The following are the carryback and carryforward years generally. allowed for Illinois net losses in tax years ending before December 31, 1999. Illinois net losses in tax years beginning. â¢ after August 5, 1997, and ending before December 31, 1999, must. be carried back two years, then forward 20 years.
1 You may calculate biweekly gross by dividing annual salary by the number of days the salary is based on for the year and multiplying the result by 14 days. 2  For example, $52,000/365 days = $142.47 x 14 = $2,000. 3  Gross represents your entire salary before deductions.ivide biweekly gross by the number of days in the pay period to arrive at daily rate. For example, the biweekly gross is $2,000 and you work a standard 40-hour week; the daily rate is $200, the equivalent of $2,000/10 days.
Multiply the adjusted gross biweekly wages times 26 to obtain the gross annual wages. Multiply the biweekly Federal income tax withholding by 26 to obtain the annual Federal income tax withholding and subtract this amount from the gross annual wages computed in step 4.