diff --git a/src/main/kotlin/com/android/trisolarisserver/controller/Payments.kt b/src/main/kotlin/com/android/trisolarisserver/controller/Payments.kt
index 0019217..bd12e13 100644
--- a/src/main/kotlin/com/android/trisolarisserver/controller/Payments.kt
+++ b/src/main/kotlin/com/android/trisolarisserver/controller/Payments.kt
@@ -57,7 +57,7 @@ class Payments(
             throw ResponseStatusException(HttpStatus.BAD_REQUEST, "amount must be > 0")
         }
 
-        val method = parseMethod(request.method)
+        val method = request.method?.let { parseMethod(it) } ?: PaymentMethod.CASH
         val receivedAt = parseOffset(request.receivedAt) ?: OffsetDateTime.now()
         val payment = Payment(
             property = property,
diff --git a/src/main/kotlin/com/android/trisolarisserver/controller/dto/PaymentDtos.kt b/src/main/kotlin/com/android/trisolarisserver/controller/dto/PaymentDtos.kt
index c6424c6..f8d6856 100644
--- a/src/main/kotlin/com/android/trisolarisserver/controller/dto/PaymentDtos.kt
+++ b/src/main/kotlin/com/android/trisolarisserver/controller/dto/PaymentDtos.kt
@@ -4,7 +4,7 @@ import java.util.UUID
 
 data class PaymentCreateRequest(
     val amount: Long,
-    val method: String,
+    val method: String? = null,
     val currency: String? = null,
     val reference: String? = null,
     val notes: String? = null,