The new IRS 990 Form and the Sarbanes-Oxley Act both address the question of document retention for nonprofits. Adopting and enforcing a written document retention policy is a best practice your organization may want to adopt.
Please note that in addition to the legal disclaimer above, this article contains information that is based, in whole or in part, on the laws of the District of Columbia. As a result, the information may not be appropriate for organizations operating outside the District of Columbia.
Article: Document Retention Policies