Buyers have the weekend to spend their old round Â£1 coins before they officially retired, but many shops go on ok.
Companies can refuse to take from Monday, when it will no longer be legal tender.
It is estimated that up to 450 million of these coins are still in public hands in spite of the new 12-sided coin entering circulation in the month of March.
Some supermarkets and other stores said that they would give to buyers of grace.
The most recent is the Actor of the chain of toy stores, said it would continue to accept the round Â£1 coins until Christmas.
The coins from the back of the sofa?
With the deadline to use the old Â£1 coin a few days away, here are some of the places to look for them:
Pockets of the layer(s) that you wore last winter
Down the back of the sofa
10 places to find his old Â£1 coins
Some shoppers were angered that the stores have continued to the round of pounds as on the change of the deadline.
Consumers and businesses can still bank these coins beyond the night of the Sunday of the deadline.
Martin Kearsley, banking services director of the Post Office, said: “Thanks to an agreement with all the united kingdom high Street banks, all over the world can deposit old pound coins in the High Street of the bank account in your local Post Office.”
Some other services of payment might not be ready for the deadline.
The British Parking Association has said that he is sure that most of the parking lots are ready or will be ready to accept the new Â£1 coin, but the Automatic vending Association said that he believed that all of the equipment of property of its members were now accepting the new currency.
The round Â£1 coins was launched on 21 April 1983 to replace the Â£1 notes. The Royal mint has produced more than two million round pound coins from that time.The new Â£1 coin: Vital statistics
Thickness: 2.8 mm – thinner old coin
Weight: 8.75 g – less than the old coin
Diameter: 23.43 mm – larger than an old coin
Number of enter in circulation: 1.5 billion dollars – about a 23 per person. Old Â£1 coins were melted down to make new
Outer ring: gold color, made of nickel-brass
Inner ring: silver, made from nickel-silver alloy