Useful Links

Pennsylvania Department of Revenue

https://www.pa.gov/agencies/revenue



Internal Revenue Service

http://www.irs.gov/

Useful Documents

W-9 Forms for Sub-Contractors

http://www.irs.gov/pub/irs-pdf/fw9.pdf

W-4 Form to be filled out by your employees

http://www.irs.gov/pub/irs-pdf/fw4.pdf