To amend the Internal Revenue Code of 1986 to provide a credit against tax for hurricane and tornado mitigation expenditures.

Hurricane and Tornado Mitigation Investment Act of 2007 - Amends the Internal Revenue Code to allow individual and business taxpayers in certain states a tax credit for 25% of their qualified hurricane and tornado mitigation property expenditures up to $5,000 for any taxable year. Defines such expenditures as expenditures in a dwelling unit to improve the strength of a roof deck attachment,...