2022 Tax amendment for CA and NY to fix to RSU allocation

Hi Forum,

I’d appreciate help confirming that I’m handling this correctly.

 

Background

  • I moved from CA to NY in December 2021 and stayed with the same employer.

  • For tax year 2022, I mistakenly reported all income as NY income and $0 CA income.

  • I now need to amend my NY return to get a refund and file/amend CA to pay tax on CA-sourced RSU income.

W-2 / income details

  • My W-2 appears to overstate CA wages, since I worked 100% in NY during 2022.

    • My January paycheck still showed CA state wages, likely because payroll hadn’t updated my location yet. I don’t think this can be corrected now.

    • RSU allocation matches my records, so no issue there.

    • I also see a December CA state taxable wage amount on a statement, and I’m not sure where it came from. The only possibility I can think of is my bonus, but that was paid earlier in the year.

  • My W-2 income consists only of salary, bonus, and RSUs, all from the same employer.

Questions

  1. For CA wages, should I use the CA amount shown in Box 16 of the W-2, or should I use my own allocation/calculation?
    I’m leaning toward using the W-2 amount even if it’s slightly overstated, because I’m concerned CA could challenge it later (CA has a 4-year statute of limitations).

  2. I expected NY to fully credit the CA tax I pay, but it looks like the NY credit is lower than the CA tax owed.
    My understanding is:

    • CA taxes me at a higher marginal rate (around 8% over $66k) than NY (5.85%).

    • CA determines the tax rate using total W-2 income, even though only a portion is CA-sourced.
      Is this understanding correct?

  3. I plan to amend NY first, receive the refund, and then amend/file CA. ChatGPT suggested this approach.
    Is there any risk in doing it in this order?

  4. For the NY amendment, I’m filing IT-201-X and IT-112-R (CA).
    Are these the only NY forms I need?

  5. Can I e-file my NY amended return, or does it have to be paper-filed?

Thank you very much. Sorry for the long questions. Want to make sure I am not missing anything.