1. Every such express company, on or before the first day of April in each year, shall file with the director of revenue a statement, verified by the oath of the officer or agent making the report, showing the entire receipts for business done in this state by the company during the year ending on the preceding December thirty-first, including its proportion of gross receipts for business done by such company in connection with other companies. The statement shall include as receipts all such sums earned or charged for business done within this state during the taxable year whether actually received or not; and shall contain an abstract of the amount received in each county and the total amount received for all the counties.

2. If the company fails or refuses to make such report on or before the first day of April, then between the first day of April and the first day of May, each local agent of the company shall file with the director of revenue a similar statement of the gross receipts of his agency for the taxable period.

3. At the time of making the statement, the express company shall pay to the director of revenue the sum of two and one-half dollars on each one hundred dollars of such receipts.

4. Nothing herein contained shall release such express companies from the assessment and taxation of their tangible property in the manner that other tangible property is assessed and taxed.

5. If any company fails or refuses for more than thirty days after May the first in each year to render an accurate account of its receipts as herein required, and to pay the required tax, it shall forfeit one hundred dollars for each additional day such statement and payment is delayed which shall be recovered in any court of competent jurisdiction by an action brought by the attorney general at the relation of the director of revenue, and in addition such company shall be prohibited from carrying on its business in this state until such payment is made.