diff --git a/lib/fog/compute/aws.rb b/lib/fog/compute/aws.rb
index 574a1cda4..32f6b045f 100644
--- a/lib/fog/compute/aws.rb
+++ b/lib/fog/compute/aws.rb
@@ -146,6 +146,18 @@ module Fog
           @data = self.class.data[@region][@aws_access_key_id]
         end
 
+        def apply_tag_filters(resources, filters)
+          tag_filters = {}
+          filters.keys.each do |key| 
+            tag_filters[key.gsub('tag:', '')] = filters.delete(key) if /^tag:/ =~ key
+          end
+          
+          for tag_key, tag_value in tag_filters
+            resources = resources.reject{|r| r['tagSet'][tag_key] != tag_value}
+          end
+          
+          resources
+        end
       end
 
       class Real
diff --git a/lib/fog/compute/requests/aws/describe_instances.rb b/lib/fog/compute/requests/aws/describe_instances.rb
index 6231d6b6b..24a783b8c 100644
--- a/lib/fog/compute/requests/aws/describe_instances.rb
+++ b/lib/fog/compute/requests/aws/describe_instances.rb
@@ -74,15 +74,11 @@ module Fog
             filters = {'instance-id' => [*filters]}
           end
 
-          if filters.keys.any? {|key| key =~ /^tag/}
-            Formatador.display_line("[yellow][WARN] describe_instances tag filters are not yet mocked[/] [light_black](#{caller.first})[/]")
-            Fog::Mock.not_implemented
-          end
-
           response = Excon::Response.new
 
           instance_set = @data[:instances].values
-
+          instance_set = apply_tag_filters(instance_set, filters)
+          
           aliases = {
             'architecture'      => 'architecture',
             'availability-zone' => 'availabilityZone',
diff --git a/lib/fog/compute/requests/aws/describe_snapshots.rb b/lib/fog/compute/requests/aws/describe_snapshots.rb
index bde14673b..07d99fd54 100644
--- a/lib/fog/compute/requests/aws/describe_snapshots.rb
+++ b/lib/fog/compute/requests/aws/describe_snapshots.rb
@@ -59,11 +59,6 @@ module Fog
             Formatador.display_line("[yellow][WARN] describe_snapshots with a second param is deprecated, use describe_snapshots(options) instead[/] [light_black](#{caller.first})[/]")
           end
 
-          if filters.keys.any? {|key| key =~ /^tag/}
-            Formatador.display_line("[yellow][WARN] describe_snapshots tag filters are not yet mocked[/] [light_black](#{caller.first})[/]")
-            Fog::Mock.not_implemented
-          end
-
           response = Excon::Response.new
 
           snapshot_set = @data[:snapshots].values
@@ -75,6 +70,8 @@ module Fog
             Formatador.display_line("[yellow][WARN] describe_snapshots with RestorableBy is not mocked[/] [light_black](#{caller.first})[/]")
           end
 
+          snapshot_set = apply_tag_filters(snapshot_set, filters)
+          
           aliases = {
             'description' => 'description',
             'owner-id'    => 'ownerId',
@@ -85,11 +82,12 @@ module Fog
             'volume-id'   => 'volumeId',
             'volume-size' => 'volumeSize'
           }
+          
           for filter_key, filter_value in filters
             aliased_key = aliases[filter_key]
             snapshot_set = snapshot_set.reject{|snapshot| ![*filter_value].include?(snapshot[aliased_key])}
           end
-
+          
           snapshot_set.each do |snapshot|
             case snapshot['status']
             when 'in progress', 'pending'
diff --git a/lib/fog/compute/requests/aws/describe_volumes.rb b/lib/fog/compute/requests/aws/describe_volumes.rb
index cbf41ed08..9c54b9e42 100644
--- a/lib/fog/compute/requests/aws/describe_volumes.rb
+++ b/lib/fog/compute/requests/aws/describe_volumes.rb
@@ -50,15 +50,11 @@ module Fog
             filters = {'volume-id' => [*filters]}
           end
 
-          if filters.keys.any? {|key| key =~ /^tag/}
-            Formatador.display_line("[yellow][WARN] describe_volumes tag filters are not yet mocked[/] [light_black](#{caller.first})[/]")
-            Fog::Mock.not_implemented
-          end
-
           response = Excon::Response.new
 
           volume_set = @data[:volumes].values
-
+          volume_set = apply_tag_filters(volume_set, filters)
+          
           aliases = {
             'availability-zone' => 'availabilityZone',
             'create-time' => 'createTime',