diff --git a/src/libs/ReportUtils.ts b/src/libs/ReportUtils.ts
index dcc5ad7a0d623..31f112104f8eb 100644
--- a/src/libs/ReportUtils.ts
+++ b/src/libs/ReportUtils.ts
@@ -9874,7 +9874,7 @@ function prepareOnboardingOnyxData(
                 onyxMethod: Onyx.METHOD.MERGE,
                 key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${targetChatReportID}`,
                 value: {
-                    [taskReportAction.reportAction.reportActionID]: {pendingAction: null},
+                    [taskReportAction.reportAction.reportActionID]: {pendingAction: null, isOptimisticAction: null},
                 },
             },
             {
@@ -9910,7 +9910,7 @@ function prepareOnboardingOnyxData(
                 onyxMethod: Onyx.METHOD.MERGE,
                 key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${currentTask.reportID}`,
                 value: {
-                    [completedTaskReportAction.reportActionID]: {pendingAction: null},
+                    [completedTaskReportAction.reportActionID]: {pendingAction: null, isOptimisticAction: null},
                 },
             });
         }
@@ -9968,7 +9968,7 @@ function prepareOnboardingOnyxData(
             onyxMethod: Onyx.METHOD.MERGE,
             key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${targetChatReportID}`,
             value: {
-                [textCommentAction.reportActionID]: {pendingAction: null},
+                [textCommentAction.reportActionID]: {pendingAction: null, isOptimisticAction: null},
             },
         });
     }
@@ -10156,7 +10156,7 @@ function prepareOnboardingOnyxData(
             onyxMethod: Onyx.METHOD.MERGE,
             key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${targetChatReportID}`,
             value: {
-                [welcomeSignOffCommentAction.reportActionID]: {pendingAction: null},
+                [welcomeSignOffCommentAction.reportActionID]: {pendingAction: null, isOptimisticAction: null},
             },
         });
 
diff --git a/tests/actions/ReportTest.ts b/tests/actions/ReportTest.ts
index e7c4271c14888..c5ffd3b12eaa2 100644
--- a/tests/actions/ReportTest.ts
+++ b/tests/actions/ReportTest.ts
@@ -68,6 +68,7 @@ describe('actions/Report', () => {
     beforeEach(() => {
         HttpUtils.xhr = originalXHR;
         const promise = Onyx.clear().then(jest.useRealTimers);
+
         if (getIsUsingFakeTimers()) {
             // flushing pending timers
             // Onyx.clear() promise is resolved in batch which happens after the current microtasks cycle
@@ -1606,4 +1607,45 @@ describe('actions/Report', () => {
             expect(derivedConciergeChatReportID).toBe(conciergeChatReport2.reportID);
         });
     });
+
+    describe('completeOnboarding', () => {
+        const TEST_USER_LOGIN = 'test@gmail.com';
+        const TEST_USER_ACCOUNT_ID = 1;
+        global.fetch = TestHelper.getGlobalFetchMock();
+
+        it('should set "isOptimisticAction" to false/null for all actions in admins report after completing onboarding setup', async () => {
+            await Onyx.set(ONYXKEYS.SESSION, {email: TEST_USER_LOGIN, accountID: TEST_USER_ACCOUNT_ID});
+            await waitForBatchedUpdates();
+
+            const adminsChatReportID = '7957055873634067';
+            const onboardingPolicyID = 'A70D00C752416807';
+            const engagementChoice = CONST.INTRO_CHOICES.MANAGE_TEAM;
+
+            Report.completeOnboarding({
+                engagementChoice,
+                onboardingMessage: CONST.ONBOARDING_MESSAGES[engagementChoice],
+                adminsChatReportID,
+                onboardingPolicyID,
+                companySize: CONST.ONBOARDING_COMPANY_SIZE.MICRO,
+                userReportedIntegration: null,
+            });
+
+            await waitForBatchedUpdates();
+
+            const reportActions: OnyxEntry<OnyxTypes.ReportActions> = await new Promise((resolve) => {
+                const connection = Onyx.connect({
+                    key: `${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${adminsChatReportID}`,
+                    callback: (id) => {
+                        Onyx.disconnect(connection);
+                        resolve(id);
+                    },
+                });
+            });
+            expect(reportActions).not.toBeNull();
+            expect(reportActions).not.toBeUndefined();
+            Object.values(reportActions ?? {}).forEach((action) => {
+                expect(action.isOptimisticAction).toBeFalsy();
+            });
+        });
+    });
 });