Hi,

I lived in NJ Worked in NY for 3 months(Jan, Feb, March) later moved to CA.

Here are my questions related to tax filing :

1) Do i need to file NJ or NY tax returns or Both? ( Here i know that i need to file CA state tax returns as I am current residant of CA)

2) My Wife don't have ITIN yet. What should i write for spouse ITIN if i want to extend my NY tax return filing date(if I need to file NY tax)?

Thanks

I forgot to mention, I have an income of $12.95 (interest for my apartment security deposit for 3 months Jan, Feb and March) in NJ state

You will file NY return as nonresident and report 3 months income.
You will file NJ return as part year resident and report 3 months income. Then claim credit for taxes paid to NY.
You will file CA return and report income earned while in CA.
Read: Your U.S. Tax Return: Working or Living in Two or More states (http://taxipay.blogspot.com/2008/06/working-in-two-or-more-states.html)

Thanks Mukata for your response.

I want to apply extension for filing tax returns

Do i need to apply for extension of NJ , NY and CA tax returns filing too?

Thanks

All three states accept the federal extension as applying to their state tax return.