diff --git a/backend/src/routes/companies.ts b/backend/src/routes/companies.ts
index 88337c4..b89664b 100644
--- a/backend/src/routes/companies.ts
+++ b/backend/src/routes/companies.ts
@@ -30,7 +30,7 @@ router.get('/', wrap(async (_req: AuthRequest, res: Response): Promise<void> =>
 router.post('/', validate(companySchema), wrap(async (req: AuthRequest, res: Response): Promise<void> => {
   const { name, email, extra_emails } = req.body;
   const result = await db.query(
-    `INSERT INTO companies (name, email, extra_emails) VALUES ($1, $2, $3) RETURNING *`,
+    `INSERT INTO companies (name, email, extra_emails) VALUES ($1, $2, $3::text[]) RETURNING *`,
     [name, email, extra_emails]
   );
   res.status(201).json(result.rows[0]);
@@ -41,7 +41,7 @@ router.put('/:id', validate(companySchema), wrap(async (req: AuthRequest, res: R
   const { name, email, extra_emails } = req.body;
   const result = await db.query(
     `UPDATE companies
-     SET name=$1, email=$2, extra_emails=$3, updated_at=NOW()
+     SET name=$1, email=$2, extra_emails=$3::text[], updated_at=NOW()
      WHERE id=$4 AND is_active=TRUE
      RETURNING *`,
     [name, email, extra_emails, req.params.id]
diff --git a/frontend/src/pages/MyInvoices.tsx b/frontend/src/pages/MyInvoices.tsx
index b344f4c..bf490f4 100644
--- a/frontend/src/pages/MyInvoices.tsx
+++ b/frontend/src/pages/MyInvoices.tsx
@@ -436,6 +436,15 @@ export default function MyInvoices() {
   const total      = listData?.total ?? 0;
   const totalPages = Math.ceil(total / PAGE_SIZE) || 1;
 
+  // Total cumulé par ligne (somme de toutes les lignes précédentes + la ligne courante)
+  const runningTotals = useMemo(() => {
+    let sum = 0;
+    return invoices.map(inv => {
+      sum += Number(inv.amount) || 0;
+      return sum;
+    });
+  }, [invoices]);
+
   // Compact page buttons (up to 5 around current)
   const pageButtons = useMemo(() => {
     if (totalPages <= 5) return Array.from({ length: totalPages }, (_, i) => i + 1);
@@ -654,6 +663,9 @@ export default function MyInvoices() {
                   <SortHeader label="Catégorie"    field="category_name" current={sortBy} dir={sortDir} onSort={handleSort} />
                   <SortHeader label="Fournisseur"  field="supplier"      current={sortBy} dir={sortDir} onSort={handleSort} />
                   <SortHeader label="Montant"      field="amount"        current={sortBy} dir={sortDir} onSort={handleSort} right />
+                  <th className="px-3 py-3 text-right text-xs font-semibold text-indigo-400 uppercase tracking-wide whitespace-nowrap">
+                    Montant add
+                  </th>
                   <th className="px-3 py-3 text-left text-xs font-semibold text-gray-500 uppercase tracking-wide whitespace-nowrap">
                     Statut
                   </th>
@@ -663,7 +675,7 @@ export default function MyInvoices() {
                 </tr>
               </thead>
               <tbody className="divide-y divide-gray-50">
-                {invoices.map((inv) => (
+                {invoices.map((inv, idx) => (
                   <tr key={inv.id} className="hover:bg-gray-50/60 transition-colors">
 
                     {/* Date d'envoi */}
@@ -691,6 +703,11 @@ export default function MyInvoices() {
                       {fmtAmount(inv.amount)}
                     </td>
 
+                    {/* Montant add (total cumulé) */}
+                    <td className="px-3 py-3 text-right tabular-nums whitespace-nowrap text-indigo-500 text-xs font-medium">
+                      {fmtAmount(runningTotals[idx])}
+                    </td>
+
                     {/* Statut */}
                     <td className="px-3 py-3 whitespace-nowrap">
                       <StatusBadge