After you file


@darla1 wrote:

I would love not to have to USPS/mail in my taxes.  However, the list you provide is for "International Taxpayers" as defined by the IRS, specifically "International Businesses" on the IRS site.  I do not think that it applies to U.S. individual taxpayers.  


The original question on this thread is referring the IRS Form 8833, Treaty-Based Return Position Disclosure Under Section 6114 or 7701(b).

TurboTax does not support Form 8833. 

IRS website for the Form 8833 - https://www.irs.gov/forms-pubs/about-form-8833

If you are required to complete the form then it must be attached to your tax return.  The tax return will have to be printed and mailed if you are using TurboTax.