describe the self-employment tax and how it is collected from entrepreneurs and the self-employed.

Brief Explanations:

Self - employment tax is a tax that self - employed individuals (including entrepreneurs) pay to fund Social Security and Medicare, similar to the FICA taxes (Social Security and Medicare taxes) that are withheld from the paychecks of employees.

What is Self - Employment Tax?

• Components: It consists of two parts, Social Security tax and Medicare tax. As of 2024, the Social Security portion is levied on the first $168,600 (this is the annual wage base, and it is subject to change) of self - employment income at a rate of 12.4%. The Medicare portion is levied on all self - employment income at a rate of 2.9%. Additionally, for high - income earners (single filers with income over $200,000, married filing jointly over $250,000, etc.), there is an additional 0.9% Medicare tax on the excess income.
• Basis of Taxation: Self - employment tax is based on net self - employment income. Net self - employment income is generally calculated as 92.35% of the individual's gross self - employment income (this is because when an employer pays FICA taxes for an employee, the employer pays 7.65% (half of the total 15.3% FICA tax) and the employee pays 7.65%, and for self - employed individuals, this 92.35% factor is used to approximate the "wage" base for tax calculation purposes, as self - employed individuals are both the employer and the employee).

How it is Collected

• Reporting and Payment: Self - employed individuals report their self - employment income and calculate the self - employment tax on Schedule SE, which is then attached to their individual income tax return (Form 1040). They pay the self - employment tax along with their income tax liability (if any) when they file their annual tax return. They may also be required to make estimated tax payments throughout the year. The IRS requires estimated tax payments if an individual expects to owe $1,000 or more in tax (including income tax and self - employment tax) after subtracting withholding and refundable credits, and if their withholding and refundable credits are less than 90% of the current year's tax liability or 100% (110% for higher - income taxpayers) of the previous year's tax liability.
• Income Calculation for Tax: To calculate the net self - employment income, a self - employed individual first determines their gross income from self - employment activities (such as revenue from a business minus allowable business expenses). Then, as mentioned before, 92.35% of this net profit is used as the base for calculating the self - employment tax. For example, if a self - employed person has a net profit of $100,000 from their business, the amount subject to self - employment tax is $100,000×0.9235 = $92,350. Then the Social Security tax would be $92,350×0.124=$11,451.40 (assuming the income is below the wage base limit) and the Medicare tax would be $92,350×0.029 = $2,678.15, and if applicable, the additional Medicare tax on income above the threshold.

Answer:

Self - employment tax is a tax for Social Security and Medicare, based on 92.35% of net self - employment income (12.4% for Social Security on up to $168,600 (2024), 2.9% (plus 0.9% for high - earners) for Medicare on all income). It is reported on Schedule SE (attached to Form 1040) and paid annually, with estimated payments if owed $1,000+ in tax.