Obtain a Free Arizona EIN Number for Your LLC
(2025 Guide)
2025 LLC Guide
How to Get an Arizona EIN Number for Your LLC (Easy Guide)
Learn how to get an Arizona EIN number for your LLC, for free Step-by-step instructions simplify the process
Navigating the IRS can feel daunting, but obtaining an EIN for your LLC doesn’t have to be a frightening experience.
This page outlines what an EIN is and offers detailed, step-by-step guidance on obtaining a free EIN for an Arizona LLC.
What is an EIN Number?
EIN, or Employer Identification Number, is provided to your LLC by the Internal Revenue Service (IRS), which is a branch of the federal government.
The EIN serves to identify your business to the IRS, much like a Social Security Number identifies an individual. You might also consider the EIN as your “account number” with the IRS.
Note: An EIN is not provided by the Arizona Corporation Commission; it is solely issued by the IRS.
Looking to form an LLC? Let Northwest handle the process for just $39 plus the state fee (and remember to include EIN with your order).
Own an LLC but lacking an EIN? Trust Northwest to obtain your EIN: I possess an SSN | I do not possess an SSN
EIN Synonyms
Your EIN Number may be called by various names. Regardless of the terminology used, they all signify the same entity.
Alternative terms for an EIN are:
- EIN Number
- Employer Identification Number
- Federal Employer Identification Number (FEIN)
- Federal Tax ID Numbers
- Arizona Federal Tax ID Number
- Federal Tax Identification Number
Note: An EIN number differs from an Arizona Tax ID Number (also known as a State Tax ID Number). The IRS issues an EIN, whereas the Arizona Department of Revenue provides the Arizona Tax ID Number through the Arizona Joint Tax Application.
What is the purpose of an EIN?
An Employer Identification Number (EIN) serves as a unique identifier for your LLC, utilized by various government entities.
Obtaining an EIN for your Arizona Limited Liability Company allows you to handle tax obligations, but its benefits extend beyond that. You require an EIN to:
- Open an LLC business bank account
- File federal tax, Arizona state tax, and local tax returns
- File Arizona income tax
- Acquire lines of credit or loans for your business
- Obtain a business credit card for your LLC
- Apply for a business license or local permits
- Manage employee compensation (if necessary)
What is the price for obtaining an EIN?
Obtaining an EIN for businesses in Arizona comes at no cost. The IRS does not impose any service fees for the online application process for the EIN.
When is the right time to obtain an EIN?
Wait until your Arizona LLC receives approval before applying for an EIN.
Tip: If you submitted your EIN application prior to the approval of your LLC, or if you encountered any errors, check out our FAQs below. We provide solutions for the most frequent EIN issues.
How to Obtain an EIN for Your Arizona LLC
Important: Ensure you determine the total number of LLC Members prior to applying for an EIN. Transitioning from a Single-Member LLC to a Multi-Member LLC (or the other way around) necessitates submitting paperwork to both the IRS and your state. Furthermore, you’ll be required to transfer LLC ownership, revise your Operating Agreement, and inform your accountant (as your tax filing will be altered).
Note: An LLC does not represent Limited Liability Corporation. It signifies Limited Liability Company..
Apply for an EIN (US Citizens and US Residents)
We suggest that you apply for an EIN online if you possess a SSN (Social Security Number) or an ITIN (Individual Taxpayer Identification Number).
This is the simplest way to file, and it offers the quickest approval time. You will receive your EIN Number upon completing the online application, which typically takes around 15 minutes.
This page contains detailed, step-by-step guidance:
How to apply for an EIN online
Note: You can also request an EIN via mail or fax, but this method is significantly slower than online submission. We suggest using this option only if you receive an error message (known as an EIN reference number) and the IRS instructs you to do so.
Apply for an EIN (Non-US residents)
If you reside outside the US and lack an SSN or ITIN, obtaining an EIN for your Arizona LLC is still possible. However, you won’t be able to submit your application for a Federal tax EIN online.
Instead, you must send Form SS-4 to the IRS via mail or fax. The SS-4 serves as the application form. Detailed step-by-step guidance can be found on this page:
How to get an EIN without an SSN or ITIN
Note: If you’ve come across information suggesting that hiring a third-party designee is necessary, that is incorrect. You are able to secure your EIN independently without the need for a third-party representative.
EIN Approval (EIN Confirmation Letter)
After the IRS assigns an EIN to your Arizona LLC, you will obtain your formal approval, referred to as an EIN Confirmation Letter (CP 575).
The way you choose to apply for an EIN will dictate how you obtain your EIN Confirmation Letter. If you submit your application online, you can download the EIN Confirmation Letter immediately upon completion. However, if you send the SS-4 form via mail or fax, the IRS will send your EIN Confirmation Letter through traditional mail.
Here is an example of the EIN Confirmation Letter:
LLC Business Bank Account
Once you obtain an EIN, you can establish a business bank account for your Arizona LLC. The bank will require your EIN Confirmation Letter (or EIN Verification Letter) to facilitate the account opening process.
Kindly refer to the business bank account for LLC section for a compilation of suggested banks (along with the necessary documents to bring).
If you reside outside the US, you can still establish a US bank account for your LLC. For more details, please visit this page: Non-US resident opening US bank account for an LLC
Internal Revenue Service (IRS) Contact Details
If you have inquiries, feel free to contact the Internal Revenue Service (IRS) at 1-800-829-4933. Their business hours are from 7 am to 7 pm, Monday to Friday.
Utilize these choices to connect with a real individual:
- Press option 1 for English.
- Then press option 1 for Employer Identification Numbers.
- Then press option 3 for “If you already have an EIN, but you can’t remember it, etc.”
Note: Selecting option 3 is the sole method to connect with a live representative.
We suggest contacting the IRS as soon as they open to minimize wait times.
The IRS does not provide legal assistance, legal advice, or tax guidance, but they are available to answer inquiries regarding the EIN application procedure.
Common EIN Mistakes and Solutions
How do I find my EIN number online?
If you misplace your EIN Confirmation Letter (CP 575) or fail to download it from the internet, obtaining a replacement is not an option.
You can alternatively request an EIN Verification Letter (147C), which can serve the same purpose.
Both formats are recognized by all parties, including financial institutions and state authorities.
I believed that obtaining my EIN was the process to establish my LLC, correct?
No, simply obtaining an EIN from the IRS does not establish an LLC. LLCs are not created through the IRS; they are formed at the state level.
You need to establish an LLC in your state and subsequently request an EIN (also known as a Federal Tax Identification Number).
If you’ve been running your business using an EIN without establishing an LLC, you have inadvertently been functioning as a Sole Proprietorship, with the EIN linked directly to you as an individual.
In other words, the EIN is not linked to your business, as the business entity (the LLC) has not yet been established.
If you’re looking to establish your business as an LLC: Start by forming the LLC, wait for its approval, and subsequently request a new EIN. Afterward, you can go ahead and cancel your initial EIN.
What happens if I apply for an EIN prior to my LLC being approved?
If your LLC receives approval (with the name you provided on your EIN application), there’s no need for concern. Provided that the name on your EIN Confirmation Letter aligns with your LLC name, you can utilize that EIN for your LLC.
If your LLC is denied, you’ll need to submit a new filing with the state and await approval for your updated LLC name. After that, obtain a new EIN from the IRS and proceed to cancel the previous EIN.
How do I cancel an EIN?
To cancel your EIN Number, you must send a cancellation letter to the IRS via mail.
Here are the guidelines along with the cancellation letter: How to terminate an EIN.
EIN Frequently Asked Questions
Does a Single-Member LLC require an EIN?
You might have come across various online articles claiming that Single-Member LLCs are not required to obtain an EIN. Although this statement is technically correct, it is not sound advice.
Obtaining an EIN can safeguard you against identity theft, and it’s essential for various reasons beyond tax filing. Your Arizona LLC requires an EIN for:
- Establish a business bank account for your LLC
- Acquire business lines of credit or commercial loans
- Get a business credit card
- Submit applications for business licenses or permits
- Manage employee compensation (if aplicable)
Additionally, obtaining an EIN is complimentary and can be completed in merely 10 minutes online. In other words, we highly advise securing an EIN for your Single-Member LLC.
Is an EIN necessary for a Multi-Member LLC?
Indeed, every Multi-Member LLC must obtain an EIN from the IRS. This requirement is stipulated by the Internal Revenue Code.
Must I obtain an EIN for an LLC without employees?
Certainly, obtaining an EIN for your Arizona business is advisable, even if you don’t plan to employ anyone.
Although it’s referred to as an Employer Identification Number, it doesn’t necessarily imply that you must have employees. Rather, the EIN serves as a mechanism for the IRS to recognize your business.
(Note: If you are the sole proprietor of your business, you are not classified as an employee. You are merely the owner.)
What's the process for a husband and wife LLC to secure an EIN?
In many states, husband and wife LLCs are typically classified as a Multi-Member LLC, which is taxed as a Partnership.
In community property states such as Arizona, couples who are married have the option to select between:
- Husband and wife LLC classified as a Partnership for tax purposes
- Husband and wife LLC classified as a Single-Member LLC (also known as Qualified Joint Venture)
The way you fill out your EIN application affects the tax classification of your LLC. For further details, please refer to Husband and Wife LLC (Qualified Joint Venture).
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