Ok thanks so much for the old thread.

I've read a bit more of the regs in detail after you mentioned that. 

So basically:

• CT will tax her telecommuting days as CT sourced income during her period as a resident there. 
• CT will not give credit for NY taxes on those days because it does not honor the same telecommuter rules as NY on it's R/PY taxpayers only NRs. 
• NY taxes all workdays as NY sourced based on the convenience rules. 

So ultimately she will have a CT liability on those telecommuting days.

In Lacerte - I will need to subtract all income related to NY workdays as an adjustment to the Federal AGI leaving in her CT telecommuting days.  

The NY return will have the whole income amount with no wage allocation to CT.

Any idea why the NY withholding will not be pulling through to the State return?