diff --git a/shared/types/core.ts b/shared/types/core.ts
new file mode 100644
index 0000000000..3b7f68d505
--- /dev/null
+++ b/shared/types/core.ts
@@ -0,0 +1,12 @@
+export interface ErrorDto {
+  message: string
+}
+
+export interface SuccessMessageDto {
+  message: string
+}
+
+export interface PrivateFormErrorDto extends ErrorDto {
+  isPageFound: true
+  formTitle: string
+}
diff --git a/shared/types/form/form_feedback.ts b/shared/types/form/form_feedback.ts
new file mode 100644
index 0000000000..840e4ca201
--- /dev/null
+++ b/shared/types/form/form_feedback.ts
@@ -0,0 +1,43 @@
+import { Merge } from 'type-fest'
+import { DateString } from '../generic'
+import { FormDto } from './form'
+
+export type SubmitFormFeedbackBodyDto = {
+  isPreview?: boolean
+  rating: number
+  comment?: string
+}
+
+/**
+ * Typing for individual form feedback
+ */
+export type FormFeedbackBase = {
+  rating: number
+  comment?: string
+  formId: FormDto['_id']
+  created?: Date
+  lastModified?: Date
+}
+
+// Convert to serialized version.
+export type FormFeedbackDto = Merge<
+  FormFeedbackBase,
+  { created?: DateString; lastModified?: DateString }
+>
+
+export type ProcessedFeedbackMeta = {
+  index: number
+  timestamp: number
+  rating: number
+  comment: string
+  // Note that this date is not a DateString, it is actually "D MMM YYYY"
+  // format.
+  date: string
+  dateShort: string
+}
+
+export type FormFeedbackMetaDto = {
+  average?: string
+  count: number
+  feedback: ProcessedFeedbackMeta[]
+}
diff --git a/src/app/modules/feedback/__tests__/feedback.service.spec.ts b/src/app/modules/feedback/__tests__/feedback.service.spec.ts
index ef0aa91fa7..0fe5c831a9 100644
--- a/src/app/modules/feedback/__tests__/feedback.service.spec.ts
+++ b/src/app/modules/feedback/__tests__/feedback.service.spec.ts
@@ -8,7 +8,7 @@ import getFormFeedbackModel from 'src/app/models/form_feedback.server.model'
 
 import dbHandler from 'tests/unit/backend/helpers/jest-db'
 
-import { GetFormFeedbackDto } from '../../../../types/api/form_feedback'
+import { FormFeedbackMetaDto } from '../../../../types/api/form_feedback'
 import { DatabaseError } from '../../core/core.errors'
 import * as FeedbackService from '../feedback.service'
 
@@ -201,7 +201,7 @@ describe('feedback.service', () => {
       const actualResult = await FeedbackService.getFormFeedbacks(mockFormId)
 
       // Assert
-      const expectedResult: GetFormFeedbackDto = {
+      const expectedResult: FormFeedbackMetaDto = {
         count: 1,
         average: '3.00',
         feedback: [
diff --git a/src/app/modules/feedback/feedback.service.ts b/src/app/modules/feedback/feedback.service.ts
index 25ec230c45..d39df1e4f4 100644
--- a/src/app/modules/feedback/feedback.service.ts
+++ b/src/app/modules/feedback/feedback.service.ts
@@ -4,8 +4,8 @@ import mongoose from 'mongoose'
 import { ResultAsync } from 'neverthrow'
 
 import { IFormFeedbackSchema } from '../../../types'
-import { GetFormFeedbackDto } from '../../../types/api/form_feedback'
-import { ProcessedFeedback } from '../../../types/form_feedback'
+import { FormFeedbackMetaDto } from '../../../types/api/form_feedback'
+import { ProcessedFeedbackMeta } from '../../../types/form_feedback'
 import { createLoggerWithLabel } from '../../config/logger'
 import getFormFeedbackModel from '../../models/form_feedback.server.model'
 import { getMongoErrorMessage } from '../../utils/handle-mongo-error'
@@ -61,7 +61,7 @@ export const getFormFeedbackStream = (
  */
 export const getFormFeedbacks = (
   formId: string,
-): ResultAsync<GetFormFeedbackDto, DatabaseError> => {
+): ResultAsync<FormFeedbackMetaDto, DatabaseError> => {
   return ResultAsync.fromPromise(
     FormFeedbackModel.find({ formId }).sort({ created: 1 }).exec(),
     (error) => {
@@ -89,7 +89,7 @@ export const getFormFeedbacks = (
     let totalRating = 0
     const processedFeedback = feedbacks.map((fb, idx) => {
       totalRating += fb.rating
-      const response: ProcessedFeedback = {
+      const response: ProcessedFeedbackMeta = {
         // 1-based indexing.
         index: idx + 1,
         timestamp: moment(fb.created).valueOf(),
diff --git a/src/app/modules/form/admin-form/__tests__/admin-form.controller.spec.ts b/src/app/modules/form/admin-form/__tests__/admin-form.controller.spec.ts
index 838bf3ba60..b34f5f53a2 100644
--- a/src/app/modules/form/admin-form/__tests__/admin-form.controller.spec.ts
+++ b/src/app/modules/form/admin-form/__tests__/admin-form.controller.spec.ts
@@ -69,7 +69,7 @@ import {
   FieldCreateDto,
   FieldUpdateDto,
 } from 'src/types/api'
-import { GetFormFeedbackDto } from 'src/types/api/form_feedback'
+import { FormFeedbackMetaDto } from 'src/types/api/form_feedback'
 
 import {
   generateDefaultField,
@@ -2421,7 +2421,7 @@ describe('admin-form.controller', () => {
     it('should return 200 with feedback response successfully', async () => {
       // Arrange
       const mockRes = expressHandler.mockResponse()
-      const expectedFormFeedback: GetFormFeedbackDto = {
+      const expectedFormFeedback: FormFeedbackMetaDto = {
         count: 212,
         feedback: [
           {
diff --git a/src/app/modules/form/admin-form/admin-form.controller.ts b/src/app/modules/form/admin-form/admin-form.controller.ts
index b02bd5330f..75b76ea13d 100644
--- a/src/app/modules/form/admin-form/admin-form.controller.ts
+++ b/src/app/modules/form/admin-form/admin-form.controller.ts
@@ -36,6 +36,7 @@ import {
   FieldCreateDto,
   FieldUpdateDto,
   FormDto,
+  FormFeedbackMetaDto,
   FormFieldDto,
   FormUpdateParams,
   PermissionsUpdateDto,
@@ -590,9 +591,10 @@ export const handleCountFormSubmissions = [
  * @returns 422 when user in session cannot be retrieved from the database
  * @returns 500 when database error occurs
  */
-export const handleCountFormFeedback: ControllerHandler<{
-  formId: string
-}> = async (req, res) => {
+export const handleCountFormFeedback: ControllerHandler<
+  { formId: string },
+  number | ErrorDto
+> = async (req, res) => {
   const { formId } = req.params
   const sessionUserId = (req.session as Express.AuthedSession).user._id
 
@@ -733,9 +735,10 @@ export const handleStreamFormFeedback: ControllerHandler<{
  * @returns 422 when user in session cannot be retrieved from the database
  * @returns 500 when database error occurs
  */
-export const handleGetFormFeedback: ControllerHandler<{
-  formId: string
-}> = (req, res) => {
+export const handleGetFormFeedback: ControllerHandler<
+  { formId: string },
+  FormFeedbackMetaDto | ErrorDto
+> = (req, res) => {
   const { formId } = req.params
   const sessionUserId = (req.session as Express.AuthedSession).user._id
 
diff --git a/src/public/modules/forms/helpers/FeedbackCsvGenerator.ts b/src/public/modules/forms/helpers/FeedbackCsvGenerator.ts
index 9a12c26ffc..b15e9f5f7a 100644
--- a/src/public/modules/forms/helpers/FeedbackCsvGenerator.ts
+++ b/src/public/modules/forms/helpers/FeedbackCsvGenerator.ts
@@ -1,6 +1,6 @@
 import moment from 'moment-timezone'
 
-import { FormFeedbackResponseDto } from '../../../../types/api/form_feedback'
+import { FormFeedbackDto } from '../../../../../shared/types/form/form_feedback'
 
 import { CsvGenerator } from './CsvGenerator'
 
@@ -16,7 +16,7 @@ export class FeedbackCsvGenerator extends CsvGenerator {
   /**
    * Generate a string representing a form feedback CSV line record
    */
-  addLineFromFeedback(feedback: FormFeedbackResponseDto) {
+  addLineFromFeedback(feedback: FormFeedbackDto) {
     const createdAt = moment(feedback.created)
       .tz('Asia/Singapore')
       .format('DD MMM YYYY hh:mm:ss A')
diff --git a/src/public/modules/forms/helpers/__tests__/FeedbackCsvGenerator.spec.ts b/src/public/modules/forms/helpers/__tests__/FeedbackCsvGenerator.spec.ts
index 599d2a2dd2..76bdc31ab8 100644
--- a/src/public/modules/forms/helpers/__tests__/FeedbackCsvGenerator.spec.ts
+++ b/src/public/modules/forms/helpers/__tests__/FeedbackCsvGenerator.spec.ts
@@ -1,7 +1,8 @@
 import { ObjectId } from 'bson'
 import moment from 'moment-timezone'
 
-import { FormFeedbackResponseDto } from '../../../../../types/api/form_feedback'
+import { FormFeedbackDto } from '../../../../../../shared/types/form/form_feedback'
+import { DateString } from '../../../../../../shared/types/generic'
 import { FeedbackCsvGenerator } from '../FeedbackCsvGenerator'
 
 describe('FeedbackCsvGenerator', () => {
@@ -21,12 +22,14 @@ describe('FeedbackCsvGenerator', () => {
     it('should add line successfully if created and lastmodified dates are provided', () => {
       // Arrange
       const feedbackCsv = new FeedbackCsvGenerator(1)
-      const feedback: FormFeedbackResponseDto = {
+      const feedback: FormFeedbackDto = {
         rating: 3,
         comment: 'some comment',
         formId: new ObjectId().toHexString(),
-        created: new Date('2019-11-05T13:12:14'),
-        lastModified: new Date('2019-11-05T13:12:14'),
+        created: new Date('2019-11-05T13:12:14').toISOString() as DateString,
+        lastModified: new Date(
+          '2019-11-05T13:12:14',
+        ).toISOString() as DateString,
       }
       const insertedCreatedDate = moment(feedback.created)
         .tz('Asia/Singapore')
@@ -47,7 +50,7 @@ describe('FeedbackCsvGenerator', () => {
     it('should add line successfully if comment, created and lastmodified dates are not provided', () => {
       // Arrange
       const feedbackCsv = new FeedbackCsvGenerator(1)
-      const feedback: FormFeedbackResponseDto = {
+      const feedback: FormFeedbackDto = {
         rating: 3,
         formId: new ObjectId().toHexString(),
       }
diff --git a/src/public/services/FormFeedbackService.ts b/src/public/services/FormFeedbackService.ts
index f7372fdaff..6690bfae21 100644
--- a/src/public/services/FormFeedbackService.ts
+++ b/src/public/services/FormFeedbackService.ts
@@ -1,10 +1,11 @@
 import axios from 'axios'
 
+import { SuccessMessageDto } from '../../../shared/types/core'
 import {
-  FormFeedbackPostDto,
-  FormFeedbackResponseDto,
-  GetFormFeedbackDto,
-} from '../../types/api/form_feedback'
+  FormFeedbackDto,
+  FormFeedbackMetaDto,
+  SubmitFormFeedbackBodyDto,
+} from '../../../shared/types/form/form_feedback'
 import { FeedbackCsvGenerator } from '../modules/forms/helpers/FeedbackCsvGenerator'
 
 // Exported for testing
@@ -15,14 +16,14 @@ export const ADMIN_FORM_ENDPOINT = '/api/v3/admin/forms'
  * Post feedback for a given form.
  * @param formId the id of the form to post feedback for
  * @param feedbackToPost object containing the feedback
- * @returns the posted feedback
+ * @returns success message
  */
 export const postFeedback = async (
   formId: string,
-  feedbackToPost: FormFeedbackPostDto,
-): Promise<FormFeedbackResponseDto> => {
+  feedbackToPost: SubmitFormFeedbackBodyDto,
+): Promise<SuccessMessageDto> => {
   return axios
-    .post<FormFeedbackResponseDto>(
+    .post<SuccessMessageDto>(
       `${PUBLIC_FORM_ENDPOINT}/${formId}/feedback`,
       feedbackToPost,
     )
@@ -36,9 +37,9 @@ export const postFeedback = async (
  */
 export const getFeedback = async (
   formId: string,
-): Promise<GetFormFeedbackDto> => {
+): Promise<FormFeedbackMetaDto> => {
   return axios
-    .get<GetFormFeedbackDto>(`${ADMIN_FORM_ENDPOINT}/${formId}/feedback`)
+    .get<FormFeedbackMetaDto>(`${ADMIN_FORM_ENDPOINT}/${formId}/feedback`)
     .then(({ data }) => data)
 }
 
@@ -65,7 +66,7 @@ export const downloadFeedback = async (
   const expectedNumResponses = await countFeedback(formId)
 
   return axios
-    .get<FormFeedbackResponseDto[]>(
+    .get<FormFeedbackDto[]>(
       `${ADMIN_FORM_ENDPOINT}/${formId}/feedback/download`,
     )
     .then(({ data }) => {
diff --git a/src/types/api/core.ts b/src/types/api/core.ts
index 3aec7b4572..7be86ef920 100644
--- a/src/types/api/core.ts
+++ b/src/types/api/core.ts
@@ -1,8 +1 @@
-export interface ErrorDto {
-  message: string
-}
-
-export interface PrivateFormErrorDto extends ErrorDto {
-  isPageFound: true
-  formTitle: string
-}
+export * from '../../../shared/types/core'
diff --git a/src/types/api/form_feedback.ts b/src/types/api/form_feedback.ts
index 47d6aa6313..956fbcbba1 100644
--- a/src/types/api/form_feedback.ts
+++ b/src/types/api/form_feedback.ts
@@ -1,21 +1 @@
-import { ProcessedFeedback } from '../form_feedback'
-
-export type FormFeedbackPostDto = {
-  isPreview?: boolean
-  rating: number
-  comment?: string
-}
-
-export type FormFeedbackResponseDto = {
-  rating: number
-  comment?: string
-  formId: string
-  created?: Date
-  lastModified?: Date
-}
-
-export type GetFormFeedbackDto = {
-  average?: string
-  count: number
-  feedback: ProcessedFeedback[]
-}
+export { FormFeedbackMetaDto } from '../../../shared/types/form/form_feedback'
diff --git a/src/types/api/index.ts b/src/types/api/index.ts
index 483fa1912e..ed9b2da691 100644
--- a/src/types/api/index.ts
+++ b/src/types/api/index.ts
@@ -7,3 +7,4 @@ export * from './examples'
 export * from './encrypt_submission'
 export * from './email_submission'
 export * from './submission'
+export * from './form_feedback'
diff --git a/src/types/form_feedback.ts b/src/types/form_feedback.ts
index 10c9307181..dcd9258671 100644
--- a/src/types/form_feedback.ts
+++ b/src/types/form_feedback.ts
@@ -1,21 +1,16 @@
 import { Document, Model, QueryCursor } from 'mongoose'
+import { Merge } from 'type-fest'
+
+import { FormFeedbackBase } from '../../shared/types/form/form_feedback'
 
 import { IFormSchema } from './form'
 
-export type ProcessedFeedback = {
-  index: number
-  timestamp: number
-  rating: number
-  comment: string
-  date: string
-  dateShort: string
-}
+export { ProcessedFeedbackMeta } from '../../shared/types/form/form_feedback'
 
-export interface IFormFeedback {
-  formId: IFormSchema['_id']
-  rating: number
-  comment?: string
-}
+export type IFormFeedback = Merge<
+  FormFeedbackBase,
+  { formId: IFormSchema['_id'] }
+>
 export interface IFormFeedbackSchema extends IFormFeedback, Document {
   created?: Date
   lastModified?: Date
@@ -26,13 +21,6 @@ export interface IFormFeedbackDocument extends IFormFeedbackSchema {
   lastModified: Date
 }
 
-export interface IFormFeedbackSchema extends Document, IFormFeedback {}
-
-export interface IFormFeedbackDoc extends IFormFeedbackSchema {
-  lastModified: Date
-  created: Date
-}
-
 export interface IFormFeedbackModel extends Model<IFormFeedbackSchema> {
   /**
    * Returns a cursor for all feedback for the form with formId.