UPDATE 9/26/25: HTTP-400 or CC-501 errors in Quicken for Windows after using Check Pay

Quicken Kathryn

Some users are reporting that they see errors during One Step Update after using Check Pay in Quicken for Windows with the latest R64 release.

If you experience these errors during a One Step Update after making a Check Pay payment, we suggest restoring a backup of your Quicken file prior to the R64 release, and avoid using the Check Pay service until a fix is released in a few days; this issue is a priority for our product engineering team.

(QWIN-25839)

Quicken Janean

UPDATE 9/19/25

We do not have an ETA at this time for a resolution for this issue, though our teams continue to work towards a solution. We apologize for any inconvenience, and thank you for your patience. 

Thank you!

Quicken Janean

ONGOING 9/25/26

This issue remains ongoing and our teams continue to work toward a solution. No ETA or further details are available at this time, and this Alert will be updated once more information, updates, etc become available.

We apologize for any inconvenience and appreciate your patience.

Thank you!