What should I do if the employer State ID number is missing from Box 15 on my W-2?
Last updated: March 27, 2026
When preparing your personal tax return, you may notice that Box 15 on your W-2 (Employer’s State ID Number) is blank or missing. This information is sometimes required when filing your state tax return.
If the State ID is missing from Box 15 on your W-2, you may use Niural’s FEIN (Federal Employer Identification Number) in its place, if a State ID is required for your filing.
If you are unsure whether this is acceptable for your specific state filing, we recommend confirming with your tax advisor or the relevant state tax authority.