I assume you’re asking about receiving a refund? This is my first year to file a DC return. I submitted mine electronically via Turbotax with my federal return (as I have for the past 10 years) and received a letter in the mail stating the DC Office of Tax and Revenue can’t verify my SSN and that I have to provide them with a letter verifying my SSN from the Social Security Administration. Which, of course, requires a physical visit to the SSA office that is only open during the week between 9-3:30. Interesting how the IRS has accepted my returns, including this year’s, without any problems, yet the DC tax office is requiring me to jump through hoops while they sit on my refund.