diff --git a/modules/item/back/models/expense.json b/modules/item/back/models/expense.json
index 368876fbe..03147c08b 100644
--- a/modules/item/back/models/expense.json
+++ b/modules/item/back/models/expense.json
@@ -18,12 +18,5 @@
         "isWithheld": {
             "type": "number"
         }
-    },
-    "relations": {
-        "taxType": {
-          "type": "belongsTo",
-          "model": "TaxType",
-          "foreignKey": "taxTypeFk"
-        }
     }
 }
\ No newline at end of file