EIN Guide for a Nevada Limited Partnership

An Employer Identification Number, or EIN, is a nine-digit federal tax identification number issued by the IRS. Think of it as a Social Security number for your business — it's how the federal government, banks, and other parties identify the partnership on tax and financial paperwork.

Why a limited partnership can't skip it

Some single-member LLCs can technically operate on the owner's Social Security number. A limited partnership can't. By definition an LP has multiple partners and is taxed as a partnership, which means it files a federal partnership return — and a partnership return requires an EIN. There's no version of a compliant LP that runs on an individual's Social Security number.

What you'll use the EIN for

• Filing the partnership return — Form 1065, filed each year, is keyed to the EIN
• Issuing Schedule K-1s — the partner statements that report each partner's share of income
• Opening a business bank account — banks require the EIN to open an account in the partnership's name
• Hiring and payroll — if the LP has employees, the EIN anchors payroll tax reporting
• Vendor and client paperwork — parties that pay the partnership may request the EIN for their own tax reporting

Getting the EIN is quick, but the application asks for specifics, and having them ready avoids a stalled form.

The responsible party

Every EIN application names a "responsible party" — the individual who ultimately controls or manages the partnership. For an LP, this is typically a general partner, since general partners hold management authority. The responsible party must be a real person (or, in limited cases, an entity), and the IRS uses this designation to know who's accountable for the entity's federal tax matters.

Information the application asks for

• The partnership's exact legal name as filed on the Certificate of Limited Partnership
• The Nevada business address and mailing address
• The responsible party's name and their Social Security number or ITIN
• The date the partnership was formed and the state — Nevada
• The reason for applying (starting a new business) and the type of entity (partnership)

Form the LP first

Apply for the EIN after the Certificate of Limited Partnership is filed and the partnership legally exists. The application asks for the entity's legal name and formation details, so it's cleanest to have the partnership on record with Nevada before you request the number.

The IRS issues EINs directly and at no cost. Be wary of any site that charges a "government fee" to obtain one — the IRS doesn't charge for it.

Online — the fast path

The quickest route is the IRS EIN Assistant at IRS.gov. The online application takes about ten minutes, and the EIN is issued immediately on completion, so you can download the confirmation and use the number the same day. Online applications require the responsible party to have a U.S. Social Security number or ITIN.

Fax or mail — for those without an SSN or ITIN

A responsible party who doesn't have a U.S. Social Security number or ITIN can't use the online tool. Instead, complete Form SS-4 and submit it by fax or mail. Fax turnaround is typically a few business days; mail takes longer. This is the standard route for foreign general partners without a U.S. tax ID.

One EIN per entity

A partnership needs only one EIN, and it stays with the entity. You don't get a new one each year or for each bank account. If the partnership's structure changes dramatically — for instance, it converts to a different entity type — that can require a new EIN, but ordinary operations don't. Keep the confirmation letter (the IRS calls it the CP 575) somewhere safe; banks and other parties ask for it, and getting a replacement from the IRS is slower than simply holding onto the original.

Watch out for third-party filing sites

Because the EIN is genuinely free and quick to obtain directly, be cautious with sites that present themselves as the place to "register" for one and charge a fee. The application is straightforward enough that most partnerships complete it themselves in a single sitting. If you'd rather not handle it at all, a legitimate service should be transparent that its charge is for the convenience of doing the filing, not a government cost — because there is no government cost.

The EIN is federal, but it threads through nearly everything you do at the state and banking level too.

Nevada state filings

Nevada's Secretary of State filings — the Certificate of Limited Partnership, the Initial List, the annual filings — are about identifying the partnership and its general partners, and they operate on Nevada's own entity number rather than the EIN. But when you deal with anything tax-related in Nevada, such as registering for the Commerce Tax if your revenue reaches the threshold, the EIN is how the partnership is identified. The two numbers coexist: a Nevada entity number for state records and a federal EIN for tax matters.

Opening the bank account

This is where most new LPs first put the EIN to use. Banks require the EIN confirmation, the filed Certificate of Limited Partnership, and usually the partnership agreement to open an account in the partnership's name. Keeping the partnership's money in an account under its own EIN — not a partner's personal account — is part of respecting the LP as a separate entity.

How Mainstay Filing fits

We focus on the Nevada state filings that create and maintain your LP. Obtaining the EIN is a direct, free application with the IRS, and we'll point you to the right path — online for a responsible party with an SSN or ITIN, or Form SS-4 by fax or mail otherwise. We don't provide tax advice about how the partnership should be taxed or how to report partner income; that's your accountant's domain. What we make sure of is that the Nevada entity exists and is in good standing so the EIN application and bank account go smoothly.