How do I find my 2018 Oregon tax liability amount without having my 2018 tax paperwork

You can access your prior year returns using the Documents tab in the navigation. 

• When you sign in, make sure you're using the same TurboTax account (with the same username) as in prior years.
• Select Documents from the navigation when it appears.
• Use the drop-down menu at the top of the screen to choose the tax year you want and then select Download PDF.

If you filed your 2018 taxes with TurboTax, and would like to receive a copy to complete this year's tax return, please click, How do I access a prior year return? https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/01/27010#M746

If you did not file your 2018 taxes with TurboTax, and would like to receive a copy of your state return, you will need to contact the Oregon Department of Revenue.