Costco Promo Code & Discount Code December 2025

More Ways to Save Money at Costco

Costco's built a membership model that actually works in your favour — when you know how to use it properly. Their Black Friday Daily Deals are running through early December with genuine discounts, plus there are year-round perks that can save you hundreds if you play your cards right. From stacking cashback rewards to timing your purchases around seasonal promotions, here's how to make your Costco membership work harder for your wallet.

How to Apply Your Costco Voucher at Checkout

Costco vouchers work differently depending on where you get them, so here's the step-by-step breakdown to make sure you don't miss out on savings:

1. Check your email for voucher codes — they're case-sensitive and must be entered exactly as shown
2. Add items worth over £11 to your basket (that's the minimum spend for most vouchers)
3. Head to the cart page on costco.co.uk where you'll find the promotion code box
4. Enter your voucher code carefully — one wrong letter and it won't work
5. Apply the discount and watch your total drop before proceeding to payment

Remember, vouchers only work against product value, so they won't cover membership fees, gift cards, or delivery charges. Most seasonal vouchers expire in January, so don't sit on them too long.

Executive Membership: 2% Back on Everything

The Executive membership is where Costco's value proposition really shines. You pay £120 annually but earn 2% cashback on most purchases, which can add up to £750 per year for Gold Star members. That means if you spend £6,000 annually at Costco, the membership pays for itself completely.

The cashback arrives as a voucher you can spend in-store or online, and it stacks beautifully with seasonal promotions. Executive members also get the same extended warranties and return policies as standard members, plus access to exclusive offers throughout the year.

Black Friday Daily Deals That Actually Save Money

Costco's approach to Black Friday is refreshingly sensible — instead of one chaotic day, they run deals through early December. This year's highlights include:

• £30 off the Tetris XL 6ft game — now £47.98 including VAT
• £20 off the Light Up Axe Throw Set — down to £41.98 including VAT
• £10 off Formula One car models — perfect for kids at £17.98
• £8 off festive tree lamps — two-pack for £20.38
• Christmas doormats from £4.78 — practical and seasonal

Plus, spend over £150 online during the promotional period and you'll get a £10 voucher emailed within 10 business days. The voucher's valid until January 2026, giving you plenty of time to use it on post-holiday essentials.

Refer a Friend for Double Rewards

Costco's referral programme is one of the most generous around. When you bring a friend to any of their 29 UK warehouses and they sign up for membership, you both get:

• £10 Costco shopping voucher each (warehouse use only)
• Free Kirkland Signature hot dog and soda — handed over immediately
• Access to all 862 worldwide locations once membership is activated

The catch? You both need to be present at the membership desk, and your friend needs valid ID. The promotion runs until January 2026, so there's no rush, but it's worth doing if you know someone who's been on the fence about joining.

Extended Warranties That Actually Matter

Unlike most retailers who charge extra for extended coverage, Costco includes impressive warranties with electronics purchases:

• 5-year warranty on televisions — that's three extra years beyond most manufacturer coverage
• 2-year warranty on computers, tablets, and cameras — double the standard protection
• Free technical support on phones, gaming consoles, and major appliances
• 90-day return policy on all electronics — enough time to properly test your purchase

This coverage can save you hundreds compared to buying extended warranties elsewhere, and the technical support line (0800 066 5091) is genuinely helpful when you need it.

New Member Perks Worth Having

If you're considering joining Costco, the timing's never been better. New warehouse members get a £10 online voucher automatically, and there are additional perks for specific groups:

• NHS workers get an extra £10 voucher on their first purchase
• Blue Light Card holders can access special Executive membership deals
• Newsletter subscribers get exclusive deals and early access to promotions

The membership also includes two cards per household, so your partner or family member gets full access to all the same benefits and savings.

Customer Support at Costco

Getting help with your Costco membership or orders is straightforward, with multiple contact options depending on what you need.

• Member Services Centre: 0800 0324 324 for membership queries and cancellations
• Membership Department: 01923 830477 for specific membership questions
• Technical Support: 0800 066 5091 for warranty services and product help
• Live chat: Available on the website when operational

Response times are typically quick, and the team genuinely knows their stuff when it comes to membership benefits and product warranties.

• Costco Facebook