I've been able to simply change the taxable amount to 0 on a worksheet. The catch is that the IRS wants you to fill out Form 8833 if you use a treaty based position and TurboTax Deluxe doesn't include that form, so it seems as if you need to file by mail rather than electronically if you use the exemption from taxation on Social Security. Do any of the TurboTax versions include Form 8833?
