Internal Revenue Service http://www.irs.gov/

Pa Dept of Revenue http://www.revenue.state.pa.us/portal/server.pt/community/revenue_home/10648

Berkheimer Associates http://www.hab-inc.com/content/

Central Tax Bureau http://www.centaxgroup.com/

National Association of Enrolled Agents http://www.naea.org/taxpayers/what-enrolled-agent/

Quickbooks http://quickbooks.intuit.com/

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