diff --git a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanMethod.kt b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanMethod.kt
index 0da8e433..534730cf 100644
--- a/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanMethod.kt
+++ b/BankingClientModel/src/commonMain/kotlin/net/codinux/banking/client/model/tan/TanMethod.kt
@@ -10,5 +10,9 @@ open class TanMethod(
     open val maxTanInputLength: Int? = null,
     open val allowedTanFormat: AllowedTanFormat = AllowedTanFormat.Alphanumeric
 ) {
+
+    open val isNumericTan: Boolean
+        get() = allowedTanFormat == AllowedTanFormat.Numeric
+
     override fun toString() = "$displayName ($type, ${identifier})"
 }
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