Qualified Business Income (QBI) Deduction (LO 4.10)Rob operates a small plumbing supplies business as a sole proprietor. In 2018, the plumbing business has gross business income of $421,000 and business expenses of $267,000, including wages paid of $58,000. The business sold some land that had been held for investment generating a long-term capital gain of $15,000. The business has $300,000 of qualified business property in 2018. Rob's wife, Marie, has wage income of $250,000. They jointly sold stocks in 2018 and generated a long-term capital gain of $13,000. Rob and Marie have no dependents and in 2018, they take the standard deduction of $24,000.The income threshold for QBI limitations starts at $315,000 for married filing jointly taxpayers. a. What is Rob and Marie's taxable income before the QBI deduction?$b. What is Rob and Marie's QBI?$154,000What is Rob and Marie's QBI deduction?$** Please give explanation and not just the answer. Thank you! **

a. What is Rob and Marie's taxable income before the QBI deduction?

Rob and Marie's taxable income = Marie's wages + long term capital gains - standard deduction = $250,000 + $13,000 - $24,000 = $239,000

b. What is Rob and Marie's QBI?

QBI = total business income - total business expenses = $421,000 - $267,000 = $154,000

What is Rob and Marie's QBI deduction?$

the maximum possible QBI deduction is 20% of the QBI, but it starts to phase out if the couple's other income is more than $315,000 (currently the phase out threshold is a little higher $326,600). Since their taxable income is lower than the threshold, they can deduct the maximum amount = $154,000 x 20% = $30,800

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