diff --git a/app/Http/Controllers/Api/ReportsController.php b/app/Http/Controllers/Api/ReportsController.php
index 55537d55db..593afdebf6 100644
--- a/app/Http/Controllers/Api/ReportsController.php
+++ b/app/Http/Controllers/Api/ReportsController.php
@@ -111,6 +111,10 @@ class ReportsController extends Controller
             'item_type',
             'action_source',
             'action_date',
+            'location',
+            'next_audit_date',
+            'days_to_next_audit',
+            'item',
         ];
 
         $total = $actionlogs->count();
@@ -124,6 +128,19 @@ class ReportsController extends Controller
             case 'created_by':
                 $actionlogs->OrderByCreatedBy($order);
                 break;
+            case 'location':
+                $actionlogs->OrderByLocation($order);
+                break;
+            case 'next_audit_date':
+            case 'days_to_next_audit':
+                // days_to_next_audit = next_audit_date - today, so it
+                // sorts in the same order as next_audit_date. One
+                // scope covers both cases; no separate expression.
+                $actionlogs->OrderByAssetNextAuditDate($order);
+                break;
+            case 'item':
+                $actionlogs->OrderByItemName($order);
+                break;
             default:
                 $sort = in_array($request->input('sort'), $allowed_columns) ? e($request->input('sort')) : 'action_logs.created_at';
                 $actionlogs = $actionlogs->orderBy($sort, $order);
diff --git a/app/Models/Actionlog.php b/app/Models/Actionlog.php
index 9ccdb045d3..d58941fc3f 100755
--- a/app/Models/Actionlog.php
+++ b/app/Models/Actionlog.php
@@ -655,4 +655,48 @@ class Actionlog extends SnipeModel
     {
         return $query->leftJoin('users as admin_sort', 'action_logs.created_by', '=', 'admin_sort.id')->select('action_logs.*')->orderBy('admin_sort.first_name', $order)->orderBy('admin_sort.last_name', $order);
     }
+
+    // Audit report (issue #9430): the frontend has advertised location
+    // as sortable for a while but the API whitelist didn't include it,
+    // so clicks silently fell back to created_at. action_logs stores
+    // its own location_id snapshot (see the belongsTo above) so this
+    // is a plain leftJoin on locations, no polymorphic asset walk.
+    public function scopeOrderByLocation($query, $order)
+    {
+        return $query->leftJoin('locations as location_sort', 'action_logs.location_id', '=', 'location_sort.id')
+            ->select('action_logs.*')
+            ->orderBy('location_sort.name', $order);
+    }
+
+    // Also for the audit report: next_audit_date lives on the asset
+    // (the log doesn't snapshot it), so we join to assets on the
+    // polymorphic item_id + item_type pair. Non-Asset item_types get
+    // NULL from the leftJoin and sort naturally at the end.
+    public function scopeOrderByAssetNextAuditDate($query, $order)
+    {
+        return $query->leftJoin('assets as asset_sort', function ($join) {
+            $join->on('action_logs.item_id', '=', 'asset_sort.id')
+                ->where('action_logs.item_type', '=', Asset::class);
+        })
+            ->select('action_logs.*')
+            ->orderBy('asset_sort.next_audit_date', $order);
+    }
+
+    // Item name sort for the audit report (#9430). Only Assets get
+    // audited, so the action_type=audit filter upstream guarantees
+    // item_type=Asset here and a straight Asset join is correct.
+    // Sibling activity reports that sort by item on other action_types
+    // (checkout/checkin/etc.) will get NULL names for non-Asset rows
+    // and sort them at the ends; that matches the pre-refactor state
+    // where item sort silently fell back to created_at, and fixing
+    // truly-polymorphic item sort is a bigger separate change.
+    public function scopeOrderByItemName($query, $order)
+    {
+        return $query->leftJoin('assets as asset_item_sort', function ($join) {
+            $join->on('action_logs.item_id', '=', 'asset_item_sort.id')
+                ->where('action_logs.item_type', '=', Asset::class);
+        })
+            ->select('action_logs.*')
+            ->orderBy('asset_item_sort.name', $order);
+    }
 }
diff --git a/database/migrations/2026_07_30_000001_add_next_audit_date_index_to_assets.php b/database/migrations/2026_07_30_000001_add_next_audit_date_index_to_assets.php
new file mode 100644
index 0000000000..b5c06ce553
--- /dev/null
+++ b/database/migrations/2026_07_30_000001_add_next_audit_date_index_to_assets.php
@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * Speeds up two query paths that sort/filter on assets.next_audit_date:
+ *
+ *   - Audit report sort (#9430) via Actionlog::scopeOrderByAssetNextAuditDate,
+ *     which leftJoins assets on the polymorphic item_id/item_type and
+ *     orders by next_audit_date. Without an index, larger installs
+ *     filesort the entire filtered set per paged click.
+ *   - SendUpcomingAuditReport's dueOrOverdueForAudit scope, which
+ *     filters assets by next_audit_date within a window. Runs
+ *     nightly via the scheduler; on installs with 100k+ assets the
+ *     full-scan cost showed up in slow-query logs.
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('assets', function (Blueprint $table) {
+            $table->index('next_audit_date', 'assets_next_audit_date_index');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('assets', function (Blueprint $table) {
+            $table->dropIndex('assets_next_audit_date_index');
+        });
+    }
+};
diff --git a/resources/views/reports/audit.blade.php b/resources/views/reports/audit.blade.php
index 415602d6f4..5c28bdd2f1 100644
--- a/resources/views/reports/audit.blade.php
+++ b/resources/views/reports/audit.blade.php
@@ -35,8 +35,8 @@
                             <th scope="col" class="col-sm-2" data-field="item" data-sortable="true" data-searchable="true" data-formatter="polymorphicItemFormatter">{{ trans('general.item') }}</th>
                             <th scope="col" class="col-sm-1" data-field="location" data-sortable="true" data-searchable="true" data-formatter="locationsLinkObjFormatter">{{ trans('general.location') }}</th>
                             <th scope="col" class="col-sm-2" data-field="created_at" data-formatter="dateDisplayFormatter" data-sortable="true" data-searchable="true">{{ trans('general.last_audit') }}</th>
-                            <th scope="col" class="col-sm-2" data-field="next_audit_date" data-formatter="dateDisplayFormatter">{{ trans('general.next_audit_date') }}</th>
-                            <th scope="col" class="col-sm-1" data-field="days_to_next_audit">{{ trans('general.days_to_next_audit') }}</th>
+                            <th scope="col" class="col-sm-2" data-field="next_audit_date" data-sortable="true" data-formatter="dateDisplayFormatter">{{ trans('general.next_audit_date') }}</th>
+                            <th scope="col" class="col-sm-1" data-field="days_to_next_audit" data-sortable="true">{{ trans('general.days_to_next_audit') }}</th>
                             <th scope="col" class="col-sm-2" data-field="note" data-sortable="true" data-searchable="true">{{ trans('general.notes') }}</th>
                         </tr>
                         </thead>