Last week, the IRS said that if solar developers invest 5 percent of the total cost of the project by the end of 2019 and finish it by 2023, they can get a 30 percent tax credit.

The extension of the filing deadline follows a computer system outage Tuesday morning.

The district earned the debt after collecting federal taxes from employees but failing to pay the government.

Returns should be in the mail by April 18. People get a few extra days this year because Friday, April 15 is Emancipation Day, a public holiday in Washington D.C., followed by the weekend.