diff --git a/src/components/AddTransactionButton.tsx b/src/components/AddTransactionButton.tsx
index 3925a3e..03dc537 100644
--- a/src/components/AddTransactionButton.tsx
+++ b/src/components/AddTransactionButton.tsx
@@ -1,3 +1,4 @@
+
 import React, { useState } from 'react';
 import { PlusIcon } from 'lucide-react';
 import { Dialog, DialogContent, DialogHeader, DialogTitle } from './ui/dialog';
diff --git a/src/components/ui/toaster.tsx b/src/components/ui/toaster.tsx
index 2367807..5b7ef65 100644
--- a/src/components/ui/toaster.tsx
+++ b/src/components/ui/toaster.tsx
@@ -1,5 +1,5 @@
 
-import { useToast } from "@/hooks/use-toast"
+import { useToast } from "@/hooks/toast"
 import {
   Toast,
   ToastClose,
diff --git a/src/components/ui/use-toast.ts b/src/components/ui/use-toast.ts
index cb982bd..f25c9a3 100644
--- a/src/components/ui/use-toast.ts
+++ b/src/components/ui/use-toast.ts
@@ -1,7 +1,6 @@
 
 // Shadcn UI의 최신 버전에서는 use-toast가 hooks 폴더로 이동했습니다.
 // 이 파일은 기존 import 경로가 작동하도록 리디렉션합니다.
-import { useToast, toast } from "@/hooks/use-toast";
-
+import { useToast, toast } from "@/hooks/toast";
 export { useToast, toast };
-export type { ToasterToast } from "@/hooks/use-toast";
+export type { ToasterToast } from "@/hooks/toast/types";
diff --git a/src/hooks/toast/constants.ts b/src/hooks/toast/constants.ts
new file mode 100644
index 0000000..3120789
--- /dev/null
+++ b/src/hooks/toast/constants.ts
@@ -0,0 +1,3 @@
+
+export const TOAST_LIMIT = 5 // 최대 5개로 제한
+export const TOAST_REMOVE_DELAY = 5000 // 5초 후 DOM에서 제거
diff --git a/src/hooks/toast/index.ts b/src/hooks/toast/index.ts
new file mode 100644
index 0000000..e889307
--- /dev/null
+++ b/src/hooks/toast/index.ts
@@ -0,0 +1,61 @@
+
+import * as React from "react"
+import { Toast, ToasterToast } from "./types"
+import { actionTypes } from "./types"
+import { listeners, memoryState } from "./store"
+import { genId, dispatch } from "./toastManager"
+
+export { TOAST_LIMIT, TOAST_REMOVE_DELAY } from "./constants"
+export type { ToasterToast } from "./types"
+
+function toast({ ...props }: Toast) {
+  const id = genId()
+
+  const update = (props: ToasterToast) =>
+    dispatch({
+      type: actionTypes.UPDATE_TOAST,
+      toast: { ...props, id },
+    })
+  const dismiss = () => dispatch({ type: actionTypes.DISMISS_TOAST, toastId: id })
+
+  dispatch({
+    type: actionTypes.ADD_TOAST,
+    toast: {
+      ...props,
+      id,
+      open: true,
+      onOpenChange: (open) => {
+        if (!open) dismiss()
+      },
+      duration: props.duration || 3000, // 기본 지속 시간 3초로 단축
+    },
+  })
+
+  return {
+    id,
+    dismiss,
+    update,
+  }
+}
+
+function useToast() {
+  const [state, setState] = React.useState<State>(memoryState)
+
+  React.useEffect(() => {
+    listeners.push(setState)
+    return () => {
+      const index = listeners.indexOf(setState)
+      if (index > -1) {
+        listeners.splice(index, 1)
+      }
+    }
+  }, [state])
+
+  return {
+    ...state,
+    toast,
+    dismiss: (toastId?: string) => dispatch({ type: actionTypes.DISMISS_TOAST, toastId }),
+  }
+}
+
+export { useToast, toast }
diff --git a/src/hooks/toast/reducer.ts b/src/hooks/toast/reducer.ts
new file mode 100644
index 0000000..f62c7df
--- /dev/null
+++ b/src/hooks/toast/reducer.ts
@@ -0,0 +1,78 @@
+
+import { TOAST_REMOVE_DELAY } from './constants'
+import { Action, State, actionTypes } from './types'
+
+// 토스트 타임아웃 맵
+export const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>()
+
+// 토스트 자동 제거 함수
+export const addToRemoveQueue = (toastId: string) => {
+  if (toastTimeouts.has(toastId)) {
+    return
+  }
+
+  const timeout = setTimeout(() => {
+    toastTimeouts.delete(toastId)
+    dispatch({
+      type: actionTypes.REMOVE_TOAST,
+      toastId: toastId,
+    })
+  }, TOAST_REMOVE_DELAY)
+
+  toastTimeouts.set(toastId, timeout)
+}
+
+export const reducer = (state: State, action: Action): State => {
+  switch (action.type) {
+    case actionTypes.ADD_TOAST:
+      return {
+        ...state,
+        toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
+      }
+
+    case actionTypes.UPDATE_TOAST:
+      return {
+        ...state,
+        toasts: state.toasts.map((t) =>
+          t.id === action.toast.id ? { ...t, ...action.toast } : t
+        ),
+      }
+
+    case actionTypes.DISMISS_TOAST: {
+      const { toastId } = action
+
+      if (toastId) {
+        addToRemoveQueue(toastId)
+      } else {
+        state.toasts.forEach((toast) => {
+          addToRemoveQueue(toast.id)
+        })
+      }
+
+      return {
+        ...state,
+        toasts: state.toasts.map((t) =>
+          t.id === toastId || toastId === undefined
+            ? {
+                ...t,
+                open: false,
+              }
+            : t
+        ),
+      }
+    }
+    case actionTypes.REMOVE_TOAST:
+      if (action.toastId === undefined) {
+        return {
+          ...state,
+          toasts: [],
+        }
+      }
+      return {
+        ...state,
+        toasts: state.toasts.filter((t) => t.id !== action.toastId),
+      }
+    default:
+      return state
+  }
+}
diff --git a/src/hooks/toast/store.ts b/src/hooks/toast/store.ts
new file mode 100644
index 0000000..1112e29
--- /dev/null
+++ b/src/hooks/toast/store.ts
@@ -0,0 +1,9 @@
+
+import { State } from './types'
+
+// 전역 상태 및 리스너
+export const listeners: Array<(state: State) => void> = []
+export let memoryState: State = { toasts: [] }
+
+// 마지막 액션 추적 (중복 방지용)
+export let lastAction: { type: string; id?: string; time: number } | null = null
diff --git a/src/hooks/toast/toastManager.ts b/src/hooks/toast/toastManager.ts
new file mode 100644
index 0000000..5bebe86
--- /dev/null
+++ b/src/hooks/toast/toastManager.ts
@@ -0,0 +1,51 @@
+
+import { Action, actionTypes } from './types'
+import { TOAST_LIMIT } from './constants'
+import { reducer } from './reducer'
+import { listeners, memoryState, lastAction } from './store'
+
+// ID 생성기
+let count = 0
+
+export function genId() {
+  count = (count + 1) % Number.MAX_SAFE_INTEGER
+  return count.toString()
+}
+
+export function dispatch(action: Action) {
+  // 마지막 액션 정보 추출
+  let actionId: string | undefined = undefined;
+  if ('toast' in action && action.toast) {
+    actionId = action.toast.id;
+  } else if ('toastId' in action) {
+    actionId = action.toastId;
+  }
+  
+  // 동일한 토스트에 대한 중복 액션 방지
+  const now = Date.now();
+  const isSameAction = lastAction && 
+                      lastAction.type === action.type && 
+                      ((action.type === actionTypes.ADD_TOAST && 
+                        lastAction.time > now - 1000) || // ADD 액션은 1초 내 중복 방지
+                       (action.type !== actionTypes.ADD_TOAST && 
+                        actionId === lastAction.id && 
+                        lastAction.time > now - 300)); // 다른 액션은 300ms 내 중복 방지
+  
+  if (isSameAction) {
+    console.log('중복 토스트 액션 무시:', action.type);
+    return;
+  }
+  
+  // 액션 추적 업데이트
+  lastAction = { 
+    type: action.type, 
+    id: actionId, 
+    time: now 
+  };
+  
+  // 실제 상태 업데이트 및 리스너 호출
+  memoryState = reducer(memoryState, action)
+  listeners.forEach((listener) => {
+    listener(memoryState)
+  })
+}
diff --git a/src/hooks/toast/types.ts b/src/hooks/toast/types.ts
new file mode 100644
index 0000000..878a99f
--- /dev/null
+++ b/src/hooks/toast/types.ts
@@ -0,0 +1,46 @@
+
+import * as React from "react"
+
+export type ToasterToast = {
+  id: string
+  title?: React.ReactNode
+  description?: React.ReactNode
+  action?: React.ReactNode
+  variant?: "default" | "destructive"
+  duration?: number
+  open?: boolean
+  onOpenChange?: (open: boolean) => void
+}
+
+export const actionTypes = {
+  ADD_TOAST: "ADD_TOAST",
+  UPDATE_TOAST: "UPDATE_TOAST",
+  DISMISS_TOAST: "DISMISS_TOAST",
+  REMOVE_TOAST: "REMOVE_TOAST",
+} as const
+
+export type ActionType = typeof actionTypes
+
+export type Action =
+  | {
+      type: ActionType["ADD_TOAST"]
+      toast: ToasterToast
+    }
+  | {
+      type: ActionType["UPDATE_TOAST"]
+      toast: Partial<ToasterToast> & { id: string }
+    }
+  | {
+      type: ActionType["DISMISS_TOAST"]
+      toastId?: string
+    }
+  | {
+      type: ActionType["REMOVE_TOAST"]
+      toastId?: string
+    }
+
+export interface State {
+  toasts: ToasterToast[]
+}
+
+export type Toast = Omit<ToasterToast, "id">
diff --git a/src/hooks/use-toast.ts b/src/hooks/use-toast.ts
index 6c277ef..ff8eb0c 100644
--- a/src/hooks/use-toast.ts
+++ b/src/hooks/use-toast.ts
@@ -1,227 +1,4 @@
 
-import * as React from "react"
-
-const TOAST_LIMIT = 5 // 최대 5개로 제한
-export const TOAST_REMOVE_DELAY = 5000 // 5초 후 DOM에서 제거
-
-export type ToasterToast = {
-  id: string
-  title?: React.ReactNode
-  description?: React.ReactNode
-  action?: React.ReactNode
-  variant?: "default" | "destructive"
-  duration?: number
-  open?: boolean
-  onOpenChange?: (open: boolean) => void
-}
-
-const actionTypes = {
-  ADD_TOAST: "ADD_TOAST",
-  UPDATE_TOAST: "UPDATE_TOAST",
-  DISMISS_TOAST: "DISMISS_TOAST",
-  REMOVE_TOAST: "REMOVE_TOAST",
-} as const
-
-let count = 0
-
-function genId() {
-  count = (count + 1) % Number.MAX_SAFE_INTEGER
-  return count.toString()
-}
-
-type ActionType = typeof actionTypes
-
-type Action =
-  | {
-      type: ActionType["ADD_TOAST"]
-      toast: ToasterToast
-    }
-  | {
-      type: ActionType["UPDATE_TOAST"]
-      toast: Partial<ToasterToast> & { id: string }
-    }
-  | {
-      type: ActionType["DISMISS_TOAST"]
-      toastId?: string
-    }
-  | {
-      type: ActionType["REMOVE_TOAST"]
-      toastId?: string
-    }
-
-interface State {
-  toasts: ToasterToast[]
-}
-
-const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>()
-
-// 토스트 자동 제거 함수
-const addToRemoveQueue = (toastId: string) => {
-  if (toastTimeouts.has(toastId)) {
-    return
-  }
-
-  const timeout = setTimeout(() => {
-    toastTimeouts.delete(toastId)
-    dispatch({
-      type: actionTypes.REMOVE_TOAST,
-      toastId: toastId,
-    })
-  }, TOAST_REMOVE_DELAY)
-
-  toastTimeouts.set(toastId, timeout)
-}
-
-export const reducer = (state: State, action: Action): State => {
-  switch (action.type) {
-    case actionTypes.ADD_TOAST:
-      return {
-        ...state,
-        toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
-      }
-
-    case actionTypes.UPDATE_TOAST:
-      return {
-        ...state,
-        toasts: state.toasts.map((t) =>
-          t.id === action.toast.id ? { ...t, ...action.toast } : t
-        ),
-      }
-
-    case actionTypes.DISMISS_TOAST: {
-      const { toastId } = action
-
-      if (toastId) {
-        addToRemoveQueue(toastId)
-      } else {
-        state.toasts.forEach((toast) => {
-          addToRemoveQueue(toast.id)
-        })
-      }
-
-      return {
-        ...state,
-        toasts: state.toasts.map((t) =>
-          t.id === toastId || toastId === undefined
-            ? {
-                ...t,
-                open: false,
-              }
-            : t
-        ),
-      }
-    }
-    case actionTypes.REMOVE_TOAST:
-      if (action.toastId === undefined) {
-        return {
-          ...state,
-          toasts: [],
-        }
-      }
-      return {
-        ...state,
-        toasts: state.toasts.filter((t) => t.id !== action.toastId),
-      }
-    default:
-      return state
-  }
-}
-
-// 전역 상태 및 리스너
-const listeners: Array<(state: State) => void> = []
-let memoryState: State = { toasts: [] }
-
-// 마지막 액션 추적 (중복 방지용)
-let lastAction: { type: string; id?: string; time: number } | null = null
-
-function dispatch(action: Action) {
-  // 마지막 액션 정보 추출
-  let actionId: string | undefined = undefined;
-  if ('toast' in action && action.toast) {
-    actionId = action.toast.id;
-  } else if ('toastId' in action) {
-    actionId = action.toastId;
-  }
-  
-  // 동일한 토스트에 대한 중복 액션 방지
-  const now = Date.now();
-  const isSameAction = lastAction && 
-                      lastAction.type === action.type && 
-                      ((action.type === actionTypes.ADD_TOAST && 
-                        lastAction.time > now - 1000) || // ADD 액션은 1초 내 중복 방지
-                       (action.type !== actionTypes.ADD_TOAST && 
-                        actionId === lastAction.id && 
-                        lastAction.time > now - 300)); // 다른 액션은 300ms 내 중복 방지
-  
-  if (isSameAction) {
-    console.log('중복 토스트 액션 무시:', action.type);
-    return;
-  }
-  
-  // 액션 추적 업데이트
-  lastAction = { 
-    type: action.type, 
-    id: actionId, 
-    time: now 
-  };
-  
-  // 실제 상태 업데이트 및 리스너 호출
-  memoryState = reducer(memoryState, action)
-  listeners.forEach((listener) => {
-    listener(memoryState)
-  })
-}
-
-type Toast = Omit<ToasterToast, "id">
-
-function toast({ ...props }: Toast) {
-  const id = genId()
-
-  const update = (props: ToasterToast) =>
-    dispatch({
-      type: actionTypes.UPDATE_TOAST,
-      toast: { ...props, id },
-    })
-  const dismiss = () => dispatch({ type: actionTypes.DISMISS_TOAST, toastId: id })
-
-  dispatch({
-    type: actionTypes.ADD_TOAST,
-    toast: {
-      ...props,
-      id,
-      open: true,
-      onOpenChange: (open) => {
-        if (!open) dismiss()
-      },
-      duration: props.duration || 3000, // 기본 지속 시간 3초로 단축
-    },
-  })
-
-  return {
-    id,
-    dismiss,
-    update,
-  }
-}
-
-function useToast() {
-  const [state, setState] = React.useState<State>(memoryState)
-
-  React.useEffect(() => {
-    listeners.push(setState)
-    return () => {
-      const index = listeners.indexOf(setState)
-      if (index > -1) {
-        listeners.splice(index, 1)
-      }
-    }
-  }, [state])
-
-  return {
-    ...state,
-    toast,
-    dismiss: (toastId?: string) => dispatch({ type: actionTypes.DISMISS_TOAST, toastId }),
-  }
-}
-
-export { useToast, toast }
+// 이 파일은 기존 import 경로 호환성을 위한 리디렉션입니다
+export { useToast, toast, TOAST_LIMIT, TOAST_REMOVE_DELAY } from "./toast";
+export type { ToasterToast } from "./toast/types";
diff --git a/src/hooks/useToast.wrapper.ts b/src/hooks/useToast.wrapper.ts
index 1ef301f..8b74b79 100644
--- a/src/hooks/useToast.wrapper.ts
+++ b/src/hooks/useToast.wrapper.ts
@@ -1,5 +1,6 @@
 
-import { useToast as useOriginalToast, toast as originalToast, ToasterToast } from '@/hooks/use-toast';
+import { useToast as useOriginalToast, toast as originalToast } from '@/hooks/toast';
+import type { ToasterToast } from '@/hooks/toast/types';
 
 /**
  * 토스트 중복 방지를 위한 설정값