Transfer them to your retirement investment (IRA?) account from your
paycheck from the Before Taxes tab???

An alternate scheme is identified in http://www.bollar.org/msmoney/#Q14.

"Raymond" <rislas[at]comcast.net> wrote in message
news:1649c01c3860f$bdf35c60$a601280a[at]phx.gbl...
- quote -

How to set up 403b so that transfers from salary split
transaction are recognized by tax module and reduce my
salary and tax liability accordingly? Tax line manager
will not allow me to add these transfers to the IRA line.