diff --git a/client/components/tracker/PaymentProgress.jsx b/client/components/tracker/PaymentProgress.jsx
index 53bea27..0ee7236 100644
--- a/client/components/tracker/PaymentProgress.jsx
+++ b/client/components/tracker/PaymentProgress.jsx
@@ -11,7 +11,7 @@ export function PaymentProgress({ row, threshold, onOpen, onMarkFullAmount, comp
 
   const amountLabel = (() => {
     if (summary.paid === 0) return '—';
-    if (summary.overpaid > 0) return `${fmt(summary.paidTowardDue)} · overpaid`;
+    if (summary.overpaid > 0) return `${fmt(summary.paid)} · overpaid`;
     if (summary.remaining > 0) return `${fmt(summary.paidTowardDue)} paid`;
     return fmt(summary.paidTowardDue);
   })();
diff --git a/services/billsService.js b/services/billsService.js
index 2e18431..31fa0a5 100644
--- a/services/billsService.js
+++ b/services/billsService.js
@@ -247,11 +247,12 @@ function validateBillData(data, existingBill = null) {
 
   const validCycleTypes = getValidCycleTypes();
 
-  // name is required
-  if (!data.name) {
+  // name is required; fall back to existing value on partial updates
+  const nameVal = data.name !== undefined ? data.name : existingBill?.name;
+  if (!nameVal) {
     errors.push({ field: 'name', message: 'name is required' });
   }
-  normalized.name = data.name || null;
+  normalized.name = nameVal || null;
 
   // due_day is required
   if (data.due_day === undefined || data.due_day === null) {