An analysis by the Citizens for Tax Justice concludes that they would see a $570 tax reduction.
A small but growing percentage of large companies pay no income taxes, a study by Citizens for Tax Justice showed in October 2000.
Citizens for Tax Justice, a tax research group, called the plan a "flimflam."
The company strongly disputes Citizens for Tax Justices' numbers and reasoning.
The next 20 percent get an average of $657 a year, according to Citizens for Tax Justice in Washington.
Citizens for Tax Justice, a liberal research organization, said more than one-fifth of the benefits would go to just 12 corporations.
The changes would take an average 0.6 percent of family income, said the report, by Citizens for Tax Justice.
Citizens for Tax Justice estimates that the Brown proposal would increase the Federal deficit by $200 billion.
Those figures were developed by Citizens for Tax Justice, a labor-backed research organization.
Married couples making $27,000 to $44,000 will receive $356 this summer, on average, according to an unchallenged analysis by Citizens for Tax Justice.