diff --git a/src/clj/auto_ap/graphql/checks.clj b/src/clj/auto_ap/graphql/checks.clj
index 5a26c902..49c5f0f9 100644
--- a/src/clj/auto_ap/graphql/checks.clj
+++ b/src/clj/auto_ap/graphql/checks.clj
@@ -321,9 +321,17 @@
             (let [message (str "The bank account " (:bank-account/name bank-account) " does not have a starting check number. Please ask the integreat staff to initialize it.")]
               (throw (ex-info message
                               {:validation-error message}))))
-        _ (if (dollars-0? (reduce + 0.0 (filter
-                                         #(>= % 0.0)
-                                         (map :amount invoice-payments))))
+
+        _ (throw (ex-info "The selected invoices do not have an outstanding balance."
+                          {:validation-error "The selected invoices do not have an outstanding balance."}))
+        _ (if (->> invoices-grouped-by-vendor
+                   vals
+                   (map (fn [payments]
+                          (->> payments
+                               (map (comp invoice-amounts :db/id))
+                               (reduce + 0.0))))
+                   (filter #(<= % 0.0))
+                   seq)
             (throw (ex-info "The selected invoices do not have an outstanding balance."
                             {:validation-error "The selected invoices do not have an outstanding balance."})))
         checks (->> (for [[[vendor-id invoices] index] (map vector invoices-grouped-by-vendor (range))]