| http://www.w3.org/ns/prov#value | - As the May 15 deadline approaches for tax-exempt organizations to file the Form 990, 990-EZ and 990-PF, the Internal Revenue Service is warning them not to include Social Security numbers and other personally identifiable information in their tax forms.Filing a 990-series return is important for many groups and they are at risk of losing their tax exemption if they fail to file for three years in
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