To amend the Internal Revenue Code of 1986 to establish a temporary surtax to offset the current costs of the Iraq war.

Summary: Share the Sacrifice Act of 2007 - Amends the Internal Revenue Code to impose an Iraq War surtax on the net income tax liabilities of individuals, estates and trusts, and corporations. Exempts from such surtax: (1) members of the Armed Forces who have received combat pay after September 11, 2001; (2) survivors of military personnel who received a death gratuity; and (3) taxpayers with adjusted gross income not in excess of $30,000.

SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Share the Sacrifice Act of 2007''.

SEC. 2. ESTABLISHMENT OF TEMPORARY IRAQ WAR SURTAX.

    (a) In General.--Subchapter A of chapter 1 of the Internal Revenue 
Code of 1986 (relating to normal taxes and surtaxes) is amended by 
adding at the end the following new part:

                 ``PART VIII--TEMPORARY IRAQ WAR SURTAX

``Sec. 59B. Temporary Iraq war surtax.

``SEC. 59B. TEMPORARY IRAQ WAR SURTAX.

    ``(a) In General.--In the case of any taxable year beginning in 
2008--
            ``(1) Joint returns.--In the case of a joint return with 
        net income tax liability, the tax imposed under this chapter 
        shall be increased by the amount of the surtax determined in 
        accordance with the following table:

``If net income tax liability is:   The surtax is:
    Not over $10,600...............
                                        2.5% of net income tax 
                                                liability
    Over $10,600 but not over 
        $22,600.
                                        $265, plus 5% of the excess 
                                                over $10,600
    Over $22,600 but not over 
        $36,400.
                                        $865, plus 11% of the excess 
                                                over $22,600
    Over $36,400...................
                                        $2,383, plus 16% of the excess 
                                                over $36,400
            ``(2) Other individuals, trusts, and estates.--In the case 
        of any individual, trust, or estate with net income tax 
        liability (other than a joint return), the tax imposed under 
        this chapter shall be increased by the amount of the surtax 
        determined in accordance with the following table:

``If net income tax liability is:   The surtax is:
    Not over $5,300................
                                        2.5% of net income tax 
                                                liability
    Over $5,300 but not over 
        $11,300.
                                        $132.50, plus 5% of the excess 
                                                over $5,300
    Over $11,300 but not over 
        $18,200.
                                        $432.50, plus 11% of the excess 
                                                over $11,300
    Over $18,200...................
                                        $1,191.50, plus 16% of the 
                                                excess over $18,200
            ``(3) Corporations.--In the case of any corporation with 
        net income tax liability, the tax imposed under this chapter 
        shall be increased by an amount equal to such net income tax 
        liability multiplied by 16 percent.
    ``(b) Certain Exceptions for Individuals.--
            ``(1) Certain exceptions related to military service.--
                    ``(A) In general.--Subsection (a) shall not apply 
                to--
                            ``(i) any member of the Armed Forces of the 
                        United States who received compensation which 
                        was excludible from gross income under section 
                        112 (relating to certain combat zone 
                        compensation of members of the Armed Forces) 
                        during the taxable year involved or any taxable 
                        year ending on or after September 11, 2001, or
                            ``(ii) any individual who received a death 
                        gratuity payable under chapter 75 of title 10, 
                        United States Code, with respect to any 
                        decedent who--
                                    ``(I) is described in clause (i), 
                                and
                                    ``(II) died on or after September 
                                11, 2001, and before the close of the 
                                taxable year involved.
                    ``(B) Joint returns.--In the case of a joint 
                return, the taxpayer shall be treated as described in 
                clause (i) or (ii) of subparagraph (A) if either spouse 
                is so described.
            ``(2) Exception based on adjusted gross income.--Subsection 
        (a) shall not apply to any individual if the adjusted gross 
        income of the taxpayer is not in excess of $30,000.
    ``(c) Net Income Tax Liability Defined.--For purposes of this 
section, the term `net income tax liability' means the excess of--
            ``(1) the sum of the regular tax liability (as defined in 
        section 26(b)) and the tax imposed by section 55, over
            ``(2) the credits allowed under part IV (other than 
        sections 31, 33, and 34).
    ``(d) Not Treated as Tax Imposed by This Chapter for Certain 
Purposes.--The tax imposed under this part shall not be treated as tax 
imposed by this chapter for purposes of determining the amount of any 
credit under this chapter or for purposes of section 55.''.
    (b) Clerical Amendment.--The table of parts for subchapter A of 
chapter 1 of such Code is amended by adding at the end the following 
new item:

                ``Part VIII. Temporary Iraq War Surtax.

    (c) Effective Date.--The amendments made by this section shall 
apply to taxable years beginning after December 31, 2007.
    (d) Section 15 Not To Apply.--The amendment made by subsection (a) 
shall not be treated as a change in a rate of tax for purposes of 
section 15 of the Internal Revenue Code of 1986.