Part 1:

Miss Arkin owns a profitable sole proprietorship. Her filing status is single. For each of the following three cases compute her 2018 self- employment tax and any additional Medicare tax on earned income. Show your work.

a. Miss Arkins net profit from Schedule C was $64,000. She had no other earned income.

b. Miss Arkins net profit from Schedule C was $64,000, and she received a $90,000 salary from an employer.

c. Miss Arkins net profit from Schedule C was $ 14,000, and she received a $140,000 salary from an employer.

Part 2:

Miss Arkins net profit from Schedule C was $64,000, and she received a $200,000 salary from an employer. What is the total amount of FICA taxes (self-employment and employment related, including the additional .9% Medicare tax) does Miss Arkin owe for the year?