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Earn Custard when you shop in-store or online at over 150+ retailers.

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Sainsbury’s

🌐 Online

🛒 In-store

⚡ 20 seconds

How to earn instant
cashback at Sainsbury’s

Before you pay, open the Custard app.
Buy the Sainsbury’s gift card for the amount you're spending.
Pay as normal, cashback is added instantly.
Most members start with their weekly shop.

Spend it your way

Use your balance just like a normal payment method.

  • In-store at participating locations
  • Online via the brand’s website or app
  • Add to your phone wallet for quick checkout
  • Earn instant cashback on every shop

Simple. Fast. No codes or vouchers to remember.

Instant Cashback at 180+ Brands

Same Custard account. Same balance.

Cashback from gift cards is added to the same balance as your offers, games and surveys.
As with all Custard earnings, withdrawals are available once your balance reaches £10.
So next time you shop, think Custard and think Instant Cashback.

About Sainsburys Cashback

Sainsbury’s is one of the UK’s leading supermarkets, trusted by millions of households for quality food, everyday essentials and convenient shopping. From weekly grocery shops and fresh produce to household items and fuel, Sainsbury’s is a regular stop for UK shoppers looking for reliability and value.

While supermarket discount codes aren’t always available, you can still save money by earning instant cashback via UK cashback site, Custard when you use a Sainsbury’s gift card.

Why Shop at Sainsbury’s?

Sainsbury’s offers a broad range of products that make everyday shopping simple, including:

  • Weekly grocery shops and fresh food

  • Household essentials and toiletries

  • Clothing from Tu and seasonal items

  • Fuel, convenience shopping and online orders

Whether you’re doing a full weekly shop or popping in for essentials, Sainsbury’s is a staple for many UK households.

Earn Instant Cashback via Custard

By purchasing a Sainsbury’s gift card through the Custard app, you can earn instant cashback on your spend. Your cashback is credited straight away, helping you save money on shopping you’d be doing anyway.

It’s an easy way to reduce the cost of everyday essentials without changing how or where you shop.

How It Works

  1. Download and open the Custard app

  2. Go to the Gift Cards section and select Sainsbury’s

  3. Choose your gift card value and complete your purchase

  4. Earn instant cashback and receive your gift card

  5. Use it in-store or online at Sainsbury’s

Sainsbury’s gift cards are usually available in set denominations rather than exact amounts. Many shoppers use them for weekly food shops, spreading the balance across multiple visits.

A Smarter Way to Save on Everyday Shopping

Sainsbury’s gift cards aren’t just for gifting. Many Custard members use them for their own groceries, household essentials and fuel — earning cashback on spending that’s already part of their routine.

If you’re looking for supermarket discounts, everyday savings and an easy way to earn instant cashback as a UK shopper, Sainsbury’s via Custard is a simple, practical way to save on essentials.