Regarding the QBI deduction:

a. The capital investment limit is equal to 5% of the book value of any real or personal property.

b.The QBI deduction is capped at 15% of the W2 wages paid by the business.

c.For taxpayers whose income is above the threshold amounts, a qualified trade or business includes any trade or business other than those providing services as an employee.

d.The W2 Wages/Capital Investment Limit applies to all taxpayers, regardless of their taxable income. e.If a taxpayer has a qualified business loss in one year, no QBI deduction is allowed.