Hurricane Sandy Tax Relief Act of 2013 - Amends the Internal Revenue Code to provide tax benefits for individuals and businesses affected by Hurricane Sandy, including:

• an exemption from the gross income limitation for deducting casualty losses attributable to Hurricane Sandy;
• expensing allowances for Hurricane Sandy disaster expenses, disaster assistance property, and environmental remediation expenses;
• treatment of losses attributable to Hurricane Sandy as net operating losses;
• suspension of mortgage revenue bond requirements for residences located in the Hurricane Sandy disaster area;
• an increased charitable tax deduction for Hurricane Sandy disaster relief contributions;
• a special allocation of the new markets tax credit for investments in community development entities serving the disaster area;
• special adjustments to the earned income tax credit and the child tax credit for individuals living in the disaster area;
• a work opportunity tax credit for hiring employees residing in the Hurricane Sandy disaster area;
• authorization for issuance of Hurricane Sandy bonds to finance disaster relief projects;
• an additional allocation of low-income housing credits in states affected by Hurricane Sandy; and
• an exemption from the 10% penalty for premature distributions from a retirement plan to individuals residing in the Hurricane Sandy disaster area.