diff --git a/src/main/resources/templates/fixed_cost_create.html b/src/main/resources/templates/fixed_cost_create.html
index c6397e9..0c478d1 100644
--- a/src/main/resources/templates/fixed_cost_create.html
+++ b/src/main/resources/templates/fixed_cost_create.html
@@ -40,8 +40,8 @@
 						<select class="form-select" id="transactionType">
 
 							<option value="">選択してください</option>
-							<option value="1">支出</option>
-							<option value="2">収入</option>
+							<option value="0">支出</option>
+							<option value="1">収入</option>
 
 						</select>
 					</div>
@@ -70,7 +70,7 @@
 					<div class="mb-3">
 						<label class="form-label" for="amount">金額</label>
 
-						<input class="form-control" type="number" id="amount" th:field="*{amount}" min="0" placeholder="金額を入力してください"
+						<input class="form-control" type="number" id="amount" th:field="*{amount}" min="1" placeholder="金額を入力してください"
 							required>
 					</div>
 
@@ -94,7 +94,7 @@
 					
 					transactionType.addEventListener("change", function () {
 
-						if (this.value === "1") {
+						if (this.value === "0") {
 
 							for (let i = 0; i < expenseList.length; i++) {
 								expenseList[i].style.display = "";
@@ -104,7 +104,7 @@
 								incomeList[i].style.display = "none";
 							}
 
-						} else if (this.value === "2") {
+						} else if (this.value === "1") {
 
 							for (let i = 0; i < expenseList.length; i++) {
 								expenseList[i].style.display = "none";
diff --git a/src/main/resources/templates/transaction_create.html b/src/main/resources/templates/transaction_create.html
index 760047b..8f06bd9 100644
--- a/src/main/resources/templates/transaction_create.html
+++ b/src/main/resources/templates/transaction_create.html
@@ -45,11 +45,11 @@
 								選択してください
 							</option>
 
-							<option value="1">
+							<option value="0">
 								支出
 							</option>
 
-							<option value="2">
+							<option value="1">
 								収入
 							</option>
 
@@ -124,15 +124,15 @@
 		const tType = '[[${session.tType}]]';
 		
 		if (tType == "0") {
-			transactionType.value = 1;
+			transactionType.value = 0;
 		} else {
-			transactionType.value = 2;
+			transactionType.value = 1;
 		}
 		
 		
 		transactionType.addEventListener("change", function () {
 
-			if (this.value === "1") {
+			if (this.value === "0") {
 
 				for (let i = 0; i < expenseList.length; i++) {
 					expenseList[i].style.display = "";
@@ -142,7 +142,7 @@
 					incomeList[i].style.display = "none";
 				}
 
-			} else if (this.value === "2") {
+			} else if (this.value === "1") {
 
 				for (let i = 0; i < expenseList.length; i++) {
 					expenseList[i].style.display = "none";