Final answer:
To calculate the total Social Security and Medicare tax burden on a sole proprietorship earning $300,000 profit, add the Social Security tax, Medicare tax, and federal and state taxes. The total tax burden is $59,475.
Step-by-step explanation:
To calculate the total Social Security and Medicare tax burden on a sole proprietorship with a profit of $300,000, we need to consider the deductions and tax rates for each tax.
Social Security tax is imposed at a rate of 12.4% on income up to a certain wage limit, which was $137,700 in 2020. Since the profit is below this wage limit, the Social Security tax will be 12.4% of the profit.
Medicare tax is fixed at a rate of 2.9%, with no upper ceiling. Therefore, the Medicare tax will be 2.9% of the profit.
For federal and state taxes, assuming a 15% tax rate on the gross annual income, we calculate the tax burden as 15% of the profit.
To calculate the total tax burden, we add the Social Security tax, Medicare tax, and federal and state taxes:
Total tax = Social Security tax + Medicare tax + Federal and State taxes.
Plugging in the numbers, we get:
Total tax = 300,000 * (12.4% + 2.9% + 15%) = $59,475.