Thad a single tax payer has taxable income before the QBI deduction of $187,500. Thad a CPA operates an accounting practice as a single member LLC(which he reports as a sole proprietorship). During 2018, his proprietorship reports net income of $150,000, W–2 wages of $125,000, and $10,000 of qualified property.

What is Thad's qualified business income deduction?