diff --git a/apps/jurumarble/src/app/my/edit/components/UserInfoEditContainer.tsx b/apps/jurumarble/src/app/my/edit/components/UserInfoEditContainer.tsx
index 49765649..110de3c6 100644
--- a/apps/jurumarble/src/app/my/edit/components/UserInfoEditContainer.tsx
+++ b/apps/jurumarble/src/app/my/edit/components/UserInfoEditContainer.tsx
@@ -60,15 +60,14 @@ function UserInfoEditContainer() {
         variant="primary"
         width="100%"
         height="56px"
-        onClick={() => {
+        onClick={() =>
           updateUserInfo({
             nickname,
             alcoholLimit,
             mbti,
             imageUrl,
-          });
-          router.push(Path.MY_PAGE);
-        }}
+          })
+        }
       >
         완료
       </CompleteButton>
diff --git a/apps/jurumarble/src/app/my/edit/services/useEditProfileService.ts b/apps/jurumarble/src/app/my/edit/services/useEditProfileService.ts
index 18792080..b925e79e 100644
--- a/apps/jurumarble/src/app/my/edit/services/useEditProfileService.ts
+++ b/apps/jurumarble/src/app/my/edit/services/useEditProfileService.ts
@@ -1,7 +1,10 @@
 import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { uploadImageAPI } from "lib/apis/common";
 import { deleteUserAPI, updateUserInfoAPI } from "lib/apis/my";
+import Path from "lib/Path";
 import { queryKeys } from "lib/queryKeys";
+import { useRouter } from "next/navigation";
+import { toast } from "react-toastify";
 
 type UpdateUserInfoRequest = Exclude<Parameters<typeof updateUserInfoAPI>[0], undefined>;
 
@@ -39,9 +42,12 @@ export default function useEditProfileService() {
     queryClient.setQueryData(getQueryKey, (prev: any) => ({ ...prev, mbti: value }));
   };
 
+  const router = useRouter();
+
   const { mutate: updateUserInfo } = useMutation(
     (newUserInfo: UpdateUserInfoRequest) => updateUserInfoAPI(newUserInfo),
     {
+      onSuccess: () => router.push(Path.MY_PAGE),
       onError: () => {
         /**
          * @TODO 서버 메시지와 연동
@@ -51,7 +57,12 @@ export default function useEditProfileService() {
     },
   );
 
-  const { mutate: deleteUser } = useMutation(() => deleteUserAPI());
+  const { mutate: deleteUser } = useMutation(() => deleteUserAPI(), {
+    onSuccess: () => {
+      toast("회원 탈퇴가 완료되었습니다.");
+      router.push(Path.MAIN_PAGE);
+    },
+  });
 
   return {
     onUploadImage,
diff --git a/apps/jurumarble/src/app/register/contexts/RegisterProvider.tsx b/apps/jurumarble/src/app/register/contexts/RegisterProvider.tsx
index 93a77253..25cfbff9 100644
--- a/apps/jurumarble/src/app/register/contexts/RegisterProvider.tsx
+++ b/apps/jurumarble/src/app/register/contexts/RegisterProvider.tsx
@@ -86,6 +86,16 @@ export const RegisterProvider = ({ children }: PropsWithChildren) => {
       : 1;
 
   const onNextStep = () => {
+    if (Number(yearOfBirth) > 2004) {
+      toast.error("2004년 이후 출생자는 가입이 불가능합니다.");
+      setYearOfBirth("");
+      return;
+    } else if (999 < Number(yearOfBirth) && Number(yearOfBirth) < 1900) {
+      toast.error("출생년도를 다시 한번 확인해주세요.");
+      setYearOfBirth("");
+      return;
+    }
+
     currentStepIndex < stepList.length
       ? setStep(stepList[currentStepIndex])
       : onToggleWarningModal();
@@ -141,11 +151,7 @@ export const RegisterProvider = ({ children }: PropsWithChildren) => {
     } else if (step === "STEP2") {
       return gender === null;
     } else if (step === "STEP3") {
-      /**
-       * @TODO 토스트 메시지가 두번씩 뜨는 이슈
-       */
-      Number(yearOfBirth) > 2004 && toast.error("2004년 이후 출생자는 가입이 불가능합니다.");
-      return yearOfBirth === "" || yearOfBirth?.length !== 4 || Number(yearOfBirth) > 2004;
+      return yearOfBirth === "" || yearOfBirth?.length !== 4;
     } else if (step === "STEP4") {
       return Object.values(MBTI).some((value) => value === null);
     }