diff --git a/src/MaksIT.Core/Abstractions/Domain/DomainDocumentBase.cs b/src/MaksIT.Core/Abstractions/Domain/DomainDocumentBase.cs
new file mode 100644
index 0000000..a72f63e
--- /dev/null
+++ b/src/MaksIT.Core/Abstractions/Domain/DomainDocumentBase.cs
@@ -0,0 +1,10 @@
+namespace MaksIT.Core.Abstractions.Domain;
+
+public abstract class DomainDocumentBase<T> : DomainObjectBase {
+  public T Id { get; set; }
+
+  public DomainDocumentBase(T id) {
+    Id = id;
+  }
+
+}
diff --git a/src/MaksIT.Core/Abstractions/Domain/DomainObjectBase.cs b/src/MaksIT.Core/Abstractions/Domain/DomainObjectBase.cs
new file mode 100644
index 0000000..56cef63
--- /dev/null
+++ b/src/MaksIT.Core/Abstractions/Domain/DomainObjectBase.cs
@@ -0,0 +1,4 @@
+namespace MaksIT.Core.Abstractions.Domain;
+
+public abstract class DomainObjectBase {
+}
\ No newline at end of file
diff --git a/src/MaksIT.Core/Abstractions/Dto/DtoDocumentBase.cs b/src/MaksIT.Core/Abstractions/Dto/DtoDocumentBase.cs
new file mode 100644
index 0000000..ba7c42a
--- /dev/null
+++ b/src/MaksIT.Core/Abstractions/Dto/DtoDocumentBase.cs
@@ -0,0 +1,5 @@
+namespace MaksIT.Core.Abstractions.Dto;
+
+public abstract class DtoDocumentBase<T> : DtoObjectBase {
+  public required T Id { get; set; }
+}
diff --git a/src/MaksIT.Core/Abstractions/Dto/DtoObjectBase.cs b/src/MaksIT.Core/Abstractions/Dto/DtoObjectBase.cs
new file mode 100644
index 0000000..831137a
--- /dev/null
+++ b/src/MaksIT.Core/Abstractions/Dto/DtoObjectBase.cs
@@ -0,0 +1,4 @@
+namespace MaksIT.Core.Abstractions.Dto;
+
+public abstract class DtoObjectBase {
+}