1. Increase in standard deduction (sec. 1002 of the House bill, sec. 11021 of the Senate amendment, and sec. 63 of the Code)
Present Law
Under present law, an individual who does not elect to itemize deductions may reduce his or her adjusted gross income (“AGI”) by the amount of the applicable standard deduction in arriving at his or her taxable income. The standard deduction is the sum of the basic standard deduction and, if applicable, the additional standard deduction. The basic standard deduction varies depending upon a taxpayer’s filing status. For 2017, the amount of the basic standard deduction is $6,350 for single individuals and married individuals filing separate returns, $9,350 for heads of households, and $12,700 for married individuals filing a joint return and surviving spouses. An additional standard deduction is allowed with respect to any individual who is elderly or blind.13 The amount of the standard deduction is indexed annually for inflation.
In the case of a dependent for whom a deduction for a personal exemption is allowed to another taxpayer, the standard deduction may not exceed the greater of (i) $1,050 (in 2017) or (ii) the sum of $350 (in 2017) plus the individual’s earned income.
House Bill
The House bill increases the standard deduction for individuals across all filing statuses. Under the provision, the amount of the standard deduction is $24,400 for married individuals filing a joint return, $18,300 for head-of-household filers, and $12,200 for all other taxpayers. The amount of the standard deduction is indexed for inflation using the C-CPI-U for taxable years beginning after December 31, 2019.14
The provision eliminates the additional standard deduction for the aged and the blind.
Effective date.−The provision is effective for taxable years beginning after December 31, 2017.
Senate Amendment
The Senate amendment temporarily increases the basic standard deduction for individuals across all filing statuses. Under the provision, the amount of the standard deduction is temporarily increased to $24,000 for married individuals filing a joint return, $18,000 for head- of-household filers, and $12,000 for all other individuals. The amount of the standard deduction is indexed for inflation using the C-CPI-U for taxable years beginning after December 31, 2018.
The additional standard deduction for the elderly and the blind is not changed by the provision.
The increase of the basic standard deduction does not apply to taxable years beginning after December 31, 2025.15
Effective date.−The provision is effective for taxable years beginning after December 31, 2017.
Conference Agreement
The conference agreement follows the Senate amendment.