diff --git a/src/routes/invoices.$invoiceId.tsx b/src/routes/invoices.$invoiceId.tsx
index adee1dd..d3dbe86 100644
--- a/src/routes/invoices.$invoiceId.tsx
+++ b/src/routes/invoices.$invoiceId.tsx
@@ -377,41 +377,56 @@ function InvoiceDetail() {
                     </tr>
                   </thead>
                   <tbody>
-                    {g.items.map((it) => (
-                      <tr key={it.id} className="border-t">
-                        <td className="px-3 py-2 text-muted-foreground text-xs">{it.work_date ? formatDate(it.work_date) : "—"}</td>
-                        <td className="px-3 py-2">
-                          {canEdit && isDraft ? (
-                            <Input className="h-8" defaultValue={it.description}
-                              onBlur={(e) => e.target.value !== it.description && updateItem(it.id, { description: e.target.value })} />
-                          ) : (
-                            <div>
-                              <div>{it.description}</div>
-                              {it.user?.full_name && <div className="text-[11px] text-muted-foreground italic">{it.user.full_name}</div>}
-                            </div>
-                          )}
-                        </td>
-                        <td className="px-3 py-2 text-right tabular-nums">
-                          {canEdit && isDraft ? (
-                            <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 ? (
-                            <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)}
-                        </td>
-                        <td className="px-3 py-2 text-right tabular-nums font-medium">{formatCurrency(it.amount)}</td>
-                        {canEdit && isDraft && (
-                          <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" />
-                            </Button>
+                    {g.subsections.map((sub) => (
+                      <FragmentSection key={sub.key}>
+                        <tr className="bg-muted/20 border-t">
+                          <td colSpan={4} className="px-3 py-1.5 text-[11px] uppercase tracking-wider font-semibold text-muted-foreground">
+                            {sub.label}
                           </td>
-                        )}
-                      </tr>
+                          <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 />}
+                        </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">
+                              {canEdit && isDraft ? (
+                                <Input className="h-8" defaultValue={it.description}
+                                  onBlur={(e) => e.target.value !== it.description && updateItem(it.id, { description: e.target.value })} />
+                              ) : (
+                                <div>
+                                  <div className={!sub.billable ? "italic" : ""}>{it.description}</div>
+                                  {it.user?.full_name && <div className="text-[11px] text-muted-foreground italic">{it.user.full_name}</div>}
+                                </div>
+                              )}
+                            </td>
+                            <td className="px-3 py-2 text-right tabular-nums">
+                              {canEdit && isDraft ? (
+                                <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 ? (
+                                <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)}
+                            </td>
+                            <td className="px-3 py-2 text-right tabular-nums font-medium">
+                              {sub.billable ? formatCurrency(it.amount) : "—"}
+                            </td>
+                            {canEdit && isDraft && (
+                              <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" />
+                                </Button>
+                              </td>
+                            )}
+                          </tr>
+                        ))}
+                      </FragmentSection>
                     ))}
                   </tbody>
                 </table>