diff --git a/src/cljs/auto_ap/views/pages/unpaid_invoices.cljs b/src/cljs/auto_ap/views/pages/unpaid_invoices.cljs
index 75211376..1287384d 100644
--- a/src/cljs/auto_ap/views/pages/unpaid_invoices.cljs
+++ b/src/cljs/auto_ap/views/pages/unpaid_invoices.cljs
@@ -641,7 +641,10 @@
   (let [data @(re-frame/subscribe [::edit-invoice])
         change-event [::events/change-form [::edit-invoice]]
         locations (get-in @(re-frame/subscribe [::subs/clients-by-id]) [(:client-id data) :locations])
-        min-total (- (:total (:original data)) (:outstanding-balance (:original data)))
+        min-total (if (= (:total (:original data)) (:outstanding-balance (:original data)))
+                    nil
+                    
+                    (- (:total (:original data)) (:outstanding-balance (:original data))))
         
         should-select-location? (and locations
                                     (> (count locations) 1))]
@@ -650,7 +653,7 @@
                    :action-text "Save"
                    :save-event [::edit-invoice-save]
                    :can-submit? (and #_(s/valid? ::invoice/invoice data)
-                                     (>= (:total data) min-total))}
+                                     (or (not min-total) (>= (:total data) min-total)))}
      
      [horizontal-field
       [:label.label  "Date"]
@@ -741,7 +744,14 @@
          [:div.dropdown-trigger
           [:button.button.is-success {:aria-haspopup true
                                       :on-click (dispatch-event [::print-checks-clicked ])
-                                      :disabled (if (seq checked-invoices)
+                                      :disabled (if (and (seq checked-invoices)
+                                                         (->> checked-invoices
+                                                              vals
+                                                              (group-by #(get-in % [:vendor :id]))
+                                                              (reduce-kv (fn [negative? _ invoices]
+                                                                           (or negative? (< (reduce + 0 (map (fn [x] (-> x :outstanding-balance js/parseFloat)) invoices) ) 0)))
+                                                                         false)
+                                                              not))
                                                   ""
                                                   "disabled")