She didn't have any withholding on the W2 box 2? If she had no withholding at all I get her tax is between 5,135 and 7,325 for MFS over 65. Check her return. What lines look wrong?
Are you using the Online version? Before filing, You can preview the 1040 or print the whole return
https://ttlc.intuit.com/community/accessing/help/how-do-i-preview-my-turbotax-online-return-before-f...
