diff --git a/esphome/components/binary_sensor/binary_sensor.h b/esphome/components/binary_sensor/binary_sensor.h
index 9525832705..28c156763a 100644
--- a/esphome/components/binary_sensor/binary_sensor.h
+++ b/esphome/components/binary_sensor/binary_sensor.h
@@ -57,7 +57,12 @@ class BinarySensor : public StatefulEntityBase<bool> {
 
   // ========== INTERNAL METHODS ==========
   // (In most use cases you won't need these)
-  void send_state_internal(bool new_state) { this->set_new_state(new_state); }
+  void send_state_internal(bool new_state) {
+    // Fast path: skip virtual dispatch when state hasn't changed
+    if (this->flags_.has_state && this->state == new_state)
+      return;
+    this->set_new_state(new_state);
+  }
 
   /// Return whether this binary sensor has outputted a state.
   virtual bool is_status_binary_sensor() const;