Three discount codes for Feb 2026 | 20% OFF

FAQs

Does Three offer free shipping?

Yes, orders for phones, tablets, broadband tech and accessories all come with free next-day delivery via DPD if you order before 8pm. Orders are shipped on weekdays, but you can also choose to pay an additional fee if you'd like weekend delivery, or guaranteed delivery before 12pm the next day. All orders include tracking details, which will be emailed to you as soon as your order is dispatched.

Can I get a Three student discount?

Three offers students a number of exclusive deals to help them save on their devices and plans. The network offers 20% off phone airtime, SIM Only, and home broadband plans. To access these deals, you'll need to verify your status with a valid ac.uk email address. Note that this does not apply to 24-month SIM plans with 25GB and 120GB of data, or device repayment costs for phone airtime plans. Home broadband discounts are also only applicable to 12-month and 24-month options. 

Does Three offer upgrade deals?

Absolutely. Customers who didn't buy their device outright can upgrade to new models with ease thanks to Three's flexible upgrade deals, which often offers savings on the price of swapping out for new devices. Any customer who has been with the network for more than 90 days can upgrade their device any time, with no need to pay off the remainder of airtime or SIM Only plans, and you can even trade in old tech for a discount on your next model.

Can I trade in old tech to Three?

If you've got old tech you no longer use, you can hand it over to Three in exchange for cash or a discount on your next order. Three accepts all kinds of handsets, offering up to £400 depending on the model and condition. To get started, just provide your IMEI number and some details on condition to get a quote. If you're happy with the quoted price, accept to receive a prepaid shipping label, then let the network know whether you're after store credit or cash and send your device off. You can find more details on the trade-in process on the brand's site.

Is there a Three app?

Customers can download the Three app free of charge for Android and Apple through the Google Play and Apple App store. You can use the app to see your bills and usage statements, purchase top-ups and add-ons, access deals, upgrade your phone, place new orders and even find the best spot for your broadband tech. Users will also get a number of app-exclusive discounts to help you save a little extra.

If you want to get extra rewards for being a Three customer, you can also download the Three+ app and join the brand's members discount scheme, where you'll be able to access extra savings on food & drink, events and tickets and more.

What is the Three return policy?

Should you change your mind, you can send hardware back to Three within 14 days (or 30 days for broadband devices such as routers), but you will need to get in touch with the brand before you do so to notify them. You'll also need to arrange your own shipping and cover any return costs. Phones, tablets, routers and accessories must all be returned in like-new condition and their original packaging with all included accessories to be eligible for a refund.

Three Saving tips

Look out for deals

Three customers can access a whole host of deals throughout the year, with up to 50% off selected products and the likes of up to £200 for switching to the network on offer year-round. We tend to see significant savings around key holidays such as Black Friday and Cyber Monday, with plenty of other less wide-reaching offerings in between major sales periods. Keep a close eye on this page to see all the latest and best ways to save - we add them to this page as soon as they become available.

Buy Like New

Don't need a brand new device? You can save a little extra on your tech by opting to shop Three's Like New range, where you can pick up refurbished Apple and Samsung handsets at up to £158 less than buying them new. Every item sold through the Like New range has been subjected to a 65-point quality inspection to ensure it's up to standard, plus you'll be covered by a 36-month warranty to protect against any faults.

Join Three+

Three+ is the mobile network's rewards app that gives customers a wealth of discounts on the high street and beyond. Deals include the likes of £1 coffees, £5 off food when you spend £20 and £3 cinema tickets, with brands like Caffe Nero, Harvester, Cineworld, Nike and Bloom & Wild taking part.

Three also partners with Chelsea FC to bring members money off merch, stadium tours, and the chance to win tickets to games. You can find info on how to join and the kinds of discounts on offer on the dedicated Three+ page of the network's website.

Bag a bundle

Three sells a number of bundles which combine some of the latest handsets with other products such as cases, earbuds, chargers, smartwatches and even Meta Ray Ban smart glasses. You'll find bundles from the likes of Apple, Google, Samsung and HONOR, with bundles offered at up to 20% less than the price of buying items separately.

Refer a friend

Know someone who'd like the deals Three has to offer? You can refer them to the brand to earn yourself a reward. Just provide your chosen email address and you'll be sent a unique link to pass on to your friends and family. When they purchase a plan, you'll both get rewards depending on the kind of plan they order. For pay monthly phones and SIMs as well as home or mobile broadband plans, you'll both get £40 in cash, whilst tablet orders will net you both £10.

Connect Together

Connect Together allows customers to save extra on their bills by combining existing bills in their household or switching them over to Three. Once you have one plan, you'll earn 20% off each additional pay monthly, SIM Only and laptop or tablet plan you add, as well as 10% off the network's super-fast broadband packages, which offer speeds of up to 150mbps. As well as bringing you savings, Connect Together means all your bills will be merged into a single bill, making it easier to manage all the plans in your household in one place.

How to use Three discount codes

  1. Browse our selection of Three discount codes and choose one you want to apply to your order.
  2. Click the "Get code" button next to your chosen offer to open a new tab, where your code will be revealed.
  3. Copy the code for later, then head back to your previous tab to reach the Three website.
  4. Start shopping for the handsets and plans you want to purchase, adding them to your basket as you go.
  5. When you're ready to spend, click on your basket to review your order, then scroll down to the "Have a promotional code?" section.
  6. Click "Add your code here" to open the text field, then paste in your code and click "Apply".
  7. Double-check your order total has changed to include your savings, then proceed through the checkout as normal to place your order.

How we source voucher codes

At TechRadar, we have a number of tools at our disposal to help us find the latest voucher codes. Our Vouchers team uses connections with big name brands, our affiliate networks, and the world wide web to source the latest & best codes for our pages. Each page is updated multiple times a week with sales info, exclusive codes negotiated by our Commercial team, and a number of ways to save on your next online order.

How we test voucher codes

Every code listed on TechRadar is tested before it’s added to our pages by our Vouchers team. We include a range of offers including student discounts, sale prices, free shipping, & more across a number of categories of products & services. Each code is checked to ensure it is accepted at the checkout, and you won’t find any one-time use or user-specific codes.

The expiry date and any terms & conditions of each code are also displayed on the page, next to or below the ‘Get Code’ button, for added clarity. Click the text that reads ‘Terms & Conditions’ to expand the corresponding area, where you can read more about any requirements your order will need to meet in order for your chosen coupon to be accepted.

What to do if a voucher code doesn’t work

We take the utmost care to verify every code before it’s uploaded, and include as much relevant information as we can find to make using our codes as straightforward as possible. However, sometimes codes expire or are amended before we’re able to refresh our pages, and codes may not work as intended.

Should you experience any issues, it’s always best to start by checking the terms & conditions on the page. Click “View terms and conditions” and the code area will expand. You’ll see all applicable criteria listed in this area. For example, you may not meet a required minimum spend (i.e. spend £20 or more); you may not have enough times in your basket (e.g. you have only selected 2 products when trying to redeem a 3 for 2 multibuy offer), or your chosen offer may only apply to a certain type of product (i.e. 10% off laptops).

If issues persist once you’ve checked that you’ve met any necessary requirements, you can get in touch with our support team by emailing coupons.techradar@futurenet.com. Please provide as much detail about your issue as possible - including which code you used and where you found it - and we’ll be in touch to provide support as soon as we can.

How we make money

All the money TechRadar makes through its voucher pages is earned through a commission-based model. We have deals in place with every retailer that has a voucher page on our site, and every time someone makes a purchase using one of our codes, we earn a percentage of the total basket value back in commission.

Thanks to this model, we can offer all of our codes & discounts completely free of charge. You’ll never be asked to pay a fee to redeem an offer on our site - all you’ll pay is the discounted price of the products or services you’ve chosen to buy.

If you want to find out more about TechRadar’s voucher pages, you can visit our dedicated page on How We Source Voucher Codes and How to Use Them for more information.

Harry Bowden-Ford
Coupons Writer

Harry is a Senior SEO Copywriter on the vouchers team and has been helping readers save money since joining Future in 2022. He has authored content across a number of sites including Tom’s Guide, PC Gamer, MyVoucherCodes and TechRadar, and using his extensive money-saving expertise, keeps pages up-to-date with the latest sales info and saving tips, covering all kinds of brands from computing and electronics to streaming and software. When he’s not writing about the latest discounts, Harry is a keen musician and gamer, and is always on the lookout for deals on guitar pedals or triple-A titles.

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About Three

Three is one of the UK's four major mobile networks. First launched in 2003, it offers 4G coverage to 99% of the UK's population, and has been won awards for delivering the fastest 5G in the country. Three customers can receive signal from the network's own infrastructure, as well as Vodafone's, further extending coverage and keeping you connected wherever you are.

Customers will find phones from the likes of Apple, Google and Samsung, plus tablets and smartwatches, networking gear such as routers, and helpful accessories like chargers and earphones, as well as a range of pay monthly and SIM Only plans for mobiles, tablets and smartwatches, and home and mobile broadband packages that offer speeds of up to 150mbps without needing a landline.

If you're looking to join the network at the lowest possible price, take a look through our list of the latest Three discount codes and saving tips on this page before you head to the checkout. We keep a close eye on the latest the network has to offer, updating this page whenever we can help you get a discount on your tech and plan.

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Written by

Harry Bowden-Ford Harry Bowden-Ford Coupons Writer

Harry is a Senior SEO Copywriter on the vouchers team and has been helping readers save money since joining Future in 2022. He has authored content across a number of sites including Tom’s Guide, PC Gamer, MyVoucherCodes and TechRadar, and using his extensive money-saving expertise, keeps pages up-to-date with the latest sales info and saving tips, covering all kinds of brands from computing and electronics to streaming and software. When he’s not writing about the latest discounts, Harry is a keen musician and gamer, and is always on the lookout for deals on guitar pedals or triple-A titles.