abrdn National Municipal Income Fund is a closed-ended fixed income mutual fund launched and managed by abrdn Inc. It invests in the fixed income markets of the United States. The fund primarily invests in investment grade municipal obligations, the income from which is exempt from federal income taxes.

Its investments include airport revenue bonds, escrowed to maturity bonds, hospital revenue bonds, pre-refunded bonds, public power revenue bonds, school district general obligation bonds, and short term investments.