diff --git a/electrum/address_synchronizer.py b/electrum/address_synchronizer.py
index bf78878d5..87dc7bb49 100644
--- a/electrum/address_synchronizer.py
+++ b/electrum/address_synchronizer.py
@@ -757,6 +757,7 @@ class AddressSynchronizer(Logger, EventListener):
               incorrectly early-exit and return None, e.g. for not-all-ismine-input txs,
               where we could calculate the fee if we deserialized (but to see if we have all
               the parent txs available, we would have to deserialize first).
+              More expensive but more complete alternative: wallet.get_tx_info(tx).fee
         """
         # check if stored fee is available
         fee = self.db.get_tx_fee(txid, trust_server=False)
diff --git a/electrum/gui/qml/qetxfinalizer.py b/electrum/gui/qml/qetxfinalizer.py
index 7e4e6938a..76e03b4d3 100644
--- a/electrum/gui/qml/qetxfinalizer.py
+++ b/electrum/gui/qml/qetxfinalizer.py
@@ -755,7 +755,7 @@ class QETxCpfpFeeBumper(TxFeeSlider, TxMonMixin):
             return
 
         self._parent_tx_size = self._parent_tx.estimated_size()
-        self._parent_fee = self._wallet.wallet.adb.get_tx_fee(self._txid)
+        self._parent_fee = self._wallet.wallet.get_tx_info(self._parent_tx).fee
 
         if self._parent_fee is None:
             self._logger.error(_("Can't CPFP: unknown fee for parent transaction."))
diff --git a/electrum/gui/qt/main_window.py b/electrum/gui/qt/main_window.py
index 9426d74df..5565a0f99 100644
--- a/electrum/gui/qt/main_window.py
+++ b/electrum/gui/qt/main_window.py
@@ -2546,7 +2546,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger, QtEventListener):
         total_size = parent_tx.estimated_size() + new_tx.estimated_size()
         parent_txid = parent_tx.txid()
         assert parent_txid
-        parent_fee = self.wallet.adb.get_tx_fee(parent_txid)
+        parent_fee = self.wallet.get_tx_info(parent_tx).fee
         if parent_fee is None:
             self.show_error(_("Can't CPFP: unknown fee for parent transaction."))
             return