This is to reduce the environmental impact and save on costs.
On all current coins the Queen's portrait faces the right, but Charles looks to the left because of a tradition that means the way the monarch faces must change with each new successor.
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The most recent image of the Queen on coins is the fifth portrait, designed by Jody Clark.
It was issued in 2015 and shows a side profile of the Queen wearing a crown and drop earrings.
Meanwhile, on British notes, a similar image of the Queen has been in place since the 90s.
New coins and notes were made when the Queen’s father George VI, the former King of England, passed too.
When will coins and notes with the Queen’s face on end?
The current circulating designs will be discontinued and a new design that represents the new head of state will replace them.
But it won’t all happen straight away.
Any coins or notes you have on you now will still be legal tender for a while yet.
We don’t know exactly when each design will be removed from circulation.
There are around 27 billion coins currently circulating in the UK bearing the effigy of the Queen.
These will be replaced over time as they become damaged or worn, and to meet demand for additional coins.
When the Queen came to power though, coins with her father’s image stayed in circulation for almost 20 years after his death.
But they were removed when decimalisation was introduced in 1971.
Production of coins won’t abruptly stop either.
The Royal Mint manufactures between three million and four million coins a day, and it’s likely to continue with the production of the current portrait and design until the end of the year at least.
That means we won’t see any new styles crop up in change until 2024. The same goes for notes.
Notes went through a major style change when they changed from paper to plastic - and the slow process means some paper copies are still legal tender even now.
But bank notes are updated approximately every 15 years anyway, so it won’t be long before current designs disappear altogether.
What kind of value will current coins and notes hold?
As the currency with the Queen on will eventually cease to be produced altogether, they’ll be harder to come across.
That means collectors will be more desperate to snap up copies as they become rarer over time, with the new designs taking the lead in popularity and production.
Rarer coins and notes are often more valuable, and can sometimes sell for hundreds of pounds more than face value at auction - if the right bidder is interested.