diff --git a/src/components/transaction/TransactionFormFields.tsx b/src/components/transaction/TransactionFormFields.tsx
index 34aa855..568428d 100644
--- a/src/components/transaction/TransactionFormFields.tsx
+++ b/src/components/transaction/TransactionFormFields.tsx
@@ -6,7 +6,7 @@ import { UseFormReturn } from 'react-hook-form';
 import { z } from 'zod';
 import { categoryIcons, EXPENSE_CATEGORIES } from '@/constants/categoryIcons';
 
-// Form schema for validation - 카테고리를 3개로 축소
+// Form schema for validation - 카테고리를 3개로 제한
 export const transactionFormSchema = z.object({
   title: z.string().min(1, '제목을 입력해주세요'),
   amount: z.string().min(1, '금액을 입력해주세요'),
diff --git a/src/constants/categoryIcons.tsx b/src/constants/categoryIcons.tsx
index 9b4271b..c361090 100644
--- a/src/constants/categoryIcons.tsx
+++ b/src/constants/categoryIcons.tsx
@@ -10,7 +10,7 @@ export const categoryIcons: Record<string, React.ReactNode> = {
   수입: <Banknote size={18} />,
 };
 
-// 지출 카테고리 목록 - 다시 3개로 축소
+// 지출 카테고리 목록 - 3개로 제한
 export const EXPENSE_CATEGORIES = ['식비', '생활비', '교통비'];
 
 // 기본 카테고리 예산 설정
diff --git a/src/contexts/budget/budgetUtils.ts b/src/contexts/budget/budgetUtils.ts
index f810125..69fa799 100644
--- a/src/contexts/budget/budgetUtils.ts
+++ b/src/contexts/budget/budgetUtils.ts
@@ -21,7 +21,10 @@ export const calculateCategorySpending = (
   
   // 모든 카테고리에 대해 초기값 0 설정
   Object.keys(categoryBudgets).forEach(category => {
-    categorySpending[category] = 0;
+    // 3개 카테고리만 유지
+    if (EXPENSE_CATEGORIES.includes(category)) {
+      categorySpending[category] = 0;
+    }
   });
   
   expenseTransactions.forEach(t => {
@@ -30,10 +33,10 @@ export const calculateCategorySpending = (
     }
   });
   
-  return Object.keys(categoryBudgets).map(category => ({
+  return EXPENSE_CATEGORIES.map(category => ({
     title: category,
     current: categorySpending[category] || 0,
-    total: categoryBudgets[category]
+    total: categoryBudgets[category] || 0
   }));
 };
 
diff --git a/src/contexts/budget/storage/categoryStorage.ts b/src/contexts/budget/storage/categoryStorage.ts
index cd236c2..79b4f6e 100644
--- a/src/contexts/budget/storage/categoryStorage.ts
+++ b/src/contexts/budget/storage/categoryStorage.ts
@@ -1,5 +1,5 @@
-
 import { DEFAULT_CATEGORY_BUDGETS } from '../budgetUtils';
+import { EXPENSE_CATEGORIES } from '@/constants/categoryIcons';
 import { toast } from '@/components/ui/use-toast';
 
 /**
@@ -12,7 +12,14 @@ export const loadCategoryBudgetsFromStorage = (): Record<string, number> => {
     if (storedCategoryBudgets) {
       const parsed = JSON.parse(storedCategoryBudgets);
       console.log('카테고리 예산 로드 완료:', parsed);
-      return parsed;
+      
+      // 3개 카테고리만 유지
+      const filteredBudgets: Record<string, number> = {};
+      EXPENSE_CATEGORIES.forEach(category => {
+        filteredBudgets[category] = parsed[category] || 0;
+      });
+      
+      return filteredBudgets;
     }
     
     // 백업에서 시도
@@ -20,9 +27,16 @@ export const loadCategoryBudgetsFromStorage = (): Record<string, number> => {
     if (backupCategoryBudgets) {
       const parsedBackup = JSON.parse(backupCategoryBudgets);
       console.log('백업에서 카테고리 예산 복구:', parsedBackup);
+      
+      // 3개 카테고리만 유지
+      const filteredBudgets: Record<string, number> = {};
+      EXPENSE_CATEGORIES.forEach(category => {
+        filteredBudgets[category] = parsedBackup[category] || 0;
+      });
+      
       // 메인 스토리지도 복구
-      localStorage.setItem('categoryBudgets', backupCategoryBudgets);
-      return parsedBackup;
+      localStorage.setItem('categoryBudgets', JSON.stringify(filteredBudgets));
+      return filteredBudgets;
     }
   } catch (error) {
     console.error('카테고리 예산 데이터 파싱 오류:', error);
@@ -39,15 +53,21 @@ export const loadCategoryBudgetsFromStorage = (): Record<string, number> => {
  */
 export const saveCategoryBudgetsToStorage = (categoryBudgets: Record<string, number>): void => {
   try {
+    // 3개 카테고리만 유지하고 나머지는 제거
+    const filteredBudgets: Record<string, number> = {};
+    EXPENSE_CATEGORIES.forEach(category => {
+      filteredBudgets[category] = categoryBudgets[category] || 0;
+    });
+    
     // 데이터 문자열로 변환
-    const dataString = JSON.stringify(categoryBudgets);
+    const dataString = JSON.stringify(filteredBudgets);
     
     // 로컬 스토리지에 저장
     localStorage.setItem('categoryBudgets', dataString);
     // 백업 저장
     localStorage.setItem('categoryBudgets_backup', dataString);
     
-    console.log('카테고리 예산 저장 완료:', categoryBudgets);
+    console.log('카테고리 예산 저장 완료:', filteredBudgets);
     
     // 스토리지 이벤트 수동 트리거 (동일 창에서도 감지하기 위함)
     try {
@@ -64,7 +84,7 @@ export const saveCategoryBudgetsToStorage = (categoryBudgets: Record<string, num
     localStorage.setItem('lastCategoryBudgetSaveTime', new Date().toISOString());
     
     // 토스트 알림
-    const totalBudget = Object.values(categoryBudgets).reduce((sum, val) => sum + val, 0);
+    const totalBudget = Object.values(filteredBudgets).reduce((sum, val) => sum + val, 0);
     if (totalBudget > 0) {
       toast({
         title: "카테고리 예산 저장 완료",
@@ -91,7 +111,7 @@ export const clearAllCategoryBudgets = (): void => {
     localStorage.removeItem('categoryBudgets');
     localStorage.removeItem('categoryBudgets_backup');
     
-    // 기본값으로 재설정
+    // 기본값으로 재설정 (3개 카테고리만)
     const dataString = JSON.stringify(DEFAULT_CATEGORY_BUDGETS);
     localStorage.setItem('categoryBudgets', dataString);
     localStorage.setItem('categoryBudgets_backup', dataString);
diff --git a/src/hooks/useTransactions.ts b/src/hooks/useTransactions.ts
index 8b345fe..8f028ae 100644
--- a/src/hooks/useTransactions.ts
+++ b/src/hooks/useTransactions.ts
@@ -20,6 +20,7 @@ import {
   updateTransactionInSupabase, 
   deleteTransactionFromSupabase 
 } from '@/utils/supabaseTransactionUtils';
+import { EXPENSE_CATEGORIES } from '@/constants/categoryIcons';
 
 // 월 이름 재노출
 export { MONTHS_KR };
@@ -52,8 +53,20 @@ export const useTransactions = () => {
       // 로컬 스토리지에서 트랜잭션 데이터 가져오기
       const localData = loadTransactionsFromStorage();
       
+      // 지원되는 카테고리로 필터링
+      const filteredData = localData.map(transaction => {
+        // 트랜잭션의 카테고리가 현재 지원되는 카테고리가 아니면 '기타'로 변경
+        if (transaction.type === 'expense' && !EXPENSE_CATEGORIES.includes(transaction.category)) {
+          return {
+            ...transaction,
+            category: '생활비' // 기본값으로 '생활비' 사용
+          };
+        }
+        return transaction;
+      });
+      
       // 로컬 데이터가 있으면 사용
-      setTransactions(localData);
+      setTransactions(filteredData);
       
       // 예산 가져오기
       const budget = loadBudgetFromStorage();