Bullion Coin

The word bullion coin traces back to the Old French bouillon ("melting pot"), and the object it names is a coin minted by a state or state-licensed mint whose price is driven above all by the prevailing precious-metal spot price. What sets it apart from a numismatic collector coin is its emphasis: not condition or scarcity, but sheer metal value. Struck in gold, silver, platinum and palladium, bullion coins rank among the most heavily traded forms of physical investment anywhere.

What Defines a Bullion Coin

Four traits are common to bullion coins:

1. An official mint mark — each bears a nominal face value (the Vienna Philharmonic's €100, for instance) that sits far beneath its metal worth and exists purely to confer legal-tender status.
2. A guaranteed fineness and fine weight — every strike locks in a precise amount of pure metal, most often 1 troy ounce (31.103 g), though ½ oz, ¼ oz and 1/10 oz sizes exist as well, along with 1 kg and 1 g formats.
3. A market-linked price — the dealer quote comes to spot plus a premium (agio) that offsets minting, distribution and dealer expenses.
4. Deep liquidity — dealers, banks and mints stand ready to buy back internationally recognised bullion coins at any time.

Collector coins (numismatic, proof-quality issues) part company with bullion coins on two counts: bullion coins are struck in enormous numbers (millions annually) and carry no collector's mark-up. Bars, meanwhile, lack any state mint mark or face value, which in certain jurisdictions denies them the tax breaks coins enjoy.

The Leading Bullion Coins at a Glance

A word on the Krugerrand, which stands apart from the field: as the world's first modern gold investment coin it holds exactly 1 troy ounce of gold, yet it is struck from a 22-carat alloy (916.7 ‰). That is why it tips the scales at 33.93 g gross rather than the usual 31.103 g. The copper in the alloy hardens the coin against scratching.

How the Price Is Built Up

A bullion coin's purchase price follows this pattern:

Purchase Price = Spot (per troy ounce) × Fine Weight + Premium (€ or %)

That premium shifts with the coin, its denomination and market conditions. Fractional sizes (1/10 oz) command a steeper premium than the standard 1 oz piece, because minting costs per gram of pure metal climb as the coin gets smaller. When crisis strikes or supply tightens, gold premiums can briefly reach 10–15% while silver premiums vault past 50%.

Reach for the gold calculator to read off a bullion coin's current material value in a moment; the melt value calculator comes in handy on top of that for coins whose fineness departs from 999.9 ‰, the Krugerrand being the obvious example.

Maltese Tax Treatment

Not investment or tax advice — the following is general factual information.

Gold coins that satisfy Malta's investment-gold conditions (fineness ≥ 900 ‰, minted after 1800, legal tender) escape VAT under the EU VAT Directive 2006/112/EC. Silver and platinum coins, by contrast, carry Malta's standard 18% VAT rate, which pushes their effective premium well above that of gold coins.

Profit from selling physical bullion coins held as private property is not taxed in Malta, because the country levies no capital gains tax on the disposal of movable private assets such as coins. (Germany, on the other hand, applies a one-year speculative holding period under § 23 EStG.) Individual situations should be checked with a tax adviser.

Verifying Authenticity

Because bullion coins pack high-value industrial metal into a compact form, forgeries are out there. Dependable checks include:

• Weight and dimensions: every coin has a tightly specified gross weight and diameter. The coin weight checker sets actual figures against the targets.
• Ping test: an authentic gold coin gives off a distinct, clear ring when struck.
• Density measurement: gold's density of 19.32 g/cm³ is nearly matched by tungsten fakes (19.25 g/cm³), but a careful density check (Archimedes' principle) uncovers them.
• Sigma Metalytics / XRF: contactless readings of electrical resistance or X-ray fluorescence deliver the most trustworthy verdict.

Storage and Safekeeping

Keep bullion coins in their original capsules or coin tubes to fend off scratches — while a scratch does not dent the metal value, it can trim the resale price at some dealers. Larger holdings are best consigned to a bank safe-deposit box or a certified bonded warehouse.

In Brief

A bullion coin marries a state guarantee of fineness and fine weight with the freedom to sell at the day's price whenever you choose. For anyone buying physical precious metals, the 1 oz bullion coin is the most liquid and most easily authenticated standard product on the global market.