California non resident tax question
My son is my dependent and was a student in California in 2020 and earned money while he was there. Due to Covid, he was only in California for 60 days and is a non resident. He is filing taxes in Maryland, our home state and he got a distribution from a 529 plan. For the California tax forms, it is saying that they are going to tax his unearned income from the 529 at his parents' rate and wants information from a California tax return for the parents. We have not earned money in California and are not residents and so will not file in California. In addition, my son is already paying taxes on that unearned income in Maryland. How do we solve this problem of needing parent information for California? Will my son be taxed twice on his 529 earnings?