diff --git a/backend/app/Exceptions/BadRequestException.php b/backend/app/Exceptions/BadRequestException.php
new file mode 100644
index 0000000..b900f47
--- /dev/null
+++ b/backend/app/Exceptions/BadRequestException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace App\Exceptions;
+
+use DomainException;
+
+class BadRequestException extends DomainException {}
diff --git a/backend/app/Exceptions/ForbiddenException.php b/backend/app/Exceptions/ForbiddenException.php
new file mode 100644
index 0000000..e3a3cf4
--- /dev/null
+++ b/backend/app/Exceptions/ForbiddenException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace App\Exceptions;
+
+use DomainException;
+
+class ForbiddenException extends DomainException {}
diff --git a/backend/app/Exceptions/UnauthorizedException.php b/backend/app/Exceptions/UnauthorizedException.php
new file mode 100644
index 0000000..f5d406e
--- /dev/null
+++ b/backend/app/Exceptions/UnauthorizedException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace App\Exceptions;
+
+use DomainException;
+
+class UnauthorizedException extends DomainException {}