diff --git a/src/admin/components/forms/field-types/Upload/SelectExisting/index.tsx b/src/admin/components/forms/field-types/Upload/SelectExisting/index.tsx
index 473ddbfd67..061a35f515 100644
--- a/src/admin/components/forms/field-types/Upload/SelectExisting/index.tsx
+++ b/src/admin/components/forms/field-types/Upload/SelectExisting/index.tsx
@@ -8,6 +8,7 @@ import usePayloadAPI from '../../../../../hooks/usePayloadAPI';
 import ListControls from '../../../../elements/ListControls';
 import Paginator from '../../../../elements/Paginator';
 import UploadGallery from '../../../../elements/UploadGallery';
+import { Field } from '../../../../../../fields/config/types';
 import { Props } from './types';
 
 import './index.scss';
@@ -45,7 +46,7 @@ const SelectExistingUploadModal: React.FC<Props> = (props) => {
   const [{ data }, { setParams }] = usePayloadAPI(apiURL, {});
 
   useEffect(() => {
-    setFields(formatFields(collection));
+    setFields(formatFields(collection) as Field[]);
   }, [collection]);
 
   useEffect(() => {
diff --git a/src/admin/components/views/collections/Edit/formatFields.tsx b/src/admin/components/views/collections/Edit/formatFields.tsx
index 9513c0bfe0..9b51e5ff09 100644
--- a/src/admin/components/views/collections/Edit/formatFields.tsx
+++ b/src/admin/components/views/collections/Edit/formatFields.tsx
@@ -1,8 +1,8 @@
-const formatFields = (collection, isEditing) => {
-  const fields = isEditing
-    ? collection.fields.filter(({ name }) => name !== 'id')
-    : collection.fields;
-  return fields;
-};
+import { SanitizedCollectionConfig } from '../../../../../collections/config/types';
+import { Field } from '../../../../../fields/config/types';
+
+const formatFields = (collection: SanitizedCollectionConfig, isEditing: boolean): Field[] => (isEditing
+  ? collection.fields.filter(({ name }) => name !== 'id')
+  : collection.fields);
 
 export default formatFields;
diff --git a/src/admin/components/views/collections/List/formatFields.tsx b/src/admin/components/views/collections/List/formatFields.tsx
index a16b8a2087..2785433834 100644
--- a/src/admin/components/views/collections/List/formatFields.tsx
+++ b/src/admin/components/views/collections/List/formatFields.tsx
@@ -1,5 +1,8 @@
-const formatFields = (config) => {
-  const hasIdField = config.fields.findIndex(({ name }) => name === 'id') > -1;
+import { SanitizedCollectionConfig } from '../../../../../collections/config/types';
+import { Field } from '../../../../../fields/config/types';
+
+const formatFields = (config: SanitizedCollectionConfig): (Field | { name: string, label: string, type: string })[] => {
+  const hasID = config.fields.findIndex(({ name }) => name === 'id') > -1;
   let fields = config.fields.reduce((formatted, field) => {
     if (field.hidden === true || field?.admin?.disabled === true) {
       return formatted;
@@ -9,7 +12,7 @@ const formatFields = (config) => {
       ...formatted,
       field,
     ];
-  }, hasIdField ? [] : [{ name: 'id', label: 'ID', type: 'text' }]);
+  }, hasID ? [] : [{ name: 'id', label: 'ID', type: 'text' }]);
 
   if (config.timestamps) {
     fields = fields.concat([
diff --git a/src/collections/buildSchema.ts b/src/collections/buildSchema.ts
index 985ec2bd7e..df5d3c0541 100644
--- a/src/collections/buildSchema.ts
+++ b/src/collections/buildSchema.ts
@@ -12,11 +12,6 @@ const buildCollectionSchema = (collection: SanitizedCollectionConfig, config: Sa
     { timestamps: collection.timestamps !== false, ...schemaOptions },
   );
 
-  if (collection.idType) {
-    const idSchemaType = collection.idType === 'number' ? Number : String;
-    schema.add({ _id: idSchemaType });
-  }
-
   schema.plugin(paginate, { useEstimatedCount: true })
     .plugin(buildQueryPlugin);
 
diff --git a/src/collections/graphql/init.ts b/src/collections/graphql/init.ts
index fccc240b22..a9b1610177 100644
--- a/src/collections/graphql/init.ts
+++ b/src/collections/graphql/init.ts
@@ -10,6 +10,7 @@ import {
 import formatName from '../../graphql/utilities/formatName';
 import buildPaginatedListType from '../../graphql/schema/buildPaginatedListType';
 import { BaseFields } from './types';
+import { getCollectionIDType } from '../../graphql/schema/buildMutationInputType';
 
 function registerCollections(): void {
   const {
@@ -28,13 +29,11 @@ function registerCollections(): void {
           singular,
           plural,
         },
-        fields: initialFields,
+        fields,
         timestamps,
       },
     } = collection;
 
-    const fields = initialFields.filter(({ name }) => name !== 'id');
-
     const singularLabel = formatName(singular);
     let pluralLabel = formatName(plural);
 
@@ -49,23 +48,20 @@ function registerCollections(): void {
 
     collection.graphQL = {};
 
-    const idField = initialFields.find(({ name }) => name === 'id');
-    const idType = idField && idField.type === 'number' ? GraphQLInt : GraphQLString;
+    const idField = fields.find(({ name }) => name === 'id');
+    const idType = getCollectionIDType(collection.config);
 
-    const baseFields: BaseFields = {
-      id: {
-        type: new GraphQLNonNull(idType),
-      },
-    };
+    const baseFields: BaseFields = {};
 
     const whereInputFields = [
       ...fields,
     ];
 
-    if (idField) {
+    if (!idField) {
+      baseFields.id = { type: idType };
       whereInputFields.push({
         name: 'id',
-        type: idField.type,
+        type: 'text',
       });
     }
 
@@ -129,7 +125,7 @@ function registerCollections(): void {
 
     collection.graphQL.updateMutationInputType = new GraphQLNonNull(this.buildMutationInputType(
       `${singularLabel}Update`,
-      fields,
+      fields.filter((field) => field.name !== 'id'),
       `${singularLabel}Update`,
       true,
     ));
diff --git a/src/config/validate.ts b/src/config/validate.ts
index f53daa1a6b..f9e9bae304 100644
--- a/src/config/validate.ts
+++ b/src/config/validate.ts
@@ -1,9 +1,10 @@
+import { ValidationResult } from 'joi';
 import schema from './schema';
 import collectionSchema from '../collections/config/schema';
 import Logger from '../utilities/logger';
 import { SanitizedConfig } from './types';
 import { SanitizedCollectionConfig } from '../collections/config/types';
-import fieldSchema from '../fields/config/schema';
+import fieldSchema, { idField } from '../fields/config/schema';
 import { SanitizedGlobalConfig } from '../globals/config/types';
 import globalSchema from '../globals/config/schema';
 
@@ -12,7 +13,17 @@ const logger = Logger();
 const validateFields = (context: string, entity: SanitizedCollectionConfig | SanitizedGlobalConfig): string[] => {
   const errors: string[] = [];
   entity.fields.forEach((field) => {
+    let idResult: Partial<ValidationResult> = { error: null };
+    if (field.name === 'id') {
+      idResult = idField.validate(field, { abortEarly: false });
+    }
+
     const result = fieldSchema.validate(field, { abortEarly: false });
+    if (idResult.error) {
+      idResult.error.details.forEach(({ message }) => {
+        errors.push(`${context} "${entity.slug}" > Field "${field.name}" > ${message}`);
+      });
+    }
     if (result.error) {
       result.error.details.forEach(({ message }) => {
         errors.push(`${context} "${entity.slug}" > Field "${field.name}" > ${message}`);
diff --git a/src/fields/config/schema.ts b/src/fields/config/schema.ts
index 20f90f6446..69821eb02c 100644
--- a/src/fields/config/schema.ts
+++ b/src/fields/config/schema.ts
@@ -47,6 +47,13 @@ export const baseField = joi.object().keys({
   admin: baseAdminFields.default(),
 }).default();
 
+export const idField = baseField.keys({
+  name: joi.string().valid('id'),
+  type: joi.string().valid('text', 'number', 'email', 'date'),
+  required: joi.not(false, 0).default(true),
+  localized: joi.invalid(true),
+});
+
 export const text = baseField.keys({
   type: joi.string().valid('text').required(),
   name: joi.string().required(),
diff --git a/src/graphql/schema/buildMutationInputType.ts b/src/graphql/schema/buildMutationInputType.ts
index a752a2ce65..3b176e19d8 100644
--- a/src/graphql/schema/buildMutationInputType.ts
+++ b/src/graphql/schema/buildMutationInputType.ts
@@ -12,16 +12,28 @@ import {
   GraphQLType,
 } from 'graphql';
 import { GraphQLJSON } from 'graphql-type-json';
+import { GraphQLDateTime, GraphQLEmailAddress } from 'graphql-scalars';
 import withNullableType from './withNullableType';
 import formatName from '../utilities/formatName';
 import combineParentName from '../utilities/combineParentName';
 import { ArrayField, Field, FieldWithSubFields, GroupField, RelationshipField, RowField, SelectField } from '../../fields/config/types';
 import { toWords } from '../../utilities/formatLabels';
 import payload from '../../index';
+import { SanitizedCollectionConfig } from '../../collections/config/types';
 
-const getCollectionIDType = (config) => {
+export const getCollectionIDType = (config: SanitizedCollectionConfig): GraphQLScalarType => {
   const idField = config.fields.find(({ name }) => name === 'id');
-  return idField && idField.type === 'number' ? GraphQLInt : GraphQLString;
+  if (!idField) return GraphQLString;
+  switch (idField.type) {
+    case 'number':
+      return GraphQLInt;
+    case 'email':
+      return GraphQLEmailAddress;
+    case 'date':
+      return GraphQLDateTime;
+    default:
+      return GraphQLString;
+  }
 };
 
 function buildMutationInputType(name: string, fields: Field[], parentName: string, forceNullable = false): GraphQLInputObjectType {
@@ -77,7 +89,7 @@ function buildMutationInputType(name: string, fields: Field[], parentName: strin
     relationship: (field: RelationshipField) => {
       const { relationTo } = field;
       type PayloadGraphQLRelationshipType = GraphQLScalarType | GraphQLList<GraphQLScalarType> | GraphQLInputObjectType;
-      let type: PayloadGraphQLRelationshipType = GraphQLString;
+      let type: PayloadGraphQLRelationshipType;
 
       if (Array.isArray(relationTo)) {
         const fullName = `${combineParentName(parentName, field.label === false ? toWords(field.name, true) : field.label)}RelationshipInput`;