diff --git a/heat/engine/resources/openstack/neutron/subnet.py b/heat/engine/resources/openstack/neutron/subnet.py
index bee9a6f889..316428823e 100644
--- a/heat/engine/resources/openstack/neutron/subnet.py
+++ b/heat/engine/resources/openstack/neutron/subnet.py
@@ -38,12 +38,12 @@ class Subnet(neutron.NeutronResource):
         NETWORK_ID, NETWORK, SUBNETPOOL, PREFIXLEN, CIDR,
         VALUE_SPECS, NAME, IP_VERSION, DNS_NAMESERVERS, GATEWAY_IP,
         ENABLE_DHCP, ALLOCATION_POOLS, TENANT_ID, HOST_ROUTES,
-        IPV6_RA_MODE, IPV6_ADDRESS_MODE, SEGMENT
+        IPV6_RA_MODE, IPV6_ADDRESS_MODE, SEGMENT, TAGS,
     ) = (
         'network_id', 'network', 'subnetpool', 'prefixlen', 'cidr',
         'value_specs', 'name', 'ip_version', 'dns_nameservers', 'gateway_ip',
         'enable_dhcp', 'allocation_pools', 'tenant_id', 'host_routes',
-        'ipv6_ra_mode', 'ipv6_address_mode', 'segment'
+        'ipv6_ra_mode', 'ipv6_address_mode', 'segment', 'tags',
     )
 
     _ALLOCATION_POOL_KEYS = (
@@ -244,6 +244,13 @@ class Subnet(neutron.NeutronResource):
             ],
             support_status=support.SupportStatus(version='9.0.0')
         ),
+        TAGS: properties.Schema(
+            properties.Schema.LIST,
+            _('The tags to be added to the subnet.'),
+            schema=properties.Schema(properties.Schema.STRING),
+            update_allowed=True,
+            support_status=support.SupportStatus(version='9.0.0')
+        ),
     }
 
     attributes_schema = {
@@ -374,12 +381,19 @@ class Subnet(neutron.NeutronResource):
         props['network_id'] = props.pop(self.NETWORK)
         if self.SEGMENT in props and props[self.SEGMENT]:
             props['segment_id'] = props.pop(self.SEGMENT)
+
+        tags = props.pop(self.TAGS, [])
+
         if self.SUBNETPOOL in props and props[self.SUBNETPOOL]:
             props['subnetpool_id'] = props.pop('subnetpool')
         self._null_gateway_ip(props)
+
         subnet = self.client().create_subnet({'subnet': props})['subnet']
         self.resource_id_set(subnet['id'])
 
+        if tags:
+            self.set_tags(tags)
+
     def handle_delete(self):
         try:
             self.client().delete_subnet(self.resource_id)
@@ -397,7 +411,9 @@ class Subnet(neutron.NeutronResource):
 
             # If the new value is '', set to None
             self._null_gateway_ip(prop_diff)
-
+            if self.TAGS in prop_diff:
+                tags = prop_diff.pop(self.TAGS)
+                self.set_tags(tags)
             self.client().update_subnet(
                 self.resource_id, {'subnet': prop_diff})
 
diff --git a/heat/tests/openstack/neutron/test_neutron_subnet.py b/heat/tests/openstack/neutron/test_neutron_subnet.py
index 624de21e36..ff3679b395 100644
--- a/heat/tests/openstack/neutron/test_neutron_subnet.py
+++ b/heat/tests/openstack/neutron/test_neutron_subnet.py
@@ -124,11 +124,14 @@ class NeutronSubnetTest(common.HeatTestCase):
                              stack)
         return rsrc
 
-    def _setup_mock(self, stack_name=None, use_deprecated_templ=False):
+    def _setup_mock(self, stack_name=None, use_deprecated_templ=False,
+                    tags=None):
         if use_deprecated_templ:
             t = template_format.parse(neutron_template_deprecated)
         else:
             t = template_format.parse(neutron_template)
+        if tags:
+            t['resources']['sub_net']['properties']['tags'] = tags
         stack = utils.parse_stack(t, stack_name=stack_name)
         sn = {
             "subnet": {
@@ -170,11 +173,12 @@ class NeutronSubnetTest(common.HeatTestCase):
             'host_routes': [{'destination': '192.168.1.0/24',
                              'nexthop': '194.168.1.2'}],
             'gateway_ip': '10.0.3.105',
+            'tags': ['tag2', 'tag3'],
             'allocation_pools': [
                 {'start': '10.0.3.20', 'end': '10.0.3.100'},
                 {'start': '10.0.3.110', 'end': '10.0.3.200'}]}}
 
-        t, stack = self._setup_mock()
+        t, stack = self._setup_mock(tags=['tag1', 'tag2'])
         create_props = {'subnet': {
             'name': utils.PhysName(stack.name, 'test_subnet'),
             'network_id': 'fc68ea2c-b60b-4b4f-bd82-94ec81110766',
@@ -190,10 +194,16 @@ class NeutronSubnetTest(common.HeatTestCase):
 
         self.patchobject(stack['net'], 'FnGetRefId',
                          return_value='fc68ea2c-b60b-4b4f-bd82-94ec81110766')
+        set_tag_mock = self.patchobject(neutronclient.Client, 'replace_tag')
         rsrc = self.create_subnet(t, stack, 'sub_net')
         scheduler.TaskRunner(rsrc.create)()
         self.assertEqual((rsrc.CREATE, rsrc.COMPLETE), rsrc.state)
         self.create_mock.assert_called_once_with(create_props)
+        set_tag_mock.assert_called_once_with(
+            'subnets',
+            rsrc.resource_id,
+            {'tags': ['tag1', 'tag2']}
+        )
         rsrc.validate()
         ref_id = rsrc.FnGetRefId()
         self.assertEqual('91e47a57-7508-46fe-afc9-fc454e8580e1', ref_id)
@@ -213,6 +223,11 @@ class NeutronSubnetTest(common.HeatTestCase):
         self.update_mock.assert_called_once_with(
             '91e47a57-7508-46fe-afc9-fc454e8580e1',
             update_props)
+        set_tag_mock.assert_called_with(
+            'subnets',
+            rsrc.resource_id,
+            {'tags': ['tag2', 'tag3']}
+        )
         # with name None
         del update_props['subnet']['name']
         rsrc.handle_update(update_snippet, {}, update_props['subnet'])
diff --git a/releasenotes/notes/set-tags-for-subnet-17a97b88dd11de63.yaml b/releasenotes/notes/set-tags-for-subnet-17a97b88dd11de63.yaml
new file mode 100644
index 0000000000..93c8de6957
--- /dev/null
+++ b/releasenotes/notes/set-tags-for-subnet-17a97b88dd11de63.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Allow to set or update the tags for OS::Neutron::Subnet resource.