Yup, happened to me too (Arkansas). For context, I moved in January of the year. Sent me a letter saying that because I had filed my federal return with my Ar

Yup, happened to me too (Arkansas). For context, I moved in January of the year. Sent me a letter saying that because I had filed my federal return with my Arkansas address I clearly lived in the state, and because I hadn't filed a state return they were assessing taxes on me for the entire year at the single rate. I called and they said the same thing, I interrupted them and said "so should I tell California to fight you over this money, since I lived there until (XX/YY/ZZZZ)?" Oh and here's my AR lease, here's my CA lease, my CA tax return, me transferring my license to an AR drivers license, and me transferring my vehicle registration on (XX/YY/ZZZZ). Anything else I can help you get from the state, since you don't seem to have access, but do from the feds. I got the most sheepish "this case is resolved" letter from them <72 hours later.