diff --git a/src/routes/invoices.$invoiceId.tsx b/src/routes/invoices.$invoiceId.tsx
index 9007577..0568b1b 100644
--- a/src/routes/invoices.$invoiceId.tsx
+++ b/src/routes/invoices.$invoiceId.tsx
@@ -141,6 +141,8 @@ function InvoiceDetail() {
 
   const canEdit = isAdmin || invoice.created_by === user?.id;
   const isDraft = invoice.status === "draft";
+  // Line items, notes, and tax can be edited on any non-void invoice (not just drafts).
+  const canModify = canEdit && invoice.status !== "void";
   const balance = Number(invoice.total) - Number(invoice.amount_paid);
 
   const setStatus = async (status: string) => {
@@ -420,7 +422,7 @@ function InvoiceDetail() {
                       <th className="text-right px-3 py-2 font-medium w-[80px]">Qty</th>
                       <th className="text-right px-3 py-2 font-medium w-[100px]">Rate</th>
                       <th className="text-right px-3 py-2 font-medium w-[110px]">Amount</th>
-                      {canEdit && isDraft && <th className="w-[40px]" />}
+                      {canModify && <th className="w-[40px]" />}
                     </tr>
                   </thead>
                   <tbody>
@@ -433,13 +435,13 @@ function InvoiceDetail() {
                           <td className="px-3 py-1.5 text-right tabular-nums text-xs font-semibold text-muted-foreground">
                             {sub.billable ? formatCurrency(sub.subtotal) : "—"}
                           </td>
-                          {canEdit && isDraft && <td />}
+                          {canModify && <td />}
                         </tr>
                         {sub.items.map((it) => (
                           <tr key={it.id} className={`border-t ${!sub.billable ? "text-muted-foreground" : ""}`}>
                             <td className="px-3 py-2 text-xs">{it.work_date ? formatDate(it.work_date) : "—"}</td>
                             <td className="px-3 py-2 align-top">
-                              {canEdit && isDraft ? (
+                              {canModify ? (
                                 <Input className="h-8" defaultValue={it.description}
                                   onBlur={(e) => e.target.value !== it.description && updateItem(it.id, { description: e.target.value })} />
                               ) : (
@@ -454,13 +456,13 @@ function InvoiceDetail() {
                               )}
                             </td>
                             <td className="px-3 py-2 text-right tabular-nums">
-                              {canEdit && isDraft ? (
+                              {canModify ? (
                                 <Input className="h-8 text-right tabular-nums" defaultValue={Number(it.quantity)}
                                   onBlur={(e) => Number(e.target.value) !== Number(it.quantity) && updateItem(it.id, { quantity: Number(e.target.value) })} />
                               ) : Number(it.quantity).toFixed(2)}
                             </td>
                             <td className="px-3 py-2 text-right tabular-nums">
-                              {canEdit && isDraft ? (
+                              {canModify ? (
                                 <Input className="h-8 text-right tabular-nums" defaultValue={Number(it.rate)}
                                   onBlur={(e) => Number(e.target.value) !== Number(it.rate) && updateItem(it.id, { rate: Number(e.target.value) })} />
                               ) : formatCurrency(it.rate)}
@@ -468,7 +470,7 @@ function InvoiceDetail() {
                             <td className="px-3 py-2 text-right tabular-nums font-medium">
                               {sub.billable ? formatCurrency(it.amount) : "—"}
                             </td>
-                            {canEdit && isDraft && (
+                            {canModify && (
                               <td className="px-2 py-2 text-right">
                                 <Button variant="ghost" size="icon" className="h-7 w-7 text-muted-foreground hover:text-destructive" onClick={() => removeItem(it.id)}>
                                   <Trash2 className="h-3.5 w-3.5" />
@@ -481,7 +483,7 @@ function InvoiceDetail() {
                     ))}
                   </tbody>
                 </table>
-                {canEdit && isDraft && (
+                {canModify && (
                   <div className="border-t px-3 py-2 bg-muted/20">
                     <Button variant="ghost" size="sm" onClick={() => addManualItem(g.caseRow?.id ?? null)} disabled={savingItem}>
                       <Plus className="h-3.5 w-3.5 mr-1.5" /> Add line to {g.caseRow?.case_number ?? "this group"}
@@ -492,7 +494,7 @@ function InvoiceDetail() {
             </Card>
           ))}
 
-          {canEdit && isDraft && groups.length === 0 && (
+          {canModify && groups.length === 0 && (
             <Button variant="outline" onClick={() => addManualItem(null)}>
               <Plus className="h-4 w-4 mr-2" /> Add first line item
             </Button>
@@ -501,7 +503,7 @@ function InvoiceDetail() {
           <Card className="border-border/60">
             <CardContent className="p-4 space-y-2">
               <Label className="text-xs uppercase tracking-wider text-muted-foreground">Notes</Label>
-              {canEdit && isDraft ? (
+              {canModify ? (
                 <Textarea defaultValue={invoice.notes ?? ""} rows={3} placeholder="Payment terms, thank-you message…"
                   onBlur={(e) => updateNotes(e.target.value)} />
               ) : (
@@ -519,7 +521,7 @@ function InvoiceDetail() {
               <Row label="Subtotal" value={formatCurrency(invoice.subtotal)} />
               <div className="flex justify-between items-center">
                 <span className="text-muted-foreground">Tax</span>
-                {canEdit && isDraft ? (
+                {canModify ? (
                   <div className="flex items-center gap-1">
                     <Input className="h-7 w-16 text-right tabular-nums" type="number" step="0.01"
                       defaultValue={invoice.subtotal > 0 ? ((Number(invoice.tax) / Number(invoice.subtotal)) * 100).toFixed(2) : "0"}