Britannia Platinum

The Platinum Britannia: The Royal Mint's CGT-Exempt Platinum Coin

The Platinum Britannia was introduced in 2018, making it one of the newest sovereign platinum bullion coins alongside the Australian Kangaroo (also 2018) and the Austrian Philharmonic (2016). It is struck in 999.5 fine platinum, the universal standard for platinum bullion, and carries a GBP 100 face value as legal tender of the United Kingdom. That legal tender status is the coin's most significant advantage: it makes the Platinum Britannia CGT-exempt for UK residents, the only platinum coin with this benefit.

The platinum bullion market is substantially smaller than gold or silver. Total platinum investment demand was 702,000 ounces in 2024, roughly 8.5% of total platinum demand. The metal's primary uses are automotive catalytic converters (38% of demand) and industrial applications (30%), with jewellery at 24%. This industrial demand profile gives platinum different price dynamics from gold, which is driven primarily by investment and central bank purchasing.

For UK buyers specifically, the Platinum Britannia sits in an unusual position. Platinum attracts 20% VAT on purchase (unlike gold, which is VAT-exempt). Combined with platinum's inherently higher premiums over spot (5-12% for 1 oz sovereign coins, compared to 2-5% for gold equivalents), a UK buyer faces roughly 25-30% above spot on a delivered Platinum Britannia. The CGT exemption on sale partially offsets this on the exit side, but the entry cost is high. VAT-free vault storage, offered by several UK dealers, is the main mitigation strategy for buyers wanting to avoid the 20% purchase tax.

Platinum's density (21.45 g/cm3) makes it the densest of the three main bullion metals, denser even than gold (19.3 g/cm3). A 1 oz Platinum Britannia is therefore slightly more compact than its gold equivalent at the same weight. The metal does not tarnish under normal conditions and requires no special storage precautions beyond basic security.

Platinum Britannia Denominations and Dimensions

Edge type is milled (reeded) on both sizes. The 999.5 fineness (99.95% pure platinum) is the universal standard across all sovereign platinum bullion coins, from the Platinum Maple Leaf to the Platinum Philharmonic. Unlike gold, where 22-karat (916.7) and 24-karat (999.9) variants exist, virtually all platinum bullion is struck at 999.5. Achieving higher purities in platinum is extremely difficult due to the metal's refining characteristics and its 1,768 degC melting point (compared to 1,064 degC for gold).

The 1/10 oz fractional carries a GBP 10 face value and is one of the more affordable entry points into platinum ownership, though fractional platinum coins typically carry premiums of 15-30% over spot, making them less cost-efficient per ounce of metal than the full 1 oz coin.

Security Features

From the 2021 issue onward, all Britannia coins (gold, silver, and platinum) carry four anti-counterfeiting measures that The Royal Mint describes as making it "the world's most visually secure bullion coin." These are a latent image that shifts between a padlock and a trident when the coin is tilted, a surface animation created by picosecond laser engraving at submicron scale, micro-text reading DECUS ET TUTAMEN ("an ornament and a safeguard") encircling Britannia, and tincture lines on the shield using a heraldic technique for depicting colours through line patterns on metal. All four are visible to the naked eye by rotating the coin in light.

Platinum Britannia Tax Treatment by Country

The Platinum Britannia's tax position varies dramatically by jurisdiction. In the UK, it offers a rare combination: CGT exemption (due to legal tender status) offset by 20% VAT on purchase. In most other countries, platinum receives treatment similar to other precious metals without the UK-specific CGT advantage.

United Kingdom

Platinum is not classified as investment gold, so it attracts 20% VAT on purchase. This applies to all platinum products: coins, bars, and rounds. The Platinum Britannia's legal tender status grants it CGT exemption on disposal, because sterling currency is not a chargeable asset. This makes it the only platinum coin that is CGT-free for UK residents. The annual CGT allowance is currently GBP 3,000. For buyers who want to avoid the VAT, some dealers offer VAT-free vault storage where the platinum remains in a bonded warehouse outside free circulation.

The Platinum Britannia is SIPP-eligible (Self-Invested Personal Pension). Gold bullion qualifies for SIPP inclusion, and the Britannia's legal tender status extends this to the platinum version. Tax relief applies at the investor's marginal rate (up to 45%), and gains within the SIPP are also sheltered.

United States

Platinum Britannias at 999.5 fineness meet the IRS requirement for precious metals IRAs (platinum must be 99.95% or higher). They must be held by an IRS-approved custodian. Capital gains are taxed as collectibles at a maximum 28% federal rate. Most states exempt investment platinum from sales tax (the same exemption that covers gold and silver).

Canada

Platinum bullion at 99.5% purity or higher is GST/HST-exempt. The Platinum Britannia's 999.5 fineness qualifies. Capital gains are subject to the 50% inclusion rate. Physical platinum is not eligible for RRSP or TFSA accounts.

Australia

Platinum at 99% purity or higher is GST-free when in investment form. The 999.5 fineness exceeds this threshold. Capital gains apply on disposal, with a 50% discount for holdings over 12 months. Note that Australia's purity threshold for platinum (99%) is lower than for gold (99.5%) or silver (99.9%).

Other Jurisdictions

• New Zealand: Platinum at 99% purity or higher is GST-exempt. No capital gains tax applies.
• Singapore: Investment Precious Metals (IPM) GST exemption covers platinum at 99% purity or higher from LPPM-accredited refiners or as legal tender coins. No CGT.
• Hong Kong: No sales tax, no import duty, no CGT on platinum.
• South Africa: Platinum bullion attracts 15% VAT. South Africa does not mint a platinum Krugerrand, and there is no legal tender coin exemption for platinum comparable to the gold Krugerrand's zero-rating.
• European Union: Platinum is subject to standard VAT rates (17-27% depending on the country). There is no investment platinum directive equivalent to the investment gold directive. Some dealers apply the margin scheme on secondary-market coins.

The Britannia in Platinum: A Recent Addition to a Long Lineage

The Britannia name carries a lineage that stretches back to 1987, when The Royal Mint launched its first gold bullion coin to compete with the Krugerrand, Maple Leaf, and American Eagle. Silver followed in 1997. The platinum version arrived two decades later in 2018, part of a broader push by sovereign mints to offer platinum bullion. The Austrian Mint's Philharmonic had entered the platinum market in 2016, and the Perth Mint's Kangaroo joined in 2018 alongside the Britannia.

The Britannia's design has a longer history than any of its competitors. The figure of Britannia, the female personification of Britain, has appeared on British coinage since Roman times. The modern iteration was first designed by Philip Nathan for the 1987 gold launch, showing a standing Britannia with trident and shield. The reverse design changes annually, a distinctive feature of the series that adds mild collectibility. Notable designers have included Christopher Le Brun (2007), Suzie Zamit (2010), and Jody Clark (2014). The 2021 redesign by Philip Nathan introduced the four-feature security suite that remains the current standard.

The obverse transitioned from Queen Elizabeth II (various portraits by different artists from 1987 to 2022) to King Charles III from 2023 onward. The gold Britannia's purity was upgraded from 22 carat (916.7) to 24 carat (999.9) in 2013, bringing it in line with the Maple Leaf and Philharmonic. Pre-2013 and post-2013 gold Britannias contain identical amounts of pure gold per denomination; the older coins simply weigh more due to the copper alloy.

The platinum version inherited this mature design and security framework rather than starting from scratch. It also inherited the legal tender status that provides CGT exemption, a feature that no other platinum coin can match for UK investors. The decision to offer platinum reflected growing investor interest in the metal's unusual supply dynamics: annual mine production of roughly 5,800 koz (180 tonnes) is concentrated in South Africa (72%) and Russia (12%), creating supply-side risks that differentiate platinum from gold and silver.

Platinum Britannia vs Maple Leaf, Eagle, Kangaroo, and Philharmonic

Five sovereign mints currently produce major platinum bullion coins, all at the same 999.5 fineness. The practical differences come down to tax treatment, security features, market recognition, and availability.

The Platinum Maple Leaf from the Royal Canadian Mint (1988) is the oldest continuously minted platinum coin and the most competitively priced in most markets. It carries C$50 face value, has Bullion DNA anti-counterfeiting technology for individual coin-level verification, and benefits from Canada's GST/HST exemption on platinum at 99.5% purity. In the Canadian market, the Maple Leaf is the default choice. It lacks the Britannia's UK CGT exemption but has broader global liquidity.

The American Platinum Eagle from the US Mint (1997) carries a $100 USD face value and dominates the North American market. It is specifically exempt from certain IRS purity requirements by Congressional legislation (though at 999.5, the purity is not an issue). The Eagle has the deepest secondary market for platinum coins in the United States and the strongest dealer buyback support. Premiums tend to be slightly higher than the Britannia or Maple Leaf.

The Platinum Kangaroo from the Perth Mint (2018) carries A$100 face value and changes its reverse design annually, adding mild numismatic interest. It has strong distribution in the Asia-Pacific region. The Perth Mint's micro-laser engraved security mark is less comprehensive than the Britannia's four-feature suite or the Maple Leaf's Bullion DNA system. Australia's GST exemption applies at the lower 99% purity threshold.

The Platinum Philharmonic from the Austrian Mint (2016) carries a EUR 100 face value and features the Vienna Philharmonic Orchestra's instruments. It has no dedicated anti-counterfeiting technology beyond its detailed design. The Philharmonic typically trades at competitive premiums in European markets, and it benefits from strong distribution in Germany, Austria, and Japan. It is not CGT-exempt in the UK (not UK legal tender). Gold Philharmonics are VAT-exempt across the EU under the investment gold directive, but the platinum version is subject to standard VAT rates.

For UK buyers, the Britannia's CGT exemption is the decisive differentiator. No other platinum coin offers this. For US buyers, the Eagle or Maple Leaf will typically offer better liquidity and competitive pricing. For Australian buyers, the Kangaroo or Platinum Koala are the natural domestic options.