(a) The department, each agent of the department, and each tax assessor-collector shall collect the taxes imposed by this chapter. The department, agent of the department, or tax assessor-collector of the county in which an application for a Texas certificate of number or certificate of title for a taxable boat or motor is made shall collect the taxes imposed by this chapter on that boat or motor.
(b) Except as provided by Subsection (d), the department, agent of the department, or the tax assessor-collector may not accept an application for a Texas certificate of number or certificate of title for a taxable boat or motor from a person unless the tax, if any, is paid.

(c) The tax imposed by § 160.021 is due on the 45th working day after the date that the taxable boat or motor is delivered to the purchaser. The purchaser or the seller, if the purchaser paid the tax to the seller, shall pay the tax to the department, to an agent of the department, or to a tax assessor-collector on or before the due date.
(d) If a purchaser pays the tax imposed by § 160.021 to the seller, and the seller fails to remit the tax in the time and manner required by Subsection (c), the department, agent of the department, or county tax assessor-collector shall accept an application for a Texas certificate of number or certificate of title for a taxable boat or motor from the purchaser if the purchaser provides proof that the tax was paid to the seller. The comptroller shall adopt rules establishing the method of proof required.
(e) The tax imposed by § 160.022 or 160.023 is due on the 45th working day after the date that the taxable boat or motor is brought into this state. The person liable for the tax shall pay the tax to the department or to a tax assessor-collector on or before the due date.