diff --git a/src/pages/tasks/TaskAssigneeSelectorModal.js b/src/pages/tasks/TaskAssigneeSelectorModal.js
index f8f567a7b913..7e5ab63bdddf 100644
--- a/src/pages/tasks/TaskAssigneeSelectorModal.js
+++ b/src/pages/tasks/TaskAssigneeSelectorModal.js
@@ -17,9 +17,11 @@ import withLocalize, {withLocalizePropTypes} from '../../components/withLocalize
 import compose from '../../libs/compose';
 import personalDetailsPropType from '../personalDetailsPropType';
 import reportPropTypes from '../reportPropTypes';
-import ROUTES from '../../ROUTES';
 import * as ReportUtils from '../../libs/ReportUtils';
+import ROUTES from '../../ROUTES';
 import * as Task from '../../libs/actions/Task';
+import FullPageNotFoundView from '../../components/BlockingViews/FullPageNotFoundView';
+import withCurrentUserPersonalDetails from '../../components/withCurrentUserPersonalDetails';
 
 const propTypes = {
     /** Beta features list */
@@ -194,10 +196,14 @@ function TaskAssigneeSelectorModal(props) {
         }
     };
 
+    const isOpen = ReportUtils.isOpenTaskReport(props.task.report);
+    const canModifyTask = Task.canModifyTask(props.task.report, props.currentUserPersonalDetails.accountID);
+    const isTaskNonEditable = report && ReportUtils.isTaskReport(props.task.report) && (!canModifyTask || !isOpen);
+
     return (
         <ScreenWrapper includeSafeAreaPaddingBottom={false}>
             {({didScreenTransitionEnd, safeAreaPaddingBottomStyle}) => (
-                <>
+                <FullPageNotFoundView shouldShow={isTaskNonEditable}>
                     <HeaderWithBackButton
                         title={props.translate('task.assignee')}
                         onBackButtonPress={() => (lodashGet(props.route.params, 'reportID') ? Navigation.dismissModal() : Navigation.goBack(ROUTES.NEW_TASK))}
@@ -215,7 +221,7 @@ function TaskAssigneeSelectorModal(props) {
                             safeAreaPaddingBottomStyle={safeAreaPaddingBottomStyle}
                         />
                     </View>
-                </>
+                </FullPageNotFoundView>
             )}
         </ScreenWrapper>
     );
@@ -227,6 +233,7 @@ TaskAssigneeSelectorModal.defaultProps = defaultProps;
 
 export default compose(
     withLocalize,
+    withCurrentUserPersonalDetails,
     withOnyx({
         reports: {
             key: ONYXKEYS.COLLECTION.REPORT,
diff --git a/src/pages/tasks/TaskDescriptionPage.js b/src/pages/tasks/TaskDescriptionPage.js
index 0ccd3821571e..382e8d80d4ad 100644
--- a/src/pages/tasks/TaskDescriptionPage.js
+++ b/src/pages/tasks/TaskDescriptionPage.js
@@ -12,11 +12,14 @@ import reportPropTypes from '../reportPropTypes';
 import styles from '../../styles/styles';
 import compose from '../../libs/compose';
 import * as Task from '../../libs/actions/Task';
+import * as ReportUtils from '../../libs/ReportUtils';
 import CONST from '../../CONST';
 import focusAndUpdateMultilineInputRange from '../../libs/focusAndUpdateMultilineInputRange';
 import * as Browser from '../../libs/Browser';
-import * as ReportUtils from '../../libs/ReportUtils';
 import Navigation from '../../libs/Navigation/Navigation';
+import FullPageNotFoundView from '../../components/BlockingViews/FullPageNotFoundView';
+import withCurrentUserPersonalDetails from '../../components/withCurrentUserPersonalDetails';
+import withReportOrNotFound from '../home/report/withReportOrNotFound';
 
 const propTypes = {
     /** Current user session */
@@ -55,37 +58,54 @@ function TaskDescriptionPage(props) {
     }
     const inputRef = useRef(null);
 
+    const isOpen = ReportUtils.isOpenTaskReport(props.report);
+    const canModifyTask = Task.canModifyTask(props.report, props.currentUserPersonalDetails.accountID);
+    const isTaskNonEditable = ReportUtils.isTaskReport(props.report) && (!canModifyTask || !isOpen);
+
     return (
         <ScreenWrapper
             includeSafeAreaPaddingBottom={false}
             onEntryTransitionEnd={() => focusAndUpdateMultilineInputRange(inputRef.current)}
             shouldEnableMaxHeight
         >
-            <HeaderWithBackButton title={props.translate('task.task')} />
-            <Form
-                style={[styles.flexGrow1, styles.ph5]}
-                formID={ONYXKEYS.FORMS.EDIT_TASK_FORM}
-                validate={validate}
-                onSubmit={submit}
-                submitButtonText={props.translate('common.save')}
-                enabledWhenOffline
-            >
-                <View style={[styles.mb4]}>
-                    <TextInput
-                        accessibilityRole={CONST.ACCESSIBILITY_ROLE.TEXT}
-                        inputID="description"
-                        name="description"
-                        label={props.translate('newTaskPage.descriptionOptional')}
-                        accessibilityLabel={props.translate('newTaskPage.descriptionOptional')}
-                        defaultValue={(props.report && props.report.description) || ''}
-                        ref={(el) => (inputRef.current = el)}
-                        autoGrowHeight
-                        submitOnEnter={!Browser.isMobile()}
-                        containerStyles={[styles.autoGrowHeightMultilineInput]}
-                        textAlignVertical="top"
-                    />
-                </View>
-            </Form>
+            {({didScreenTransitionEnd}) => (
+                <FullPageNotFoundView shouldShow={isTaskNonEditable}>
+                    <HeaderWithBackButton title={props.translate('task.task')} />
+                    <Form
+                        style={[styles.flexGrow1, styles.ph5]}
+                        formID={ONYXKEYS.FORMS.EDIT_TASK_FORM}
+                        validate={validate}
+                        onSubmit={submit}
+                        submitButtonText={props.translate('common.save')}
+                        enabledWhenOffline
+                    >
+                        <View style={[styles.mb4]}>
+                            <TextInput
+                                accessibilityRole={CONST.ACCESSIBILITY_ROLE.TEXT}
+                                inputID="description"
+                                name="description"
+                                label={props.translate('newTaskPage.descriptionOptional')}
+                                accessibilityLabel={props.translate('newTaskPage.descriptionOptional')}
+                                defaultValue={(props.report && props.report.description) || ''}
+                                ref={(el) => {
+                                    // if we wrap the page with FullPageNotFoundView we need to explicitly handle focusing on text input
+                                    if (!el) {
+                                        return;
+                                    }
+                                    if (!inputRef.current && didScreenTransitionEnd) {
+                                        focusAndUpdateMultilineInputRange(el);
+                                    }
+                                    inputRef.current = el;
+                                }}
+                                autoGrowHeight
+                                submitOnEnter={!Browser.isMobile()}
+                                containerStyles={[styles.autoGrowHeightMultilineInput]}
+                                textAlignVertical="top"
+                            />
+                        </View>
+                    </Form>
+                </FullPageNotFoundView>
+            )}
         </ScreenWrapper>
     );
 }
@@ -95,6 +115,8 @@ TaskDescriptionPage.defaultProps = defaultProps;
 
 export default compose(
     withLocalize,
+    withCurrentUserPersonalDetails,
+    withReportOrNotFound,
     withOnyx({
         session: {
             key: ONYXKEYS.SESSION,
diff --git a/src/pages/tasks/TaskTitlePage.js b/src/pages/tasks/TaskTitlePage.js
index 9e3edd370264..9a7a36a1e119 100644
--- a/src/pages/tasks/TaskTitlePage.js
+++ b/src/pages/tasks/TaskTitlePage.js
@@ -13,9 +13,12 @@ import styles from '../../styles/styles';
 import reportPropTypes from '../reportPropTypes';
 import compose from '../../libs/compose';
 import * as Task from '../../libs/actions/Task';
-import CONST from '../../CONST';
 import * as ReportUtils from '../../libs/ReportUtils';
+import CONST from '../../CONST';
 import Navigation from '../../libs/Navigation/Navigation';
+import FullPageNotFoundView from '../../components/BlockingViews/FullPageNotFoundView';
+import withCurrentUserPersonalDetails from '../../components/withCurrentUserPersonalDetails';
+import withReportOrNotFound from '../home/report/withReportOrNotFound';
 
 const propTypes = {
     /** The report currently being looked at */
@@ -67,6 +70,9 @@ function TaskTitlePage(props) {
     }
 
     const inputRef = useRef(null);
+    const isOpen = ReportUtils.isOpenTaskReport(props.report);
+    const canModifyTask = Task.canModifyTask(props.report, props.currentUserPersonalDetails.accountID);
+    const isTaskNonEditable = ReportUtils.isTaskReport(props.report) && (!canModifyTask || !isOpen);
 
     return (
         <ScreenWrapper
@@ -74,27 +80,37 @@ function TaskTitlePage(props) {
             onEntryTransitionEnd={() => inputRef.current && inputRef.current.focus()}
             shouldEnableMaxHeight
         >
-            <HeaderWithBackButton title={props.translate('task.task')} />
-            <Form
-                style={[styles.flexGrow1, styles.ph5]}
-                formID={ONYXKEYS.FORMS.EDIT_TASK_FORM}
-                validate={validate}
-                onSubmit={submit}
-                submitButtonText={props.translate('common.save')}
-                enabledWhenOffline
-            >
-                <View style={[styles.mb4]}>
-                    <TextInput
-                        accessibilityRole={CONST.ACCESSIBILITY_ROLE.TEXT}
-                        inputID="title"
-                        name="title"
-                        label={props.translate('task.title')}
-                        accessibilityLabel={props.translate('task.title')}
-                        defaultValue={(props.report && props.report.reportName) || ''}
-                        ref={(el) => (inputRef.current = el)}
-                    />
-                </View>
-            </Form>
+            {({didScreenTransitionEnd}) => (
+                <FullPageNotFoundView shouldShow={isTaskNonEditable}>
+                    <HeaderWithBackButton title={props.translate('task.task')} />
+                    <Form
+                        style={[styles.flexGrow1, styles.ph5]}
+                        formID={ONYXKEYS.FORMS.EDIT_TASK_FORM}
+                        validate={validate}
+                        onSubmit={submit}
+                        submitButtonText={props.translate('common.save')}
+                        enabledWhenOffline
+                    >
+                        <View style={[styles.mb4]}>
+                            <TextInput
+                                accessibilityRole={CONST.ACCESSIBILITY_ROLE.TEXT}
+                                inputID="title"
+                                name="title"
+                                label={props.translate('task.title')}
+                                accessibilityLabel={props.translate('task.title')}
+                                defaultValue={(props.report && props.report.reportName) || ''}
+                                ref={(el) => {
+                                    if (!el) return;
+                                    if (!inputRef.current && didScreenTransitionEnd) {
+                                        el.focus();
+                                    }
+                                    inputRef.current = el;
+                                }}
+                            />
+                        </View>
+                    </Form>
+                </FullPageNotFoundView>
+            )}
         </ScreenWrapper>
     );
 }
@@ -104,6 +120,8 @@ TaskTitlePage.defaultProps = defaultProps;
 
 export default compose(
     withLocalize,
+    withCurrentUserPersonalDetails,
+    withReportOrNotFound,
     withOnyx({
         session: {
             key: ONYXKEYS.SESSION,