Last reviewed: 26 October 2026
Finding a discount online can feel like a victory. But a product advertised at 50% off isn't automatically a bargain, and a cashback offer doesn't always mean you're getting the lowest price.
The good news is that UK shoppers have access to useful tools for comparing prices, checking previous selling prices and earning cashback on purchases they were already planning to make.
In this guide, we'll explain seven practical ways to find genuine shopping discounts in the UK, avoid misleading offers and make better decisions before spending your money.
1. Decide What You Need Before Looking for Discounts
One of the easiest ways to overspend is to start browsing sales without knowing what you're looking for.
Retailers frequently advertise limited-time offers, clearance deals and large percentage reductions. These promotions can make products seem more attractive than they actually are.
Before shopping, ask yourself:
Do I genuinely need this item?
Was I planning to buy it before seeing the discount?
What is the maximum amount I'm prepared to spend?
Could I buy a suitable alternative for less?
Can the purchase wait until I've compared prices?
For larger purchases, such as a television, laptop or household appliance, write down the features you need before looking at offers.
Practical tip: Keep a simple shopping wish list on your phone. Add the product name, your budget and the price you'd be happy to pay.
A £30 purchase isn't a £20 saving just because the retailer says the original price was £50. If you didn't need the product, you've still spent £30.
2. Compare Prices Across Different UK Retailers
The first price you find isn't necessarily the cheapest.
Before buying, compare the same product across several reputable retailers.
Useful comparison services include:
Google Shopping - Search for products offered by different retailers.
PriceSpy UK - Compare prices and explore available product-price information.
PriceRunner UK - Compare products and offers across participating retailers.
These services can help you identify differences in advertised prices, although they don't necessarily include every retailer or every available deal.
Check that you're comparing identical products.
For example, two laptops may look the same but have different amounts of memory, storage or warranty coverage.
Also consider the total cost:
Product price
Delivery charges
Any compulsory fees
Additional charges for necessary accessories
Return postage, where applicable
Example:
Retailer A: £49 for the product plus £6 delivery = £55
Retailer B: £52 for the same product with free delivery = £52
Retailer B is cheaper overall, despite having the higher advertised product price.
Practical tip: Compare the final amount payable at checkout, not just the price shown on the product page.
3. Check Whether a Sale Discount Is Genuine
Have you ever seen a product advertised as:
Was £199 - Now £99
That looks like an impressive discount, but there's an important question: was £199 genuinely the product's usual selling price?
Which? has investigated potentially misleading savings claims, including cases where products had been sold at several different prices before a promotion.
The UK's Advertising Standards Authority also expects businesses making savings claims to substantiate them.
Rather than automatically trusting the advertised percentage, look at the product's price history.
Useful tools include:
CamelCamelCamel - Tracks available Amazon product-price history.
PriceSpy - Offers price-history information for supported products.
PriceRunner - Provides price comparison and available historical information.
These tools may not capture every seller, promotion or discount code, so treat them as helpful evidence rather than a complete record.
Practical tip: If a product regularly sells for £80 but is advertised as reduced from £140 to £85, the supposed discount may not represent good value.
For more guidance, read Which?'s advice on finding the best online prices.
4. Look for Genuine Discount Codes and Loyalty Offers
Before completing an online purchase, it's worth checking whether the retailer offers an eligible discount code.
Some retailers provide promotions through:
Their official website or app
Email newsletters
Student or other verified eligibility schemes
Loyalty programmes
Seasonal or clearance promotions
However, not every code found on a voucher website will work.
Some codes have expired, apply only to new customers or exclude certain products.
Before relying on a code, check:
Its expiry date.
Any minimum-spend requirement.
Whether your chosen product qualifies.
Whether the offer applies to existing customers.
Whether it can be combined with other promotions.
Don't add unnecessary products to your basket just to reach a minimum spending threshold.
Practical tip: Apply the code before paying and confirm that your final order total has genuinely decreased.
If you subscribe to promotional emails, consider using a separate email address or unsubscribing when you no longer find them useful. Constant sales notifications can encourage unnecessary spending.
5. Understand How Cashback Websites Work
Cashback websites allow shoppers to receive money back on some eligible purchases.
Two established UK services are:
The basic process is straightforward:
Create an account with the cashback website.
Search for a participating retailer.
Read the offer's terms and exclusions.
Click through to the retailer from the cashback website.
Complete an eligible purchase.
Wait for the transaction to track and be approved.
If the transaction qualifies, the cashback may eventually become available for withdrawal.
Important: Cashback is not guaranteed.
MoneySavingExpert warns that cashback can fail to track, be declined by retailers or take several months to become payable.
Cashback sites may also offer optional paid membership tiers. Check the membership conditions before joining.
Another important warning: using a discount code not approved by the cashback provider can sometimes invalidate your cashback.
Practical tip: First find the cheapest suitable retailer. Only then check whether cashback is available for that retailer and purchase.
Never buy something simply because it offers a high cashback percentage.
You can read MoneySavingExpert's regularly updated guide to cashback websites.
6. Check That an Online Retailer Is Genuine
A very cheap price can sometimes be a warning sign rather than a bargain.
Fraudulent websites may advertise expensive products at unusually low prices to attract shoppers.
Some copy the appearance of well-known retailers, while others use professional-looking photographs and convincing customer reviews.
Before buying from an unfamiliar website, check the following:
Website address
Make sure the address is genuinely associated with the retailer. Be cautious of unusual spellings or links received through unsolicited messages.
Contact information
Look for clear company details, contact methods and a realistic returns policy. The presence of these details alone doesn't prove a business is legitimate.
Independent reviews
Search for experiences from previous customers outside the retailer's own website. Remember that reviews can also be fabricated.
Payment methods
Be cautious if an unfamiliar retailer insists on direct bank transfers or another payment method offering limited protection.
Unrealistic prices
If a new website appears to be selling an expensive branded product for a fraction of its normal price, investigate before paying.
Even sponsored advertisements on major platforms are not a guarantee that a retailer is trustworthy.
Practical tip: When you're unsure about an unfamiliar shop, don't rush the purchase. Check the retailer carefully or choose a trusted alternative.
Read Which?'s guide to spotting online shopping scams.
7. Understand Your Return Rights Before Buying
A low price isn't particularly useful if the product turns out to be unsuitable and returning it is expensive or difficult.
Before ordering online, check:
The retailer's returns policy
The return deadline
Whether you'll need to pay return postage
Whether the product has special return restrictions
The seller's business location
For many online purchases from UK businesses, consumers generally have a 14-day cancellation period after receiving the goods when they change their mind.
After notifying the retailer that you're cancelling, you normally have another 14 days to return the goods.
However, important exceptions apply, including some personalised, perishable and hygiene-sensitive products.
Your rights can also depend on whether you're purchasing from a business or a private individual.
What about faulty sale items?
A product bought in a sale still has the same statutory protections against faults as a product bought at full price.
If something is faulty, not as described or unfit for its intended purpose, different consumer rights may apply.
For official information, read:
Practical tip: Check the returns policy before placing your order, particularly when buying clothes, shoes or expensive household items.
The FirstStepsGuides Five-Minute Deal Check
Before buying something advertised as discounted, spend five minutes answering these questions:
- Is this something I actually need?
- Have I compared the total price across other retailers?
- Have I checked the available price history?
- Is there a legitimate discount code I can use?
- Is cashback available, without relying on it being paid?
- Is the seller trustworthy?
- Do I understand the returns policy?
If an offer still makes sense after these checks, it's much more likely to be a worthwhile purchase.
Frequently Asked Questions
Are cashback websites free to use?
Major cashback services offer free membership options, although optional paid tiers may also be available. Always check the current terms.
Can I use a voucher code and earn cashback on the same purchase?
Sometimes, but not always. Some cashback offers exclude purchases using unauthorised voucher codes. Check the cashback provider's conditions before buying.
Is a product advertised at 70% off automatically a bargain?
No. The discount may be based on a previous selling price or recommended retail price that doesn't reflect what the item normally costs elsewhere. Compare actual prices and available price history.
Do I lose my consumer rights when buying sale items?
No. Discounted goods still have statutory protections if they're faulty, although change-of-mind returns and other circumstances may involve different rules.
More Ways to Save Money in the UK
Shopping discounts are only one way to reduce everyday spending.
You can also explore our other FirstStepsGuides articles:
How to Find Free and Reduced-Price Food in the UK (2026): 3 Genuine Ways
How to Find Yellow-Sticker Supermarket Deals in the UK (2026): Practical Money-Saving Tips
How to Reduce Gas and Electricity Bills in the UK (2026): 7 Practical Ways
Useful Sources
This guide was researched using information from:
Advertising Standards Authority - Promotional Savings Claims
Competition and Markets Authority - Clear and Accurate Pricing
This guide is for general information. Prices, cashback rates, retailer offers and terms can change. The shopping services mentioned are examples, not guarantees of the cheapest price or a successful cashback payment.
Final Thoughts
The secret to saving money when shopping isn't finding the biggest percentage discount.
It's finding a product you genuinely need, at a sensible price, from a trustworthy retailer.
Price comparison tools, voucher codes and cashback websites can all be useful, but they work best when you start with a budget and avoid unnecessary purchases.
Remember: A genuine bargain should help you spend less, not encourage you to buy more.
For more practical UK money-saving advice, follow @firststepsguides on Instagram.
First Steps Guides - Spend Less. Live Smarter.