Format: nLength: 8Fixed length
DE 8
Amount, Cardholder Billing Fee
What it is
Fee charged to the cardholder in the billing currency (rarely used; superseded by DE 28-31 in most networks).
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.