diff --git a/sstreasury/views.py b/sstreasury/views.py
index 689a451..f2de186 100644
--- a/sstreasury/views.py
+++ b/sstreasury/views.py
@@ -654,15 +654,30 @@ def claim_processing(request):
 		if request.POST['action'] == 'Export':
 			claims = models.ReimbursementClaim.objects.filter(state=models.ClaimState.APPROVED.value).all()
 			claims = [c for c in claims if request.POST.get('claim_{}'.format(c.id), False)]
+			claims.sort(key=lambda c: '{}/{}{}/{}'.format(c.payee_name.strip(), c.payee_bsb.strip()[:3], c.payee_bsb.strip()[-3:], c.payee_account.strip()))
 			
 			aba_file = io.BytesIO()
 			
 			aba.write_descriptive(aba_file, bank_name=settings.ABA_BANK_NAME, user_name=settings.ABA_USER_NAME, bank_code=settings.ABA_BANK_CODE, description='Reimburse', date=timezone.now())
 			
-			for claim in claims:
-				aba.write_detail(aba_file, dest_bsb=claim.payee_bsb, dest_account=claim.payee_account, cents=claim.get_total()*100, dest_name=claim.payee_name, reference='RE-{}'.format(claim.id), src_bsb=settings.ABA_SRC_BSB, src_account=settings.ABA_SRC_ACC, src_name=settings.ABA_USER_NAME)
+			# CommBank requires only one entry per payee
+			num_records = 0
+			for _, payee_claims in itertools.groupby(claims, key=lambda c: '{}/{}{}/{}'.format(c.payee_name.strip(), c.payee_bsb.strip()[:3], c.payee_bsb.strip()[-3:], c.payee_account.strip())):
+				payee_claims = list(payee_claims)
+				aba.write_detail(
+					aba_file,
+					dest_bsb=payee_claims[0].payee_bsb,
+					dest_account=payee_claims[0].payee_account,
+					cents=sum(c.get_total() for c in payee_claims)*100,
+					dest_name=payee_claims[0].payee_name,
+					reference='RE{}'.format(' '.join(str(c.id) for c in payee_claims)),
+					src_bsb=settings.ABA_SRC_BSB,
+					src_account=settings.ABA_SRC_ACC,
+					src_name=settings.ABA_USER_NAME
+				)
+				num_records += 1
 			
-			aba.write_total(aba_file, credit_cents=sum(c.get_total() for c in claims)*100, num_detail_records=len(claims))
+			aba.write_total(aba_file, credit_cents=sum(c.get_total() for c in claims)*100, num_detail_records=num_records)
 			aba_file.flush()
 			
 			response = HttpResponse(aba_file.getvalue(), content_type='text/plain')