https://accountants.intuit.com/support/en-us/help-article/diagnostics/troubleshooting-lacerte-diagnostic-ref-37838-37840/L5axNMBIF_US_en_US
Troubleshooting Lacerte diagnostic ref. 37838 and 37840
Mar 25, 2026 - One of the following e-file critical diagnostics is generating in the Individual module:An amount on the "Penalty for underpayment of estimated tax" line on the
troubleshootinglacertediagnosticref