We’ve picked out 8 of our favourite kids Halloween costumes for 2026. No tricks, just treats here – earn up to 5% back for your kids when you do your spooky shop with KidStart!
1. George, Wednesday Addams Costume, £15-£17
Your little monster can enrol at Nevermore Academy with this two-piece Wednesday Addams outfit from George. It comes in sizes 5-6 years to 13-14 years.
Shop at George with KidStart to earn up to 2% back for your kids.
2. H&M, Glow-In-The- Dark Skeleton Costume, £14.99
For a classic Halloween outfit this skeleton costume from H&M does the job. It’s glow-in-the-dark and comes in sizes 3-4 years to 10-12 years.
Shop at H&M with KidStart to earn up to 5% back for your kids.
3. John Lewis, Cobweb Witch Costume, £16.99
Your child can cast a spell in this witch’s Halloween costume from John Lewis. The hat is included and it comes in sizes 5-6 years and 7-8 years.
Shop at John Lewis with KidStart to earn up to 0.6% back for your kids.
4. Argos, Spider-Man Costume, £18
This iconic Spider-Man costume is perfect for Halloween 2026. It comes in a wide range of sizes from 2-3 years to 9-10 years.
Shop at Argos with KidStart to earn up to 2.5% back for your kids.
5. Matalan, K-Pop Demon Hunters Rumi Costume, £44
Let your little one become the K-pop idol they always dreamed to be with this Rumi costume with wig included. It’s available in sizes 5-6 years to 9-10 years.
Shop at Matalan with KidStart to earn 0.6% back for your kids.
6. Disney Store, Buzz Lightyear Costume, £45
Your Space Ranger’s imagination will blast them to infinity and beyond wearing this Buzz Lightyear costume. Includes padded uniform, wings, plus authentic sounds and dazzling lights. Currently in stock in sizes 5-6 years to 9-10 years.
Shop at Disney Store with KidStart to earn 2.5% back for your kids.
7. Very, Monster High Frankie Stein Costume, £29.99 £34.99
If your child loves Monsters High then they will love this Frankie Stein costume. It includes the dress, belt, tights and hair clip and comes in sizes 5-6 years to 11-13 years.
Shop at Very with KidStart to earn up to 4.5% back for your kids.
8. Wilko, Pumpkin Costume, £16-£17
The smallest of the family of the family don’t have to miss out this halloween either with Wilko’s adorable pumpkin costume. It comes in sizes 12-18 months and 18-24 months.
Shop at Wilko with KidStart to earn 1.3% back for your kids.
Remember to stock up on Halloween treats when you do your next grocery shop – earn up to 5% back on groceries with Sainsbury’s, Waitrose, ASDA, Iceland and more. Shop groceries here.
Please note: Prices and KidStart Savings rates are correct as of 1st October 2026.