100 oz Britannia Silver Bar

The 100 oz Britannia Silver Bar from The Royal Mint

The 100 oz Britannia silver bar is produced by The Royal Mint, the official mint of the United Kingdom, with origins dating to 886 AD. It carries the Britannia name and design, the same brand identity used on the Royal Mint's flagship bullion coins. The bar is refined to .999 fine silver and bears the Britannia figure that has appeared on UK coinage since the Roman era.

The Britannia name carries specific significance for UK buyers. Silver Britannia coins are UK legal tender, which grants them CGT exemption on disposal. The 100 oz Britannia bar, however, is not legal tender. It is a bullion bar, not a coin, and does not carry a face value. This distinction matters for UK tax planning: the bar is subject to both 20% VAT on purchase and Capital Gains Tax on any profit at disposal, placing it in the same tax position as any other silver bar rather than sharing the coin's CGT-exempt status.

As a sovereign mint product, the Britannia bar carries the credibility of a government institution. The Royal Mint is one of only a handful of government mints producing silver bars at the 100 oz weight, alongside the Royal Canadian Mint. Most other 100 oz bars come from private refiners (PAMP Suisse, Asahi, Sunshine Minting). The sovereign mint distinction can matter for resale confidence, particularly for buyers who later sell through dealers unfamiliar with private refiner hallmarks.

Britannia 100 oz Silver Bar Specifications

The bar features the iconic Britannia design by Philip Nathan, the same figure that has defined the Britannia coin series since 1987. Each bar carries the stated weight, purity, and Royal Mint hallmark. The .999 purity meets investment-grade requirements for tax-exempt purchase in Canada (99.9%+), Australia (99.9%+), New Zealand (99.9%+), and Singapore (99.9%+), and satisfies the IRS fineness standard for precious metals IRA eligibility (silver 99.9%+).

It is important to note that the .999 purity of the Britannia bar differs from the .9999 purity offered by the Royal Canadian Mint 100 oz bar. Both purities are well above all regulatory thresholds for investment-grade classification, but the RCM product holds the distinction of the highest purity at this weight class. The Britannia bar also does not feature the four anti-counterfeiting measures (latent image, surface animation, micro-text, tincture lines) that appear on Britannia coins from the 2021 issue onward. Those security features are coin-specific and are not applied to the bar range.

Tax Treatment of the 100 oz Britannia Silver Bar

The Britannia silver bar's tax treatment is determined by its classification as a silver bullion bar, not by the Britannia name. The critical distinction for UK buyers is that this bar does not share the CGT exemption that applies to Britannia coins.

• United Kingdom: Subject to 20% VAT on purchase. No VAT exemption exists for silver bars in the UK, regardless of the manufacturer or brand. The bar is also subject to Capital Gains Tax at 18-24% on disposal. The CGT exemption that applies to silver Britannia coins (as UK legal tender) does not extend to bars. UK buyers can avoid VAT by purchasing silver through VAT-free vault storage schemes, but this requires forgoing physical delivery.
• United States: No federal sales tax. Approximately 35 states exempt investment-grade silver. The bar meets IRS purity requirements for precious metals IRA inclusion (99.9%+). Capital gains taxed at the collectibles rate (up to 28% long-term).
• Canada: GST/HST exempt as investment-grade silver (purity exceeds 99.9%). Capital gains at 50% inclusion rate.
• Australia: GST-free (meets 99.9% purity threshold). Capital gains with 50% discount after 12 months.
• New Zealand: GST-exempt (99.9% purity requirement met). No formal capital gains tax.
• Singapore: GST-exempt as IPM (Investment Precious Metal). No capital gains tax.
• Hong Kong: No sales tax, import duty, or capital gains tax.
• South Africa: 15% VAT applies to all silver products.
• European Union: Standard VAT applies at national rates (17-27% depending on country). Some EU countries apply margin scheme taxation to second-hand silver bars, which reduces the effective VAT.

Britannia 100 oz Bar vs Alternative 100 oz Silver Bars

The Britannia 100 oz bar's primary competitor in the sovereign mint category is the Royal Canadian Mint 100 oz bar. Both are government-issued products with global brand recognition. The RCM bar edges ahead on purity (.9999 vs .999) and has a more established track record in the 100 oz bar market, with broader dealer availability and consistently tight buyback spreads. The Britannia bar's advantage is its familiar design for UK buyers and the Royal Mint's reputation as one of the world's oldest minting institutions.

Against private refiner products, the Britannia bar offers the reassurance of sovereign backing. The PAMP Suisse 100 oz bar and Asahi Refining 100 oz bar are both LBMA-accredited and produce identical .999 fine silver, but neither carries government mint status. The practical difference at resale depends on the dealer: most major dealers treat LBMA-accredited refiner bars and sovereign mint bars equally, but smaller or less experienced buyers may place additional confidence in a government mint hallmark.

For UK buyers specifically, the tax comparison with the silver Britannia coin is unavoidable. A 1 oz silver Britannia coin carries the same 20% VAT on purchase but is CGT-exempt on disposal. The 100 oz bar carries VAT and is subject to CGT. This means any profit on the bar faces a second layer of tax that the coin avoids. The bar's lower per-ounce premium compensates for this to a degree, but UK buyers should calculate the breakeven point at which the coin's CGT exemption outweighs the bar's premium savings.

The Sunshine Minting 100 oz bar offers the MintMark SI security feature, a proprietary verification technology not available on the Britannia bar. The Britannia coin series has advanced security features (latent image, surface animation, micro-text, tincture lines) from the 2021 issue onward, but these features do not appear on the bar range.