Why is TurboTax calculating a $7 QBI deduction when it should be 20% of $6,081?

Review the QBI calculation worksheet to see how TurboTax calculated the QBI.

The deduction amount depends on the taxpayer's total taxable income, which includes wages, interest, capital gains (etc.) in addition to income generated by the business. Once the taxable income reaches or exceeds $163,300 ($326,600 if filing jointly), the type of business also comes into play.

At incomes below that level, the deduction is 20% of either taxable income (minus capital gains and dividends) or the QBI, whichever is less.

At higher income levels, the deduction is reduced or eliminated, depending on the nature of the business. The calculations also get quite complicated, but TurboTax easily handles them and will figure out how much of a deduction you’re entitled to.

Please see the entire TurboTax FAQ What is the Qualified Business Income (QBI) deduction?