Do the Coverflex Childcare vouchers have an expiration date? Bruna Ribeiro 16 November 2022 15:15 Updated No. When your Coverflex Childcare voucher is issued, it is immediately allocated to the school you have chosen. Related articles What is Coverflex Childcare and how does it work? Do I have a due date to use the discounts? Can I use Coverflex Childcare to pay for extracurricular activities? Is there an amount limit for a Childcare voucher? What covers the public transportation benefit category and how does it work?