Final answer:
Teresa's excess business loss for 2020 is calculated by subtracting her gross income from her total deductions, resulting in an excess business loss of $310,000 for that year.
Step-by-step explanation:
The question pertains to taxation and specifically addresses the concept of excess business loss as it applies to a taxpayer operating a sole proprietorship. In terms of calculating excess business loss, gross income and deductions need to be considered. Teresa, the taxpayer in question, has a gross income of $190,000 and deductions totaling $500,000.
Excess business loss would typically be calculated as the amount by which total deductions for the tax year exceed gross income plus a threshold amount. As of the 2020 tax year, the threshold amount for single taxpayers is $262,000 (adjusted annually for inflation). However, the CARES Act has modified these limits for certain years. In Teresa's case, with $190,000 in gross income and $500,000 in deductions, her excess business loss would be:
$500,000 (deductions) - $190,000 (gross income) = $310,000
Thus, Teresa's excess business loss for 2020 is $310,000. Keep in mind that tax laws can change and it is always advisable to consult a tax professional or refer to the latest IRS guidelines for the most accurate and up-to-date information.