diff --git a/e-voting-system/backend/routes/votes.py b/e-voting-system/backend/routes/votes.py
index c1f66c2..a9e7bf7 100644
--- a/e-voting-system/backend/routes/votes.py
+++ b/e-voting-system/backend/routes/votes.py
@@ -112,6 +112,60 @@ async def submit_simple_vote(
         ip_address=request.client.host if request else None
     )
 
+    # Generate transaction ID for blockchain
+    import uuid
+    transaction_id = f"tx-{uuid.uuid4().hex[:12]}"
+
+    # Submit vote to PoA blockchain
+    blockchain_client = get_blockchain_client()
+    await blockchain_client.refresh_validator_status()
+
+    blockchain_response = {
+        "status": "pending"
+    }
+
+    try:
+        async with BlockchainClient() as poa_client:
+            # Submit vote to PoA network
+            submission_result = await poa_client.submit_vote(
+                voter_id=current_voter.id,
+                election_id=election_id,
+                encrypted_vote=ballot_hash,  # Use ballot hash as data
+                transaction_id=transaction_id
+            )
+            blockchain_response = {
+                "status": "submitted",
+                "transaction_id": transaction_id,
+                "block_hash": submission_result.get("block_hash"),
+                "validator": submission_result.get("validator")
+            }
+            logger.info(
+                f"Vote submitted to PoA: voter={current_voter.id}, "
+                f"election={election_id}, tx={transaction_id}"
+            )
+    except Exception as e:
+        # Fallback: Record in local blockchain
+        logger.warning(f"PoA submission failed: {e}. Falling back to local blockchain.")
+        try:
+            blockchain = blockchain_manager.get_or_create_blockchain(election_id)
+            block = blockchain.add_block(
+                encrypted_vote=ballot_hash,
+                transaction_id=transaction_id
+            )
+            blockchain_response = {
+                "status": "submitted_fallback",
+                "transaction_id": transaction_id,
+                "block_index": block.index,
+                "warning": "Vote recorded in local blockchain (PoA validators unreachable)"
+            }
+        except Exception as fallback_error:
+            logger.error(f"Fallback blockchain also failed: {fallback_error}")
+            blockchain_response = {
+                "status": "database_only",
+                "transaction_id": transaction_id,
+                "warning": "Vote recorded in database but blockchain submission failed"
+            }
+
     # Mark voter as having voted
     services.VoterService.mark_as_voted(db, current_voter.id)
 
@@ -119,7 +173,8 @@ async def submit_simple_vote(
         "message": "Vote recorded successfully",
         "id": vote.id,
         "ballot_hash": ballot_hash,
-        "timestamp": vote.timestamp
+        "timestamp": vote.timestamp,
+        "blockchain": blockchain_response
     }