In general, sick pay made to employees requires all of the
Social Security, Medicare, and income tax withholdings that are calculated for
normal wages; however, there are a few exceptions. For example, if an employee
dies and sick pay is made to his or her estate in the following calendar year,
this amount is not subject to any of the usual payroll withholdings or taxes.
The same rules apply if sick payments are made to an employee who has been
absent from work for at least six months.
If employees contribute to a sick pay plan with after-tax dollars,
then any payments made to them from that plan will not require any withholdings
or payroll taxes, on the grounds that the employee already paid those taxes on
the initial cash used to fund the plan. Alternatively, if the sick pay plan is
funded with pretax dollars (as can occur through a cafeteria plan), then any pay
from the sick pay plan will require income tax withholdings and all other normal
payroll taxes, on the grounds that the employee would otherwise never pay taxes
on the wages paid.
If employees are paid sick pay through a third party, such as
an independent insurance company, the third party has no obligation to withhold
income taxes, though it can do so if an employee submits to it a Form W-4S that
states how much is to be withheld. The minimum amount that
can be withheld in this manner is $20 per week.