As a 501(c)3 nonprofit organization, SLA annually submits IRS Form 990, which describes the association’s finances and activities for the previous year. You can find a copy of the most recently filed Form 990 here. You can also examine earlier 990 submissions from Websites such as the Foundation Center.
In addition, the SLA treasurer reports on the association’s finances each year at the annual business meeting. These presentations are available afterward to SLA members (requires member login). Please note that the text comments for some presentations have accompanying slides that are available from a link on the same page. Here are links to the most recent reports by the SLA treasurer: