An S corporation is a flow-through entity for federal income tax purposes. Under Section 1363(a), the S corporation itself generally pays no federal income tax (with exceptions for built-in gains tax and passive income tax for former C corporations). Instead, each shareholder includes their pro-rata share of S corporation items on their personal return under Section 1366. This allocation is based on stock ownership percentage and the number of days in the tax year the shareholder held the stock. Answer A is incorrect because the entity-level tax generally does not apply. Answer B is incorrect because shareholders are taxed on their allocable share, not just dividends. Answer D is incorrect because shareholders are taxed annually on their pro-rata shares regardless of when stock is sold.

Under Section 1366(d), a shareholder may deduct S corporation losses only to the extent of their basis in stock plus the adjusted basis of any indebtedness of the S corporation directly to the shareholder. The shareholder has $0 stock basis and $30,000 loan basis, for a total of $30,000 available. The $40,000 loss is limited to $30,000. The remaining $10,000 is a suspended loss that carries forward indefinitely until the shareholder restores sufficient basis. Answer A ($0) ignores the debt basis. Answer C ($40,000) exceeds available basis. Answer D ($10,000) is the suspended loss amount, not the deductible portion.

Under Section 1366(a)(1)(A), separately stated items are those that could affect different shareholders' tax liability differently depending on their individual tax situations. Items that must be separately stated include: capital gains and losses (short-term and long-term), Section 1231 gains and losses, charitable contributions, investment interest expense, tax credits (Section 38 and 48), passive activity items, and other items specified in regulations. Answer A (gross receipts), B (COGS), and C (officer salaries) are ordinary business items that are combined into net income from trade or business operations and reported as non-separately stated income.

For S corporation shareholders, the at-risk amount under Section 465 includes: (1) the amount of money contributed; (2) adjusted basis of property contributed; (3) amounts borrowed for which the shareholder is personally liable (recourse debt at the shareholder level); and (4) amounts borrowed from certain related persons. Critically, unlike partnerships where partners' at-risk amounts include their share of recourse liabilities, S corporation shareholders' at-risk amounts generally do not include entity-level liabilities of the S corporation - those liabilities are not owed by the shareholders personally. Answer B is incorrect because entity-level liabilities are not included. Answer C is too narrow. Answer D is partially correct but incomplete.

Suspended losses under Section 1366(d) are released and become deductible as the shareholder restores basis. The $15,000 cash contribution creates $15,000 of new stock basis, which releases $15,000 of the $20,000 suspended loss. The remaining $5,000 continues to be suspended until additional basis is created. Answer A ($0) ignores the basis restoration. Answer C ($20,000) exceeds the basis restored. Answer D (50%) applies an incorrect limitation.

Under Section 1374(d)(7) as modified by the Tax Cuts and Jobs Act, the recognition period for the built-in gains tax is 5 years after the first day the S corporation election is effective. During this 5-year window, if the S corporation recognizes gain that would have been built-in gain on the conversion date, the gain is subject to the BIG tax at the highest corporate rate (21%). After the 5-year period expires, no BIG tax applies. Answer A is incorrect because there is a defined recognition period. Answer B (10 years) was an earlier statutory period before the TCJA. Answer C (3 years) was a temporary provision that applied for certain years.

Under Section 1366(d)(2), any S corporation loss or deduction that is disallowed due to insufficient basis is suspended and carries forward to the following tax year. The suspended loss is treated as incurred in the following year and may be deducted when the shareholder has restored sufficient basis (through additional contributions, loans to the corporation, or income allocation that increases basis). There is no time limit on the carryforward. Answer A is incorrect because suspended losses are not permanently lost; they carry forward. Answer B is incorrect because losses cannot be reallocated to other shareholders. Answer D is incorrect because suspended losses do not affect the shareholder's basis in other investments.

The shareholder's stock basis at the time of sale must be adjusted for the current-year income allocation. Basis increases by the $5,000 of current-year income allocated = $40,000 + $5,000 = $45,000. Gain on sale = $70,000 - $45,000 = $25,000. The gain is capital gain (long-term if held more than one year) from the sale of S corporation stock. The Section 1374 BIG analysis does not affect the shareholder's personal gain on stock sale. Answer A (ordinary income) is incorrect; the sale of stock produces capital gain. Answer B uses the wrong basis (pre-income-allocation). Answer C (Section 1231) applies to business assets, not stock.

Under Section 1363(b), in computing S corporation taxable income, certain deductions available to C corporations are not allowed, specifically: (1) the deduction for net operating losses under Section 172; and (2) special deductions allowed to corporations under Sections 241-247, including the dividends-received deduction. The rationale is that the NOL rules and DRD are entity-level concepts that do not make sense for a pass-through entity where income and losses flow through to shareholders. Answer B is incorrect because S corporations may deduct employee and officer salaries. Answer C is incorrect because interest expense is deductible. Answer D is incorrect because depreciation is deductible.

Each shareholder's taxable income = 50% of $80,000 ordinary income minus 50% of $10,000 corporate-level tax (per Section 1366(f)(2)) = $40,000 - $5,000 = $35,000. Distributions are not additional income; they reduce stock basis and are not deducted from pass-through income. Answer A is correct. Answer B is incorrect because it counts only the $20,000 distribution as taxable income and ignores the pass-through ordinary income entirely. Answer C arrives at the correct pre-adjustment income allocation of $40,000 per shareholder but fails to reduce it by each shareholder's pro-rata share of the corporate-level tax under Section 1366(f)(2), overstating each shareholder's taxable income by $5,000. Answer D incorrectly reduces pass-through income by the distribution amount; distributions reduce stock basis but are not subtracted from ordinary income for taxable income purposes.