diff --git a/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.schema.tsx b/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.schema.tsx
index 72ed5507e..7b2406028 100644
--- a/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.schema.tsx
+++ b/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.schema.tsx
@@ -12,10 +12,9 @@ const Schema = Yup.object().shape({
   rate: Yup.number()
     .label(intl.get('project_task.schema.label.rate'))
     .required(),
-  cost_estimate: Yup.number().required(),
-  estimate_minutes: Yup.string().label(
-    intl.get('project_task.schema.label.task_house'),
-  ),
+  estimate_hours: Yup.string()
+    .label(intl.get('project_task.schema.label.estimate_hours'))
+    .nullable(),
 });
 
 export const CreateProjectTaskFormSchema = Schema;
diff --git a/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.tsx b/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.tsx
index 5710dcbe9..5b465fb14 100644
--- a/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.tsx
+++ b/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskForm.tsx
@@ -6,16 +6,14 @@ import { Intent } from '@blueprintjs/core';
 import { AppToaster } from '@/components';
 import { CreateProjectTaskFormSchema } from './ProjectTaskForm.schema';
 import { useProjectTaskFormContext } from './ProjectTaskFormProvider';
-import { transformToValue } from './utils';
 import { compose, transformToForm } from '@/utils';
 import ProjectTaskFormContent from './ProjectTaskFormContent';
 import withDialogActions from '@/containers/Dialog/withDialogActions';
 
 const defaultInitialValues = {
   name: '',
-  charge_type: 'fixed',
-  estimate_minutes: '',
-  cost_estimate: 0,
+  charge_type: 'TIME',
+  estimate_hours: '',
   rate: '0.00',
 };
 
@@ -46,7 +44,7 @@ function ProjectTaskForm({
 
   // Handles the form submit.
   const handleFormSubmit = (values, { setSubmitting, setErrors }) => {
-    const form = transformToValue(values);
+    const form = {...values};
 
     // Handle request response success.
     const onSuccess = (response) => {
diff --git a/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskFormFields.tsx b/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskFormFields.tsx
index 023b4ba70..f58961ac9 100644
--- a/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskFormFields.tsx
+++ b/src/containers/Projects/containers/ProjectTaskFormDialog/ProjectTaskFormFields.tsx
@@ -11,7 +11,7 @@ import {
 } from '@/components';
 import { EstimateAmount } from './utils';
 import { taskChargeOptions } from '../common/modalChargeOptions';
-import { ChangeTypesSelect } from '../../components';
+import { ProjectTaskChargeTypeSelect } from '../../components';
 import withCurrentOrganization from '@/containers/Organization/withCurrentOrganization';
 import { compose } from '@/utils';
 
@@ -40,9 +40,9 @@ function ProjectTaskFormFields({
         <Col xs={4}>
           <FFormGroup
             label={<T id={'project_task.dialog.estimated_hours'} />}
-            name={'estimate_minutes'}
+            name={'estimate_hours'}
           >
-            <FInputGroup name="estimate_minutes" />
+            <FInputGroup name="estimate_hours" />
           </FFormGroup>
         </Col>
         {/*------------ Charge -----------*/}
@@ -53,7 +53,7 @@ function ProjectTaskFormFields({
             label={<T id={'project_task.dialog.charge'} />}
           >
             <ControlGroup>
-              <ChangeTypesSelect
+              <ProjectTaskChargeTypeSelect
                 name="charge_type"
                 items={taskChargeOptions}
                 popoverProps={{ minimal: true }}
diff --git a/src/containers/Projects/containers/ProjectTaskFormDialog/utils.tsx b/src/containers/Projects/containers/ProjectTaskFormDialog/utils.tsx
index 8fb8de99f..061c54654 100644
--- a/src/containers/Projects/containers/ProjectTaskFormDialog/utils.tsx
+++ b/src/containers/Projects/containers/ProjectTaskFormDialog/utils.tsx
@@ -9,7 +9,7 @@ export function EstimateAmount({ baseCurrency }) {
   const { values } = useFormikContext();
 
   // Calculate estimate amount.
-  const estimatedAmount = _.multiply(values.rate, values.estimate_minutes);
+  const estimatedAmount = _.multiply(values.rate, values.estimate_hours);
 
   return (
     <EstimatedAmountBase>
@@ -39,28 +39,6 @@ export function EstimateAmount({ baseCurrency }) {
   );
 }
 
-export function transformToValue(values) {
-  switch (values.charge_type) {
-    case 'hourly_rate': {
-      return {
-        ...values,
-        cost_estimate: values.estimate_minutes * values.rate,
-      };
-    }
-    case 'fixed_price': {
-      return {
-        ...values,
-        cost_estimate: values.rate,
-      };
-    }
-    default: {
-      return {
-        ...values,
-      };
-    }
-  }
-}
-
 const EstimatedAmountBase = styled.div`
   display: flex;
   justify-content: flex-end;