2018 Trump Tax Cut沒有dependent exemption了,所以LZ是白折騰

https://www.cnbc.com/2017/12/20/families-will-feel-the-pain-of-losing-this-tax-break.html

• Tax bill raises standard deductions but chops out personal exemptions.
• Personal exemptions are $4,050 per taxpayer, spouse and qualifying dependent in 2017.