1/10 oz Britannia Platinum Coin

The 1/10 oz Platinum Britannia

The 1/10 oz Platinum Britannia is the fractional counterpart to the 1 oz Platinum Britannia, struck by The Royal Mint in 999.5 fine platinum. It carries a face value of GBP 10 and is legal tender in the United Kingdom, a status that provides a specific tax advantage: exemption from UK Capital Gains Tax on disposal. This CGT exemption makes the Platinum Britannia the most tax-efficient platinum coin available to UK investors, even at the fractional 1/10 oz size.

The platinum Britannia programme is relatively young, launched in 2018, making it one of the newest entries in the sovereign platinum coin market. The 1/10 oz denomination gives buyers access to platinum at a lower price point than the full ounce, though the premium penalty is steep. Fractional platinum coins carry premiums of 15-30% over spot, reflecting the high per-unit manufacturing costs on a small coin. Those costs are roughly fixed regardless of the coin's metal content, so they hit hardest on the smallest sizes. For UK buyers, the CGT exemption partially offsets this premium penalty on the exit side; a Platinum Britannia held for years that appreciates in value owes no CGT, while a platinum bar of equivalent value would.

The Britannia's reverse design changes annually, which distinguishes it from most sovereign bullion coins that carry a fixed design. From the 2021 issue onward, the coin incorporates four anti-counterfeiting features: a latent image that shifts between a padlock and trident, surface animation created by picosecond laser technology, micro-text reading "DECUS ET TUTAMEN," and heraldic tincture lines on Britannia's shield. These features are visible to the naked eye under changing light angles and represent some of the most advanced security on any bullion coin.

Liquidity for the 1/10 oz Platinum Britannia is strongest in the UK dealer network. Most UK bullion dealers recognise and will buy back Britannias of any denomination. The fractional size is less liquid than the 1 oz, with wider bid-ask spreads. Outside the UK, the Platinum Britannia has a smaller presence than the American Platinum Eagle, though post-2013 Britannias in gold and silver have gained broader international acceptance.

1/10 oz Platinum Britannia Dimensions and Details

The 1/10 oz Platinum Britannia matches the 999.5 purity standard shared by all major sovereign platinum coins, including the 1/10 oz American Platinum Eagle. This is the standard investment-grade fineness for platinum; achieving higher purity (999.9) in platinum is technically difficult and is not attempted by any major mint for bullion products.

The obverse carries the reigning monarch's portrait. Coins struck from 2018 to 2022 feature Queen Elizabeth II (Jody Clark's portrait), and coins from 2023 onward carry King Charles III. The reverse design rotates annually, with each year's issue featuring a different artistic interpretation of the Britannia figure. The four security features introduced in 2021 are integrated into the design and apply across all denominations.

Platinum Britannia Tax Treatment by Country

The Platinum Britannia's UK legal tender status gives it a distinct tax profile that differs from other platinum coins in the UK market. However, outside the UK, it is treated as standard platinum bullion.

• United Kingdom: CGT-exempt on disposal because the coin is UK legal tender denominated in sterling. This exemption applies to all Britannia coins regardless of metal (gold, silver, platinum). Purchase VAT of 20% applies to platinum Britannias, the same as all platinum bullion in the UK. The combination means: expensive to buy (20% VAT), but any profit on sale is entirely tax-free. For UK investors planning to hold platinum long-term, this CGT exemption can offset the upfront VAT cost if the metal appreciates substantially.
• United States: The 999.5 purity meets the IRS threshold for platinum IRA eligibility (99.95%). Post-2013 Britannias meet IRA fineness requirements. Sales tax varies by state. Outside retirement accounts, taxed as a collectible at up to 28%.
• Canada: GST/HST exempt for platinum at 99.5% purity or above.
• Australia: GST-free for platinum at 99% purity or above. Capital gains tax applies with a 50% discount for holdings exceeding 12 months.
• New Zealand: GST-exempt for platinum at 99% purity or above. No capital gains tax.
• Singapore: GST-exempt under the IPM scheme for qualifying platinum coins that are or were legal tender. No capital gains tax.
• Hong Kong: No sales tax, no duties, no capital gains tax.
• European Union: Standard VAT at local rates (17-27%). Platinum does not benefit from the EU Investment Gold Directive.

1/10 oz Platinum Britannia vs the 1/10 oz Platinum Eagle and Full-Ounce Alternatives

The 1/10 oz American Platinum Eagle is the Britannia's closest competitor at this weight. Both are sovereign mint coins at 999.5 purity. The Eagle's advantages are its explicit IRA eligibility (named in statute) and deeper dealer support in the United States. The Britannia's advantages are CGT exemption for UK taxpayers and the Royal Mint's advanced security features introduced from 2021. For UK investors, the CGT exemption is the decisive factor. For US investors, the Eagle's statutory IRA eligibility and broader domestic availability make it the natural choice.

The more fundamental comparison is between the 1/10 oz Platinum Britannia and the full 1 oz Platinum Britannia. Both carry the same CGT exemption and the same 20% VAT in the UK. The difference is premium efficiency: the 1 oz coin carries premiums of 8-15%, while the 1/10 oz carries 15-30%. Buying ten 1/10 oz coins to accumulate a full ounce of platinum costs substantially more than buying a single 1 oz coin. The 1/10 oz format is appropriate for buyers who want platinum exposure at the lowest per-unit cost, or who value divisibility, but it is not an efficient way to build a position in the metal.

Platinum bars, such as the 1 oz Valcambi platinum bar, offer lower premiums still (5-10%), but UK buyers must weigh the bar's CGT liability against the Britannia coin's exemption. For a buyer expecting significant appreciation over a long holding period, the CGT-exempt Britannia can end up cheaper in after-tax terms despite the higher upfront premium.