Delaware Code Title 30. State Taxes § 5504. Payment of tax

(a) In the case of the distribution of public utilities as described in § 5502(a) and (b)(1), (2) or (4) of this title, the taxes collected under this chapter during any calendar month shall be paid by the distributor to the Department of Finance within 20 days after the end of said calendar month.

(b) A distributor may, with the approval of the Department of Finance, compute its remittances either upon its billings or upon its cash receipts;  provided, that if the distributor is permitted to remit on the basis of its billings, the distributor shall be entitled to a credit against subsequent remittances for any taxes billed but not collected.  The Secretary of Finance shall prescribe such rules, regulations and forms for the administration of the tax imposed by this chapter as the Secretary deems necessary and as are consistent with the laws of Delaware.

(c) In the case of deliveries of gas or electricity as described in § 5502(b)(3) of this title the taxes due under this chapter shall be paid within 20 days after the end of the calendar month in which the user first receives a statement from the seller of the utility setting forth the amount charged for such gas or electricity.