EIN
The nine-digit number assigned by the IRS that the business uses for federal tax reporting and payroll deposits.
An EIN issued via the SS-4 is the federal identifier for tax withholding, banking, and payroll. Obtaining an EIN separates business and personal tax reporting, enables Form W-2 and Form 1099 filing, and is required before hiring employees or opening many commercial accounts.
The SS-4 is used across organizational types; several common profiles repeatedly complete it.
Choose the profile that best matches your situation to confirm which fields and supporting steps apply.
The nine-digit number assigned by the IRS that the business uses for federal tax reporting and payroll deposits.
The person who controls, manages, or directs the entity and who must be listed with their SSN or ITIN or foreign TIN.
Indicate whether the applicant is a sole proprietorship, partnership, corporation, S corporation, estate, or trust.
Specify why the EIN is requested (new business, hiring employees, banking, retirement plan, etc.).
Provide the principal business mailing address; use a physical address if a P.O. box is insufficient for state processes.
Enter the date business activities began; this can affect payroll tax schedules and state registration timing.
| Filing Method | IRS Online Application |
|---|---|
| Authentication | Email verification or account login |
| Reviewer Role | Designate a reviewer before final submission |
| Document Format | Use PDF/A or PDF for record preservation |
| Retention Policy | Store signed SS-4 for at least three years |
When completing the SS-4 online, confirm file formats, integration needs, and signer authentication to preserve legal validity and auditability.
Immediate EIN issuance when completed via the IRS online application
Generally processed in about four business days
Processing can take approximately four weeks
The IRS charges no fee to obtain an EIN
Obtain an EIN before hiring or opening payroll accounts
| Criteria | SS-4 | W-9 |
|---|---|---|
| Primary Purpose | obtain ein | provide tin to payer |
| Who Completes | applicant entity | payee individual or entity |
| Used For | banking, payroll | vendor payee reporting |
| Filing Party | requester applies | recipient supplies to payer |
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