Subchapter I. General Provisions. § 47–4401. Payment of tax. § 47–4402. Credit card or electronic payment of taxes. § 47–4403. Closing agreements. § 47–4404. Compromise of tax. § 47–4405. Collections through third party contractors. § 47–4406. Secrecy of returns. § 47–4407. Amnesty for tax periods ending prior to December 31, 2009.