Shoppers who still have Clubcard vouchers issued in November 2022 are being told to use them by month-end or lose them.
Shoppers who have older Clubcard vouchers have been warned to use them by midnight on Thursday (31 October) or lose them for good.
Tesco said that there are up to £18 million worth of vouchers first issued in November 2022 that have yet to be redeemed.
Clubcard vouchers are valid for two years, meaning they expire at the end of October.
Tesco has already emailed at-risk customers, but if you're worried you might have missed the correspondence you can simply log into your Clubcard account and check there.
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Extend your Clubcard voucher's life
If you do have a bunch of vouchers that are about to become worthless but don't have anything practical to redeem them on just yet, there is a way to extend the life of most of your balance.
As highlighted by Moneysavingexpert here, you just need to make the smallest possible purchase on the Clubcard reward partners page for each voucher you own.
As you can see from the screengrab below, there are a bunch of top-up vouchers that you can buy for as little as 50p.
So, let's assume you have two £5 Clubcard vouchers. By redeeming them on a couple of 50p purchases, you'll then have two shiny new vouchers worth £4.50 that'll be good for another couple of years.
It's not the perfect solution, but it's certainly better than wasting your vouchers on something you'll never need or use!