diff --git a/CHANGELOG.md b/CHANGELOG.md
index 32f6806f1..76892389a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+
+- Eliminated the platform attribute from the transaction model
+
 ## 0.98.0 - 02.05.2021
 
 ### Added
diff --git a/apps/api/src/app/order/create-order.dto.ts b/apps/api/src/app/order/create-order.dto.ts
index f330eb027..0f5daea3a 100644
--- a/apps/api/src/app/order/create-order.dto.ts
+++ b/apps/api/src/app/order/create-order.dto.ts
@@ -17,10 +17,6 @@ export class CreateOrderDto {
   @IsNumber()
   fee: number;
 
-  @IsString()
-  @ValidateIf((object, value) => value !== null)
-  platformId: string | null;
-
   @IsNumber()
   quantity: number;
 
diff --git a/apps/api/src/app/order/order.controller.ts b/apps/api/src/app/order/order.controller.ts
index fa6d2724d..c51a7ffe6 100644
--- a/apps/api/src/app/order/order.controller.ts
+++ b/apps/api/src/app/order/order.controller.ts
@@ -125,41 +125,19 @@ export class OrderController {
     const accountId = data.accountId;
     delete data.accountId;
 
-    if (data.platformId) {
-      const platformId = data.platformId;
-      delete data.platformId;
-
-      return this.orderService.createOrder(
-        {
-          ...data,
-          date,
-          Account: {
-            connect: {
-              id_userId: { id: accountId, userId: this.request.user.id }
-            }
-          },
-          Platform: { connect: { id: platformId } },
-          User: { connect: { id: this.request.user.id } }
-        },
-        this.request.user.id
-      );
-    } else {
-      delete data.platformId;
-
-      return this.orderService.createOrder(
-        {
-          ...data,
-          date,
-          Account: {
-            connect: {
-              id_userId: { id: accountId, userId: this.request.user.id }
-            }
-          },
-          User: { connect: { id: this.request.user.id } }
+    return this.orderService.createOrder(
+      {
+        ...data,
+        date,
+        Account: {
+          connect: {
+            id_userId: { id: accountId, userId: this.request.user.id }
+          }
         },
-        this.request.user.id
-      );
-    }
+        User: { connect: { id: this.request.user.id } }
+      },
+      this.request.user.id
+    );
   }
 
   @Put(':id')
@@ -196,60 +174,26 @@ export class OrderController {
     const accountId = data.accountId;
     delete data.accountId;
 
-    if (data.platformId) {
-      const platformId = data.platformId;
-      delete data.platformId;
-
-      return this.orderService.updateOrder(
-        {
-          data: {
-            ...data,
-            date,
-            Account: {
-              connect: {
-                id_userId: { id: accountId, userId: this.request.user.id }
-              }
-            },
-            Platform: { connect: { id: platformId } },
-            User: { connect: { id: this.request.user.id } }
-          },
-          where: {
-            id_userId: {
-              id,
-              userId: this.request.user.id
+    return this.orderService.updateOrder(
+      {
+        data: {
+          ...data,
+          date,
+          Account: {
+            connect: {
+              id_userId: { id: accountId, userId: this.request.user.id }
             }
-          }
-        },
-        this.request.user.id
-      );
-    } else {
-      // platformId is null, remove it
-      delete data.platformId;
-
-      return this.orderService.updateOrder(
-        {
-          data: {
-            ...data,
-            date,
-            Account: {
-              connect: {
-                id_userId: { id: accountId, userId: this.request.user.id }
-              }
-            },
-            Platform: originalOrder.platformId
-              ? { disconnect: true }
-              : undefined,
-            User: { connect: { id: this.request.user.id } }
           },
-          where: {
-            id_userId: {
-              id,
-              userId: this.request.user.id
-            }
-          }
+          User: { connect: { id: this.request.user.id } }
         },
-        this.request.user.id
-      );
-    }
+        where: {
+          id_userId: {
+            id,
+            userId: this.request.user.id
+          }
+        }
+      },
+      this.request.user.id
+    );
   }
 }
diff --git a/apps/api/src/app/order/update-order.dto.ts b/apps/api/src/app/order/update-order.dto.ts
index 26f1fa08d..115ca3c1d 100644
--- a/apps/api/src/app/order/update-order.dto.ts
+++ b/apps/api/src/app/order/update-order.dto.ts
@@ -17,10 +17,6 @@ export class UpdateOrderDto {
   @IsNumber()
   fee: number;
 
-  @IsString()
-  @ValidateIf((object, value) => value !== null)
-  platformId: string | null;
-
   @IsString()
   id: string;
 
diff --git a/apps/api/src/models/portfolio.spec.ts b/apps/api/src/models/portfolio.spec.ts
index 066ba16fe..874ea0817 100644
--- a/apps/api/src/models/portfolio.spec.ts
+++ b/apps/api/src/models/portfolio.spec.ts
@@ -149,7 +149,6 @@ describe('Portfolio', () => {
           fee: 0,
           date: new Date(),
           id: '8d999347-dee2-46ee-88e1-26b344e71fcc',
-          platformId: null,
           quantity: 1,
           symbol: 'BTCUSD',
           type: Type.BUY,
@@ -200,7 +199,7 @@ describe('Portfolio', () => {
           // shareCurrent: 0.9999999559148652,
           shareInvestment: 1,
           symbol: 'BTCUSD',
-          transactionCount: 0,
+          transactionCount: 1,
           type: 'Cryptocurrency'
         }
       });
@@ -251,7 +250,6 @@ describe('Portfolio', () => {
           fee: 0,
           date: new Date(getUtc('2018-01-05')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fb',
-          platformId: null,
           quantity: 0.2,
           symbol: 'ETHUSD',
           type: Type.BUY,
@@ -347,7 +345,6 @@ describe('Portfolio', () => {
           fee: 0,
           date: new Date(getUtc('2018-01-05')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fb',
-          platformId: null,
           quantity: 0.2,
           symbol: 'ETHUSD',
           type: Type.BUY,
@@ -364,7 +361,6 @@ describe('Portfolio', () => {
           fee: 0,
           date: new Date(getUtc('2018-01-28')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fc',
-          platformId: null,
           quantity: 0.3,
           symbol: 'ETHUSD',
           type: Type.BUY,
@@ -425,7 +421,6 @@ describe('Portfolio', () => {
           date: new Date(getUtc('2017-08-16')),
           fee: 2.99,
           id: 'd96795b2-6ae6-420e-aa21-fabe5e45d475',
-          platformId: null,
           quantity: 0.05614682,
           symbol: 'BTCUSD',
           type: Type.BUY,
@@ -442,7 +437,6 @@ describe('Portfolio', () => {
           fee: 2.99,
           date: new Date(getUtc('2018-01-05')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fb',
-          platformId: null,
           quantity: 0.2,
           symbol: 'ETHUSD',
           type: Type.BUY,
@@ -516,7 +510,6 @@ describe('Portfolio', () => {
           fee: 1.0,
           date: new Date(getUtc('2018-01-05')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fb',
-          platformId: null,
           quantity: 0.2,
           symbol: 'ETHUSD',
           type: Type.BUY,
@@ -533,7 +526,6 @@ describe('Portfolio', () => {
           fee: 1.0,
           date: new Date(getUtc('2018-01-28')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fc',
-          platformId: null,
           quantity: 0.1,
           symbol: 'ETHUSD',
           type: Type.SELL,
@@ -550,7 +542,6 @@ describe('Portfolio', () => {
           fee: 1.0,
           date: new Date(getUtc('2018-01-31')),
           id: '4a5a5c6e-659d-45cc-9fd4-fd6c873b50fc',
-          platformId: null,
           quantity: 0.2,
           symbol: 'ETHUSD',
           type: Type.BUY,
diff --git a/apps/client/src/app/pages/transactions/transactions-page.component.ts b/apps/client/src/app/pages/transactions/transactions-page.component.ts
index 7e9304d2b..ef02e49c0 100644
--- a/apps/client/src/app/pages/transactions/transactions-page.component.ts
+++ b/apps/client/src/app/pages/transactions/transactions-page.component.ts
@@ -130,7 +130,6 @@ export class TransactionsPageComponent implements OnInit {
     date,
     fee,
     id,
-    platformId,
     quantity,
     symbol,
     type,
@@ -146,7 +145,6 @@ export class TransactionsPageComponent implements OnInit {
           date,
           fee,
           id,
-          platformId,
           quantity,
           symbol,
           type,
@@ -188,7 +186,6 @@ export class TransactionsPageComponent implements OnInit {
           currency: null,
           date: new Date(),
           fee: 0,
-          platformId: null,
           quantity: null,
           symbol: null,
           type: 'BUY',
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 43d688c3b..4f173a39a 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -68,8 +68,6 @@ model Order {
   date          DateTime
   fee           Float
   id            String     @default(uuid())
-  Platform      Platform?  @relation(fields: [platformId], references: [id])
-  platformId    String?
   quantity      Float
   symbol        String
   type          Type
@@ -85,7 +83,6 @@ model Platform {
   Account Account[]
   id      String    @id @default(uuid())
   name    String?
-  Order   Order[]
   url     String    @unique
 }