GPT估算effective tax rate，降最多的是9W至40W之間,4個點。收入在60至97percentile

Income Range	Pre-2016 Effective Rate (%)	BBB Effective Rate w/ Credits & Deductions (%)
$0 – $12,000	2	0
$12,001 – $40,000	7	5
$40,001 – $90,000	13	10
$90,001 – $200,000	19	15
$200,001 – $400,000	24	20
$400,001 – $600,000	28	25
$600,001 – $1M	32	30
$1M+	36	36