diff --git a/src/Bank.cpp b/src/Bank.cpp
new file mode 100644
index 0000000..ea5d8c2
--- /dev/null
+++ b/src/Bank.cpp
@@ -0,0 +1,28 @@
+//
+// Created by gustavomiranda on 27/09/24.
+//
+#include <cmath>
+#include "Bank.h"
+
+Bank::Bank(double taxvalue) {
+    setTax(taxvalue);
+    money = 0;
+}
+
+void Bank::depositMoney(int value) {
+    money += value;
+}
+
+void Bank::withdrawMoney(int value) {
+    if (money >= value){
+        money -= value;
+    }
+}
+
+int Bank::getMoney() {
+    return money;
+}
+
+void Bank::updateMoney() {
+    money = std::round(money * (1+tax));
+}
\ No newline at end of file
diff --git a/src/include/Bank.h b/src/include/Bank.h
new file mode 100644
index 0000000..6a3b15c
--- /dev/null
+++ b/src/include/Bank.h
@@ -0,0 +1,22 @@
+//
+// Created by gustavomiranda on 27/09/24.
+//
+
+#ifndef DRUGWARS_BANK_H
+#define DRUGWARS_BANK_H
+
+class Bank{
+private:
+    int money;
+    double tax;
+    void setTax(double value);
+public:
+    Bank(double taxvalue);
+    void depositMoney(int value);
+    void withdrawMoney(int value);
+    int getMoney();
+    void updateMoney();
+
+};
+
+#endif //DRUGWARS_BANK_H