diff --git a/app/src/main/java/com/sopt/now/compose/presentation/ui/auth/screen/SignInState.kt b/app/src/main/java/com/sopt/now/compose/presentation/ui/auth/screen/SignInState.kt
new file mode 100644
index 0000000..9590e34
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/compose/presentation/ui/auth/screen/SignInState.kt
@@ -0,0 +1,8 @@
+package com.sopt.now.compose.presentation.ui.auth.screen
+
+sealed class SignInState {
+    data object Idle: SignInState()
+    data object IdInvalid: SignInState()
+    data object PasswordInvalid: SignInState()
+    data object Success: SignInState()
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/sopt/now/compose/presentation/ui/auth/screen/SignUpState.kt b/app/src/main/java/com/sopt/now/compose/presentation/ui/auth/screen/SignUpState.kt
new file mode 100644
index 0000000..4264a15
--- /dev/null
+++ b/app/src/main/java/com/sopt/now/compose/presentation/ui/auth/screen/SignUpState.kt
@@ -0,0 +1,10 @@
+package com.sopt.now.compose.presentation.ui.auth.screen
+
+sealed class SignUpState {
+    data object Idle: SignUpState()
+    data object IdInvalid: SignUpState()
+    data object PasswordInvalid: SignUpState()
+    data object NicknameInvalid: SignUpState()
+    data object PhoneNumberInvalid: SignUpState()
+    data object Success: SignUpState()
+}
\ No newline at end of file