SDCL § 49-1A-4: Annual report of gross receipts--Filing date--Verification--Annual rate setting and tax assessment.

On April first of each year, each company shall file with the Public Utilities Commission, on forms prescribed by the commission, the amount of its gross receipts derived from the company's customers within the State of South Dakota during the preceding calendar year. Such report shall be sworn to and verified by an officer of the company. On May first of each year the commission shall, by order, establish the rate and assess the tax authorized in § 49-1A-3 which, together with any funds remaining from the current fiscal year and the two hundred fifty dollar minimum gross receipt tax, will fund the commission's budget for the next fiscal year and provide a contingency reserve in an amount not to exceed the prior year's budget.