If you still have a few of the old £1 coins in your purse or wallet, there's no need to despair: you can still spend, exchange, donate or deposit them.
Here’s all you need to know.
Spend in store
A number of major retailers have decided to extend their own £1 deadline to make life easier on shoppers. Here are the main ones you should know about:
You have until the end of October to spend your round pounds at Aldi.
Iceland is also accepting old £1 coins until the end of October.
Yup, you’ve guessed it: Poundland is taking old £1 coins until the end of October too.
“We are the official home of the pound, so it’s a no-brainer that we offer all Brits the opportunity to spend their hard-earned round pounds for longer,” said Poundland managing director, Barry Williams.
Tesco shoppers need to be snappier if they want to spend their coins – its deadline is Sunday 22 October.
Paying for stocking fillers needn’t be an issue this Christmas as toy shop The Entertainer has announced that it will be taking round pounds right up until 31 December.
Katie Gritt, spokesperson for The Entertainer, said: “We wanted to extend the time period for accepting old pound coins to help communities in the run-up to Christmas when every penny counts!
"There is plenty of time to dig them out and make use of them.”
If you don’t fancy spending your cash in a shop, there are other options.
You can exchange your old coins for new £1 at most banks and building societies, although some might only do the swap if you have an account with them.
Give it away
Charities are asking people to donate their old pounds. Some have even launched campaigns to help people offload the coins.
BBC Children in Need is running a Round Pound Countdown before the charity’s appeal day on 17 November.
Epilepsy Action is asking people to ‘give their last pound to fight epilepsy’ as part of its Pound for Pound campaign.
In the spirit of saving endangered animals, wildlife charity Born Free is appealing for people to donate their pounds after they ‘go extinct’.
Meanwhile, Rainbow Trust Children's Charity is simply asking people for their ‘good old pounds’.
Take it to the Post Office
You can take round pounds to the Post Office and deposit them in any bank until further notice. Unfortunately, you can’t do a straight switch for new coins.
There's also the option of donating old coinage to Children in Need through the Post Office.