
- 1 Ounce Gold Vienna Philharmonic Coin, Austrian Mint. Accessed Invalid Date.
- Britannia 2026 1 oz Gold Bullion Coin, The Royal Mint. Accessed Invalid Date.
- Australian Kangaroo 2026 1oz Gold Bullion Coin, Perth Mint. Accessed Invalid Date.
- Products (Krugerrand), Rand Refinery. Accessed Invalid Date.
- 26 U.S.C. 408, Individual retirement accounts (subsection (m), collectibles), U.S. Government Publishing Office (govinfo). Accessed Invalid Date.
- Investments in collectibles in individually directed qualified plan accounts, Internal Revenue Service. Accessed Invalid Date.
- Chapter 113, Gold Futures (NYMEX rulebook), CME Group. Accessed Invalid Date.
- Investor Bulletin: 10 Things to Ask Before Buying Physical Gold, Silver or Other Metals, FINRA and CFTC. Accessed Invalid Date.
This guide is general education, not personalized financial, tax or legal advice. See our financial disclaimer, editorial policy and advertising disclosure.