diff --git a/WebContent/WEB-INF/view/salesmgmt/salesMgmt/transactionStatementForm.jsp b/WebContent/WEB-INF/view/salesmgmt/salesMgmt/transactionStatementForm.jsp
index ccb5bbc..b72fa6a 100644
--- a/WebContent/WEB-INF/view/salesmgmt/salesMgmt/transactionStatementForm.jsp
+++ b/WebContent/WEB-INF/view/salesmgmt/salesMgmt/transactionStatementForm.jsp
@@ -389,8 +389,38 @@ $(document).ready(function(){
 	var today = new Date();
 	var days = ['일', '월', '화', '수', '목', '금', '토'];
 	var dateStr = days[today.getDay()] + "요일, " + (today.getMonth() + 1) + "월 " + today.getDate() + ", " + today.getFullYear();
+	
+	// 표시용 날짜 (한글)
 	$("#deliveryDate").text(dateStr);
+	
+	// 전송용 날짜 (YYYY-MM-DD) - hidden input에 저장
+	var year = today.getFullYear();
+	var month = String(today.getMonth() + 1).padStart(2, '0');
+	var day = String(today.getDate()).padStart(2, '0');
+	var isoDate = year + "-" + month + "-" + day;
+	$("#deliveryDateISO").val(isoDate);
+	
 	fn_loadData();
+	
+	// 날짜 수정 시 ISO 형식도 업데이트
+	$("#deliveryDate").on('blur', function() {
+		var dateText = $(this).text().trim();
+		// 날짜 파싱 시도
+		try {
+			// "목요일, 11월 15, 2025" 형식 파싱
+			var match = dateText.match(/(\d+)월\s*(\d+),?\s*(\d{4})/);
+			if (match) {
+				var year = match[3];
+				var month = String(match[1]).padStart(2, '0');
+				var day = String(match[2]).padStart(2, '0');
+				var isoDate = year + "-" + month + "-" + day;
+				$("#deliveryDateISO").val(isoDate);
+				console.log("날짜 업데이트: " + dateText + " → " + isoDate);
+			}
+		} catch(e) {
+			console.error("날짜 파싱 실패:", e);
+		}
+	});
 });
 
 function fn_loadData() {
@@ -555,7 +585,7 @@ function fn_save() {
 	// 수정된 데이터 수집
 	var data = {
 		projectNos: "${param.projectNos}",
-		deliveryDate: $("#deliveryDate").text(),
+		deliveryDate: $("#deliveryDateISO").val(),
 		receiverName: $("#receiverName").text(),
 		registrationNo: $("#registrationNo").text(),
 		supplierName: $("#supplierName").text(),
@@ -629,6 +659,7 @@ function fn_close() {
 		<td class="date-label-cell">납품일</td>
 		<td class="date-value-cell" colspan="4">
 			<span id="deliveryDate" contenteditable="true">수요일, 9월 24, 2025</span>
+			<input type="hidden" id="deliveryDateISO" value="">
 		</td>
 		<td class="supplier-label-cell" rowspan="5">
 			<div style="display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%;">