Index: app/models/issue.rb
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/app/models/issue.rb b/app/models/issue.rb
--- a/app/models/issue.rb	(revision e4b47acbc7e7dba269965d62a75683e46f30307e)
+++ b/app/models/issue.rb	(revision 190a8835f1946a51b99eee8362996d16b52b9dec)
@@ -949,7 +949,7 @@
 
   # Returns true if the issue is overdue
   def overdue?
-    due_date.present? && (due_date < User.current.today) && !closed?
+    due_date && (due_date < (status.is_closed ? closed_on.to_date : Date.current))
   end
 
   # Is the amount of work done less than it should for the due date
Index: test/unit/issue_test.rb
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/test/unit/issue_test.rb b/test/unit/issue_test.rb
--- a/test/unit/issue_test.rb	(revision e4b47acbc7e7dba269965d62a75683e46f30307e)
+++ b/test/unit/issue_test.rb	(revision 190a8835f1946a51b99eee8362996d16b52b9dec)
@@ -2494,15 +2494,17 @@
   def test_overdue
     User.current = nil
     today = User.current.today
-    assert  Issue.new(:due_date => (today - 1.day).to_date).overdue?
-    assert !Issue.new(:due_date => today).overdue?
-    assert !Issue.new(:due_date => (today + 1.day).to_date).overdue?
-    assert !Issue.new(:due_date => nil).overdue?
-    assert !Issue.
-              new(
-                :due_date => (today - 1.day).to_date,
-                :status => IssueStatus.where(:is_closed => true).first
-              ).overdue?
+    opened_status = IssueStatus.where(:is_closed => false).first
+    closed_status = IssueStatus.where(:is_closed => true).first
+    assert  Issue.new(:due_date => (today - 1.day), :status => opened_status).overdue?
+    assert !Issue.new(:due_date => today, :status => opened_status).overdue?
+    assert !Issue.new(:due_date => (today + 1.day), :status => opened_status).overdue?
+    assert !Issue.new(:due_date => nil, :status => opened_status).overdue?
+
+    assert  Issue.new(:due_date => (today - 1.day), :closed_on => today, :status => closed_status).overdue?
+    assert !Issue.new(:due_date => today, :closed_on => today, :status => closed_status).overdue?
+    assert !Issue.new(:due_date => (today + 1.day), :closed_on => today, :status => closed_status).overdue?
+    assert !Issue.new(:due_date => nil, :closed_on => today, :status => closed_status).overdue?
   end
 
   test "#behind_schedule? should be false if the issue has no start_date" do