I was told that if a resident alien with US income wants to leave the country, he has to file a Form 1040-C first, then file a dual-status return the next year. It's wrong to simply switch to Form 1040-NR.
Does it mean I'll get into trouble with IRS or be stopped by the custom when trying to leave US if I don't do Form 1040-C and dual-status return?
If so, how do I file Form 1040-C and dual-status return with TurboTax?
