If what you are asking is how do you specify that the tax-exempt
interest reported in box 8 of Form 1099-INT is from Washington state, then
follow the steps below:
On the top row of the
TurboTax online screen, click on Search (or for CD/downloaded TurboTax
locate the search box in the upper right corner)
This opens a box where you
can type in “interest income” (be sure to enter exactly as shown here)
and click the magnifying glass (or for CD/downloaded TurboTax, click Find)
The search results will
give you an option to “Jump to interest income”
Click on the blue “Jump
to interest income” link and enter your information
Check the My form has info in more than just Box 1
(this is uncommon) box to enter your information reported in box 8
Click Continue and move
forward until you see a screen asking Which
state is your exempt interest from?
Use the drop down box to select
Washington, then click Continue
(Please add more
clarification if this is not what you were asking.)