Hello!
To enter information in TurboTax Free edition, here are the steps:
Report your full income in the appropriate section. Then enter the treaty exempt amount as negative amount (-5000) under Federal Taxes / Less Common Income / Miscellaneous Income 1099A, 1099C / Other Reportable Income
Fill in Form 8833 from the IRS website to claim an exception. https://www.irs.gov/pub/irs-pdf/f8833.pdf
Submit everything by mail to the designated IRS location as instructed on your Form 1040 print out.
