100 oz Bison Bullion Silver Bar

The 100 oz Bison Bullion Silver Bar

The 100 oz Bison Bullion silver bar contains 100 troy ounces of .999 fine silver, about 3.11 kg of metal in a single piece. The 100 oz format exists for one reason: cost efficiency. Premiums at this weight typically run 2-4% over spot per ounce, the lowest of any standard retail silver bar size, because the fixed costs of manufacturing, assaying, and packaging are spread across a hundred ounces. By comparison, 1 oz bars often carry 8-15% premiums and 10 oz bars 4-8%, so an accumulator building a position of several hundred ounces saves meaningfully by buying at this size.

The trade-offs are equally clear. A 100 oz bar is indivisible: selling part of a position means selling the whole bar, whereas the same silver in 10 oz bars or 1 oz coins can be parcelled out. The buyer pool also narrows at the higher total outlay, and most dealers will weigh, measure, or assay a secondary-market 100 oz bar before buying it. At roughly 6.86 lbs per bar, handling and shipping weight add up quickly across multiples.

Brand recognition matters more at this weight than at smaller sizes. Bars from LBMA-accredited refiners command tighter buyback spreads, while bars from lesser-known producers can face wider discounts or sell at melt value only. Before choosing this bar over an accredited-refiner alternative at a similar price, weigh the purchase saving against the possibility of a larger haircut when you sell.

100 oz Bison Bullion Silver Bar Specifications

The .999 purity is the standard for the 100 oz weight class; the Royal Canadian Mint is the notable exception in producing .9999 fine at this size. Dimensions for 100 oz bars vary by manufacturer but are roughly 140mm x 80mm x 25mm, comparable to a large smartphone in footprint though far heavier. Most bars at this weight are rectangular and stack readily, though cast bars can have irregular surfaces.

There is no standard tube or roll packaging at this weight. 100 oz bars are sold individually, sometimes in protective plastic sleeves or mint-sealed packaging. Counterfeit silver bars do exist, and the 100 oz size is among those targeted, so the usual checks apply: precise weight and dimension measurement, the magnet slide test (silver is diamagnetic), and specific gravity testing. Silver has no tungsten-core problem of the kind that affects gold bars, since tungsten is nearly twice silver's density and a filled bar would be obviously overweight. Store the bar in dry conditions, wrapped or sealed, as silver tarnishes when exposed to sulphur compounds.

Tax on 100 oz Silver Bars by Country

Silver bars do not enjoy the near-universal sales tax exemptions of investment gold, and at a 100 oz bar's price the tax difference between jurisdictions is substantial.

• United States: no federal sales tax; most states exempt bullion, around ten tax it, and a handful apply thresholds (California exempts transactions over $2,000, New York and Massachusetts over $1,000, Florida over $500). A 100 oz bar typically clears these thresholds on its own. Long-term capital gains are taxed at the collectibles rate of up to 28%.
• Canada: silver refined to 99.9%+ purity in bar form is GST/HST-exempt, so a .999 bar qualifies. Gains are taxed at the 50% inclusion rate.
• United Kingdom: new silver bullion carries 20% VAT, and bars have no CGT exemption either, making silver bars the least tax-efficient silver form for UK buyers. Some dealers offer 0% VAT silver only if it remains vaulted outside the UK.
• EU: full national VAT rates on new silver, ranging roughly 17-27% by country.
• Australia: 0% GST at 99.9%+ purity; New Zealand: GST-exempt at 99.9%+ purity, which a .999 bar meets.
• Singapore and Hong Kong: no GST on qualifying silver (Singapore's IPM scheme covers 99.9%+ silver) and no capital gains tax.

For US retirement accounts, IRA-eligible silver must be 99.9%+ purity from accredited refiners, so check the producer's accreditation status before assuming a generic 100 oz bar qualifies.

Bison Bullion vs RCM, Asahi, and Other 100 oz Bars

The 100 oz silver market splits into LBMA-accredited refiner bars and everything else. The Royal Canadian Mint bar is the benchmark at this weight: .9999 fine rather than the usual .999, serialised, currently in production, and LBMA Good Delivery listed. Asahi Refining, successor to Johnson Matthey's precious metals business, produces a widely distributed current bar. Discontinued Johnson Matthey and Engelhard bars from the 1980s trade with a collector premium on the secondary market. Generic producers such as Sunshine Minting, Republic Metals, and Ohio Precious Metals round out the field, IRA-eligible when ISO 9001 certified.

Against that field, the Bison Bullion bar competes on price. The silver content is the same .999 fine 100 troy ounces as most rivals, so any saving at purchase is a genuine reduction in cost per ounce. The catch comes at resale: LBMA-accredited refiner bars command tighter buyback spreads, typically 1-3% below spot from major dealers, while bars from lesser-known producers can face wider discounts and a verification step before a dealer will buy.

The other comparison worth making is downward in weight. A 10 oz silver bar carries a 4-8% premium against the 100 oz bar's 2-4%, but ten of them can be sold one at a time. Most of the premium saving in silver bars happens between 1 oz and 10 oz; the additional step to 100 oz saves less and costs flexibility, which is why the 10 oz size is widely considered the most popular silver bar format.