Many of us accountants have clients worldwide.

According to the FTB website, “as a part-year resident, you pay tax on:- All worldwide income received while a California resident- Income from California sources while you were a nonresidentMy understanding is the Oregon rental income or loss that is applicable to the time I am a CA resident should be includable on the CA tax return.

Many of us accountants have clients worldwide.

You are taxed on your worldwide income.

There are members worldwide on this site and always willing to give their opinions! 

HSBC can help you get checking accounts setup in almost any country.We are taxed on our world wide income in the US, but that’s not that big of deal, as we have treaties with other counties to help avoid double tax, and you can always setup up IBC in Cook Island, or St Kitts & Nevis, thus off shoring the income earned outside of the US, if you bring it home you will have to pay taxes on it.

CA taxes residents on worldwide income but may provide a credit for taxes paid to other states.

The thing about 'engineer job' is it's a worldwide phenomenan not just happening in US.

@Ed MoranAs mentioned above many CPAs have clients worldwide and can practice globally.

However, they are payable in the US (or your country of residence if you're not a US citizen or resident) as well at the US tax rate since US citizens and residents are taxed by the IRS on their worldwide income.