The sovereign and the Britannia

Two coins, and why it is these two

Spend an afternoon reading about gold in Britain and two names arrive before any others. One is a small coin, a little larger than a penny, struck on and off since 1817, two years after Waterloo, which once circulated as money across a good part of the world. The other is broader than a two pound coin, was designed within living memory, and exists for a single purpose: to hold gold.

They are the sovereign and the Britannia. Between them they account for most of the gold coins a British buyer is ever offered, and that is not an accident of fashion. Both are struck by the Royal Mint. Both are United Kingdom legal tender, meaning they are money issued under the authority of the Crown, which is the quiet structural fact underneath the way they are treated for tax. And both are recognised well beyond these islands, which matters on the day you come to sell.

This lesson introduces them as objects rather than as products: where they came from, what is on them, how they sit in the hand, and what each is practically good for. Weights and fineness you met in Understanding Gold, so the arithmetic appears here only in passing. Tax runs the other way: the face values and the legal tender status set out below are what the next two lessons, on Capital Gains Tax and on VAT, then build on, so meeting the coins first is the point of putting this lesson at the front of the course.

The sovereign: money that outlived its own currency

The sovereign as you would recognise it dates from 1817. Britain had just come through two decades of war with France, the circulating coinage was worn and clipped, and the Great Recoinage of 1816 set out to put it right. The new one pound gold coin that followed borrowed its name from a much older Tudor piece and became the workhorse of British money.

Its reverse, the side without the monarch's head, carries one of the most reproduced designs in the history of coinage: Saint George on horseback, sword raised, the dragon beneath him. It was cut by Benedetto Pistrucci, an Italian gem engraver working in London, and it has appeared on sovereigns for more than two centuries, with occasional years given over to heraldic shields or to designs marking an anniversary.

For most of the nineteenth century and into the twentieth the sovereign was simply money. It was struck in London and at branch mints established across the Empire, in Australia, Canada, India and South Africa, so that gold could be struck into coin closer to where it was mined or where the coins were needed. The First World War ended its working life as everyday currency in Britain. Striking for the home market resumed in 1957, and from that point the sovereign was made for people who wanted to own gold rather than for people buying groceries.

It is not one coin but a family. The half sovereign is the long established smaller sibling. The quarter sovereign is a modern addition. The double sovereign and the five pound coin, sometimes called the quintuple sovereign, are the larger pieces, the five pound being a genuinely substantial object with real weight in the palm. All of them are struck in the same 22 carat gold, in proportion to their size. The full sovereign carries a face value of one pound, and the other members of the family are denominated in proportion to it. That figure is the coin's denomination as money rather than a statement about the value of the gold in it, and it is the detail the tax lessons that follow turn on.

The Britannia: a coin designed for the purpose

The Britannia is younger, and its origins are entirely different. It was launched in 1987, at a point when investors around the world were buying one ounce gold coins and Britain had no modern coin of that kind to offer. The Royal Mint made one.

The reverse design came from Philip Nathan: Britannia standing, trident in hand, shield at her side, her cloak caught by the wind. The figure herself is far older than the coin, having appeared on British copper coinage since the reign of Charles II and on Roman coins long before that.

The one ounce Britannia has always contained a full troy ounce of gold, but the metal around that gold has changed. From 1987 until 2012 the coin was struck in 22 carat gold, alloyed for hardness, which is why the whole coin weighed more than the ounce of pure gold it carried, in the way the weights and fineness lesson set out. From 2013 the Royal Mint moved the Britannia to 999.9 fine gold, so the coin is now essentially pure. This is worth knowing when you look at older Britannias: a coin from the 1990s and a current one hold the same ounce of gold in different dress.

The one ounce coin carries a face value of one hundred pounds. That figure is nominal and has nothing to do with what the gold is worth; it exists because the coin is legal tender. Fractional sizes are issued alongside it, in a half ounce, a quarter ounce, a tenth of an ounce and, in recent years, a twentieth, each with its own face value scaled to size.

From 2021 the Royal Mint worked a set of visible security features into the surface of the bullion Britannia, the everyday bullion coin issued for gold buyers rather than the proof versions made for collectors. They include a background of fine radial lines that appear to move as the coin is tilted, a latent image that switches between two symbols depending on the viewing angle, and micro-engraved lettering too small to read without magnification. Together they make the coin awkward to copy convincingly and quick to check.

The head on the other side

The obverse, the side carrying the monarch, is where both coins record time passing. A portrait is not chosen once and kept; it is periodically replaced, and each version dates the coins struck under it.

The reign of Elizabeth II produced five official coinage portraits, by Mary Gillick, Arnold Machin, Raphael Maklouf, Ian Rank-Broadley and Jody Clark. From 2022 the portrait of Charles III by Martin Jennings began to appear. British practice has each monarch face the opposite way to the one before, so Charles III faces left where Elizabeth II faced right, a small detail that lets you date a coin across a room.

What does a change of monarch mean in practice? For a coin held for its gold, very little: the metal is unaffected, and both reigns trade side by side. What it does give you is legibility. A run of sovereigns can be read as a run of reigns, and first year issues under a new portrait tend to draw particular attention from collectors, which is a separate matter from gold content and belongs to the Graded Gold Coins lesson on mintage, rarity and premium.

Choosing between them

Set side by side, the two coins are doing different jobs.

The difference that matters most day to day is the size of the step. A sovereign holds a little under a quarter of a troy ounce of gold, so a holding built from sovereigns moves in smaller increments, both when you buy and when you sell. If you expect to release part of a holding at some point rather than all of it at once, that divisibility is genuinely useful. A Britannia concentrates the same gold into fewer coins, which means fewer items to store, count, insure and check.

The audiences differ accordingly. Sovereigns tend to suit people who like buying steadily over time, who value the history, and who want the flexibility of a small unit; they have a deep secondary market in the United Kingdom and abroad. Britannias tend to suit people who want a modern, internationally recognised one ounce coin at the highest fineness, with visible security features on recent issues.

Neither coin is better than the other. They are two ways of holding the same metal, and many people end up with both; how a holding is put together across the different sizes is a question for the Tax and the Markets lesson on building a holding. What comes next is the other half of why these two coins are the ones a UK buyer meets: their legal tender status, and what it means for Capital Gains Tax and for VAT.

Remember that gold investing in the United Kingdom is not regulated by the Financial Conduct Authority, that there is no FSCS protection and no access to the Financial Ombudsman Service, and that the value of gold can fall as well as rise. Nothing here is financial or tax advice. Tax treatment depends on your individual circumstances and can change, so take professional advice before acting on any of it.