Has anyone else had a state return reject code OR_FederalTaxLiability_SoftwareUpdate_R18_TY21? if so what did you do?

Are you still experiencing this rejection issue as of today? it is a known experience and was updated as being resolved recently. Several users were able to go back and successfully file their Oregon returns. Please reply letting us know.

Yes the issue has been resolved and my return has been accepted. Thank you!

Great; happy to hear - you are most welcome!