How to allocate income on NY/NJ part-time resident?

My work situation

  • I work in NYC;
  • Lived in NYC from 1/1/23 until 8/25/2023;
  • Moved to NJ on 8/25/2023.

W-2 Info
I received two W2s, one titled "NY State Reference", the other titled "Employee Reference". On the NY State one, I only see NY related numbers. On the Employee one, I see "TOTAL STATE" in a quadrant and "NJ" in another one:

 

NY State Reference W2

Employee Reference W2

Box 1 (wages)

400,486

400,486

Box 2 (fed withheld)

93,468

93,468

Box 16 (state wages)

400,486

113,854 (Only in NJ quadrant)

Box 17 (state tax)

33,006

 

Box 18 (local wages)

288,509

113,854

Box 19 (local tax)

19,928

 

 

Here is how I used those numbers for NY Return:

Screenshot 2024-02-27 at 8.11.29 PM.png

400,486 taken from W-2 box 1

 


Screenshot 2024-02-27 at 8.17.38 PM.png

308,128 taken from last pay-slip before my move, "YTD Gross". 

Do I need to remove the "before tax deductions" to this number? 

Should have I taken NY W2 Box 18 instead?

 

 

Screenshot 2024-02-27 at 8.21.18 PM.png

400,486 - 308,128 = 92,358. 

Or should have I put box 16 NJ State Wages in there? 

 

 

Screenshot 2024-02-27 at 8.23.52 PM.png

Using W-2 Box 18 (local wages) to determine the number.

Shouldn't this be the same number as first screenshot given I've spent same time in NYS and NYC? 

 

 

Screenshot 2024-02-27 at 8.30.12 PM.png

A new screen repeating some numbers, which I guess should match the above? 

 

Here is how I used those numbers for NY Return:

Screenshot 2024-02-27 at 8.32.50 PM.png

400,486 - 308,128 = 92,358. 

Or should have I put box 16 NJ State Wages in there? 

 

Results

This results in a $7,654 refund from NY and $33 refund from NJ.

Does it makes sense?

 

Thanks!