diff --git a/src/space-model/services/tag-model.service.ts b/src/space-model/services/tag-model.service.ts
index b663590..b23bc7e 100644
--- a/src/space-model/services/tag-model.service.ts
+++ b/src/space-model/services/tag-model.service.ts
@@ -519,6 +519,23 @@ export class TagModelService {
     // Extract tags marked for addition in spaceTags
     const spaceTagsToAdd = spaceTags.filter((tag) => tag.action === 'add');
 
+    const subspaceTagsToAdd = subspaceModels.flatMap(
+      (subspace) => subspace.tags?.filter((tag) => tag.action === 'add') || [],
+    );
+
+    const subspaceTagsToDelete = subspaceModels.flatMap(
+      (subspace) =>
+        subspace.tags?.filter((tag) => tag.action === 'delete') || [],
+    );
+
+    const subspaceTagsToDeleteUuids = new Set(
+      subspaceTagsToDelete.map((tag) => tag.uuid),
+    );
+
+    const commonTagsInSubspaces = subspaceTagsToAdd.filter((tag) =>
+      subspaceTagsToDeleteUuids.has(tag.uuid),
+    );
+
     // Find UUIDs of tags that are common between spaceTagsToAdd and subspace tags marked for deletion
     const commonTagUuids = new Set(
       spaceTagsToAdd
@@ -536,11 +553,25 @@ export class TagModelService {
     );
 
     // Modify subspaceModels by removing tags with UUIDs present in commonTagUuids
-    const modifiedSubspaces = subspaceModels.map((subspace) => ({
+    let modifiedSubspaces = subspaceModels.map((subspace) => ({
       ...subspace,
       tags: subspace.tags?.filter((tag) => !commonTagUuids.has(tag.uuid)) || [],
     }));
 
+    modifiedSubspaces = modifiedSubspaces.map((subspace) => ({
+      ...subspace,
+      tags:
+        subspace.tags?.filter(
+          (tag) =>
+            !(
+              tag.action === 'delete' &&
+              commonTagsInSubspaces.some(
+                (commonTag) => commonTag.uuid === tag.uuid,
+              )
+            ),
+        ) || [],
+    }));
+
     return modifiedSubspaces;
   }
 }
diff --git a/src/space/services/tag/tag.service.ts b/src/space/services/tag/tag.service.ts
index 2dee0c7..be783b2 100644
--- a/src/space/services/tag/tag.service.ts
+++ b/src/space/services/tag/tag.service.ts
@@ -543,6 +543,23 @@ export class TagService {
     // Extract tags marked for addition in spaceTags
     const spaceTagsToAdd = spaceTags?.filter((tag) => tag.action === 'add');
 
+    const subspaceTagsToAdd = subspaceModels.flatMap(
+      (subspace) => subspace.tags?.filter((tag) => tag.action === 'add') || [],
+    );
+
+    const subspaceTagsToDelete = subspaceModels.flatMap(
+      (subspace) =>
+        subspace.tags?.filter((tag) => tag.action === 'delete') || [],
+    );
+
+    const subspaceTagsToDeleteUuids = new Set(
+      subspaceTagsToDelete.map((tag) => tag.uuid),
+    );
+
+    const commonTagsInSubspaces = subspaceTagsToAdd.filter((tag) =>
+      subspaceTagsToDeleteUuids.has(tag.uuid),
+    );
+
     // Find UUIDs of tags that are common between spaceTagsToAdd and subspace tags marked for deletion
     const commonTagUuids = new Set(
       spaceTagsToAdd
@@ -560,11 +577,25 @@ export class TagService {
     );
 
     // Modify subspaceModels by removing tags with UUIDs present in commonTagUuids
-    const modifiedSubspaces = subspaceModels.map((subspace) => ({
+    let modifiedSubspaces = subspaceModels.map((subspace) => ({
       ...subspace,
       tags: subspace.tags?.filter((tag) => !commonTagUuids.has(tag.uuid)) || [],
     }));
 
+    modifiedSubspaces = modifiedSubspaces.map((subspace) => ({
+      ...subspace,
+      tags:
+        subspace.tags?.filter(
+          (tag) =>
+            !(
+              tag.action === 'delete' &&
+              commonTagsInSubspaces.some(
+                (commonTag) => commonTag.uuid === tag.uuid,
+              )
+            ),
+        ) || [],
+    }));
+
     return modifiedSubspaces;
   }
 }