If you are owed money from 2020, any taxes due after that will be applied to that balance, assuming that return is processed before you file the other returns. Since you haven't received the refund from 2020, it may be that it hasn't been processed for some reason or maybe the refund is lost in the system somehow. In that case, you would need to pay the tax due on the returns you are going to file. It may be best to file the returns and see if the balane due is applied to 2020, otherwise you will get a notice of tax due and you can pay it then. @pidgessn
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