100% of Net for Pre Tax Deductions -Can they be set up and work?

unknown

We have two pretax voluntary retirement plans (403b & 457). Many staff wand to deferr their net check to their plan. If the employee has a miscellaneous deduction for cafe, gift shop or dues the calculation for the retirement does not work properly.
On PR05
I have the Arrears set to N-Net Zero- No Arrears
The tax status is set to 02 or 04, the priority on this dedution is 4 and for the cafe and dues the priority is 3, my thinking was that it would calcualte everything and then calculate the retirement, after reading a KB article it seems the pretax deducts will always process first due to the tax piece.

Has anyone set up something like this sucessfully? Do you have suggestions or notes I can try?

unknown

We have staffers who want to do the same thing - unfortunately, we haven't found a way to automate it with priorities. We audit any 100% enrollments, and then our P&B department manually calculates the actual percent the individual can use (80, 92, etc.) and still have the statutory deductions withheld. We then notify the individual. We haven't found any other way to get the net pay close to 100% for the deferral.