Tax Guide
During the period of time that an individual is considered a US-resident for tax purposes:
- All worldwide income is taxed by the IRS at the normal rates. (e.g. basically any source of income at all)
During the period of time that an individual is considered a US-non-resident for tax purposes:
All US-sourced income that is effectively connected with a trade or business in the US is taxed by the IRS at the normal rates. (e.g. consulting for an American company while in America)
All US-sourced income that is NOT effectively connected with a trade or business in the US is taxed by the IRS at 30% or treaty rates. (e.g. winning money at an American casino while in America)
All non-US-sourced income is not taxed at all by the IRS. (e.g. consulting for a Canadian company while in Canada)
Question
While browsing the Internet, I stumbled upon the aforementioned guide someone posted. Is this a correct way to think about the American tax system? Or are there any major glaring errors?