100g Britannia Platinum Bar

The Royal Mint's 100g Platinum Britannia Bar

The 100g Royal Mint Britannia Platinum Bar combines The Royal Mint's sovereign authority with the Britannia branding that UK investors associate with tax-efficient bullion. Unlike the Britannia coin, this bar format does not carry legal tender status and therefore is not CGT-exempt in the UK. It does, however, offer a lower per-gram premium than buying equivalent weight in Britannia coins.

The Royal Mint entered the platinum bar market relatively recently compared to established Swiss refiners like PAMP and Valcambi. The Britannia bar range leverages the same security and quality infrastructure that produces the UK's coinage, struck at the Mint's facility in Llantrisant, Wales. At 999.5 fineness, the bar meets the standard platinum investment purity and exceeds the thresholds required for tax exemption in Australia, New Zealand, Singapore, and Canada.

For UK buyers, the 100g platinum bar format offers better premium efficiency than purchasing three individual 1 oz pieces. The absolute cost is higher, but the percentage above spot decreases at this weight. The trade-off is reduced flexibility: selling a 100g bar is an all-or-nothing transaction, whereas individual ounces can be sold incrementally.

100g Britannia Platinum Bar Specifications

The bar features the Britannia design that appears across The Royal Mint's bullion range, connecting it visually to the popular Britannia coin series. It is struck (minted) rather than cast, producing a smooth mirror finish with sharp design detail. Each bar is individually serialised and sealed in tamper-evident assay card packaging that includes an integrated certificate of authenticity.

The Royal Mint is one of the world's oldest operating mints, established in 886 AD, and its sovereign status provides strong provenance for secondary market transactions. The Mint is not LBMA-accredited as a standalone refiner in the same way as PAMP or Heraeus, but its sovereign authority and over a thousand years of continuous metallurgical expertise provide equivalent market confidence. Dealers worldwide accept Royal Mint products without requiring independent assay verification.

Tax Position of the 100g Britannia Platinum Bar

Despite carrying the Britannia name, this bar does not share the CGT exemption enjoyed by Britannia coins. The exemption applies only to UK legal tender coins denominated in sterling. Bars have no face value and no legal tender status regardless of their branding.

United Kingdom

The bar carries 20% VAT on purchase and is subject to Capital Gains Tax on disposal at 18-24% above the GBP 3,000 annual allowance. This makes it the least tax-efficient Britannia-branded product for UK investors. The Platinum Britannia coin shares the 20% VAT burden but avoids CGT entirely. For long-term holders expecting significant capital appreciation, three 1oz Platinum Britannia coins (93.3g total) may produce a better after-tax outcome than one 100g bar despite the lower metal content.

United States

The bar qualifies for Precious Metals IRA inclusion at 99.95% purity. Most states exempt investment platinum from sales tax. Capital gains on non-IRA holdings are taxed at the 28% collectibles rate.

Canada

GST/HST exempt at 99.5%+ purity. No distinction between bar brands for tax purposes.

Australia and New Zealand

GST-exempt in both countries (platinum threshold is 99% purity). Australia applies CGT with a 50% discount after 12 months. New Zealand has no CGT.

Singapore and Hong Kong

GST-exempt in Singapore under the IPM scheme (99% purity from qualifying refiners). No taxes of any kind in Hong Kong.

Royal Mint Britannia Bar vs Other 100g Platinum Bars

The Britannia platinum bar competes primarily on brand recognition rather than price advantage. The Royal Mint name carries weight with UK buyers and the bar is widely stocked by British dealers.

The 100g Baird and Co. Platinum Bar offers an alternative UK-refined product, often at a marginally lower premium. Baird holds LBMA accreditation (since 2000) and operates the UK's largest refinery. For buyers whose priority is cost efficiency within a UK-produced platinum bar, Baird may edge out on price.

The 100g Heraeus Platinum Bar represents the dominant European refiner option. Heraeus bars have deep liquidity in Continental European markets and carry premiums comparable to or slightly below the Royal Mint product. For buyers planning eventual resale in European markets, Heraeus may offer better dealer recognition.

The key comparison within The Royal Mint's own range is bar versus coin. The 100g bar contains more platinum than three 1 oz Britannia coins (100g vs 93.3g) and costs less per gram due to lower premiums. But the coins carry CGT exemption and can be sold individually. The break-even depends on the investor's marginal CGT rate and expected gain on disposal.