(a) After an injury, an employer may:
(1) initiate benefit payments, including medical benefits; or
(2) on the written request or agreement of the employee, supplement income benefits paid by the insurance carrier by an amount that does not exceed the amount computed by subtracting the amount of the income benefit payments from the employee’s net preinjury wages.
(b) If an injury is found to be compensable and an insurance carrier initiates compensation, the insurance carrier shall reimburse the employer for the amount of benefits paid by the employer to which the employee was entitled under this subtitle. Payments that are not reimbursed or reimbursable under this section may be reimbursed under § 408.127.

(c) The employer shall notify the division and the insurance carrier on forms prescribed by the commissioner of the initiation of and amount of payments made under this section.
(d) Employer payments made under this section:
(1) may not be construed as an admission of compensability; and
(2) do not affect the payment of benefits from another source.
(e) If an employer does not notify the insurance carrier of the injury in compliance with § 409.005, the employer waives the right to reimbursement under this section.
(f) Salary continuation payments made by an employer for an employee’s disability resulting from a compensable injury shall be considered payment of income benefits for the purpose of determining the accrual date of any subsequent income benefits under this subtitle.
(g) If an employer is subject to a contractual obligation with an employee or group of employees, such as a collective bargaining agreement or a written agreement or policy, under which the employer is required to make salary continuation payments, the employer is not eligible for reimbursement under this section for those payments.
(h) Payments made as salary continuation or salary supplementation do not affect the exclusive remedy provisions of § 408.001.