30 DE Code § 581. (2021)
2021 Delaware Code|Title 30 - State Taxes|Chapter 5. Procedure, Administration and Enforcement|Subchapter VI. Miscellaneous|§ 581. Inspection of returns by federal, state and local officials.

§ 581. Inspection of returns by federal, state and local officials. (a) Notwithstanding the provisions of § 368 of this title, the Director may permit the Commissioner of Internal Revenue of the United States, the proper officer of any state, the District of Columbia, or any possession or territory of the United States imposing a tax upon the incomes of individuals or corporations, or a financial officer designated by any municipality of this State which imposes an income tax or wage tax, or the authorized representative of any of such officers, to inspect the tax return of any taxpayer, and the Director may furnish to any such officer, or such officer's authorized representative, an abstract of the tax return of any taxpayer or supply such officer or such officer's authorized representative with information contained in any return of such taxpayer or disclosed by the report of any examination or investigation of the income or return of such taxpayer, but only for the purpose of, and only to the extent necessary in, the administration of the tax laws of such other jurisdiction; provided, however, that no such permission shall be granted, and no such information shall be furnished, to any such officer or the officer's representative unless the statutes of such other jurisdiction grant substantially similar privileges to the Director or the Director's legal representative. No such municipality of this State, or its representative, shall be permitted to examine a taxpayer's return unless such taxpayer shall have a place of residence, business or employment in such municipality, and no municipality or its representative shall be permitted to review any portion of a tax return filed under the authority of this title or Title 4 unless the governing body of such municipality shall have adopted an ordinance requiring:  (1) That any information obtained from, or as a result of the examination or investigation of, such tax return be kept confidential and used only for collection purposes; (2) That the municipality reimburse to the Director the Division of Revenue's cost, if any, of acquiring such information. (b) Notwithstanding any other provision of this section or § 368 of this title, the Director is specifically authorized to enter into an agreement with the Department of Labor, the Office of the State Bank Commissioner, the Department of Natural Resources and Environmental Control, the Division of Motor Vehicles, the Division of Alcohol and Tobacco Enforcement, the Division of Medicaid and Medical Assistance, the Enhanced 911 Emergency Service Board, or the Alcoholic Beverage Control Commissioner to provide for the inspection of any tax return filed under this title (other than Chapters 30, 51, and 52) or under Title 4; provided, however, that such inspection shall be pursuant to the Department of Labor's duties under Title 19, the Office of the State Bank Commissioner's duties under Title 5, the Department of Natural Resources and Environmental Control's duties under Title 7, the Division of Motor Vehicles' duties under Title 21, the Division of Alcohol and Tobacco Enforcement's duties under Titles 4 and 11, the Division of Medicaid and Medical Assistance's duties under Title 16, the Enhanced 911 Emergency Service Board's duties under Title 16, or the Alcoholic Beverage Control Commissioner's duties under Title 4, and may be subject to such additional requirements as may be imposed by the Director. (c) The Director is authorized to provide the Division of Gaming Enforcement with copies of all books, papers, records and other documents related to or provided by “interactive fantasy sports registrants” as defined in § 4862 of Title 29, provided, however, that such information shall be provided to enable the Division of Gaming Enforcement to fulfill its duties under Chapter 48 of Title 29. (d) The Director is specifically authorized to enter into an agreement with a county to share tax return information filed under this title, other than Chapters 30, 51, and 52 of this title. However, the sharing of information is limited to information pertinent to the county's duties to administer realty transfer, mobile home, and lodging taxes imposed under Chapter 81 of Title 9. 68 Del. Laws, c. 187, §  3;  70 Del. Laws, c. 186, §  1;  71 Del. Laws, c. 314, §  1;  81 Del. Laws, c. 292, § 3;  81 Del. Laws, c. 371, § 4;  82 Del. Laws, c. 226, § 8;