diff --git a/src/components/ReportActionItem/TaskPreview.tsx b/src/components/ReportActionItem/TaskPreview.tsx
index f5604b030aa..7a6e4942b17 100644
--- a/src/components/ReportActionItem/TaskPreview.tsx
+++ b/src/components/ReportActionItem/TaskPreview.tsx
@@ -99,7 +99,7 @@ function TaskPreview({taskReport, taskReportID, action, contextMenuAnchor, chatR
                         <Checkbox
                             style={[styles.mr2]}
                             isChecked={isTaskCompleted}
-                            disabled={!Task.canModifyTask(taskReport, currentUserPersonalDetails.accountID)}
+                            disabled={!Task.canModifyTask(taskReport, currentUserPersonalDetails.accountID) || !Task.canActionTask(taskReport, currentUserPersonalDetails.accountID)}
                             onPress={Session.checkIfActionIsAllowed(() => {
                                 if (isTaskCompleted) {
                                     Task.reopenTask(taskReport);
diff --git a/src/components/ReportActionItem/TaskView.tsx b/src/components/ReportActionItem/TaskView.tsx
index 941e7cd5c61..2822e34a3d0 100644
--- a/src/components/ReportActionItem/TaskView.tsx
+++ b/src/components/ReportActionItem/TaskView.tsx
@@ -56,6 +56,7 @@ function TaskView({report, ...props}: TaskViewProps) {
     const isCompleted = ReportUtils.isCompletedTaskReport(report);
     const isOpen = ReportUtils.isOpenTaskReport(report);
     const canModifyTask = Task.canModifyTask(report, props.currentUserPersonalDetails.accountID);
+    const canActionTask = Task.canActionTask(report, props.currentUserPersonalDetails.accountID);
     const disableState = !canModifyTask;
     const isDisableInteractive = !canModifyTask || !isOpen;
     const personalDetails = usePersonalDetails() || CONST.EMPTY_OBJECT;
@@ -113,7 +114,7 @@ function TaskView({report, ...props}: TaskViewProps) {
                                             containerBorderRadius={8}
                                             caretSize={16}
                                             accessibilityLabel={taskTitle || translate('task.task')}
-                                            disabled={!canModifyTask}
+                                            disabled={!canModifyTask || !canActionTask}
                                         />
                                         <View style={[styles.flexRow, styles.flex1]}>
                                             <Text
diff --git a/src/components/TaskHeaderActionButton.tsx b/src/components/TaskHeaderActionButton.tsx
index 9a68db58adc..3841d559311 100644
--- a/src/components/TaskHeaderActionButton.tsx
+++ b/src/components/TaskHeaderActionButton.tsx
@@ -34,7 +34,7 @@ function TaskHeaderActionButton({report, session}: TaskHeaderActionButtonProps)
         <View style={[styles.flexRow, styles.alignItemsCenter, styles.justifyContentEnd]}>
             <Button
                 success
-                isDisabled={!Task.canModifyTask(report, session?.accountID ?? -1)}
+                isDisabled={!Task.canModifyTask(report, session?.accountID ?? -1) || !Task.canActionTask(report, session?.accountID ?? -1)}
                 text={translate(ReportUtils.isCompletedTaskReport(report) ? 'task.markAsIncomplete' : 'task.markAsComplete')}
                 onPress={Session.checkIfActionIsAllowed(() => {
                     // If we're already navigating to these task editing pages, early return not to mark as completed, otherwise we would have not found page.
diff --git a/src/libs/actions/Task.ts b/src/libs/actions/Task.ts
index 723bdbe1b13..41ccfee1786 100644
--- a/src/libs/actions/Task.ts
+++ b/src/libs/actions/Task.ts
@@ -1150,6 +1150,13 @@ function canModifyTask(taskReport: OnyxEntry<OnyxTypes.Report>, sessionAccountID
     return !isEmptyObject(taskReport) && ReportUtils.isAllowedToComment(taskReport);
 }
 
+/**
+ * Check if you can change the status of the task (mark complete or incomplete). Only the task owner and task assignee can do this.
+ */
+function canActionTask(taskReport: OnyxEntry<OnyxTypes.Report>, sessionAccountID: number): boolean {
+    return sessionAccountID === getTaskOwnerAccountID(taskReport) || sessionAccountID === getTaskAssigneeAccountID(taskReport);
+}
+
 function clearTaskErrors(reportID: string) {
     const report = ReportConnection.getAllReports()?.[`${ONYXKEYS.COLLECTION.REPORT}${reportID}`];
 
@@ -1191,6 +1198,7 @@ export {
     getTaskAssigneeAccountID,
     clearTaskErrors,
     canModifyTask,
+    canActionTask,
     setNewOptimisticAssignee,
 };