To prepare a MFS NJ-1040NR for your client:

1. Go to State & Local > Part-Yr./Nonres. Information > NJ Part-Year/Nonres Info
2. Under the New Jersey Residence Information section, complete the following -
   1. Part-year resident from;
   2. Part-year resident to; and
   3. Check the box for Print nonresident return
3. Scroll down to the MFJ Nonresidents section and enter the following -
   1. NJ source income: 1=taxpayer only, 2=spouse only: 2
      
   2. 1=force MFS, 2=force MFJ [Override]: 1
      

When you're done, check that all income and expenses are coded correctly for both T/S/J and state sourcing.  Review the allocation and correct/adjust as necessary.