diff --git a/app.py b/app.py
index 98a9c79..6cd0635 100644
--- a/app.py
+++ b/app.py
@@ -33,6 +33,7 @@ def initialize_database():
             user_id INTEGER NOT NULL,
             entrytype TEXT NOT NULL CHECK(entrytype IN ('in', 'out')),
             ts TEXT NOT NULL,
+            paid BOOLEAN NOT NULL DEFAULT FALSE,
             FOREIGN KEY(user_id) REFERENCES users(id)
         )
     """)
@@ -64,9 +65,9 @@ def create_entry(user_id, entry_type, client_timestamp=None):
     else:
         timestamp = utc_now()
     cursor.execute("""
-        INSERT INTO entries (user_id, entrytype, ts)
-        VALUES (?, ?, ?)
-    """, (user_id, entry_type, timestamp.isoformat()))
+        INSERT INTO entries (user_id, entrytype, ts, paid)
+        VALUES (?, ?, ?, ?)
+    """, (user_id, entry_type, timestamp.isoformat(), False))
     conn.commit()
     conn.close()
 
@@ -202,7 +203,7 @@ def api_get_users():
 def api_get_entries():
     conn = get_db_connection()
     entries = conn.execute("""
-        SELECT id, user_id, entrytype, ts
+        SELECT id, user_id, entrytype, ts, paid
         FROM entries
         ORDER BY ts DESC
     """).fetchall()
@@ -215,6 +216,7 @@ def api_create_entry():
     user_id = data.get("user_id")
     entry_type = data.get("entrytype")
     client_timestamp = data.get("timestamp")
+    paid = data.get("paid", False)
     if entry_type not in ("in", "out"):
         return jsonify({
             "error": "Invalid entrytype"
@@ -222,7 +224,8 @@ def api_create_entry():
     create_entry(
         user_id,
         entry_type,
-        client_timestamp
+        client_timestamp,
+        paid
     )
     return jsonify({
         "status": "success"