diff --git a/src/services/form16.service.ts b/src/services/form16.service.ts
index a62c194..eb6230d 100644
--- a/src/services/form16.service.ts
+++ b/src/services/form16.service.ts
@@ -709,8 +709,7 @@ function sanitizeForm16PdfCertSegment(text: string): string {
 
 /**
  * PDF file name after successful 26AS match + credit note:
- * [TAN]_[AY]_[Quarter]_[Name and address of deductor]_[Certificate][_Vn].pdf
- * Revised submissions (version > 1) append _V2, _V3, ...
+ * [TAN]_[Assessment Year]_[Quarter]_[Name and address of deductor]_[Certificate].pdf
  */
 function buildForm16CreditNoteSuccessPdfFileName(sub: Form16aSubmission): string {
   const tan = normalizeTanNumber(String(sub.tanNumber || ''))
@@ -730,13 +729,12 @@ function buildForm16CreditNoteSuccessPdfFileName(sub: Form16aSubmission): string
   if (!nameAddr) nameAddr = String(sub.deductorName || 'Deductor').trim();
   let deductorSan = sanitizeForm16PdfDeductorSegment(nameAddr, 150);
   const certSan = sanitizeForm16PdfCertSegment(String(sub.form16aNumber || ''));
-  const ver = typeof sub.version === 'number' && sub.version > 1 ? `_V${sub.version}` : '';
-  let base = `${tan}_${ay}_${q}_${deductorSan}_${certSan}${ver}`;
+  let base = `${tan}_${ay}_${q}_${deductorSan}_${certSan}`;
   if (base.length > 220) {
     const over = base.length - 220;
     const shorter = Math.max(20, deductorSan.length - over - 5);
     deductorSan = sanitizeForm16PdfDeductorSegment(nameAddr, shorter);
-    base = `${tan}_${ay}_${q}_${deductorSan}_${certSan}${ver}`;
+    base = `${tan}_${ay}_${q}_${deductorSan}_${certSan}`;
   }
   return `${base}.pdf`;
 }