Boris is single and earns wages of $350,000. In Tax Year 2021, he also owns a sole proprietorship with $210,000 of income and $480,000 of allowed deductions ($270,000 loss). Boris has enough tax basis to cover the loss and is considered at risk for the loss amount, and he materially participates in the activity. What is the amount of excess business loss he will carry forward? $10,000 $80,000 $260,000 $270,000