diff --git a/src/libs/ReportUtils.js b/src/libs/ReportUtils.js
index eee3d7558666..2b7612d9aaba 100644
--- a/src/libs/ReportUtils.js
+++ b/src/libs/ReportUtils.js
@@ -1389,6 +1389,30 @@ function updateOptimisticParentReportAction(parentReportAction, lastVisibleActio
     };
 }
 
+/**
+ * Get optimistic data of parent report action
+ * @param {String} reportID The reportID of the report that is updated
+ * @param {String} lastVisibleActionCreated Last visible action created of the child report
+ * @param {String} type The type of action in the child report
+ * @returns {Object}
+ */
+const getOptimisticDataForParentReportAction = (reportID, lastVisibleActionCreated, type) => {
+    const report = getReport(reportID);
+    if (report && report.parentReportActionID) {
+        const parentReportAction = ReportActionsUtils.getParentReportAction(report);
+        if (parentReportAction && parentReportAction.reportActionID) {
+            return {
+                onyxMethod: Onyx.METHOD.MERGE,
+                key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${report.parentReportID}`,
+                value: {
+                    [parentReportAction.reportActionID]: updateOptimisticParentReportAction(parentReportAction, lastVisibleActionCreated, type),
+                },
+            };
+        }
+    }
+    return {};
+};
+
 /**
  * Builds an optimistic reportAction for the parent report when a task is created
  * @param {String} taskReportID - Report ID of the task
@@ -2591,6 +2615,7 @@ export {
     buildOptimisticAddCommentReportAction,
     buildOptimisticTaskCommentReportAction,
     updateOptimisticParentReportAction,
+    getOptimisticDataForParentReportAction,
     shouldReportBeInOptionList,
     getChatByParticipants,
     getChatByParticipantsByLoginList,
diff --git a/src/libs/actions/Report.js b/src/libs/actions/Report.js
index 3c2a7be271cd..fa6f249ba7d0 100644
--- a/src/libs/actions/Report.js
+++ b/src/libs/actions/Report.js
@@ -321,19 +321,10 @@ function addActions(reportID, text = '', file) {
         },
     ];
 
-    // Optimistically update the parent report action if the report is a thread
-    const report = ReportUtils.getReport(reportID);
-    if (report && report.parentReportActionID) {
-        const parentReportAction = ReportActionsUtils.getParentReportAction(report);
-        if (parentReportAction && parentReportAction.reportActionID) {
-            optimisticData.push({
-                onyxMethod: Onyx.METHOD.MERGE,
-                key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${report.parentReportID}`,
-                value: {
-                    [parentReportAction.reportActionID]: ReportUtils.updateOptimisticParentReportAction(parentReportAction, currentTime, CONST.RED_BRICK_ROAD_PENDING_ACTION.ADD),
-                },
-            });
-        }
+    // Update optimistic data for parent report action if the report is a child report
+    const optimisticParentReportData = ReportUtils.getOptimisticDataForParentReportAction(reportID, currentTime, CONST.RED_BRICK_ROAD_PENDING_ACTION.ADD);
+    if (!_.isEmpty(optimisticParentReportData)) {
+        optimisticData.push(optimisticParentReportData);
     }
 
     // Update the timezone if it's been 5 minutes from the last time the user added a comment
@@ -959,22 +950,10 @@ function deleteReportComment(reportID, reportAction) {
         },
     ];
 
-    const report = ReportUtils.getReport(reportID);
-    if (report && report.parentReportActionID) {
-        const parentReportAction = ReportActionsUtils.getParentReportAction(report);
-        if (parentReportAction && parentReportAction.reportActionID) {
-            optimisticData.push({
-                onyxMethod: Onyx.METHOD.MERGE,
-                key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${report.parentReportID}`,
-                value: {
-                    [parentReportAction.reportActionID]: ReportUtils.updateOptimisticParentReportAction(
-                        parentReportAction,
-                        optimisticReport.lastVisibleActionCreated,
-                        CONST.RED_BRICK_ROAD_PENDING_ACTION.DELETE,
-                    ),
-                },
-            });
-        }
+    // Update optimistic data for parent report action if the report is a child report
+    const optimisticParentReportData = ReportUtils.getOptimisticDataForParentReportAction(reportID, optimisticReport.lastVisibleActionCreated, CONST.RED_BRICK_ROAD_PENDING_ACTION.DELETE);
+    if (!_.isEmpty(optimisticParentReportData)) {
+        optimisticData.push(optimisticParentReportData);
     }
 
     const parameters = {
diff --git a/src/libs/actions/Task.js b/src/libs/actions/Task.js
index ee33161558f6..8126d4b12dad 100644
--- a/src/libs/actions/Task.js
+++ b/src/libs/actions/Task.js
@@ -242,6 +242,12 @@ function completeTask(taskReportID, taskTitle) {
         },
     ];
 
+    // Update optimistic data for parent report action
+    const optimisticParentReportData = ReportUtils.getOptimisticDataForParentReportAction(taskReportID, completedTaskReportAction.created, CONST.RED_BRICK_ROAD_PENDING_ACTION.ADD);
+    if (!_.isEmpty(optimisticParentReportData)) {
+        optimisticData.push(optimisticParentReportData);
+    }
+
     API.write(
         'CompleteTask',
         {
@@ -312,6 +318,12 @@ function reopenTask(taskReportID, taskTitle) {
         },
     ];
 
+    // Update optimistic data for parent report action
+    const optimisticParentReportData = ReportUtils.getOptimisticDataForParentReportAction(taskReportID, reopenedTaskReportAction.created, CONST.RED_BRICK_ROAD_PENDING_ACTION.ADD);
+    if (!_.isEmpty(optimisticParentReportData)) {
+        optimisticData.push(optimisticParentReportData);
+    }
+
     API.write(
         'ReopenTask',
         {