The Fast Track Disaster Relief Act would allow the Internal Revenue Service to share tax return information with the Small Business Administration to help process disaster loan applications more quickly. Under current law, the IRS has strict limits on sharing taxpayer information, but this bill would create an exception that permits the SBA to request and receive tax data from applicants seeking disaster loans under the Small Business Act. The shared information could only be used to determine whether applicants qualify for these disaster relief loans and cannot be used for any other purpose. The bill would take effect immediately upon enactment, with no specific funding allocated since it primarily streamlines an existing process rather than creating new programs. This change would mainly affect small business owners and self-employed individuals applying for federal disaster assistance loans.