The "mm/yy" on an ATM card indicates the expiration date of the card, representing the month and year until which the card is valid.
According to the provided reference, the date listed next to "valid thru" on your debit card is the month and year (MM/YY) your debit card is valid until, meaning the card expires after that day in that month. You should receive a replacement card from your bank before your current card expires.
Here's a breakdown:
- MM stands for the month of expiration (e.g., 01 for January, 12 for December).
- YY stands for the year of expiration (e.g., 25 for 2025).
Therefore, if your card displays "Valid Thru 08/26", it means your card is valid until August 31, 2026, and expires on September 1, 2026.