9F1B
Terminal Floor LimitTerminal Floor Limit is the single threshold, in the transaction's own currency units, above which the terminal itself is required to force an online authorization regardless of what its own risk logic or the card's offline decision would otherwise allow. It's the terminal-side mirror of the same floor-limit condition that appears as one specific bit inside the Terminal Verification Results (95) and the card's own Issuer Action Codes (9F0D/9F0E/9F0F, referenced there): the terminal compares the transaction amount against 9F1B, and if the amount exceeds it, that specific TVR bit gets set, which the card's own IACs can then act on. A floor limit configured too low forces needless online traffic for routine small transactions; configured too high, it lets transactions that should have gone online for network-side risk screening slip through offline instead - either misconfiguration is invisible from any single transaction and only becomes visible as a pattern, either in unusually high decline/online rates or in offline losses concentrated just above whatever limit was actually configured. See EMV 4.4 Book 3.
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Binary (4): 00050000
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Decoded example
Example value: 00050000
Properties
| Tag | 9F1B |
|---|---|
| Name | Terminal Floor Limit |
| Format | Binary |
| Length | 4 bytes |
| Source | Terminal |
| Templates | — |
| Books | EMV 4.4 Book 3 |
Frequently asked questions
- What is EMV tag 9F1B?
- Terminal Floor Limit is the single threshold, in the transaction's own currency units, above which the terminal itself is required to force an online authorization regardless of what its own risk logic or the card's offline decision would otherwise allow. It's the terminal-side mirror of the same floor-limit condition that appears as one specific bit inside the Terminal Verification Results (95) and the card's own Issuer Action Codes (9F0D/9F0E/9F0F, referenced there): the terminal compares the transaction amount against 9F1B, and if the amount exceeds it, that specific TVR bit gets set, which the card's own IACs can then act on. A floor limit configured too low forces needless online traffic for routine small transactions; configured too high, it lets transactions that should have gone online for network-side risk screening slip through offline instead - either misconfiguration is invisible from any single transaction and only becomes visible as a pattern, either in unusually high decline/online rates or in offline losses concentrated just above whatever limit was actually configured. See EMV 4.4 Book 3.
- What format and length does EMV tag 9F1B use?
- Tag 9F1B uses the Binary format and is normally 4 bytes long.
- Is tag 9F1B provided by the card or the terminal?
- Tag 9F1B (Terminal Floor Limit) is provided by the Terminal.
Sources
- EMV_v4.4_Book_3_Application_Specification, p. 157
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