diff --git a/backend/src/main/java/de/hft/geotime/entities/RecordType.java b/backend/src/main/java/de/hft/geotime/entities/RecordType.java
new file mode 100644
index 0000000..5f3a684
--- /dev/null
+++ b/backend/src/main/java/de/hft/geotime/entities/RecordType.java
@@ -0,0 +1,6 @@
+package de.hft.geotime.entities;
+
+public enum RecordType {
+    BREAK,
+    PAID
+}
diff --git a/backend/src/main/java/de/hft/geotime/entities/Role.java b/backend/src/main/java/de/hft/geotime/entities/Role.java
new file mode 100644
index 0000000..31bc9df
--- /dev/null
+++ b/backend/src/main/java/de/hft/geotime/entities/Role.java
@@ -0,0 +1,24 @@
+package de.hft.geotime.entities;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class Role {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private long id;
+    private String name;
+    // TODO: Permission List
+
+}
diff --git a/backend/src/main/java/de/hft/geotime/entities/TimeRecord.java b/backend/src/main/java/de/hft/geotime/entities/TimeRecord.java
new file mode 100644
index 0000000..6a1cb94
--- /dev/null
+++ b/backend/src/main/java/de/hft/geotime/entities/TimeRecord.java
@@ -0,0 +1,27 @@
+package de.hft.geotime.entities;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.type.TimeType;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+import java.time.Duration;
+import java.util.Date;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class TimeRecord {
+    @Id
+    private long id;
+    @OneToOne
+    private TimetrackAccount account;
+    private Date startdate;
+    private Date enddate;
+    private Duration time;
+    private RecordType type;
+}
diff --git a/backend/src/main/java/de/hft/geotime/entities/TimetrackAccount.java b/backend/src/main/java/de/hft/geotime/entities/TimetrackAccount.java
new file mode 100644
index 0000000..b262bdc
--- /dev/null
+++ b/backend/src/main/java/de/hft/geotime/entities/TimetrackAccount.java
@@ -0,0 +1,22 @@
+package de.hft.geotime.entities;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.*;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+public class TimetrackAccount {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private long id;
+    @OneToOne
+    private User user;
+    private double revenue;
+    private String name;
+    private String description;
+}
diff --git a/backend/src/main/java/de/hft/geotime/entities/User.java b/backend/src/main/java/de/hft/geotime/entities/User.java
index 0a3ee10..40fed8a 100644
--- a/backend/src/main/java/de/hft/geotime/entities/User.java
+++ b/backend/src/main/java/de/hft/geotime/entities/User.java
@@ -4,10 +4,8 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
+import javax.persistence.*;
+import java.util.List;
 
 @Data
 @NoArgsConstructor
@@ -21,7 +19,9 @@ public class User {
     private String username;
     private String firstname;
     private String lastname;
-    //TODO: roleid(FK)
-    //TODO: timetrackaccounts[List]
+    @OneToMany
+    private List<Role> roles;
+    @OneToMany
+    private List<TimetrackAccount> timetrackAccounts;
 
 }