hourly wage for Puerto Rico is— (A) $10 for calendar years 2018 and 2019, and (B) for any calendar year beginning after 2019, the amount determined by the Bureau of Labor Statistics based on the most recent data available as of 30 days before the start of such calendar year. (3) Determination of hourly wage For purposes of paragraph (1)(B)— (A) In general The hourly wage of any employee shall be determined without regard to any qualified wage subsidy payment under this section. (B) Period Each hour at which an eligible Puerto Rico employee performs services for a different rate of pay shall be treated as a separate period. (C) Salaried employees In the case of a salaried employee, the hourly wage for such employee for any period shall be determined by dividing the annual rate of pay for such period by 2,080. (e) Payroll taxes For purposes of this section, the term payroll taxes means— (1) amounts required to be deducted for the payroll period under section 3102 (relating to FICA employee taxes), and (2) amounts of the taxes imposed for the payroll period under section 3111 (relating to FICA employer taxes). (f) Other definitions and special rules For purposes of this section— (1) Applicable period For purposes of this section, the term applicable period means— (A) except as provided in subparagraph (B), a calendar quarter, and (B) in the case of any employer which files returns for payroll taxes less frequently than quarterly, such period as determined by the Secretary under regulations. (2) Wage subsidy payments in excess of payroll tax liability To the extent that the amount treated as paid under subsection (a) exceeds the amount of such person's liability for payroll taxes, the Secretary shall credit and refund such excess in the same manner as if it were an overpayment of such taxes. (g) Advanced payments for certain participating employers (1) In general In the case of a participating employer which elects the application of this subsection, the Secretary shall pay to such participating employer, not later