Md. Code Ann., Tax-Gen. § 13-606 — § 13-606

(a) For reasonable cause, a tax collector may waive interest on unpaid tax.
(b) The Comptroller shall waive the amount of any interest assessed on unpaid income tax due under this article if:
(1) the unpaid income tax is due for a taxable year during which the person owing is incarcerated; and
(2) the person applies for and is placed on an installment payment plan under the Income Tax Reconciliation Program established under § 2–120 of this article.