A small business with $100,000 in profit can take a $20,000 (20%) QBI deduction, reducing taxable income to $80,000.
"you get a 20% tax break for doing nothing except being a small business owner. So, for example, let's assume that you make $200,000 in revenue. Then you have your expenses. Whatever your expenses are, your payroll, your rent, your softwares, you have $100,000 in expenses, which leaves you with $100,000 of profit. ... you get to qualify now for a 20% tax write off. So, you take a 20% deduction, which in this case is $20,000, and now you get to tell the IRS, hey, my taxable income is $80,000."