feat: add tax_id field to Company model and related forms (#9673)

* feat: add tax_id field to Company model and related forms

* Update 0075_company_tax_id.py to fix typo

* Update models.py to fix typo

* Update tests.py to increment 'column_mappings.count()' to 15

* Update api_version.py

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,12 +1,16 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 367
+INVENTREE_API_VERSION = 368
 
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v368 -> 2025-07-11 : https://github.com/inventree/InvenTree/pull/9673
+    - Adds 'tax_id' to company model
+    - Adds 'tax_id' to search fields in the 'CompanyList' API endpoint
+
 v367 -> 2025-07-10 : https://github.com/inventree/InvenTree/pull/10001
     - Adds OAuth2 scopes for importer sessions
 

src/backend/InvenTree/company/api.py

@@ -60,7 +60,7 @@ class CompanyList(DataExportViewMixin, ListCreateAPI):
         'active',
     ]
 
-    search_fields = ['name', 'description', 'website']
+    search_fields = ['name', 'description', 'website', 'tax_id']
 
     ordering_fields = ['active', 'name', 'parts_supplied', 'parts_manufactured']
 

src/backend/InvenTree/company/migrations/0075_company_tax_id.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.2.21 on 2025-05-17 17:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("company", "0074_alter_manufacturerpart_link"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="company",
+            name="tax_id",
+            field=models.CharField(
+                blank=True,
+                help_text="Company Tax ID",
+                max_length=50,
+                verbose_name="Tax ID",
+            ),
+        ),
+    ]

src/backend/InvenTree/company/models.py

@@ -106,6 +106,7 @@ class Company(
         is_supplier: boolean value, is this company a supplier
         is_manufacturer: boolean value, is this company a manufacturer
         currency_code: Specifies the default currency for the company
+        tax_id: Tax ID for the company
     """
 
     class Meta:
@@ -224,6 +225,13 @@ class Company(
         validators=[InvenTree.validators.validate_currency_code],
     )
 
+    tax_id = models.CharField(
+        max_length=50,
+        blank=True,
+        verbose_name=_('Tax ID'),
+        help_text=_('Company Tax ID'),
+    )
+
     @property
     def address(self):
         """Return the string representation for the primary address.

src/backend/InvenTree/company/serializers.py

@@ -52,6 +52,7 @@ class CompanyBriefSerializer(InvenTreeModelSerializer):
             'image',
             'thumbnail',
             'currency',
+            'tax_id',
         ]
         read_only_fields = ['currency']
 
@@ -145,6 +146,7 @@ class CompanySerializer(
             'remote_image',
             'address_count',
             'primary_address',
+            'tax_id',
         ]
 
     @staticmethod

src/backend/InvenTree/importer/tests.py

@@ -39,7 +39,7 @@ class ImporterTest(ImporterMixin, InvenTreeTestCase):
 
         session.extract_columns()
 
-        self.assertEqual(session.column_mappings.count(), 14)
+        self.assertEqual(session.column_mappings.count(), 15)
 
         # Check some of the field mappings
         for field, col in [