Household employers take note: the Social Security Administration has released the 2018 earnings threshold for withholding Social Security and Medicare taxes (often jointly referred to as FICA).
For 2018, if a household employee earns $2100 or more in cash wages, Social Security and Medicare taxes must be withheld. This is a $100 increase from a threshold of $2000 in 2017 and the first increase since 2016.
Employees pay 7.65% for their portion of FICA, and employers match the 7.65% contribution.
Although the threshold represents the minimum that an employee must earn for FICA withholdings, it is important to note that once the threshold is met, taxes are owed on all wages (back to dollar 1) so please plan accordingly.
FICA taxes are never withheld for household employers who employ their spouse, their child who is under 21 years old, their parent (unless an exception is met), or an employee who is under 18 years old at any time during the year unless performing household work is the individuals principal occupation.
The Social Security tax pays for old-age, survivors, and disability benefits for workers and their families. The Medicare tax pays for hospital insurance.