EIN remains the same if you are moving your business entity from one state to another. You are only required to report to the IRS, unless you change the company structure from a corporation to a limited liability company or vice versa.The Internal Revenue Service issues a unique EIN for the new structure.
File a final return:
If you are converting from a corporation to a Limited Liability Company or choosing any other business structure along with the domestication from one state to another, you are responsible to file final returns of the existing state business.
