What Is Cashback and How Does It Work

Cashback is a reward scheme where you earn back a percentage of the money you spend, typically through a cashback credit card, cashback debit card, or cashback app. 

The more you spend on eligible purchases, the more you earn back. This makes it one of the simplest and most preferred financial rewards available to UK consumers today.

In this blog post, we focus on the meaning of cashback, how it works for consumers, what its pros and cons are, as well as the implications for merchants.

What Is Cashback?

Cashback is a type of monetary reward that a consumer receives monthly, annually, or via cheque form, for shopping at select retailers with a credit card.

This means that the more they spend at these select retailers – whether physical or online – the higher their chances of earning a percentage back on the total cost of the item.

Although introduced as far back as around 1986, cashback has been and continues to be a popular reward program for both credit card issuers and customers alike. In the UK, cashback is available through a range of products, including credit cards, debit cards, bank accounts, dedicated cashback apps, and retailer-specific programmes.

In essence, customers can get anything from as little as 1% back or as much as 5%, but the total amount will ultimately depend on the credit card company you’ve signed up with. 

How Does Cashback Work?

Cashback works through the following step-by-step process. 

Step 1: Customer Makes a Purchase With an Eligible Card or Platform

The cashback process begins at the point of purchase, when the customer pays using a card or platform that is enrolled in a cashback program.

Cashback eligibility depends on the card terms and the retailer involved. Some programmes apply cashback across all spending, while others limit it to specific merchant categories, partner retailers, or cashback deals activated in advance through an app or website.

Step 2: The transaction is recorded by the Card Issuer or Cashback Provider

Once the purchase is completed, the transaction is recorded by the card issuer or cashback platform. Then, the provider confirms that the purchase meets the criteria for the cashback scheme. 

For example, the confirmation can be that the merchant is a partner, that the spending category qualifies, and that no exclusions apply.

Step 3: Cashback Percentage Is Calculated

The cashback calculations are applied to the qualifying transaction amount. 

If your card offers a 1.5% cashback rate on all spending and you spend £200, you earn £3 back. If the card uses cashback tiers, let’s say a higher rate on groceries and a lower rate on general spending, the appropriate tier is applied to each transaction category.

Some cards apply different cashback rates depending on how much you spend in a given period.

Step 4: Reward Is Credited to Account or Paid Out

The accumulated cashback is then paid out according to the provider’s schedule. 

Monthly cashback is credited at the end of each statement period, while annual cashback is held and released once per year. 

Some programmes allow you to redeem cashback at any point once a minimum threshold is reached, but others automatically apply it as a statement credit against your balance.

Types Of Cashback In The UK  

The UK market offers several distinct types of cashback: 

• Credit card cashback – The most established form of cashback in the UK, which returns a percentage of eligible spending to the cardholder, usually on a monthly or annual basis. The best cashback cards in this category often include a sign-up bonus for new cardholders and tiered or category-based rates that reward spending in areas like groceries, fuel, or travel more generously than general purchases.
  
• Debit card cashback – Some UK current accounts and digital banks now offer cashback on debit card spending, making cashback accessible to consumers who prefer not to use credit. A cashback debit card works in the same way as a credit card cashback scheme, but the reward is funded differently, and the cashback amounts are typically more modest.
  
• Retailer or app-based cashback – Cashback apps and online platforms connect consumers with cashback offers from partner retailers. Users activate a cashback deal through the app or website before shopping, and the cashback is tracked and credited once the transaction is confirmed by the retailer.
  
• Introductory and bonus cashback offers – Many card providers and platforms use cashback promotions to attract new customers. These introductory offers may include elevated cashback rates for the first few months, bonus cashback on specific spending categories, or a flat sign-up bonus once a minimum spend is reached.

Each one of these cashback types goes hand in hand with different mechanics and is suited to different spending habits.

Which Businesses Usually Offer Cashback  

Cashback programmes can be offered across a wide range of sectors. However, they are especially common in industries where customers make repeat purchases, compare prices regularly, or can be encouraged to stay loyal over time.

Here are a few examples:

• Supermarkets often use cashback to reward regular grocery spending and encourage customers to choose the same retailer for repeat shops.
  
• Petrol stations use cashback to make frequent fuel spending feel more manageable, particularly for commuters, families, and business drivers.
  
• Travel and insurance providers use cashback to make higher-value purchases, such as holidays, cover, or renewals, feel more competitive.
  
• Online retailers use cashback to encourage shoppers to complete purchases, return for future orders, or increase the value of their baskets.
  
• Subscription services use cashback to attract new customers to products such as streaming, software, food boxes, mobile plans, or other recurring services.

The specific requirements and incentives can vary from sector to sector.

Cashback Rates And Limits 

Understanding cashback rates and the restrictions that apply to them is essential for both businesses and customers. 

Here’s everything you need to know. 

Typical rates 

Standard cashback rates in the UK typically fall between 0.5% and 1.5% for general spending on most cashback credit cards and debit accounts. 

Higher cashback rates of 2% to 5% are available on specific spending categories, like groceries, fuel, or partner retailers, and through some premium cards that charge an annual fee in exchange for more generous rewards.

Cashback tiers 

Many programmes use a tiered structure to incentivise higher spending or reward loyalty. 

For example, a programme might offer 1% cashback on the first £500 of monthly spending, rising to 2% on spending above that threshold. 

Cashback tiers can make high cashback rates accessible to regular spenders, but require careful tracking to ensure you are benefiting from the most favourable tier.

Spending caps and cashback limits 

Most cashback programmes impose cashback limits – a maximum amount of cashback that can be earned per month, per year, or per spending category. 

It’s important to consider these caps when comparing programmes, particularly for high spenders who might otherwise benefit from uncapped cashback strategies. 

Always check the small print for any ceiling on cashback earnings before committing to a card or platform.

Cashback tax implications 

For most UK consumers, cashback received on personal spending is not taxable and does not need to be declared to HMRC, as it is considered a discount on purchases rather than income. 

However, cashback received through an employee cashback card or a business expense card may have different implications depending on how the employer or HMRC treats the benefit.  

Advantages And Disadvantages Of Cashback  

Cashback naturally comes with a set of advantages and disadvantages. Here are a few factors to consider. 

Advantages of Cashback  

Cashback is incredibly popular in the UK, with 57% of British shoppers wanting more cashback rewards from brands they shop with. 

This popularity stems from the following advantages: 

• Simplicity – Shoppers earn cashback on purchases they would be making regardless, turning routine cashback spending into a passive source of savings.
  
• Sign-up bonuses – Many of the best cashback cards offer introductory cashback promotions that provide a substantial lump sum or elevated rates for new cardholders.
  
• Flexible usage across retailers – Unlike retailer-specific loyalty programmes, cashback rewards from a credit or debit card can be earned across a wide range of merchants. This flexibility means you are not tied to spending at specific stores to benefit.
  
• Tangible, immediate value – Cashback returns real money rather than points that need to be redeemed through a portal or converted at an unfavourable rate.

These perks naturally make cashback a lucrative and attractive option for UK consumers. 

Disadvantages Of Cashback  

At the same time, cashback can also be linked to a few potential drawbacks: 

• Delayed payouts – Monthly cashback is typically credited at the end of the billing cycle, while annual cashback programmes hold your earnings for up to 12 months. App-based cashback can take weeks to be confirmed by the retailer before it is released to your account.
  
• Higher APR on some cards – Cashback credit cards sometimes carry a higher annual percentage rate (APR) than standard cards. If you carry a balance from month to month rather than paying it off in full, the interest charges will quickly outweigh any cashback rewards earned.
  
• Spending caps and restrictions – Cashback limits mean that high spenders may find their rewards plateauing before the end of the month or year. Restrictions on eligible merchants, minimum transaction thresholds, and category exclusions can also reduce the practical value of a cashback scheme.
  
• Risk of overspending – Cashback incentives can encourage consumers to spend more than they otherwise would, particularly in categories where higher rates are available, which may lead to financial stress for consumers. 

Acknowledging and understanding these disadvantages can help you approach cashback options better prepared. 

Cashback Vs Discounts And Rewards  

Cashback is one of several approaches to rewarding consumer spending, but it is not always the most beneficial option for every individual or situation. 

Here is how it compares to the alternatives, like discounts and rewards. 

Cashback vs instant discounts

An instant discount reduces the price at the point of purchase, meaning that shoppers pay less immediately.  Cashback, by contrast, is paid out after the transaction, often with a delay. 

For consumers on a tight budget, an instant discount may be more practically useful than cashback savings that arrive weeks later. However, cashback deals often provide higher overall value than one-off discounts, especially when applied to regular, recurring purchases.

Cashback vs points or loyalty schemes

Points-based loyalty programmes, like air miles, supermarket points, or hotel rewards, can offer excellent value for consumers who spend heavily in specific categories with a clear strategy to redeem points. 

However, points systems are more complex than cashback. They require active management, redemption through specific channels, and an understanding of points valuations that cashback simply does not. 

Cashback rewards are more transparent, more flexible, and easier to use, making them preferable for consumers who want a simple, low-maintenance cashback strategy.

When each is more beneficial

So which option makes the most sense for consumers? It depends.

Cashback works best for consumers with consistent, predictable spending patterns who pay off their balance monthly. 

Points and loyalty schemes tend to offer greater upside for frequent travellers or heavy category spenders who can maximise redemption value. 

Instant discounts are most useful for one-off purchases where the timing of savings matters.

What Merchants Need To Know About Cashback  

For business owners, cashback programmes raise understandable questions – particularly on whether they affect pricing or create additional costs for the merchant. 

Here are a few important things to understand:

• Cashback is funded by the card issuer, not the merchant. The cashback reward is usually funded from the interchange fees that the issuer receives as part of every card transaction. Merchants do not contribute directly to the cashback payout and do not need to artificially inflate their prices to cover the cost of a customer’s cashback earnings.
  
• There’s no direct impact on merchant pricing. Because the cashback incentive sits entirely between the card issuer and the cardholder, it has no direct effect on what a merchant charges. 

• While merchants do not fund cashback directly, they benefit from it indirectly.  Consumers who hold cashback credit cards are incentivised to use those cards for their spending, which can drive purchasing decisions, including where they shop. 

All in all, merchants who accept a broad range of card payments are better positioned to capture spending from customers motivated by their cashback program.

Cashback And Payments For UK Businesses 

For UK businesses, the connection between cashback and card payment acceptance is practical and commercially relevant.

Consumers who hold cashback cards are motivated to use them, and businesses that cannot accept card payments risk missing out on that spending entirely. 

Whether a customer is shopping in-store or purchasing online, the payment experience needs to be fast, reliable, and compatible with their preferred card. Businesses that offer a smooth checkout process, both physically and digitally, are better positioned to capture cashback-inspired spending at every touchpoint.

For small and medium-sized businesses in the UK, the foundation of all of this is a reliable payment infrastructure. 

Platforms like myPOS provide card payment acceptance tools, including POS terminals, online payment processing, and fast transaction settlement, that enable UK businesses to accept card payments efficiently across both in-store and online channels. 

This way, companies can be better placed to capture spending from customers using cashback cards and digital wallets.

Conclusion

Cashback is one of the most accessible and genuinely useful financial rewards available to UK consumers, because it gives customers a clear, practical benefit on purchases they may already be planning to make.

From a business perspective, making the most of cashback means understanding how it affects customer choice, loyalty, margins, and long-term value. When used carefully, cashback can help businesses attract new customers, encourage repeat purchases, and make their offer feel more competitive without relying only on discounts.

Disclaimer: Please be aware that the contents of this article and the myPOS Blog, in general, should not be interpreted as legal, monetary, tax, or any other kind of professional advice. You should always seek to consult with a professional before taking action, since the particulars of your situation may materially differ from other cases.

Frequently Asked Questions

When does offering cashback actually increase my average transaction value?

Cashback can increase your average transaction value when customers choose to withdraw cash alongside a purchase, effectively raising the total transaction amount processed through your terminal.

How does cashback affect my card processing fees and margins?

You may pay card processing fees on the full transaction amount, including the cashback portion, even though you don’t earn revenue on the cash given. This can slightly reduce your margins depending on your fee structure.

Does offering cashback reduce my need for holding cash in-store?

Yes, offering cashback can help reduce excess cash in your till by distributing it to customers, which can improve cash management and lower the need for frequent bank deposits.