Do you physically work in New Jersey, and commute from Florida, or do you mean that you work remotely (telecommuting) in Florida for a company that is located in New Jersey?
Are you an employee who gets a W-2?
How did you pay $3,014 in New Jersey tax? Do you mean that $3,014 was withheld from your pay and is shown in box 17 of your W-2?
Did you fill out a New Jersey resident tax return, Form NJ-1040, or a New Jersey nonresident tax return, Form NJ-1040NR?
