T4 is for income
If they have not already, they should email or mail you a receipt stating what you paid for 2024
Is this applicable for everyone having their child in a daycare or only for a select few?
If your daycare provider is above board and paying tax they will provide you with a receipt which you may be able to claim when you do your taxes. Definitely all licensed daycares and some that aren’t but if your daycare provider is working under the table then you may not get a receipt. You can always ask them
Your daycare should issue a tax claim.