What is the NY DOS ID number?
Every LLC and corporation registered in New York gets a DOS ID (Department of State ID) the day it's formed. It's the number the State uses to track your company across every filing — your Biennial Statement, certificates of status, amendments, and dissolution all reference it.
Most owners never wrote it down. That's why we built this free lookup: type your business name above and we search New York's official records instantly — you'll see your DOS ID, entity type, county, and the month your company was formed (which is also your Biennial Statement due month).
Where you'll need it
Banks ask for it when opening business accounts. The State requires it on the Biennial Statement. Licensing agencies, insurance carriers, and lenders use it to verify your company is in good standing. If your Biennial Statement is past due, that shows in the same public record — fix it before a bank or underwriter sees it.