https://ttlc.intuit.com/questions/2824532-i-need-to-amend-my-state-return
https://ttlc.intuit.com/questions/3827521-can-i-efile-an-amended-state-return
https://www.irs.gov/filing/individuals/amended-returns-form-1040-x/amended-return-frequently-asked-q...
