The TRUMP Jobs Act is proposing a tax credit. 

A tax deduction reduces your taxable income, lowering the amount of income that is subject to tax. The actual tax savings depend on your tax bracket. For example, if you're in the 24% tax bracket, a $1,000 deduction saves you $240 in taxes.

A tax credit, on the other hand, is a dollar-for-dollar reduction in your actual tax liability. A $1,000 tax credit reduces your tax bill by $1,000, regardless of your tax bracket.

Example:

Tax Deduction: If you earn $50,000 and take a $5,000 deduction, your taxable income drops to $45,000. If you're in the 24% bracket, you save $1,200 in taxes.

Tax Credit: If you owe $5,000 in taxes and qualify for a $1,000 tax credit, your tax bill drops to $4,000.

Tax credits are more valuable than deductions because they directly reduce your tax bill rather than just lowering taxable income.