Did not claim dependent for 2020
I moved to USA from abroad and I didn’t claim my child as a dependent nor did I file taxes because I wasn’t working in the USA. I don’t believe my family members claimed her as a dependent either. Is it too late for them to claim her for that year that was missed out on. We were living abroad in 2019 however we were receiving support from family in the USA. Can they claim her retroactively for their taxes in 2020?