Retirement tax questions

Thank you very much.

I was asking because she is actually receiving a sick day payout ($7575) and a vacation payout ($16000).

She wanted all $23575 to go to her 403b.

The payroll person told her that the sick payout would have no deductions except for state,  and the vacation payout would have S.S., Medicare and state.  I thought that was strange because my mother is collecting S.S. and paying premiums to Medicare.

I just want my mom to have the correct deductions to come out.