Common EIN mistakes to avoid
Avoid EIN application delays: confirm the entity is formed, use the responsible party’s details, and choose an IRS application method you are eligible to use.
Last updated: October 9, 2026
Direct answer
Common EIN errors include applying before forming a legal entity, entering a name that does not match its records, using the wrong responsible party, applying through a paid lookalike site, or assuming every business qualifies for the online tool. The EIN application from the IRS is free.
Simple explanation
An EIN application is straightforward, but small errors create real friction: rejected applications, IRS letters that take weeks to resolve, or worse. Paying a service for something the IRS provides for free. Knowing the common pitfalls in advance saves time and money.
Mistakes to avoid
- 1
Paying a third-party site for the EIN itself
The IRS EIN application is free. A third party may charge for optional help, but it is not the IRS.
- 2
Applying before state formation
If you are creating an LLC, partnership, corporation, or tax-exempt entity, form it with the state first and then use the legal name on those documents.
- 3
Using the wrong responsible party
Use the person who owns or controls the entity as the IRS instructions require. A nominee or service provider generally should not be listed as the responsible party.
- 4
Assuming the online tool is open to every applicant
The online assistant requires a domestic organization, U.S. principal place of business, and an eligible responsible party with an SSN or ITIN. Other IRS application routes may be available.
- 5
Applying more than once in a day or losing the confirmation
The limit is one EIN per responsible party per day. Save the confirmation letter and verify the EIN before submitting another application.
Key takeaways
- Apply directly through the IRS; the EIN itself is free.
- Form legal entities before requesting an EIN.
- Use the correct responsible party and legal name.
- Check online-tool eligibility and the one-EIN-per-day limit.
- Save the IRS confirmation letter securely.
Related guides
Official sources
- IRS: Get an EIN (free official application)
Eligibility for the online tool, application routes, free IRS application, and one-EIN-per-responsible-party daily limit.
- IRS: Employer identification numbers
When an EIN is required, how to apply, and what to do before applying.
- IRS: Single-member LLCs
Federal tax treatment and the EIN exception for a disregarded single-member LLC without employees or excise-tax liability.
Educational information only; not individualized legal, tax, accounting, or financial advice. Rules can change and results depend on your facts. Check current official guidance or consult a qualified professional.