Final answer:
To calculate the net pay, Social Security (6.2%), Medicare (1.45%), and assumed federal income tax (FIT) at 15% are deducted from the gross pay of $900, resulting in a net pay of $696.15.
Step-by-step explanation:
To calculate the net pay, we will need to deduct the appropriate taxes and contributions from the gross pay of $900. Consider that the balance before this payroll is $90 below the Social Security maximum of $142,800, making the contribution for Social Security tax this week still applicable.
First, let's calculate the Social Security and Medicare contributions:
- Social Security: 6.2% of $900 = $55.80
- Medicare: 1.45% of $900 = $13.05
Next, the federal income tax (FIT) is assumed to be 15%, although this rate can vary based on actual income tax brackets and the individual's specific situation:
- Federal Income Tax (FIT): 15% of $900 = $135.00
Therefore, the net pay would be the gross pay minus all deductions:
- Net Pay = Gross Pay - Social Security - Medicare - FIT
- Net Pay = $900 - $55.80 - $13.05 - $135.00
- Net Pay = $696.15
So, the net pay after deducting Social Security, Medicare, and federal income tax is $696.15.