Each vendor shall on or before the twentieth day of each month, whether or not lodging
has been furnished, make and file a return for the preceding month, on forms prescribed
by the auditor, showing the receipts from lodging furnished, the amount of tax due
from the vendor to the city for the period covered by the return and such other information
as the auditor deems necessary for the proper administration of the excise tax. Regardless
of whether a short-term rental has been rented, such vendor or short-term rental host
shall comply with the requirements of this section. The return shall be signed by
the vendor or an authorized agent thereof. Returns shall be filed by mailing, or,
if available, via electronic submission as provided for by the division of income
tax, same to the division of income tax: excise taxes, together with payment to the
city treasurer in the amount of tax shown to be due thereon. Any vendor who fails
to timely file and pay a return under this chapter shall forfeit and pay to the city
treasurer a penalty of ten (10) percent of the tax owed. The auditor may extend the
time for making and filing returns. Additionally, the auditor, if it is deemed necessary
in order to ensure the payment of the tax imposed by this chapter, may require returns
and payment to be made for other than monthly periods. The auditor may authorize vendors
whose tax liability is not such as to merit monthly returns, as determined by the
auditor upon the basis of administrative costs to the city, to make and file returns
at less frequent intervals. Such authorization shall be in writing and shall indicate
the intervals at which returns are to be filed. All returns shall bear the mark of
the date received and shall also reflect the amount of payment received therewith.