diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index 7ded1b8f4..37a654f8e 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -12,7 +12,7 @@ Decimal.set({
 })
 
 const constants = {
-  DB_VERSION: '0087-add_dlt_users_table',
+  DB_VERSION: '0088-merge_dlt_tables',
   DECAY_START_TIME: new Date('2021-05-13 17:46:31-0000'), // GMT+0
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
diff --git a/database/entity/0087-add_dlt_users_table/DltUser.ts b/database/entity/0087-add_dlt_users_table/DltUser.ts
index 483437d58..2b9dccb3f 100644
--- a/database/entity/0087-add_dlt_users_table/DltUser.ts
+++ b/database/entity/0087-add_dlt_users_table/DltUser.ts
@@ -1,5 +1,6 @@
 import { BaseEntity, Entity, PrimaryGeneratedColumn, Column, OneToOne, JoinColumn } from 'typeorm'
-import { User } from '../User'
+// this Entity was removed in current code and isn't any longer compatible with user
+import { User } from './User'
 
 @Entity('dlt_users', { engine: 'InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci' })
 export class DltUser extends BaseEntity {
diff --git a/database/entity/0088-merge_dlt_tables/DltTransaction.ts b/database/entity/0088-merge_dlt_tables/DltTransaction.ts
new file mode 100644
index 000000000..6525c229d
--- /dev/null
+++ b/database/entity/0088-merge_dlt_tables/DltTransaction.ts
@@ -0,0 +1,52 @@
+import { BaseEntity, Entity, PrimaryGeneratedColumn, Column, OneToOne, JoinColumn } from 'typeorm'
+import { Transaction } from '../Transaction'
+import { User } from '../User'
+import { TransactionLink } from '../TransactionLink'
+
+@Entity('dlt_transactions', { engine: 'InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci' })
+export class DltTransaction extends BaseEntity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({ name: 'transaction_id', type: 'int', unsigned: true, nullable: true })
+  transactionId?: number | null
+
+  @Column({ name: 'user_id', type: 'int', unsigned: true, nullable: true })
+  userId?: number | null
+
+  @Column({ name: 'transaction_link_id', type: 'int', unsigned: true, nullable: true })
+  transactionLinkId?: number | null
+
+  @Column({
+    name: 'message_id',
+    length: 64,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  messageId: string
+
+  @Column({ name: 'verified', type: 'bool', nullable: false, default: false })
+  verified: boolean
+
+  @Column({ name: 'created_at', default: () => 'CURRENT_TIMESTAMP(3)', nullable: false })
+  createdAt: Date
+
+  @Column({ name: 'verified_at', nullable: true, default: null, type: 'datetime' })
+  verifiedAt: Date | null
+
+  @Column({ name: 'error', type: 'text', nullable: true })
+  error: string | null
+
+  @OneToOne(() => Transaction, (transaction) => transaction.dltTransaction)
+  @JoinColumn({ name: 'transaction_id' })
+  transaction?: Transaction | null
+
+  @OneToOne(() => User, (user) => user.dltTransaction)
+  @JoinColumn({ name: 'user_id' })
+  user?: User | null
+
+  @OneToOne(() => TransactionLink, (transactionLink) => transactionLink.dltTransaction)
+  @JoinColumn({ name: 'transaction_link_id' })
+  transactionLink?: TransactionLink | null
+}
diff --git a/database/entity/0088-merge_dlt_tables/TransactionLink.ts b/database/entity/0088-merge_dlt_tables/TransactionLink.ts
new file mode 100644
index 000000000..3258e346f
--- /dev/null
+++ b/database/entity/0088-merge_dlt_tables/TransactionLink.ts
@@ -0,0 +1,74 @@
+import { Decimal } from 'decimal.js-light'
+import {
+  BaseEntity,
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  DeleteDateColumn,
+  OneToOne,
+  JoinColumn,
+} from 'typeorm'
+import { DecimalTransformer } from '../../src/typeorm/DecimalTransformer'
+import { DltTransaction } from '../DltTransaction'
+
+@Entity('transaction_links')
+export class TransactionLink extends BaseEntity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({ unsigned: true, nullable: false })
+  userId: number
+
+  @Column({
+    type: 'decimal',
+    precision: 40,
+    scale: 20,
+    nullable: false,
+    transformer: DecimalTransformer,
+  })
+  amount: Decimal
+
+  @Column({
+    type: 'decimal',
+    name: 'hold_available_amount',
+    precision: 40,
+    scale: 20,
+    nullable: false,
+    transformer: DecimalTransformer,
+  })
+  holdAvailableAmount: Decimal
+
+  @Column({ length: 255, nullable: false, collation: 'utf8mb4_unicode_ci' })
+  memo: string
+
+  @Column({ length: 24, nullable: false, collation: 'utf8mb4_unicode_ci' })
+  code: string
+
+  @Column({
+    type: 'datetime',
+    nullable: false,
+  })
+  createdAt: Date
+
+  @DeleteDateColumn()
+  deletedAt: Date | null
+
+  @Column({
+    type: 'datetime',
+    nullable: false,
+  })
+  validUntil: Date
+
+  @Column({
+    type: 'datetime',
+    nullable: true,
+  })
+  redeemedAt: Date | null
+
+  @Column({ type: 'int', unsigned: true, nullable: true })
+  redeemedBy: number | null
+
+  @OneToOne(() => DltTransaction, (dlt) => dlt.transactionLinkId)
+  @JoinColumn({ name: 'id', referencedColumnName: 'transactionLinkId' })
+  dltTransaction?: DltTransaction | null
+}
diff --git a/database/entity/0088-merge_dlt_tables/User.ts b/database/entity/0088-merge_dlt_tables/User.ts
new file mode 100644
index 000000000..d133cdad8
--- /dev/null
+++ b/database/entity/0088-merge_dlt_tables/User.ts
@@ -0,0 +1,181 @@
+import {
+  BaseEntity,
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  DeleteDateColumn,
+  OneToMany,
+  JoinColumn,
+  OneToOne,
+  Geometry,
+  ManyToOne,
+} from 'typeorm'
+import { Contribution } from '../Contribution'
+import { ContributionMessage } from '../ContributionMessage'
+import { UserContact } from '../UserContact'
+import { UserRole } from '../UserRole'
+import { GeometryTransformer } from '../../src/typeorm/GeometryTransformer'
+import { Community } from '../Community'
+import { DltTransaction } from '../DltTransaction'
+
+@Entity('users', { engine: 'InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci' })
+export class User extends BaseEntity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({ type: 'bool', default: false })
+  foreign: boolean
+
+  @Column({
+    name: 'gradido_id',
+    length: 36,
+    nullable: false,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  gradidoID: string
+
+  @Column({
+    name: 'community_uuid',
+    type: 'char',
+    length: 36,
+    nullable: true,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  communityUuid: string
+
+  @ManyToOne(() => Community, (community) => community.users)
+  @JoinColumn({ name: 'community_uuid', referencedColumnName: 'communityUuid' })
+  community: Community | null
+
+  @Column({
+    name: 'alias',
+    length: 20,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  alias: string
+
+  @OneToOne(() => UserContact, (emailContact: UserContact) => emailContact.user)
+  @JoinColumn({ name: 'email_id' })
+  emailContact: UserContact
+
+  @Column({ name: 'email_id', type: 'int', unsigned: true, nullable: true, default: null })
+  emailId: number | null
+
+  @Column({
+    name: 'first_name',
+    length: 255,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  firstName: string
+
+  @Column({
+    name: 'last_name',
+    length: 255,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  lastName: string
+
+  @Column({ name: 'gms_publish_name', type: 'int', unsigned: true, nullable: false, default: 0 })
+  gmsPublishName: number
+
+  @Column({ name: 'humhub_publish_name', type: 'int', unsigned: true, nullable: false, default: 0 })
+  humhubPublishName: number
+
+  @Column({ name: 'created_at', default: () => 'CURRENT_TIMESTAMP(3)', nullable: false })
+  createdAt: Date
+
+  @DeleteDateColumn({ name: 'deleted_at', nullable: true })
+  deletedAt: Date | null
+
+  @Column({ type: 'bigint', default: 0, unsigned: true })
+  password: BigInt
+
+  @Column({
+    name: 'password_encryption_type',
+    type: 'int',
+    unsigned: true,
+    nullable: false,
+    default: 0,
+  })
+  passwordEncryptionType: number
+
+  @Column({ length: 4, default: 'de', collation: 'utf8mb4_unicode_ci', nullable: false })
+  language: string
+
+  @Column({ type: 'bool', default: false })
+  hideAmountGDD: boolean
+
+  @Column({ type: 'bool', default: false })
+  hideAmountGDT: boolean
+
+  @OneToMany(() => UserRole, (userRole) => userRole.user)
+  @JoinColumn({ name: 'user_id' })
+  userRoles: UserRole[]
+
+  @Column({ name: 'referrer_id', type: 'int', unsigned: true, nullable: true, default: null })
+  referrerId?: number | null
+
+  @Column({
+    name: 'contribution_link_id',
+    type: 'int',
+    unsigned: true,
+    nullable: true,
+    default: null,
+  })
+  contributionLinkId?: number | null
+
+  @Column({ name: 'publisher_id', default: 0 })
+  publisherId: number
+
+  @Column({ name: 'gms_allowed', type: 'bool', default: true })
+  gmsAllowed: boolean
+
+  @Column({
+    name: 'location',
+    type: 'geometry',
+    default: null,
+    nullable: true,
+    transformer: GeometryTransformer,
+  })
+  location: Geometry | null
+
+  @Column({
+    name: 'gms_publish_location',
+    type: 'int',
+    unsigned: true,
+    nullable: false,
+    default: 2,
+  })
+  gmsPublishLocation: number
+
+  @Column({ name: 'gms_registered', type: 'bool', default: false })
+  gmsRegistered: boolean
+
+  @Column({ name: 'gms_registered_at', type: 'datetime', default: null, nullable: true })
+  gmsRegisteredAt: Date | null
+
+  @Column({ name: 'humhub_allowed', type: 'bool', default: false })
+  humhubAllowed: boolean
+
+  @OneToMany(() => Contribution, (contribution) => contribution.user)
+  @JoinColumn({ name: 'user_id' })
+  contributions?: Contribution[]
+
+  @OneToMany(() => ContributionMessage, (message) => message.user)
+  @JoinColumn({ name: 'user_id' })
+  messages?: ContributionMessage[]
+
+  @OneToMany(() => UserContact, (userContact: UserContact) => userContact.user)
+  @JoinColumn({ name: 'user_id' })
+  userContacts?: UserContact[]
+
+  @OneToOne(() => DltTransaction, (dlt) => dlt.userId)
+  @JoinColumn({ name: 'id', referencedColumnName: 'userId' })
+  dltTransaction?: DltTransaction | null
+}
diff --git a/database/entity/DltTransaction.ts b/database/entity/DltTransaction.ts
index 31c21d583..373e5f593 100644
--- a/database/entity/DltTransaction.ts
+++ b/database/entity/DltTransaction.ts
@@ -1 +1 @@
-export { DltTransaction } from './0087-add_dlt_users_table/DltTransaction'
+export { DltTransaction } from './0088-merge_dlt_tables/DltTransaction'
diff --git a/database/entity/TransactionLink.ts b/database/entity/TransactionLink.ts
index a483f0171..ff69e101f 100644
--- a/database/entity/TransactionLink.ts
+++ b/database/entity/TransactionLink.ts
@@ -1 +1 @@
-export { TransactionLink } from './0031-remove_sendEmail_from_transaction_link/TransactionLink'
+export { TransactionLink } from './0088-merge_dlt_tables/TransactionLink'
diff --git a/database/entity/User.ts b/database/entity/User.ts
index 5267c24cc..3836c683e 100644
--- a/database/entity/User.ts
+++ b/database/entity/User.ts
@@ -1 +1 @@
-export { User } from './0087-add_dlt_users_table/User'
+export { User } from './0088-merge_dlt_tables/User'
diff --git a/database/entity/index.ts b/database/entity/index.ts
index a5a988490..3352abdb4 100644
--- a/database/entity/index.ts
+++ b/database/entity/index.ts
@@ -13,7 +13,6 @@ import { Community } from './Community'
 import { FederatedCommunity } from './FederatedCommunity'
 import { UserRole } from './UserRole'
 import { DltTransaction } from './DltTransaction'
-import { DltUser } from './DltUser'
 import { PendingTransaction } from './0071-add-pending_transactions-table/PendingTransaction'
 
 export const entities = [
@@ -22,7 +21,6 @@ export const entities = [
   ContributionLink,
   ContributionMessage,
   DltTransaction,
-  DltUser,
   Event,
   FederatedCommunity,
   LoginElopageBuys,
diff --git a/database/migrations/0088-merge_dlt_tables.ts b/database/migrations/0088-merge_dlt_tables.ts
new file mode 100644
index 000000000..7964ffd94
--- /dev/null
+++ b/database/migrations/0088-merge_dlt_tables.ts
@@ -0,0 +1,33 @@
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+export async function upgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  await queryFn(`DROP TABLE \`dlt_users\`;`)
+  await queryFn(`
+    ALTER TABLE \`dlt_transactions\`
+    CHANGE \`transaction_id\` \`transaction_id\` INT(10) UNSIGNED NULL DEFAULT NULL,
+    ADD \`user_id\` INT UNSIGNED NULL DEFAULT NULL AFTER \`transaction_id\`,
+    ADD \`transaction_link_id\` INT UNSIGNED NULL DEFAULT NULL AFTER \`user_id\`;
+  `)
+}
+
+export async function downgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  await queryFn(`
+    CREATE TABLE \`dlt_users\` (
+      \`id\` int unsigned NOT NULL AUTO_INCREMENT,
+      \`user_id\` int(10) unsigned NOT NULL,
+      \`message_id\` varchar(64) NULL DEFAULT NULL,
+      \`verified\` tinyint(4) NOT NULL DEFAULT 0,
+      \`created_at\` datetime(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+      \`verified_at\` datetime(3),
+      \`error\` text NULL DEFAULT NULL,
+      PRIMARY KEY (id)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;`)
+
+  await queryFn(`
+    ALTER TABLE \`dlt_transactions\`
+    CHANGE \`transaction_id\` \`transaction_id\` INT(10) UNSIGNED NOT NULL,
+    DROP COLUMN \`user_id\`,
+    DROP COLUMN \`transaction_link_id\`;
+  `)
+}
diff --git a/dht-node/src/config/index.ts b/dht-node/src/config/index.ts
index f2dc456b4..e0e7f094c 100644
--- a/dht-node/src/config/index.ts
+++ b/dht-node/src/config/index.ts
@@ -4,7 +4,7 @@ import dotenv from 'dotenv'
 dotenv.config()
 
 const constants = {
-  DB_VERSION: '0087-add_dlt_users_table',
+  DB_VERSION: '0088-merge_dlt_tables',
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info
   LOG_LEVEL: process.env.LOG_LEVEL ?? 'info',
diff --git a/federation/src/config/index.ts b/federation/src/config/index.ts
index 4ada82244..61ac3471d 100644
--- a/federation/src/config/index.ts
+++ b/federation/src/config/index.ts
@@ -10,7 +10,7 @@ Decimal.set({
 })
 
 const constants = {
-  DB_VERSION: '0087-add_dlt_users_table',
+  DB_VERSION: '0088-merge_dlt_tables',
   DECAY_START_TIME: new Date('2021-05-13 17:46:31-0000'), // GMT+0
   LOG4JS_CONFIG: 'log4js-config.json',
   // default log level on production should be info