Costco Promo Code & Discount Code December 2025

More Ways to Save Money at Costco

Costco's not just about buying toilet paper in bulk (though that's brilliant too). Their model is packed with money-saving perks that go way beyond the warehouse floor. From cashback rewards that literally pay you to shop to extended warranties that save hundreds on electronics, here's how to make your Costco card work harder for your wallet.

How to Apply Your Costco Discount Code at Checkout

While Costco doesn't typically use traditional discount codes like other retailers, they do offer vouchers and special pricing that work similarly. Here's how to make sure you're getting every saving available:

1. Log into your Costco account before shopping to access exclusive pricing automatically
2. Check for vouchers in your account dashboard or email — these apply automatically at checkout
3. Look for instant savings marked on product pages, which deduct automatically when you add items to your basket
4. Verify your Executive status to ensure you're earning 2% cashback on every purchase
5. Review your basket before payment to confirm all discounts and instant savings have been applied

If you've got a specific voucher code from a promotion, enter it in the payment section where it says 'Gift Card or Voucher'. Remember, most Costco savings happen automatically once you're logged in.

Maximise Your Membership Rewards

Earn Up to £750 Back with Executive Rewards

Executive status is where Costco gets seriously generous with your wallet. You'll earn an annual 2% reward on qualified purchases, which can add up to £750 for Executive Business cardholders and £500 for Executive Gold Star shoppers. The upgrade costs just £35+VAT annually for Gold Star and £40+VAT for Business.

Here's the clever bit: grocery delivery purchases count towards your Executive reward. So when you're ordering household essentials for that flat £5.99 delivery fee, you're actually earning money back. Spend £1,750 annually and you've already broken even on the Gold Star upgrade cost.

Your cashback reward comes as a voucher that can be redeemed at any of Costco's 29 UK warehouses. It's like getting an annual bonus just for shopping where you already shop.

Get £10 Free with the Refer-a-Friend Programme

Costco's refer-a-friend scheme runs until January 18th, 2026, and it's one of the easiest ways to earn free money. Both you and your friend receive a £10 Costco shopping voucher plus a complimentary Kirkland Signature Hot Dog & Soda when they sign up.

The catch? You both need to visit the warehouse together and be present when your friend signs up at the desk. Your friend will need valid ID, and you'll need your Costco card. The vouchers can only be redeemed in-store, not online, but that free hot dog makes the trip worthwhile.

Unlock Extra Value on Products and Services

Free Technical Support and Extended Warranties on Electronics

Buy any electronic item at Costco and you're getting perks that'd cost you hundreds elsewhere. Every TV, computer, tablet, camera, gaming console, and major appliance comes with free technical support for life. No more paying £50+ for someone to walk you through basic troubleshooting.

The warranty extensions are even better:

• 5-year warranty on televisions from the date of purchase
• 2-year warranty on computers, tablets, monitors, projectors, and cameras
• 2-year warranty on major appliances and white goods
• Free parts and labour if anything goes wrong

Compare that to buying extended warranties elsewhere — you're easily saving £200+ on a TV alone. Plus, you get a generous 90-day return policy on electronics, which is three times longer than most retailers offer.

Grocery Delivery for £5.99 with No Minimum Spend

Costco's grocery delivery is brilliantly simple: £5.99 per order, no minimum spend required. Whether you're ordering a single pack of batteries or a month's worth of household supplies, the delivery cost stays the same. Your order typically arrives within 2 business days.

This flat-rate pricing is perfect for smaller orders that would normally cost more in petrol and parking fees. Plus, if you're an Executive, every grocery delivery purchase earns you that 2% cashback reward. You're literally getting paid to shop from your sofa.

The service covers non-perishable food and household supplies, so you can stock up on everything from cleaning products to snacks without leaving home. Just note that delivery isn't available to Channel Islands, Post Office Boxes, BFPO addresses, or Northern Ireland.

Hunt for Deals in the Hot Buys Section

Costco's Hot Buys section is where you'll find their biggest discounts — we're talking savings like £1,000 off Tesla Powerwall systems or £700 off steam showers. These deals are limited-time offers while stocks last, so they move fast.

The rotating Featured Categories section also highlights seasonal savings, such as £30 off televisions or £500 off garden dining sets. It's worth checking regularly, especially if you're planning a big purchase. The discounts here often beat what you'd find during traditional sale events elsewhere.

Find Special Discounts

NHS Workers Get Extra Savings

NHS workers get a £10 voucher on their first purchase when signing up for a new Costco card — a nice way to say thanks to key workers. This offer stacks nicely with other benefits. Sign up as an NHS worker, grab your £10 voucher, upgrade to Executive status, and start earning 2% back on everything.

New Customer Offers

New customers can get £15 off a one-year online subscription when they sign up for the Costco newsletter. It's like getting a head start on your savings before you've even filled your first shopping basket.

Customer Support at Costco

Costco's support team can help with queries, technical issues, and general shopping questions, though they're currently experiencing longer hold times than usual.

• Department: 01923 830477
• Technical and Warranty Services: Freephone 0800 066 5091
• Bulk Sales Department: +44 (0)1923 830 521/591/688
• Email: bulksales@costco.co.uk
• Office Hours: Monday to Friday, 8:30am to 5:30pm

For common technical issues with TVs, computers, and appliances, check their self-help options at productsupport.costco.co.uk before calling.