YouChoose Gift Cards and YouChoose Gaming Cards are valid for 12 months in the UK and 5 years in Ireland (as required by Irish legislation).
Check when your gift card will expire by registering your card to your YouChoose account and clicking Check expiry on the homepage.
Once you've redeemed your gift card, there'll be a separate expiry date for your brand voucher code. Please check the brand's terms and conditions to see how long your voucher code is valid for.