Just cut the first payroll of the year.
If you have not heard but in the so called fiscal cliff deal they let the 2% FICA cut expire. This means you have to withhold the full 6.2% from the employee check. The amount the company have to pay has not changed. This also means the SE tax is up 2% as well.
Quickbooks is on this already. Checks cut payroll and bonus checks last week were different than those cut today.
Happy New Year.