Yes. The tax forms that you're looking for (Portland / Multnomah County
Oregon Business Tax, Tri-Met) are available as part of the TurboTax 2016
Oregon module, along with the Lane County LTD
form, and the Portland Arts Tax form.
However, in order to
complete any of these, the TurboTax user first has to "activate" them by
going through the Oregon module interview. In fact, there's a special
place titled "Other Forms -> Additional Forms" where you need to check, or select, a box in order to add the specific Oregon local tax form(s) you want.
This
process is explained (and some screen-capture images provided) in an
answer recently given to another self-employed taxpayer, also operating
in the Portland, Oregon area. I believe that the information found
there, in that AnswerXchange post, will tell you what you need to know
in order to get started with your PDX / Mult. County Form SP and Tri-met TM form.
Here is the clickable link to the relevant post:
https://ttlc.intuit.com/questions/3730643-trimet-and-city-of-portland-tax
Thank you for asking this important question.
