The Oregon Department of Revenue offers information on state taxes and free federal tax filing preparation referrals during the federal tax season. Services are available statewide and there is no age restriction.
US Small Business Administration – Oregon District Office offers a wide range of information on starting, growing and maintaining a business including licenses, permits, loans, grants, cybersecurity, and finances, without any age restrictions and it is available statewide.
The US Postal Service collects, processes, and delivers mail, sells stamps, mailing material, and boxes. Their services are available to all, with no age restrictions, in Multnomah county and statewide.