California labor laws apply to most every worker working in California regardless of where your employer is located. Definitely have to file both returns.The bad news is you probably are not eligible for the other state tax credit many of the commenters have suggested. 2023 ushers in a raft of new employmentrelated laws across the country and especially in New York and California. The mission of the California Labor Commissioner's Office is to ensure a just day's pay in every workplace in the State and to promote economic justice. This California employment law overview reviews requirements employers should know if they have employees working in the state. Keep up with changing local, state and federal employment law legislation. Nonresidents of NY only pay taxes to New York on New York-sourced income. New York recently enacted several new employment laws impacting employers in the Empire State. Employment laws in California can be a moving target.