diff --git a/src/main/java/Transaction.java b/src/main/java/Transaction.java
new file mode 100644
index 0000000..18d07ed
--- /dev/null
+++ b/src/main/java/Transaction.java
@@ -0,0 +1,31 @@
+public abstract class Transaction {
+    private Share share;
+    private int week;
+    private TransactionCalculator calculator;
+    protected boolean committed;
+
+    protected Transaction(Share share, int week, TransactionCalculator calculator) {
+        this.share = share;
+        this.week = week;
+        this.calculator = calculator;
+    }
+
+    public Share getShare() {
+        return this.share;
+    }
+
+    public int getWeek() {
+        return this.week;
+    }
+
+    public TransactionCalculator getCalculator() {
+        return this.calculator;
+    }
+
+    public boolean isCommitted() {
+        return this.committed;
+    }
+
+    public abstract void commit(Player player);
+    
+}