State tax filing

According to New York’s taxation website, any nonresident whose primary office is in the state but is telecommuting is still considered to be working in the state. Many states, including New Jersey, provide a tax credit to eliminate “double taxation” of a person’s income.

 

are you working for the same company while living in CA?

if so, CA will tax you as a resident only on income earned while domiciled there and you would be liable for NY taxes based on its telecommuting rules. 

the same is true for NJ. it will tax you as a resident only on income earned while domiciled there and you would be liable for NY taxes based on its telecommuting rules.