100g B.H. Mayer Silver Bar

A Metric Silver Bar in the European Tradition

The 100g B.H. Mayer silver bar contains 100 grams of 999.9 fine silver, which works out to 3.2151 troy ounces. The 100 gram format occupies a practical middle ground in silver: at roughly $100 of metal value at current prices, it is an affordable metric entry point, large enough to carry a sensible premium yet small enough to buy regularly and sell in increments.

In premium terms the 100g silver bar behaves much like the 10 oz bar, its troy-ounce near-equivalent, since the two are similar in weight (3.22 oz versus 10 oz puts them in the same broad band of the bar market where per-ounce costs have already fallen well below 1 oz pieces). Bars are the cheapest silver format overall, with 1 oz bars at roughly 8 to 15% over spot dropping toward 3 to 6% as sizes approach the kilo, so a 100g bar captures a meaningful part of that efficiency curve without the outlay of a 1 kilo silver bar.

The metric denomination is the giveaway about its natural market: 100g is a standard trading size in European bullion markets, accepted by all major European dealers, while the US market leans toward troy-ounce sizes. The .9999 fineness is a step above the .999 standard for silver bars, a quality signal that also comfortably clears every purity-based tax threshold.

100g Silver Bar Specifications

.9999 fineness exceeds the .999 standard used for most silver bars. The actual difference in silver content is 0.09%, so the significance is regulatory and reputational rather than financial: four-nines silver clears the strictest purity tests applied anywhere, including the 99.9% thresholds used for GST exemption in Australia, New Zealand, and Singapore and for US IRA eligibility.

A 100g silver bar is physically larger than its gold counterpart because of silver's lower density, but it remains very manageable, and bars at this size stack and store easily. Silver tarnishes when exposed to sulphur compounds, so store the bar in dry conditions and keep it in its original sealed packaging where possible; sealed bars resell better than loose ones. Authentication follows the standard silver checks: precise weight, dimension verification, and the magnet slide test that exploits silver's diamagnetic properties. There is no tungsten-core risk with silver, as tungsten is nearly twice as dense and any substitution would be obviously overweight.

Tax on 100g Silver Bars by Country

Silver bars are taxed on purity rather than format, and at 999.9 fine this bar qualifies for every purity-based exemption going. The dividing line is geographic.

• UK: 20% VAT on purchase and CGT on disposal, with no legal tender exemption available to bars. The least efficient market for this product.
• EU: Full standard VAT at national rates, from 17% in Luxembourg to 27% in Hungary, with Germany at 19%. New bars from refiners attract full VAT; the German margin scheme covers pre-owned silver coins, not new bars.
• US: No federal sales tax. Most states exempt bullion; a minority tax it, and a few apply thresholds (such as $1,000 in New York and Massachusetts) that a single 100g silver bar will not meet on its own. Long-term capital gains are taxed at the 28% collectibles rate.
• Canada: GST/HST exempt, since the purity exceeds the 99.9% federal threshold.
• Australia and New Zealand: GST-free as investment-grade silver at 99.9%+ purity.
• Singapore: GST-exempt as an Investment Precious Metal; no capital gains tax.
• Hong Kong: No sales tax, no duty, no capital gains tax.

The practical conclusion mirrors the rest of the silver market: this bar makes most financial sense in North America, Oceania, and Asia, while UK and EU buyers surrender a fifth or more of the purchase price to VAT before the metal earns anything.

100g vs 10 oz Bars, Coins, and Smaller Sizes

The closest rival is the 10oz silver bar. The two sit near each other on the premium curve, but the 10 oz holds three times the metal and is the more standard denomination in North America, where it is widely considered the most popular silver bar size. The 100g answers with a lower unit cost and a metric weight that European and Asian dealers handle natively. Which wins depends mostly on where you expect to sell.

Against 1oz silver bars, the 100g is the more efficient buy: small bars carry 8 to 15% premiums because fabrication costs dominate at low weights, and consolidating three-plus ounces into one bar sheds much of that overhead. The 1 oz format counters with maximum divisibility, the ability to sell a single ounce at a time.

Against silver coins, the comparison is the familiar bars-versus-coins trade. Government coins run 15 to 25% over spot in 2026 conditions and recover more of that premium at resale, along with sovereign mint security features and better liquidity. The bar simply delivers more silver per unit of money up front. For a UK buyer the coin case is stronger still, since silver Britannias add CGT exemption; everywhere else, the 100g bar's case rests on metal-per-dollar, where it beats any coin at a comparable outlay.