DTF Tax-Free Income 2028 Term Fund Inc. is a closed-ended fixed income mutual fund launched by Virtus Investment Partners, Inc. and managed by Duff & Phelps Investment Management Co. It invests primarily in a diversified portfolio of investment grade tax-exempt utility obligations across sectors such as water and sewer, electric utilities, prerefunded utilities, pollution control, and nonutilities, in the United States fixed income markets. The fund was formerly known as DTF Tax-Free Income Inc. It was formed in November 1991 and is domiciled in the United States.