diff --git a/lnbits/core/crud.py b/lnbits/core/crud.py
index 11e5ceaa4..b37bf375d 100644
--- a/lnbits/core/crud.py
+++ b/lnbits/core/crud.py
@@ -183,19 +183,23 @@ async def get_payments(
     pending: bool = False,
     outgoing: bool = False,
     incoming: bool = False,
+    since: Optional[int] = None,
     exclude_uncheckable: bool = False,
 ) -> List[Payment]:
     """
     Filters payments to be returned by complete | pending | outgoing | incoming.
     """
 
-    args: Any = ()
+    args: List[Any] = []
+    clause: List[str] = []
 
-    clause = []
+    if since != None:
+        clause.append("time > ?")
+        args.append(since)
 
     if wallet_id:
         clause.append("wallet = ?")
-        args = (wallet_id,)
+        args.append(wallet_id)
 
     if complete and pending:
         pass
@@ -230,7 +234,7 @@ async def get_payments(
         {where}
         ORDER BY time DESC
         """,
-        args,
+        tuple(args),
     )
 
     return [Payment.from_row(row) for row in rows]
diff --git a/lnbits/tasks.py b/lnbits/tasks.py
index d671786c8..cfb882bec 100644
--- a/lnbits/tasks.py
+++ b/lnbits/tasks.py
@@ -1,3 +1,4 @@
+import time
 import trio  # type: ignore
 from http import HTTPStatus
 from typing import Optional, List, Callable
@@ -72,7 +73,10 @@ async def check_pending_payments():
     await delete_expired_invoices()
     while True:
         for payment in await get_payments(
-            complete=False, pending=True, exclude_uncheckable=True
+            since=(int(time.time()) - 60 * 60 * 24 * 15),  # 15 days ago
+            complete=False,
+            pending=True,
+            exclude_uncheckable=True,
         ):
             print(" - checking pending", payment.checking_id)
             await payment.check_pending()