Why am I no longer paying SUI/Social Security Tax?

There are certain employee and employer taxes that are calculated on a set amount of income called a wage base limit.  Once an employee has reached the wage base limit, they no longer pay into these taxes. 

The Social Security wage base limit for 2020 is $137,700. 

Each state determines their own SUI wage base limit.  Attached please find the 2020 State wage bases.