The Board of Trustees of BlackRock Municipal 2020 Term Trust announced the early declaration of regular monthly distributions of $0.044800 per unit for the months February, March and April 2016, payable on March 1, 2016, April 1, 2016 and April 29, 2016 respectively. The record dates are February 16, 2016, March 15, 2016 and April 15, 2016 respectively. The Ex-Date are February 11, 2016, March 11, 2016 and April 13, 2016 respectively.

The declaration of a special distribution of tax-exempt income of $0.002100 per unit payable in April 29, 2016 with the record date being April 15, 2016. Ex-Date is April 13, 2016.