It is fact and circumstance- based. Below is from the Part-Year Residents and Nonresidents - NJ.gov. You would have a strong case that you changed domicile in November just in the way you worded your question, but the more tangible proof you have (driver's license, voter registration etc) always helps.
Domicile is the place and state you consider your permanent home — the place where you intend to return after a period of absence (e.g., vacation, business assignment, educational leave).
You have only one domicile, although you may have more than one place to live. Your domicile continues until you establish a new permanent home elsewhere.
The Division considers many factors when determining if New Jersey is your domicile, including:
• Your intent;
• Where you register to vote;
• Your driver’s license and vehicle registration;
• Where you have family ties;
• Whether your federal tax return lists New Jersey as a home address;
• Location of bank accounts;
• Whether you participated in a New Jersey property tax relief program.
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