Journalize Period Payroll The payroll register of Castilla Engineering Co. indicates $960 of social security withheld and $240 of Medicare tax withheld on total salaries of $16,000 for the period. Retirement savings withheld from employee paychecks were $1,120 for the period. Federal withholding for the period totaled $2,880. Provide the journal entry for the period's payroll. If an amount box does not require an entry, leave it blank