We recommend that you back
up your QuickBooks data file daily.
However, if you have not made a backup copy of your QuickBooks data since
you started using the payroll service, you need to follow the procedure for
reestablishing service. However, if you
have a current backup copy, you can restore your data file and then connect to
the payroll service to check that your
payroll information in QuickBooks and the payroll information at the
payroll service match.