diff --git a/nautilus_trader/adapters/sandbox/execution.py b/nautilus_trader/adapters/sandbox/execution.py
index c145d08eacb5..52aa0b384f0b 100644
--- a/nautilus_trader/adapters/sandbox/execution.py
+++ b/nautilus_trader/adapters/sandbox/execution.py
@@ -132,6 +132,7 @@ def __init__(
             clock=self.test_clock,
         )
         self.exchange.register_client(self._client)
+        self.exchange.initialize_account()
 
     def connect(self) -> None:
         """