SD Quest will not be available after July 23, 2013.
SD Quest Users: You may continue to use SD Quest to file your returns until July 23, 2013 (the June return due July 23).
To continue to file and pay electronically you must create an EPath account. You may create your EPath account at any time. Use your SD Quest PIN and ID to create your EPath account in a matter of minutes. You will receive an email with a new password. You may immediately log into EPath to view your account and file and pay your taxes.
New Users: You may create an EPath account at any time. Please allow 3-5 days for a password to be mailed to you.
EPath Information Create EPath Account