diff --git a/src/pretix/plugins/stripe/views.py b/src/pretix/plugins/stripe/views.py
index e346ba67b..5b3a674cd 100644
--- a/src/pretix/plugins/stripe/views.py
+++ b/src/pretix/plugins/stripe/views.py
@@ -233,18 +233,31 @@ def charge_webhook(event, event_json, charge_id, rso):
     is_refund = charge['refunds']['total_count'] or charge['dispute']
     if is_refund:
         known_refunds = [r.info_data.get('id') for r in payment.refunds.all()]
+        migrated_refund_amounts = [r.amount for r in payment.refunds.all() if not r.info_data.get('id')]
         for r in charge['refunds']['data']:
+            a = prov._amount_to_decimal(r['amount'])
+            if r['status'] in ('failed', 'canceled'):
+                continue
+
+            if a in migrated_refund_amounts:
+                migrated_refund_amounts.remove(a)
+                continue
+
             if r['id'] not in known_refunds:
                 payment.create_external_refund(
-                    amount=prov._amount_to_decimal(r['amount']),
+                    amount=a,
                     info=str(r)
                 )
         if charge['dispute']:
             if charge['dispute']['status'] != 'won' and charge['dispute']['id'] not in known_refunds:
-                payment.create_external_refund(
-                    amount=prov._amount_to_decimal(charge['dispute']['amount']),
-                    info=str(charge['dispute'])
-                )
+                a = prov._amount_to_decimal(charge['dispute']['amount'])
+                if a in migrated_refund_amounts:
+                    migrated_refund_amounts.remove(a)
+                else:
+                    payment.create_external_refund(
+                        amount=a,
+                        info=str(charge['dispute'])
+                    )
     elif payment.state in (OrderPayment.PAYMENT_STATE_PENDING, OrderPayment.PAYMENT_STATE_CREATED):
         if charge['status'] == 'succeeded':
             try: