Answer:
It will pay 17.411,86 dollar for FICA taxes as self-employed
Step-by-step explanation:
On 2018 the base for FICA taxes was 128,700 dollars
during the year we have income for:
125,000 + 15,600 = 140,600
As it is above the base our sel-employement taxes will be halved by:
140,600 - 128,700 = 11,900
Now:
The self-employees will contribute the FICA taxes "twice" as they act like employee and employers
125,003 - 11,900 = 113.103
so, if medicare is 1.45% and OASDI 6.2%
the self-employed person will pay double this rates:
OASDI
113.103 x (0.062*2) = 14.024,772
MEDICARE
113.103 x (0.0145*2) = 3.279,987
FOR MEDICARE, as we exceed we pay the additional 0.9% for that amount
11,900 x 0.9% = 107,1
Total FICA taxes from self-employed: 17.411,859
Total FICA taxes_ 19.125,459