line 24 is the sum of lines 16,17 and 23 less lines 19 and 20. we don't know which line has the error. some are compute based on what you entered. in any case Turbotax never pays the additional taxes, since you would owe those anyway, only penalties and interest if it's their calculation error. you can file a claim
https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-account-billing/submit-claim-turb...
