Format: nLength: 4Fixed length
DE 14
Date, Expiration
What it is
Card expiry as YYMM. Issuers validate it against the card record; absent when the acquirer cannot provide it.
Example values
2812Card expires December 2028.Specification reference
Defined in ISO 8583:1987 (base). Card networks publish their own dialect tables (Visa BASE I / V.I.P., Mastercard CIS) that refine formats, lengths, and — for private-use elements — the entire layout. Always confirm against the interface specification you implement.