diff --git a/apps/web/Components/Output/index.jsx b/apps/web/Components/Output/index.jsx
index 9e6ff98..90bf543 100644
--- a/apps/web/Components/Output/index.jsx
+++ b/apps/web/Components/Output/index.jsx
@@ -48,14 +48,30 @@ const Wrapper = styled(Background)`
 `;
 
 const Output = observer(() => {
-  const { $results } = useStore();
+  const { $calculation, $tables, $results } = useStore();
   const [activeKey, setActiveKey] = useState(undefined);
 
   useEffect(() => {
+    const hasErrors =
+      $calculation.hasErrors ||
+      $tables.fingap.hasErrors ||
+      $tables.insurance.hasErrors ||
+      $tables.payments.hasErrors;
+
     if ($results.payments.length > 0) {
       setActiveKey('payments-table');
     }
-  }, [$results.payments.length]);
+
+    if (hasErrors) {
+      setActiveKey('validation');
+    }
+  }, [
+    $calculation.hasErrors,
+    $results.payments.length,
+    $tables.fingap.hasErrors,
+    $tables.insurance.hasErrors,
+    $tables.payments.hasErrors,
+  ]);
 
   return (
     <Wrapper>