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About the 1/2 oz Perth Mint Koala Platinum Coin
The 1/2 oz Platinum Koala from Perth Mint
The 1/2 oz Platinum Koala contains 15.5518 grams of 999.5 fine platinum, struck with a face value of A$50 as Australian legal tender. It was part of the Perth Mint's pioneering Platinum Koala programme that ran from 1988 to 2000. The series was the first from any national mint to offer platinum bullion coins, predating the American Platinum Eagle by nearly a decade.
At the 1/2 oz weight, this coin sits in the most cost-efficient part of the fractional range. The premium per ounce is meaningfully lower than the 1/10 oz and 1/4 oz sizes, and the capital outlay is half that of the 1 oz Platinum Koala. For buyers seeking a meaningful amount of platinum from a historically significant and finite series, the 1/2 oz balances value and accessibility.
Each year of the twelve-year programme featured a different reverse design showing koalas in Australian bush settings. The series processed over 18 tonnes of platinum during its run, with 85% sold internationally. The 2000 final year saw dramatically low mintages across all denominations, making late-date coins particularly scarce. All coins carry the "P" mintmark identifying the Perth Mint and are backed by the Government of Western Australia.
1/2 oz Platinum Koala Specifications
| Attribute | Detail |
|---|---|
| Metal | Platinum |
| Purity | .9995 (999.5 fine) |
| Weight | 1/2 troy oz (15.5518 g) |
| Diameter | 25.1 mm |
| Thickness | 2.03 mm |
| Face Value | A$50 |
| Edge | Reeded |
| Mint | Perth Mint |
| Years Struck | 1988 to 2000 |
| Obverse | Queen Elizabeth II (effigy varies by year) |
| Reverse | Koala in natural setting (new design each year) |
| Mintmark | "P" (Perth Mint) |
The 1/2 oz Koala is slightly larger than its Maple Leaf equivalent (25.1 mm vs 25.0 mm diameter) but marginally thinner (2.03 mm vs 2.23 mm). Perth Mint supplied individual coins in protective capsules during the original production run. The reeded edge and the fine detail of the annual koala engraving provide visual authentication, though the coin predates the security technologies (micro-engraving, DNA verification) found on newer series.
Tax Treatment of the 1/2 oz Platinum Koala
Tax treatment is determined by the buyer's jurisdiction, not the coin's weight. The 1/2 oz Koala follows the same rules as all Platinum Koala denominations.
- Australia: GST-free as investment-grade platinum. Subject to CGT with a 50% discount after 12 months.
- United States: IRA-eligible (Platinum Koala is specifically listed under IRS Section 408(m)(3)(A)). Capital gains at up to 28%. Sales tax is state-dependent.
- United Kingdom: 20% VAT on purchase. Subject to CGT on disposal. UK buyers seeking tax-efficient platinum should consider the 1 oz Platinum Britannia, which is CGT-exempt (though no 1/2 oz platinum Britannia is produced).
- Canada: GST/HST exempt at 99.5%+ purity. Capital gains at 50% inclusion.
- New Zealand: GST-exempt at 99%+ purity. No CGT.
- Singapore: GST-exempt as IPM. No CGT.
- Hong Kong: No taxes or duties.
- South Africa: 15% VAT applies.
1/2 oz Platinum Koala vs Other Half-Ounce Platinum Coins
The 1/2 oz Platinum Maple Leaf is the most natural comparison. Both coins carry 999.5 fineness and date from the same era (Maple Leaf 1988, Koala 1988). The Koala's annual design changes give each year-date a distinct identity, and its closed production run (ended 2000) makes it a collector piece as well as bullion. The Maple Leaf offers the RCM's Bullion DNA authentication on post-2014 coins and a fixed, instantly recognisable design. The Maple Leaf also has better availability for buyers who want newly minted coins, as the RCM periodically reissues fractional platinum.
The American Platinum Eagle 1/2 oz (US$50 face value) dominates the North American market at this weight. It has the strongest resale liquidity of any 1/2 oz platinum coin in the US, though its premiums tend to be slightly higher than the Maple Leaf's. For US IRA investors, all three coins (Eagle, Maple, Koala) are eligible.
Stepping down in weight within the Koala range, the 1/4 oz Platinum Koala halves the outlay but significantly increases the premium per ounce. Stepping up to the 1 oz Platinum Koala reduces the premium per ounce further but doubles the capital commitment. The 1/2 oz is the largest fractional size that retains meaningful divisibility, and for a closed series like the Koala, having multiple smaller coins rather than one large one provides more flexibility when selling into a secondary market where platinum demand can be sporadic.
1/2 oz Perth Mint Koala Platinum Coin: frequently asked questions
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The cheapest 1/2 oz Perth Mint Platinum Koala is $882.60, around 5.1% over the $1,680.00 platinum spot price. The coin contains 1/2 oz of 999.5 fine platinum, so its metal value tracks the platinum price directly. Premiums on fractional coins are typically higher per ounce than on the 1oz size.
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The Perth Mint Platinum Koala is an Australian platinum bullion coin series that ran from 1988 to 2000. Struck in 999.5 fine platinum and issued as Australian legal tender, each annual edition featured a different koala reverse design. The series was discontinued after the 2000 edition due to low demand. It should not be confused with the Silver Koala, which is still produced today in 1oz and 1kg sizes.
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A 1/2 troy ounce platinum coin contains 1/2 oz of platinum. One troy ounce equals 31.1035g, so a half-ounce coin holds 15.552g. The Platinum Koala is struck to 999.5 fine purity, meaning virtually all of that weight is pure platinum.