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Apply for EIN Number Online: Fast 2025 Guide | TaxIDFast
Apply for EIN Number (2025)

Apply for EIN Number Online — Fast & Accurate

Apply for an EIN number online and receive it instantly (when approved) during IRS hours. Prefer a done-for-you process? Start below and TaxIDFast will file everything on your behalf.

Apply for EIN Number Now See How It Works
Secure website • No hidden fees • U.S. businesses & nonprofits
15–20 minTypical intake time
Same-daySubmission during IRS hours*
Accuracy-firstEvery required field covered

*IRS online EIN system: Monday–Friday, 7 a.m.–10 p.m. Eastern.

What You’ll Need

  • Legal name & mailing address
  • Entity type (LLC, Corporation, Sole Prop, Nonprofit, Trust, Estate, etc.)
  • Responsible party’s legal name & SSN/ITIN
  • Reason for applying
  • Start date & principal activity
Begin — It’s Fast
Table of contents
Last Updated: September 28, 2025

Short answer: You can apply for an EIN number online and (if approved) receive it instantly during IRS hours. To avoid errors or delays, TaxIDFast offers a guided, complete filing service.

What is an EIN?

An Employer Identification Number (EIN) is a federal tax ID used for banking, taxes, payroll, and licenses. It uniquely identifies your business with the IRS.

How to Apply for an EIN Number (Step-by-Step)

Choose your entity type (LLC, Corp, Sole Prop, etc.).
List your responsible party with SSN/ITIN.
Enter key details (legal name, address, start date, reason).
Submit application online during IRS hours.
Receive EIN instantly when approved.
Save your confirmation letter for banking and compliance.
Apply Now

Who Needs an EIN?

  • Employers with staff
  • LLCs, Corporations, Partnerships
  • Nonprofits, Estates, Trusts
  • Anyone opening a business bank account
Tip: File your entity with the state first, then apply for an EIN.

Requirements & Responsible Party

Your EIN application must include a responsible party — an individual with control over the entity’s assets, listed with an SSN or ITIN. Only one EIN per party per day.

IRS Hours & Ways to Apply

  • Online: Mon–Fri, 7 a.m.–10 p.m. ET (instant issuance)
  • Fax: Form SS-4 (~4 business days)
  • Mail: Cincinnati, OH (~4 weeks)
  • International: Call 267-941-1099

Want it done-for-you?

TaxIDFast prepares and files EIN requests quickly and correctly.

Start Application

Common Mistakes

  • Applying before forming your LLC/corp
  • Incorrect responsible party details
  • Submitting outside IRS online hours
  • Multiple duplicate submissions

Scenarios

LLC

Owner/member with control is responsible party.

Sole Prop

List yourself with SSN/ITIN; can use DBA name.

Nonprofit

Form entity first, then apply.

Next step: Bring EIN letter + formation docs to bank.

After You Apply

  • Update IRS via Form 8822-B if responsible party/address changes
  • Check FinCEN reporting requirements
  • Set up payroll if hiring
  • Save EIN letter securely

About the Author

Richard Lang headshot

Richard Lang, MBA — Finance Manager & EIN Specialist

MBA, Western International University BS, Business Management Owner, Lang Bookkeeping LLC Former Phoenix Police Officer

Helping small businesses and nonprofits file EIN applications accurately and avoid IRS delays.

FAQ

How long does it take?

Online: instant if approved. Fax: ~4 days. Mail: ~4 weeks.

Is there a fee?

The IRS issues EINs free. TaxIDFast charges for preparation & filing.

Do I need an SSN/ITIN?

Yes, unless applying as an international by phone/mail.

Helpful Links