diff --git a/modules/invoiceIn/back/model-config.json b/modules/invoiceIn/back/model-config.json
index 467d6f7f9..f0745f53b 100644
--- a/modules/invoiceIn/back/model-config.json
+++ b/modules/invoiceIn/back/model-config.json
@@ -2,6 +2,9 @@
     "InvoiceIn": {
         "dataSource": "vn"
     },
+    "InvoiceInTax": {
+        "dataSource": "vn"
+    },
     "InvoiceInDueDay": {
         "dataSource": "vn"
     },
diff --git a/modules/invoiceIn/back/models/invoice-in-tax.json b/modules/invoiceIn/back/models/invoice-in-tax.json
new file mode 100644
index 000000000..6a7f5e8a9
--- /dev/null
+++ b/modules/invoiceIn/back/models/invoice-in-tax.json
@@ -0,0 +1,55 @@
+{
+    "name": "InvoiceIn",
+    "base": "Loggable",
+    "log": {
+        "model": "InvoiceInLog"
+    },
+    "options": {
+        "mysql": {
+            "table": "invoiceIn"
+        }
+    },
+    "properties": {
+        "id": {
+            "id": true,
+            "type": "Number",
+            "description": "Identifier"
+        },
+        "taxableBase": {
+            "type": "number"
+        },
+        "foreignValue": {
+            "type": "number"
+        },
+        "created": {
+            "type": "date"
+        }
+    },
+    "relations": {
+        "sageWithholding": {
+            "type": "belongsTo",
+            "model": "SageWithholding",
+            "foreignKey": "withholdingSageFk"
+        },
+        "invoiceIn": {
+            "type": "belongsTo",
+            "model": "InvoiceIn",
+            "foreignKey": "invoiceInFk"
+        },
+        "expence": {
+            "type": "belongsTo",
+            "model": "Expence",
+            "foreignKey": "expenceFk"
+        },
+        "tiposIva": {
+            "type": "belongsTo",
+            "model": "TiposIva",
+            "foreignKey": "taxTypeSageFk"
+        },
+        "transactionTypeSage": {
+            "type": "belongsTo",
+            "model": "TiposTransacciones",
+            "foreignKey": "transactionTypeSageFk"
+        }
+    }
+}
\ No newline at end of file
diff --git a/modules/invoiceIn/back/models/sageIvaType.json b/modules/invoiceIn/back/models/sageIvaType.json
new file mode 100644
index 000000000..a687a5460
--- /dev/null
+++ b/modules/invoiceIn/back/models/sageIvaType.json
@@ -0,0 +1,30 @@
+{
+    "name": "SageIvaType",
+    "options": {
+        "mysql": {
+            "table": "sage.TiposIva"
+        }
+    },
+    "properties": {
+        "id": {
+            "id": true,
+            "type": "Number",
+            "description": "Identifier",
+            "mysql": {
+                "columnName": "CodigoIva"
+            }
+        },
+        "description": {
+            "type": "string",
+            "mysql": {
+                "columnName": "Iva"
+            }
+        },
+        "rate": {
+            "type": "number",
+            "mysql": {
+                "columnName": "PorcentajeIva"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/modules/invoiceIn/back/models/sageTransactionType.json b/modules/invoiceIn/back/models/sageTransactionType.json
new file mode 100644
index 000000000..8856fecbc
--- /dev/null
+++ b/modules/invoiceIn/back/models/sageTransactionType.json
@@ -0,0 +1,24 @@
+{
+    "name": "sageTransactionType",
+    "options": {
+        "mysql": {
+            "table": "sage.TiposTransacciones"
+        }
+    },
+    "properties": {
+        "id": {
+            "id": true,
+            "type": "Number",
+            "description": "Identifier",
+            "mysql": {
+                "columnName": "CodigoTransaccion"
+            }
+        },
+        "description": {
+            "type": "string",
+            "mysql": {
+                "columnName": "Transaccion"
+            }
+        }
+    }
+}
\ No newline at end of file