CPA Exam — REG (Regulation)Federal Taxation of IndividualsHard

A client operates a sole proprietorship. For the current tax year, their net earnings from self-employment are $80,000. What is the amount of their deductible self-employment tax?

  1. A$0
  2. B$5,652
  3. C$11,304
  4. D$6,120
Show answer & explanation

Correct answer: B. $5,652

Self-employment tax is 15.3% (12.4% for Social Security up to the annual limit, and 2.9% for Medicare with no limit) on 92.35% of net earnings from self-employment. One-half of the self-employment tax paid is deductible as an above-the-line deduction.

Why the other options are wrong

  • A. This is incorrect; a portion of self-employment tax is always deductible.
  • C. This is the total self-employment tax, not the deductible portion.
  • D. This is an incorrect calculation of the deductible portion.

Deductible Self-Employment Tax

Self-employed individuals must pay both the employer and employee portions of Social Security and Medicare taxes (Self-Employment Tax). One-half of this self-employment tax is deductible as an above-the-line deduction.

  • Self-employment tax is calculated on 92.35% of net earnings from self-employment.
  • The tax rate is 15.3% (12.4% Social Security, 2.9% Medicare).
  • There is an annual wage base limit for the Social Security portion.
  • One-half of the self-employment tax paid is deductible on Schedule 1 of Form 1040.

Memory trick: Self-employment tax: 92.35% of income, then 15.3% tax, then HALF for the deduction.

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