diff --git a/app/src/main/java/com/hyperling/expensetracker/ExpenseEvent.kt b/app/src/main/java/com/hyperling/expensetracker/ExpenseEvent.kt
index b342f92..5e474dd 100644
--- a/app/src/main/java/com/hyperling/expensetracker/ExpenseEvent.kt
+++ b/app/src/main/java/com/hyperling/expensetracker/ExpenseEvent.kt
@@ -7,6 +7,6 @@ sealed interface ExpenseEvent {
     data class SetRate(val rate: Rate): ExpenseEvent
     object ShowDialog: ExpenseEvent
     object HideDialog: ExpenseEvent
-    data class SortExpenses(val rate: Rate): ExpenseEvent
+    data class SortExpenses(val sortType: SortType): ExpenseEvent
     data class DeleteExpense(val expense: Expense): ExpenseEvent
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/hyperling/expensetracker/ExpenseState.kt b/app/src/main/java/com/hyperling/expensetracker/ExpenseState.kt
new file mode 100644
index 0000000..620c14e
--- /dev/null
+++ b/app/src/main/java/com/hyperling/expensetracker/ExpenseState.kt
@@ -0,0 +1,10 @@
+package com.hyperling.expensetracker
+
+data class ExpenseState(
+    val expenses: List<Expense> = emptyList(),
+    val firstName: String = "",
+    val lastName: String = "",
+    val phoneNumber: String = "",
+    val isAddingExpense: Boolean = false,
+    val sortType: SortType = SortType.NAME,
+)
diff --git a/app/src/main/java/com/hyperling/expensetracker/SortType.kt b/app/src/main/java/com/hyperling/expensetracker/SortType.kt
new file mode 100644
index 0000000..21e3d7f
--- /dev/null
+++ b/app/src/main/java/com/hyperling/expensetracker/SortType.kt
@@ -0,0 +1,7 @@
+package com.hyperling.expensetracker
+
+enum class SortType {
+    NAME,
+    COST,
+    RATE,
+}
\ No newline at end of file