Get a Federal EIN for your South Dakota business.
An Employer Identification Number is your business's federal tax ID. South Dakota entities need one to open a business bank account, hire employees, file federal taxes, and apply for most business credit. The IRS issues it free. File.Business handles the application end-to-end.
Get an EIN with File.Business →When you need an EIN in South Dakota
- Opening a business bank account. Every major bank requires an EIN for South Dakota entities.
- Hiring employees or running payroll.
- Filing federal taxes (1065, 1120, 1120-S, 941, 940).
- Establishing business credit separate from personal credit.
- Applying for SBA or commercial loans.
- Registering for South Dakota sales tax or payroll tax accounts.
Up a level, or across to the neighbors.
Federal EIN by state
The national explainer above this page: what changes between jurisdictions, and why.
Open the hub → SectionSecretary of State directory
Every filing the state business office takes, state by state.
Open the section → StateSouth Dakota business filings
Every filing a business makes in South Dakota, gathered on one page.
Open South Dakota → In South DakotaEntity conversion in South Dakota
Entity conversion, state by state
Read the guide → In South DakotaSecretary of State reinstatement in South Dakota
Reinstatement, state by state
Read the guide → In South DakotaArticles of Amendment in South Dakota
Articles of amendment, state by state
Read the guide →