diff --git a/backend/app/main.py b/backend/app/main.py
index 83c1789..b2453ac 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -1292,10 +1292,18 @@ def get_dashboard_data(
     
     # Aplicar filtros de fecha
     if start_date:
-        start = datetime.fromisoformat(start_date)
+        # Parsear fecha y establecer al inicio del día en UTC
+        from datetime import timezone
+        start = datetime.fromisoformat(start_date).replace(hour=0, minute=0, second=0, microsecond=0)
+        if start.tzinfo is None:
+            start = start.replace(tzinfo=timezone.utc)
         query = query.filter(models.Inspection.started_at >= start)
     if end_date:
-        end = datetime.fromisoformat(end_date)
+        # Parsear fecha y establecer al final del día en UTC
+        from datetime import timezone
+        end = datetime.fromisoformat(end_date).replace(hour=23, minute=59, second=59, microsecond=999999)
+        if end.tzinfo is None:
+            end = end.replace(tzinfo=timezone.utc)
         query = query.filter(models.Inspection.started_at <= end)
     
     # Filtro por mecánico
@@ -1327,10 +1335,16 @@ def get_dashboard_data(
         .filter(models.Inspection.is_active == True)
     
     if start_date:
-        start = datetime.fromisoformat(start_date)
+        from datetime import timezone
+        start = datetime.fromisoformat(start_date).replace(hour=0, minute=0, second=0, microsecond=0)
+        if start.tzinfo is None:
+            start = start.replace(tzinfo=timezone.utc)
         flagged_items = flagged_items.filter(models.Inspection.started_at >= start)
     if end_date:
-        end = datetime.fromisoformat(end_date)
+        from datetime import timezone
+        end = datetime.fromisoformat(end_date).replace(hour=23, minute=59, second=59, microsecond=999999)
+        if end.tzinfo is None:
+            end = end.replace(tzinfo=timezone.utc)
         flagged_items = flagged_items.filter(models.Inspection.started_at <= end)
     if mechanic_id:
         flagged_items = flagged_items.filter(models.Inspection.mechanic_id == mechanic_id)
@@ -1364,10 +1378,16 @@ def get_dashboard_data(
      .filter(models.Inspection.is_active == True)
     
     if start_date:
-        start = datetime.fromisoformat(start_date)
+        from datetime import timezone
+        start = datetime.fromisoformat(start_date).replace(hour=0, minute=0, second=0, microsecond=0)
+        if start.tzinfo is None:
+            start = start.replace(tzinfo=timezone.utc)
         mechanic_stats = mechanic_stats.filter(models.Inspection.started_at >= start)
     if end_date:
-        end = datetime.fromisoformat(end_date)
+        from datetime import timezone
+        end = datetime.fromisoformat(end_date).replace(hour=23, minute=59, second=59, microsecond=999999)
+        if end.tzinfo is None:
+            end = end.replace(tzinfo=timezone.utc)
         mechanic_stats = mechanic_stats.filter(models.Inspection.started_at <= end)
     
     mechanic_stats = mechanic_stats.group_by(models.User.id, models.User.full_name)\
@@ -1401,10 +1421,16 @@ def get_dashboard_data(
      .filter(models.Checklist.is_active == True)
     
     if start_date:
-        start = datetime.fromisoformat(start_date)
+        from datetime import timezone
+        start = datetime.fromisoformat(start_date).replace(hour=0, minute=0, second=0, microsecond=0)
+        if start.tzinfo is None:
+            start = start.replace(tzinfo=timezone.utc)
         checklist_stats_query = checklist_stats_query.filter(models.Inspection.started_at >= start)
     if end_date:
-        end = datetime.fromisoformat(end_date)
+        from datetime import timezone
+        end = datetime.fromisoformat(end_date).replace(hour=23, minute=59, second=59, microsecond=999999)
+        if end.tzinfo is None:
+            end = end.replace(tzinfo=timezone.utc)
         checklist_stats_query = checklist_stats_query.filter(models.Inspection.started_at <= end)
     if mechanic_id:
         checklist_stats_query = checklist_stats_query.filter(models.Inspection.mechanic_id == mechanic_id)
@@ -1456,10 +1482,16 @@ def get_dashboard_data(
      .filter(models.Answer.answer_value.in_(['pass', 'fail', 'good', 'bad', 'regular']))
     
     if start_date:
-        start = datetime.fromisoformat(start_date)
+        from datetime import timezone
+        start = datetime.fromisoformat(start_date).replace(hour=0, minute=0, second=0, microsecond=0)
+        if start.tzinfo is None:
+            start = start.replace(tzinfo=timezone.utc)
         pass_fail_data = pass_fail_data.filter(models.Inspection.started_at >= start)
     if end_date:
-        end = datetime.fromisoformat(end_date)
+        from datetime import timezone
+        end = datetime.fromisoformat(end_date).replace(hour=23, minute=59, second=59, microsecond=999999)
+        if end.tzinfo is None:
+            end = end.replace(tzinfo=timezone.utc)
         pass_fail_data = pass_fail_data.filter(models.Inspection.started_at <= end)
     if mechanic_id:
         pass_fail_data = pass_fail_data.filter(models.Inspection.mechanic_id == mechanic_id)
@@ -1496,6 +1528,7 @@ def get_inspections_report(
     query = db.query(
         models.Inspection.id,
         models.Inspection.vehicle_plate,
+        models.Inspection.checklist_id,
         models.Checklist.name.label('checklist_name'),
         models.User.full_name.label('mechanic_name'),
         models.Inspection.status,
@@ -1515,10 +1548,16 @@ def get_inspections_report(
     
     # Aplicar filtros
     if start_date:
-        start = datetime.fromisoformat(start_date)
+        from datetime import timezone
+        start = datetime.fromisoformat(start_date).replace(hour=0, minute=0, second=0, microsecond=0)
+        if start.tzinfo is None:
+            start = start.replace(tzinfo=timezone.utc)
         query = query.filter(models.Inspection.started_at >= start)
     if end_date:
-        end = datetime.fromisoformat(end_date)
+        from datetime import timezone
+        end = datetime.fromisoformat(end_date).replace(hour=23, minute=59, second=59, microsecond=999999)
+        if end.tzinfo is None:
+            end = end.replace(tzinfo=timezone.utc)
         query = query.filter(models.Inspection.started_at <= end)
     if mechanic_id:
         query = query.filter(models.Inspection.mechanic_id == mechanic_id)
@@ -1541,6 +1580,7 @@ def get_inspections_report(
         {
             "id": r.id,
             "vehicle_plate": r.vehicle_plate,
+            "checklist_id": r.checklist_id,
             "checklist_name": r.checklist_name,
             "mechanic_name": r.mechanic_name,
             "status": r.status,
diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 102b560..147f08c 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -3176,82 +3176,135 @@ function ReportsTab({ user }) {
   const [dashboardData, setDashboardData] = useState(null)
   const [inspections, setInspections] = useState([])
   const [loading, setLoading] = useState(true)
+  const [mechanics, setMechanics] = useState([])
+  const [checklists, setChecklists] = useState([])
   const [filters, setFilters] = useState({
-    startDate: '',
-    endDate: '',
-    mechanicId: ''
+    date: '',
+    mechanicId: '',
+    checklistId: ''
+  })
+  const [appliedFilters, setAppliedFilters] = useState({
+    date: '',
+    mechanicId: '',
+    checklistId: ''
   })
 
-  const loadDashboard = async () => {
+  const loadMechanics = async () => {
+    try {
+      const token = localStorage.getItem('token')
+      const API_URL = import.meta.env.VITE_API_URL || ''
+      const response = await fetch(`${API_URL}/api/users`, {
+        headers: { 'Authorization': `Bearer ${token}` }
+      })
+      if (response.ok) {
+        const data = await response.json()
+        setMechanics(data.filter(u => u.role === 'mechanic' || u.role === 'mecanico'))
+      }
+    } catch (error) {
+      console.error('Error loading mechanics:', error)
+    }
+  }
+
+  const loadChecklists = async () => {
+    try {
+      const token = localStorage.getItem('token')
+      const API_URL = import.meta.env.VITE_API_URL || ''
+      const response = await fetch(`${API_URL}/api/checklists`, {
+        headers: { 'Authorization': `Bearer ${token}` }
+      })
+      if (response.ok) {
+        const data = await response.json()
+        setChecklists(data)
+      }
+    } catch (error) {
+      console.error('Error loading checklists:', error)
+    }
+  }
+
+  const loadDashboard = async (filtersToApply) => {
     try {
       const token = localStorage.getItem('token')
       const API_URL = import.meta.env.VITE_API_URL || ''
       
       let url = `${API_URL}/api/reports/dashboard?`
-      if (filters.startDate) url += `start_date=${filters.startDate}&`
-      if (filters.endDate) url += `end_date=${filters.endDate}&`
-      if (filters.mechanicId) url += `mechanic_id=${filters.mechanicId}&`
+      if (filtersToApply.date) url += `start_date=${filtersToApply.date}&`
+      if (filtersToApply.mechanicId) url += `mechanic_id=${filtersToApply.mechanicId}&`
       
-      console.log('Loading dashboard from:', url)
+      console.log('Dashboard URL:', url)
+      console.log('Filters applied:', filtersToApply)
       
       const response = await fetch(url, {
         headers: { 'Authorization': `Bearer ${token}` }
       })
       
-      console.log('Dashboard response status:', response.status)
-      
       if (response.ok) {
         const data = await response.json()
-        console.log('Dashboard data:', data)
+        console.log('Dashboard data received:', data)
         setDashboardData(data)
       } else {
-        const errorText = await response.text()
-        console.error('Dashboard error response:', response.status, errorText)
+        console.error('Dashboard request failed:', response.status)
       }
     } catch (error) {
       console.error('Error loading dashboard:', error)
     }
   }
 
-  const loadInspections = async () => {
+  const loadInspections = async (filtersToApply) => {
     try {
       const token = localStorage.getItem('token')
       const API_URL = import.meta.env.VITE_API_URL || ''
       
       let url = `${API_URL}/api/reports/inspections?`
-      if (filters.startDate) url += `start_date=${filters.startDate}&`
-      if (filters.endDate) url += `end_date=${filters.endDate}&`
-      if (filters.mechanicId) url += `mechanic_id=${filters.mechanicId}&`
+      if (filtersToApply.date) url += `start_date=${filtersToApply.date}&`
+      if (filtersToApply.mechanicId) url += `mechanic_id=${filtersToApply.mechanicId}&`
       
-      console.log('Loading inspections from:', url)
+      console.log('Inspections URL:', url)
       
       const response = await fetch(url, {
         headers: { 'Authorization': `Bearer ${token}` }
       })
       
-      console.log('Inspections response status:', response.status)
-      
       if (response.ok) {
-        const data = await response.json()
-        console.log('Inspections data:', data)
+        let data = await response.json()
+        console.log('Inspections data received:', data.length, 'items')
+        console.log('First inspection data:', data[0])
+        // Filtrar por checklist en el frontend
+        if (filtersToApply.checklistId) {
+          const filtered = data.filter(i => {
+            console.log('Comparing:', i.checklist_id, '===', parseInt(filtersToApply.checklistId))
+            return i.checklist_id === parseInt(filtersToApply.checklistId)
+          })
+          data = filtered
+          console.log('After checklist filter:', data.length, 'items')
+        }
         setInspections(data)
       } else {
-        const errorText = await response.text()
-        console.error('Inspections error response:', response.status, errorText)
+        console.error('Inspections request failed:', response.status)
       }
     } catch (error) {
       console.error('Error loading inspections:', error)
     }
   }
 
+  const applyFilters = async () => {
+    setLoading(true)
+    setAppliedFilters(filters)
+    await Promise.all([loadDashboard(filters), loadInspections(filters)])
+    setLoading(false)
+  }
+
   useEffect(() => {
-    const loadData = async () => {
+    const loadInitialData = async () => {
       setLoading(true)
-      await Promise.all([loadDashboard(), loadInspections()])
+      // Cargar mecánicos y checklists primero
+      await Promise.all([loadMechanics(), loadChecklists()])
+      // Luego cargar datos sin filtros (filtros vacíos = todos los datos)
+      const emptyFilters = { date: '', mechanicId: '', checklistId: '' }
+      await Promise.all([loadDashboard(emptyFilters), loadInspections(emptyFilters)])
       setLoading(false)
     }
-    loadData()
-  }, [filters])
+    loadInitialData()
+  }, [])
 
   if (loading) {
     return <div className="text-center py-12">Cargando reportes...</div>
@@ -3265,26 +3318,16 @@ function ReportsTab({ user }) {
     <div className="space-y-6">
       {/* Filtros */}
       <div className="bg-white rounded-lg shadow p-4">
-        <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+        <h3 className="text-lg font-semibold mb-4">🔍 Filtros</h3>
+        <div className="grid grid-cols-1 md:grid-cols-4 gap-4">
           <div>
             <label className="block text-sm font-medium text-gray-700 mb-1">
-              Fecha Inicio
+              Fecha
             </label>
             <input
               type="date"
-              value={filters.startDate}
-              onChange={(e) => setFilters({...filters, startDate: e.target.value})}
-              className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500"
-            />
-          </div>
-          <div>
-            <label className="block text-sm font-medium text-gray-700 mb-1">
-              Fecha Fin
-            </label>
-            <input
-              type="date"
-              value={filters.endDate}
-              onChange={(e) => setFilters({...filters, endDate: e.target.value})}
+              value={filters.date}
+              onChange={(e) => setFilters({...filters, date: e.target.value})}
               className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500"
             />
           </div>
@@ -3293,15 +3336,45 @@ function ReportsTab({ user }) {
               <label className="block text-sm font-medium text-gray-700 mb-1">
                 Mecánico
               </label>
-              <input
-                type="number"
-                placeholder="ID del mecánico"
+              <select
                 value={filters.mechanicId}
                 onChange={(e) => setFilters({...filters, mechanicId: e.target.value})}
                 className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500"
-              />
+              >
+                <option value="">Todos los mecánicos</option>
+                {mechanics.map(mechanic => (
+                  <option key={mechanic.id} value={mechanic.id}>
+                    {mechanic.full_name}
+                  </option>
+                ))}
+              </select>
             </div>
           )}
+          <div>
+            <label className="block text-sm font-medium text-gray-700 mb-1">
+              Checklist
+            </label>
+            <select
+              value={filters.checklistId}
+              onChange={(e) => setFilters({...filters, checklistId: e.target.value})}
+              className="w-full px-3 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-indigo-500"
+            >
+              <option value="">Todos los checklists</option>
+              {checklists.map(checklist => (
+                <option key={checklist.id} value={checklist.id}>
+                  {checklist.name}
+                </option>
+              ))}
+            </select>
+          </div>
+          <div className="flex items-end">
+            <button
+              onClick={applyFilters}
+              className="w-full px-4 py-2 bg-gradient-to-r from-indigo-600 to-purple-600 text-white rounded-lg hover:from-indigo-700 hover:to-purple-700 transition"
+            >
+              Aplicar Filtros
+            </button>
+          </div>
         </div>
       </div>