diff --git a/src/main/java/io/company/localhost/service/localvacaService.java b/src/main/java/io/company/localhost/service/localvacaService.java
index 7efa145..57b9c50 100644
--- a/src/main/java/io/company/localhost/service/localvacaService.java
+++ b/src/main/java/io/company/localhost/service/localvacaService.java
@@ -295,11 +295,15 @@ public class localvacaService {
         LocalDate today = LocalDate.now();
         int currentYear = today.getYear();
         int hireYear = hireDate.getYear();
-        int hireMonth = hireDate.getMonthValue();
-
+        
+        // 입사일부터 오늘까지의 전체 근속 개월 수 계산
+        int workMonths = (int) ChronoUnit.MONTHS.between(hireDate, today);
+        
         // 올해 입사자 → 1년 미만: 입사월 이후로 계산
         if (hireYear == currentYear) {
-            return 12 - hireMonth;
+            return 12 - workMonths;
+        }else if(workMonths < 12) {
+        	return 12;
         }
 
         int totalVacation = 15;