Disabled Veterans Tax Fairness Act of 2006 - Amends the Internal Revenue Code to allow members of the uniformed services whose retired pay in any taxable year is reduced due to an award of disability compensation by the Department of Veterans Affairs an extension of the three-year limitation period for filing tax refund claims until one year after the date of a disability determination. Limits the period for which such refund claims may be filed to taxable years beginning less than 15 years before the date of a disability determination.