diff --git a/app/Models/CashRecord.php b/app/Models/CashRecord.php
index ea4c0a6..c53e270 100644
--- a/app/Models/CashRecord.php
+++ b/app/Models/CashRecord.php
@@ -17,6 +17,13 @@ class CashRecord extends Model
         'verified_at' => 'datetime',
     ];
 
+    protected static function booted(): void
+    {
+        static::creating(function (CashRecord $record) {
+            $record->created_by ??= auth()->id();
+        });
+    }
+
     public function category(): BelongsTo
     {
         return $this->belongsTo(CashCategory::class, 'category_id');