diff --git a/src/hooks/transactions/dateUtils.ts b/src/hooks/transactions/dateUtils.ts
index 511f031..a249753 100644
--- a/src/hooks/transactions/dateUtils.ts
+++ b/src/hooks/transactions/dateUtils.ts
@@ -1,3 +1,4 @@
+
 /**
  * 한글 월 이름 배열
  */
@@ -12,23 +13,21 @@ export const MONTHS_KR = [
 export const getCurrentMonth = (): string => {
   const now = new Date();
   const month = now.getMonth(); // 0-indexed
-  const monthNumber = now.getMonth() + 1; // 1-indexed
-  return `${MONTHS_KR[month]} ${monthNumber}`;
+  return `${MONTHS_KR[month]}`;
 };
 
 /**
  * 이전 월 가져오기
  */
 export const getPrevMonth = (currentMonth: string): string => {
-  const parts = currentMonth.split(' ');
-  const currentMonthIdx = MONTHS_KR.findIndex(m => m === parts[0]);
+  const currentMonthIdx = MONTHS_KR.findIndex(m => m === currentMonth);
   
   if (currentMonthIdx === 0) {
     // 1월인 경우 12월로 변경
-    return `${MONTHS_KR[11]} 12`;
+    return `${MONTHS_KR[11]}`;
   } else {
     const prevMonthIdx = currentMonthIdx - 1;
-    return `${MONTHS_KR[prevMonthIdx]} ${prevMonthIdx + 1}`;
+    return `${MONTHS_KR[prevMonthIdx]}`;
   }
 };
 
@@ -36,14 +35,13 @@ export const getPrevMonth = (currentMonth: string): string => {
  * 다음 월 가져오기
  */
 export const getNextMonth = (currentMonth: string): string => {
-  const parts = currentMonth.split(' ');
-  const currentMonthIdx = MONTHS_KR.findIndex(m => m === parts[0]);
+  const currentMonthIdx = MONTHS_KR.findIndex(m => m === currentMonth);
   
   if (currentMonthIdx === 11) {
     // 12월인 경우 1월로 변경
-    return `${MONTHS_KR[0]} 1`;
+    return `${MONTHS_KR[0]}`;
   } else {
     const nextMonthIdx = currentMonthIdx + 1;
-    return `${MONTHS_KR[nextMonthIdx]} ${nextMonthIdx + 1}`;
+    return `${MONTHS_KR[nextMonthIdx]}`;
   }
 };
diff --git a/src/hooks/transactions/filterOperations/useFilterApplication.ts b/src/hooks/transactions/filterOperations/useFilterApplication.ts
index 59c1eb0..d214967 100644
--- a/src/hooks/transactions/filterOperations/useFilterApplication.ts
+++ b/src/hooks/transactions/filterOperations/useFilterApplication.ts
@@ -2,6 +2,7 @@
 import { useCallback, useEffect } from 'react';
 import { Transaction } from '@/components/TransactionCard';
 import { FilteringProps } from './types';
+import { MONTHS_KR } from '../dateUtils';
 
 /**
  * 거래 필터링 로직
@@ -21,8 +22,8 @@ export const useFilterApplication = ({
       console.log('선택된 월:', selectedMonth);
       
       // 선택된 월 정보 파싱
-      const monthInfo = selectedMonth.split(' ');
-      const selectedMonthName = monthInfo[0];
+      const selectedMonthName = selectedMonth;
+      const monthNumber = MONTHS_KR.findIndex(month => month === selectedMonthName) + 1;
       
       // 월별 필터링
       let filtered = transactions.filter(transaction => {
@@ -39,7 +40,6 @@ export const useFilterApplication = ({
           // 오늘 날짜가 해당 월인지 확인
           const today = new Date();
           const currentMonth = today.getMonth() + 1; // 0부터 시작하므로 +1
-          const monthNumber = parseInt(monthInfo[1] || '0');
           return currentMonth === monthNumber;
         }
         
@@ -54,7 +54,6 @@ export const useFilterApplication = ({
           const date = new Date(transaction.date);
           if (!isNaN(date.getTime())) {
             const transactionMonth = date.getMonth() + 1;
-            const monthNumber = parseInt(monthInfo[1] || '0');
             return transactionMonth === monthNumber;
           }
         } catch (e) {