The Senate Finance Committee's tax bill provides for 15% and 27% tax brackets. The 27% bracket would apply to a joint return if a couple' taxable income exceeds $29,300. This plan and the tax plan approved by the House of Representatives has one glaring inequity that I have not heard discussed.
Taxpayers with a taxable income at the borderline between the two brackets (three brackets with the measure passed by the House) will need an extraordinary raise in salary (or other income) to maintain the spendable income available in the lower bracket.
For example a couple filing a joint return with a taxable income of $28,500 would be taxed at the rate of 15%. Their income tax would be $4,275, thereby leaving them with $24,225 in spendable after-tax dollars.
Now assume the couple receives a 5% salary increase ($1,425 a year), which raises their taxable income to $29,925 and puts the couple in the 27% tax bracket. The couple would now pay $8,079 in taxes, which would leave them $21,849 in after-tax dollars.