diff --git a/src/models/attachment.ts b/src/models/attachment.ts
index d2765c4a..c5c9933c 100644
--- a/src/models/attachment.ts
+++ b/src/models/attachment.ts
@@ -1,9 +1,8 @@
 import AbstractModel from './abstractModel'
 import UserModel, {type IUser} from './user'
 import FileModel, {type IFile} from './file'
-import type {IAbstract} from './abstractModel'
 
-export interface IAttachment extends IAbstract {
+export interface IAttachment extends AbstractModel {
 	id: number
 	taskId: number
 	createdBy: IUser
diff --git a/src/models/avatar.ts b/src/models/avatar.ts
index e6a67091..411e3cd3 100644
--- a/src/models/avatar.ts
+++ b/src/models/avatar.ts
@@ -1,8 +1,8 @@
-import AbstractModel, { type IAbstract } from './abstractModel'
+import AbstractModel from './abstractModel'
 
 export type AvatarProvider = 'default' | 'initials' | 'gravatar' | 'marble' | 'upload'
 
-export interface IAvatar extends IAbstract {
+export interface IAvatar extends AbstractModel {
 	avatarProvider: AvatarProvider
 }
 
diff --git a/src/models/backgroundImage.ts b/src/models/backgroundImage.ts
index a5dbf8d7..21be0773 100644
--- a/src/models/backgroundImage.ts
+++ b/src/models/backgroundImage.ts
@@ -1,6 +1,6 @@
-import AbstractModel, { type IAbstract } from './abstractModel'
+import AbstractModel from './abstractModel'
 
-export interface IBackgroundImage extends IAbstract {
+export interface IBackgroundImage extends AbstractModel {
 	id: number
 	url: string
 	thumb: string
diff --git a/src/models/bucket.ts b/src/models/bucket.ts
index 89bca3e9..f4b43759 100644
--- a/src/models/bucket.ts
+++ b/src/models/bucket.ts
@@ -1,8 +1,8 @@
-import AbstractModel, { type IAbstract } from './abstractModel'
+import AbstractModel from './abstractModel'
 import UserModel, { type IUser } from './user'
 import TaskModel, { type ITask } from './task'
 
-export interface IBucket extends IAbstract {
+export interface IBucket extends AbstractModel {
 	id: number
 	title: string
 	listId: number
diff --git a/src/models/caldavToken.ts b/src/models/caldavToken.ts
index 5604eb42..b2186b0a 100644
--- a/src/models/caldavToken.ts
+++ b/src/models/caldavToken.ts
@@ -1,6 +1,6 @@
-import AbstractModel, { type IAbstract } from './abstractModel'
+import AbstractModel from './abstractModel'
 
-export interface ICaldavToken extends IAbstract {
+export interface ICaldavToken extends AbstractModel {
 	id: number;
 	created: Date;
 }
diff --git a/src/models/emailUpdate.ts b/src/models/emailUpdate.ts
index 2258176e..4f6f4385 100644
--- a/src/models/emailUpdate.ts
+++ b/src/models/emailUpdate.ts
@@ -1,6 +1,6 @@
 import AbstractModel from './abstractModel'
 
-interface IEmailUpdate {
+interface IEmailUpdate extends AbstractModel {
 	newEmail: string
 	password: string
 }
diff --git a/src/models/file.ts b/src/models/file.ts
index c6248baf..81240a79 100644
--- a/src/models/file.ts
+++ b/src/models/file.ts
@@ -1,6 +1,6 @@
 import AbstractModel from './abstractModel'
 
-export interface IFile {
+export interface IFile extends AbstractModel {
 	id: number
 	mime: string
 	name: string
diff --git a/src/models/label.ts b/src/models/label.ts
index a4dd7270..75a104e3 100644
--- a/src/models/label.ts
+++ b/src/models/label.ts
@@ -4,7 +4,7 @@ import {colorIsDark} from '@/helpers/color/colorIsDark'
 
 const DEFAULT_LABEL_BACKGROUND_COLOR = 'e8e8e8'
 
-export interface ILabel {
+export interface ILabel extends AbstractModel {
 	id: number
 	title: string
 	hexColor: string
diff --git a/src/models/labelTask.ts b/src/models/labelTask.ts
index 80dee9de..2179f9a8 100644
--- a/src/models/labelTask.ts
+++ b/src/models/labelTask.ts
@@ -1,6 +1,6 @@
 import AbstractModel from './abstractModel'
 
-interface ILabel {
+interface ILabel extends AbstractModel {
 	id: number
 	taskId: number
 	labelId: number
diff --git a/src/models/linkShare.ts b/src/models/linkShare.ts
index 1b1ae880..10100ee4 100644
--- a/src/models/linkShare.ts
+++ b/src/models/linkShare.ts
@@ -1,8 +1,8 @@
-import AbstractModel, { type IAbstract } from './abstractModel'
+import AbstractModel from './abstractModel'
 import UserModel, { type IUser } from './user'
 import {RIGHTS, type Right} from '@/models/constants/rights'
 
-export interface ILinkShare extends IAbstract {
+export interface ILinkShare extends AbstractModel {
 	id: number
 	hash: string
 	right: Right
diff --git a/src/models/list.ts b/src/models/list.ts
index a3426f84..7ced8929 100644
--- a/src/models/list.ts
+++ b/src/models/list.ts
@@ -1,4 +1,4 @@
-import AbstractModel, { type IAbstract } from '@/models/abstractModel'
+import AbstractModel from '@/models/abstractModel'
 import TaskModel, { type ITask } from '@/models/task'
 import UserModel, { type IUser } from '@/models/user'
 import SubscriptionModel, { type ISubscription } from '@/models/subscription'
@@ -6,7 +6,7 @@ import type { INamespace } from '@/models/namespace'
 
 import {getSavedFilterIdFromListId} from '@/helpers/savedFilter'
 
-export interface IList extends IAbstract {
+export interface IList extends AbstractModel {
 	id: number
 	title: string
 	description: string
diff --git a/src/models/listDuplicateModel.ts b/src/models/listDuplicateModel.ts
index bc3272ce..40896537 100644
--- a/src/models/listDuplicateModel.ts
+++ b/src/models/listDuplicateModel.ts
@@ -2,7 +2,7 @@ import AbstractModel from './abstractModel'
 import ListModel, { type IList } from './list'
 import type { INamespace } from './namespace'
 
-export interface ListDuplicate {
+export interface ListDuplicate extends AbstractModel {
 	listId: number
 	namespaceId: INamespace['id']
 	list: IList
diff --git a/src/models/namespace.ts b/src/models/namespace.ts
index ee120a96..5d8c608c 100644
--- a/src/models/namespace.ts
+++ b/src/models/namespace.ts
@@ -1,9 +1,9 @@
-import AbstractModel, { type IAbstract } from './abstractModel'
+import AbstractModel from './abstractModel'
 import ListModel, { type IList } from './list'
 import UserModel, { type IUser } from './user'
 import SubscriptionModel, { type ISubscription } from '@/models/subscription'
 
-export interface INamespace extends IAbstract {
+export interface INamespace extends AbstractModel {
 	id: number
 	title: string
 	description: string
diff --git a/src/models/notification.ts b/src/models/notification.ts
index a2156320..4d9f48ab 100644
--- a/src/models/notification.ts
+++ b/src/models/notification.ts
@@ -40,7 +40,7 @@ interface NotificationMemberAdded extends Notification {
 	team: ITeam
 }
 
-export interface INotification {
+export interface INotification extends AbstractModel {
 	id: number
 	name: string
 	notification: NotificationTask | NotificationAssigned | NotificationDeleted | NotificationCreated | NotificationMemberAdded
diff --git a/src/models/passwordReset.ts b/src/models/passwordReset.ts
index 0dc8ebed..dd05f37a 100644
--- a/src/models/passwordReset.ts
+++ b/src/models/passwordReset.ts
@@ -1,6 +1,6 @@
 import AbstractModel from './abstractModel'
 
-export interface IPasswordReset {
+export interface IPasswordReset extends AbstractModel {
 	token: string
 	newPassword: string
 	email: string
diff --git a/src/models/passwordUpdate.ts b/src/models/passwordUpdate.ts
index a91a59c1..51640e32 100644
--- a/src/models/passwordUpdate.ts
+++ b/src/models/passwordUpdate.ts
@@ -1,6 +1,6 @@
 import AbstractModel from '@/models/abstractModel'
 
-export interface IPasswordUpdate {
+export interface IPasswordUpdate extends AbstractModel {
 	newPassword: string
 	oldPassword: string
 }
diff --git a/src/models/savedFilter.ts b/src/models/savedFilter.ts
index 60c0521c..16861306 100644
--- a/src/models/savedFilter.ts
+++ b/src/models/savedFilter.ts
@@ -1,7 +1,7 @@
 import AbstractModel from '@/models/abstractModel'
 import UserModel, { type IUser } from '@/models/user'
 
-export interface ISavedFilter {
+export interface ISavedFilter extends AbstractModel {
 	id: 0
 	title: string
 	description: string
diff --git a/src/models/subscription.ts b/src/models/subscription.ts
index 013aef7d..bd52d0d6 100644
--- a/src/models/subscription.ts
+++ b/src/models/subscription.ts
@@ -1,7 +1,7 @@
 import AbstractModel from '@/models/abstractModel'
 import UserModel, { type IUser } from '@/models/user'
 
-export interface ISubscription {
+export interface ISubscription extends AbstractModel {
 	id: number
 	entity: string // FIXME: correct type?
 	entityId: number // FIXME: correct type?
diff --git a/src/models/task.ts b/src/models/task.ts
index 518c53a2..92003d6d 100644
--- a/src/models/task.ts
+++ b/src/models/task.ts
@@ -26,7 +26,7 @@ export interface RepeatAfter {
 	amount: number
 }
 
-export interface ITask {
+export interface ITask extends AbstractModel {
 	id: number
 	title: string
 	description: string
diff --git a/src/models/taskAssignee.ts b/src/models/taskAssignee.ts
index 800e50af..5ceb15ad 100644
--- a/src/models/taskAssignee.ts
+++ b/src/models/taskAssignee.ts
@@ -2,7 +2,7 @@ import AbstractModel from './abstractModel'
 import type { ITask } from './task'
 import type { IUser } from './user'
 
-export interface ITaskAssignee {
+export interface ITaskAssignee extends AbstractModel {
 	created: Date
 	userId: IUser['id']
 	taskId: ITask['id']
diff --git a/src/models/taskComment.ts b/src/models/taskComment.ts
index 93d58958..15ca3b6d 100644
--- a/src/models/taskComment.ts
+++ b/src/models/taskComment.ts
@@ -2,7 +2,7 @@ import AbstractModel from './abstractModel'
 import UserModel, { type IUser } from './user'
 import type { ITask } from './task'
 
-export interface ITaskComment {
+export interface ITaskComment extends AbstractModel {
 	id: number
 	taskId: ITask['id']
 	comment: string
diff --git a/src/models/taskRelation.ts b/src/models/taskRelation.ts
index 2f3b54cb..e86e9dab 100644
--- a/src/models/taskRelation.ts
+++ b/src/models/taskRelation.ts
@@ -19,7 +19,7 @@ export const RELATION_KINDS = [...Object.values(RELATION_KIND)] as const
 
 export type RelationKind = typeof RELATION_KINDS[number]
 
-export interface ITaskRelationModel {
+export interface ITaskRelationModel extends AbstractModel {
 	id: number
 	otherTaskId: ITask['id']
 	taskId: ITask['id']
diff --git a/src/models/team.ts b/src/models/team.ts
index e76fa216..b81c99d8 100644
--- a/src/models/team.ts
+++ b/src/models/team.ts
@@ -3,7 +3,7 @@ import UserModel, { type IUser } from './user'
 import TeamMemberModel, { type ITeamMember } from './teamMember'
 import {RIGHTS, type Right} from '@/models/constants/rights'
 
-export interface ITeam {
+export interface ITeam extends AbstractModel {
 	id: number
 	name: string
 	description: string
diff --git a/src/models/teamList.ts b/src/models/teamList.ts
index 0dce79b6..d3bbb42a 100644
--- a/src/models/teamList.ts
+++ b/src/models/teamList.ts
@@ -1,7 +1,7 @@
 import TeamShareBaseModel from './teamShareBase'
 import type { IList } from './list'
 
-export interface ITeamList {
+export interface ITeamList extends TeamShareBaseModel {
 	listId: IList['id']
 }
 
diff --git a/src/models/teamMember.ts b/src/models/teamMember.ts
index ee6eb161..f699408a 100644
--- a/src/models/teamMember.ts
+++ b/src/models/teamMember.ts
@@ -1,7 +1,7 @@
 import UserModel from './user'
 import type { IList } from './list'
 
-export interface ITeamMember {
+export interface ITeamMember extends UserModel {
 	admin: boolean
 	teamId: IList['id']
 }
diff --git a/src/models/teamNamespace.ts b/src/models/teamNamespace.ts
index a550bbee..2064d141 100644
--- a/src/models/teamNamespace.ts
+++ b/src/models/teamNamespace.ts
@@ -1,7 +1,7 @@
 import TeamShareBaseModel from './teamShareBase'
 import type { INamespace } from './namespace'
 
-export interface ITeamNamespace {
+export interface ITeamNamespace extends TeamShareBaseModel {
 	namespaceId: INamespace['id']
 }
 
diff --git a/src/models/teamShareBase.ts b/src/models/teamShareBase.ts
index 3983905c..c3e94370 100644
--- a/src/models/teamShareBase.ts
+++ b/src/models/teamShareBase.ts
@@ -2,7 +2,7 @@ import AbstractModel from './abstractModel'
 import {RIGHTS, type Right} from '@/models/constants/rights'
 import type { ITeam } from './team'
 
-export interface ITeamShareBase {
+export interface ITeamShareBase extends AbstractModel {
 	teamId: ITeam['id']
 	right: Right
 
diff --git a/src/models/totp.ts b/src/models/totp.ts
index ab641598..a47044c5 100644
--- a/src/models/totp.ts
+++ b/src/models/totp.ts
@@ -1,6 +1,6 @@
 import AbstractModel from './abstractModel'
 
-export interface ITotp {
+export interface ITotp extends AbstractModel {
 	secret: string
 	enabled: boolean
 	url: string
diff --git a/src/models/user.ts b/src/models/user.ts
index f3908149..eaa472a7 100644
--- a/src/models/user.ts
+++ b/src/models/user.ts
@@ -1,7 +1,7 @@
 import AbstractModel from './abstractModel'
 import UserSettingsModel, { type IUserSettings } from '@/models/userSettings'
 
-export interface IUser {
+export interface IUser extends AbstractModel {
 	id: number
 	email: string
 	username: string
diff --git a/src/models/userList.ts b/src/models/userList.ts
index 1bc597ad..d0b9cbd3 100644
--- a/src/models/userList.ts
+++ b/src/models/userList.ts
@@ -1,7 +1,7 @@
 import UserShareBaseModel from './userShareBase'
 import type { IList } from './list'
 
-export interface IUserList {
+export interface IUserList extends UserShareBaseModel {
 	listId: IList['id']
 }
 
diff --git a/src/models/userNamespace.ts b/src/models/userNamespace.ts
index a21995d1..2a11a35e 100644
--- a/src/models/userNamespace.ts
+++ b/src/models/userNamespace.ts
@@ -1,7 +1,7 @@
 import UserShareBaseModel from './userShareBase'
 import type { INamespace } from './namespace'
 
-export interface IUserNamespace {
+export interface IUserNamespace extends UserShareBaseModel {
 	namespaceId: INamespace['id']
 }
 
diff --git a/src/models/userSettings.ts b/src/models/userSettings.ts
index 4e7fcede..a5db3f80 100644
--- a/src/models/userSettings.ts
+++ b/src/models/userSettings.ts
@@ -2,7 +2,7 @@
 import AbstractModel from './abstractModel'
 import type { IList } from './list'
 
-export interface IUserSettings {
+export interface IUserSettings extends AbstractModel {
 	name: string
 	emailRemindersEnabled: boolean
 	discoverableByName: boolean
diff --git a/src/models/userShareBase.ts b/src/models/userShareBase.ts
index fadeb894..8eda9ed2 100644
--- a/src/models/userShareBase.ts
+++ b/src/models/userShareBase.ts
@@ -2,7 +2,7 @@ import AbstractModel from './abstractModel'
 import {RIGHTS, type Right} from '@/models/constants/rights'
 import type { IUser } from './user'
 
-export interface IUserShareBase {
+export interface IUserShareBase extends AbstractModel {
 	userId: IUser['id']
 	right: Right