diff --git a/frappe/model/document.py b/frappe/model/document.py
index 69a781d6d1..316c576f55 100644
--- a/frappe/model/document.py
+++ b/frappe/model/document.py
@@ -1307,6 +1307,16 @@ class Document(BaseDocument):
 		users = set([assignment.owner for assignment in assignments])
 		return users
 
+	def add_tag(self, tag):
+		"""Add a Tag to this document"""
+		from frappe.desk.doctype.tag.tag import DocTags
+		DocTags(self.doctype).add(self.name, tag)
+
+	def get_tags(self):
+		"""Return a list of Tags attached to this document"""
+		from frappe.desk.doctype.tag.tag import DocTags
+		return DocTags(self.doctype).get_tags(self.name).split(",")[1:]
+
 def execute_action(doctype, name, action, **kwargs):
 	"""Execute an action on a document (called by background worker)"""
 	doc = frappe.get_doc(doctype, name)