Consumers applying for a credit card with Sainsbury's before May 23rd will receive a Nectar points boost.
Those who sign up for the credit card before this date will be rewarded with 3,000 Nectar points, which is worth £15 on the first purchase used on the card.
Consumers will also be able to earn two Nectar points for every £1 that they spend using the credit card.
These points can then be redeemed on a number of offers across the supermarket, such as days out and a reduction in petrol bills.
Brits looking for a new credit card may be tempted by this offer, as more consumers are searching for cards that have rewards.
A recent survey by Sainsbury's Finance found that 28 per cent of people looking for a new credit card want to feel better rewarded.
Stuart McKeggie, head of Sainsbury's Credit Cards, said last month: "We're encouraged by the sign that more of us are shopping around for a credit card that rewards our custom.
"But with so many different cards to consider, it's easy to become overwhelmed. When you're looking for a card, the most important thing is to choose a card that gives you the maximum benefit for your particular card usage."
A price comparison site, such as MoneyExpert.com, could help Britons shop around for a new credit card.
That is because the site lists all the cards currently on the market including their interest rates and any benefits that are being offered.
Some of the best credit cards on the market, according to the website, include the one being offered by Lloyds TSB as users can accrue airmiles by making purchases on their credit card, and ones from Tesco and the Royal Bank of Scotland.
These cards offer zero per cent interest on all purchases for 13 months.