Mainstay Filing
Get Started

EIN Guide · What a federal EIN is, why your Arkansas LLP needs one, and how to get it.

EIN Guide for an Arkansas LLP

An Arkansas limited liability partnership needs a federal Employer Identification Number — it's a separate taxpayer that files its own return. This guide explains what an EIN is, why an LLP always needs one, how to get it free from the IRS, and the mistakes that trip partnerships up along the way.

One price: $199.00/yr covers your formation, your registered agent, and your annual report, plus the $50.00 state filing fee, at cost.

State agency: Arkansas Secretary of State — Business and Commercial Services Division (BCS)

Annual report due: August 1 · Processing: 3-7 business days

Form Your Arkansas LLP ($199.00/yr All-In)

✓ No hidden fees  ✓ No second-year price hikes  ✓ No missed filings

State facts

Arkansas LLP

State filing fee$50.00
Annual report fee$15.00
Annual report dueAugust 1
Std. processing3-7 business days

What an EIN Is and Why an LLP Always Needs One

An Employer Identification Number is a nine-digit number the IRS issues to identify a business for federal tax purposes. Think of it as a Social Security number for the entity. For an LLP, it isn't optional the way it can be for a single-owner sole proprietorship.

Why the LLP requires one

A partnership is its own taxpayer in the eyes of the IRS. Even though the income ultimately flows through to the partners, the partnership itself files an informational federal return each year and issues each partner a statement of their share. It can't do that without an EIN. So the moment you have a partnership — and certainly once it's a registered LLP — you need the number.

What you'll use it for

  • Filing the partnership's federal return and issuing partner share statements
  • Opening a business bank account — banks require the EIN for a partnership account, and a separate account is essential to keeping the liability shield intact
  • Hiring employees and handling payroll tax obligations
  • Setting up accounts with vendors, payment processors, and others who need the firm's tax ID

Because the EIN ties to bank accounts and tax filings, it's a foundational piece — most firms get it right after the Statement of Qualification is accepted.

When to Apply — After Registration

The order matters. Apply for the EIN after the Statement of Qualification is accepted and the LLP officially exists, not before.

Why the sequence matters

When you apply for the EIN, the IRS asks for the entity's legal name and details. If you apply before the state has registered the LLP, you risk a mismatch between what the IRS has on file and what the state has — a discrepancy that can cause headaches later with banks and tax filings. Registering first means the name and structure you give the IRS match the official record.

Timing in practice

For most partnerships the flow is: settle the name, file the Statement of Qualification, wait for it to be accepted, then apply for the EIN, then open the bank account. The EIN application itself is quick, so slotting it in right after registration doesn't slow anything down.

How to Get an EIN — Free, Directly From the IRS

The EIN is free. The IRS does not charge for it, and the fastest way to get one is the online application on the IRS website.

The online application

The IRS online EIN application (the EIN Assistant) is available during posted hours and issues the number immediately at the end of the session. You complete it in one sitting — it can't be saved and resumed — so have everything ready before you start. The application asks for:

  • The partnership's legal name and the fact that it's a partnership/LLP
  • The entity's address
  • A responsible party — a partner who controls or manages the firm — along with that person's taxpayer identification number

At the end, the IRS issues the EIN on screen. Save and print the confirmation immediately; it's the cleanest proof you'll have of the number.

Other ways to apply

If you can't use the online tool — for instance, if the responsible party doesn't have a U.S. taxpayer ID — the IRS also accepts EIN applications by mail or fax using its paper form, though those take longer than the instant online result.

Beware of paid "EIN services"

Some websites charge a fee to "obtain" an EIN for you. The number itself is always free directly from the IRS. Paying a fee gets you nothing the IRS doesn't provide at no cost.

The Responsible Party and Common Mistakes

The IRS requires every EIN application to name a "responsible party" — a real person who ultimately owns or controls the entity, not a company or a nominee. For an LLP, that's typically one of the partners.

Getting the responsible party right

The responsible party must be an individual with a taxpayer identification number, and the IRS expects it to be someone with genuine control over the firm. Naming a placeholder or someone without real authority causes problems down the line, including when the IRS needs to verify the entity.

Mistakes that cause trouble

  • Applying before the LLP is registered, creating a name mismatch with the state
  • Getting the legal name slightly wrong on the application versus the state filing — the two should match exactly
  • Losing the confirmation — save and store the EIN confirmation the IRS issues; retrieving a lost EIN later is more of a hassle than keeping the original
  • Applying for a second EIN when you already have one — a partnership needs only one EIN; a new one isn't required just because a detail changes
  • Paying a third party for something the IRS provides free

Getting the EIN is one of the simpler steps in setting up an LLP, but because so much downstream — banking, taxes, payroll — depends on it, it's worth doing carefully and keeping the record.

What to Do Once You Have the EIN

The number itself is only useful once you put it to work. Right after the IRS issues it, a few practical steps turn the EIN into the working tax identity of the firm.

Open the business bank account

Take the EIN confirmation and the filed Statement of Qualification to the bank and open an account in the partnership's name. This is not a formality — a dedicated business account is one of the pillars of keeping the LLP's liability shield intact. Running the firm's money through a partner's personal account, or paying personal bills from the firm's account, blurs the line between the partners and the entity, which is exactly the kind of behavior a creditor's attorney points to when arguing the partners shouldn't get the protection the LLP is supposed to provide. Separate accounts from day one.

Set up any state tax accounts you need

The EIN is federal, but the firm may also need to register with Arkansas for state-level tax accounts depending on what it does — for example, if it has employees and owes state withholding, or if it sells taxable goods or services and owes sales tax. Those state registrations are separate from the EIN and from the LLP formation, and they run through the appropriate Arkansas tax agency rather than the Secretary of State. A CPA can tell you which accounts your particular firm needs.

Give the EIN to the people who need it

Payroll providers, payment processors, vendors who issue tax forms, and clients who need to report payments to the firm will all ask for the EIN. Having it recorded and easy to retrieve saves repeated scrambling. Just don't treat it as a secret to the point of losing it — the balance is: share it where legitimately needed, and keep your own copy of the IRS confirmation somewhere safe.

Keep it consistent everywhere

The name and EIN the bank has, the ones on your tax filings, and the ones on the state record should all line up. Inconsistencies — a slightly different firm name at the bank than on the return, for instance — are the kind of small mismatch that causes friction at exactly the wrong moment, like when a payment is held up or a filing is questioned. Set it up consistently once and carry it through.

Frequently asked questions

Does an Arkansas LLP need an EIN?

Yes. A partnership is its own taxpayer and files an informational federal return each year, which requires an EIN. You'll also need it to open a business bank account and to hire employees. Unlike a single-owner sole proprietorship, an LLP always needs its own EIN.

How much does an EIN cost?

Nothing. The IRS issues EINs for free through its online application, and the number is issued immediately at the end of the session. Websites that charge a fee to get you an EIN are charging for something the IRS provides at no cost — go directly to the IRS.

When should we apply for the EIN?

Apply after the Statement of Qualification is accepted and the LLP officially exists. Applying first means the legal name and details you give the IRS match the state's record, which avoids mismatches that can cause trouble with banks and tax filings later.

Who is the "responsible party" on the EIN application?

The responsible party is a real individual who owns or controls the entity — typically one of the partners — with their own taxpayer identification number. The IRS requires an actual person with genuine authority over the firm, not a company or a nominee.

Do we need a new EIN if a partner changes?

Usually not. A partnership generally keeps the same EIN through ordinary changes in partners. A new EIN is only needed in specific situations, such as certain fundamental changes in the entity's structure. When in doubt, a CPA can tell you whether a change actually requires a new number.

Ready to form your Arkansas LLP?

Formation, your registered agent, and your annual report. One price, $199.00/yr, with the state fee passed through at cost.

Form Your Arkansas LLP ($199.00/yr All-In)