QuickBooks Payroll not calculating taxes may be the consequence of misconfigured payroll items, out-of-date tax tables, or improper employee setup. Inaccurate tax returns and paychecks could result from this problem. Restoring accurate tax calculation in QuickBooks Payroll can be accomplished by checking payroll settings, upgrading the program, and examining employee tax information. Do you need help using QuickBooks? To speak with a specialist, call 1.855.738.2784.