diff --git a/src/core/sale.h b/src/core/sale.h
new file mode 100644
index 0000000..06f350d
--- /dev/null
+++ b/src/core/sale.h
@@ -0,0 +1,8 @@
+#ifndef SALE_H
+#define SALE_H
+
+class Sale : public Entity {
+
+};
+
+#endif
\ No newline at end of file