2011 Individual Extension filing forms
IRS form 4686 for Individuals
http://www.irs.gov/pub/irs-pdf/f4868.pdf
Business Filings Corporation and Partnerships:
IRS Form 7004
http://www.irs.gov/pub/irs-pdf/f7004.pdf
Oregon Department Of Revenue:
http://www.oregon.gov/DOR/forms/personal/form_40-ext_extension_101-165_2011.pdf
Tri Met Extensions to file:
If you received a federal extension or an extension to file your federal or Oregon individual income tax return, it will also extend your TriMet Self-Employment Tax Return.
http://www.oregon.gov/DOR/forms/business/form-tm-instructions_555-001_2011.pdf
City of Portland and Multnomah County:
http://www.portlandonline.com/omf/index.cfm?c=29558&a=371797