Double Taxation between NY and NJ

[Frankie C]

Joint filers here - my wife and I live in NJ but she worked remotely for a company based in NY in 2021, where she reported to the work office less than one day a week.

For tax year 2021, NY reprocessed our state refund and gave us significantly less money because we could not obtain proof of in-office days from her previous employer, essentially paying double tax to both NJ and NY. Any advice or is this a lost cause?

[MarilynG1]

Even though your wife is taxed on her New York-source income, you still report all your income to your Resident State of New Jersey.

NJ should give credit for tax paid to NY on her income, so that you are not double-taxed on this portion of your joint income.

Prepare your NY Non-Resident return first, then your NJ Resident return.

Here's detailed info and instructions for Is My Remote Income Taxable in New York?

@Frankie C