why: so the government won’t be able to use your money for whatever the fuck they’re planning for the next 4 years.
as a traveler, none of my money has been funding Israel, for example.
one-step method: you basically fill out one extra tax form called FEIE while you’re doing your taxes, write down the dates you were outside of the country, and then since you aren’t in the country and are not receiving any services from the US, you don’t have to pay income tax up to a certain amount (it’s a little over 125k this year).
Some states still require you to file even if you don’t live there, but have ties, and may tax your income.
Further, not doing so could impact things like voter registration depending upon the state. The whole system of US voting is a mess since it’s all at the state level.
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can you define ties? Because I don’t see how if I move from state A to state B that they will take income I earn while living in state B.
You own property in the state, or consider it your primary residence, you have income from business or investments in the state.
It really varies state by state.