diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt
index 5af2788..773c546 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/PrimaryScreenComposable.kt
@@ -77,7 +77,7 @@ fun PrimaryScreenPreview() {
         PrimaryScreenTemplate(
             "Preview screen",
             DrawerActions({}, {}, {}, {}, {}),
-            NavigationBarActions({}, {}, {}, {}),
+            NavigationBarActions({ false }, {}, {}, {}, {}),
             {
                 IconButton(onClick = { /*TODO*/ }) {
                     Icon(
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt
index 21311ef..27fb605 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarComposable.kt
@@ -17,6 +17,7 @@ import be.ugent.sel.studeez.ui.theme.StudeezTheme
 import be.ugent.sel.studeez.R.string as AppText
 
 data class NavigationBarActions(
+    val selectedTab: (Int) -> Boolean,
     val onHomeClick: () -> Unit,
     val onTasksClick: () -> Unit,
     val onSessionsClick: () -> Unit,
@@ -28,10 +29,19 @@ fun getNavigationBarActions(
     open: (String) -> Unit,
 ): NavigationBarActions {
     return NavigationBarActions(
-        onHomeClick = { navigationBarViewModel.onHomeClick(open) },
-        onTasksClick = { navigationBarViewModel.onTasksClick(open) },
-        onSessionsClick = { navigationBarViewModel.onSessionsClick(open) },
-        onProfileClick = { navigationBarViewModel.onProfileClick(open) },
+        selectedTab = { navigationBarViewModel.isSelected(it) },
+        onHomeClick = {
+            navigationBarViewModel.onHomeClick(open)
+        },
+        onTasksClick = {
+            navigationBarViewModel.onTasksClick(open)
+        },
+        onSessionsClick = {
+            navigationBarViewModel.onSessionsClick(open)
+        },
+        onProfileClick = {
+            navigationBarViewModel.onProfileClick(open)
+        },
     )
 }
 
@@ -39,16 +49,14 @@ fun getNavigationBarActions(
 fun NavigationBar(
     navigationBarActions: NavigationBarActions,
 ) {
-    // TODO Pass functions and new screens.
-    // TODO Pass which screen is selected.
-    // TODO Disabled -> HIGH/MEDIUM_EMPHASIS if the page is implemented
     BottomNavigation(
         elevation = 10.dp
     ) {
+
         BottomNavigationItem(
             icon = { Icon(imageVector = Icons.Default.List, resources().getString(AppText.home)) },
             label = { Text(text = resources().getString(AppText.home)) },
-            selected = false, // TODO
+            selected = navigationBarActions.selectedTab(0),
             onClick = navigationBarActions.onHomeClick
         )
 
@@ -59,7 +67,7 @@ fun NavigationBar(
                 )
             },
             label = { Text(text = resources().getString(AppText.tasks)) },
-            selected = false, // TODO
+            selected = navigationBarActions.selectedTab(1),
             onClick = navigationBarActions.onTasksClick
         )
 
@@ -73,7 +81,7 @@ fun NavigationBar(
                 )
             },
             label = { Text(text = resources().getString(AppText.sessions)) },
-            selected = false, // TODO
+            selected = navigationBarActions.selectedTab(2),
             onClick = navigationBarActions.onSessionsClick
         )
 
@@ -84,7 +92,7 @@ fun NavigationBar(
                 )
             },
             label = { Text(text = resources().getString(AppText.profile)) },
-            selected = false, // TODO
+            selected = navigationBarActions.selectedTab(3),
             onClick = navigationBarActions.onProfileClick
         )
 
@@ -95,6 +103,6 @@ fun NavigationBar(
 @Composable
 fun NavigationBarPreview() {
     StudeezTheme {
-        NavigationBar(NavigationBarActions({}, {}, {}, {}))
+        NavigationBar(NavigationBarActions({ false }, {}, {}, {}, {}))
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt
index 1e4bd0d..58a75ef 100644
--- a/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/common/composable/navbar/NavigationBarViewModel.kt
@@ -7,26 +7,41 @@ import be.ugent.sel.studeez.navigation.StudeezDestinations.PROFILE_SCREEN
 import be.ugent.sel.studeez.screens.StudeezViewModel
 import dagger.hilt.android.lifecycle.HiltViewModel
 import javax.inject.Inject
+import javax.inject.Singleton
 
 @HiltViewModel
 class NavigationBarViewModel @Inject constructor(
     private val accountDAO: AccountDAO,
+    var selectedTab: SelectedTabState,
     logService: LogService
 ) : StudeezViewModel(logService) {
 
+    fun isSelected(index: Int): Boolean {
+        return index == selectedTab.selectedTab
+    }
+
     fun onHomeClick(open: (String) -> Unit) {
+        selectedTab.selectedTab = 0
         open(HOME_SCREEN)
     }
 
     fun onTasksClick(open: (String) -> Unit) {
         // TODO
+        selectedTab.selectedTab = 1
     }
 
     fun onSessionsClick(open: (String) -> Unit) {
         // TODO
+        selectedTab.selectedTab = 2
     }
 
     fun onProfileClick(open: (String) -> Unit) {
+        selectedTab.selectedTab = 3
         open(PROFILE_SCREEN)
     }
+}
+
+@Singleton
+class SelectedTabState @Inject constructor() {
+    var selectedTab: Int = 0
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt
index e318655..ba322d9 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/home/HomeScreen.kt
@@ -69,6 +69,6 @@ fun HomeScreenPreview() {
     HomeScreen(
         onStartSessionClick = {},
         drawerActions = DrawerActions({}, {}, {}, {}, {}),
-        navigationBarActions = NavigationBarActions({}, {}, {}, {})
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {})
     )
 }
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt
index a12dd08..af72010 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/profile/ProfileScreen.kt
@@ -90,6 +90,6 @@ fun ProfileScreenPreview() {
     ProfileScreen(
         profileActions = ProfileActions({ null }, {}),
         drawerActions = DrawerActions({}, {}, {}, {}, {}),
-        navigationBarActions = NavigationBarActions({}, {}, {}, {})
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {})
     )
 }
\ No newline at end of file
diff --git a/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt b/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt
index 47e7f91..007a656 100644
--- a/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt
+++ b/app/src/main/java/be/ugent/sel/studeez/screens/timer_selection/TimerSelectionScreen.kt
@@ -86,6 +86,6 @@ fun TimerSelectionPreview() {
     TimerSelectionScreen(
         timerSelectionActions = TimerSelectionActions({ flowOf() }, {}),
         drawerActions = DrawerActions({}, {}, {}, {}, {}),
-        navigationBarActions = NavigationBarActions({}, {}, {}, {}),
+        navigationBarActions = NavigationBarActions({ false }, {}, {}, {}, {}),
     )
 }
\ No newline at end of file