Getting an EIN for Your West Virginia LLP

An Employer Identification Number is a nine-digit federal tax ID the IRS assigns to a business — the business equivalent of a Social Security number. It identifies your partnership on tax filings, bank paperwork, and payroll.

Why it's mandatory for an LLP

Unlike a single-owner business that can sometimes get by on the owner's Social Security number, an LLP always has at least two partners and files as a partnership. A partnership must file an information return with the IRS (Form 1065) and issue a Schedule K-1 to each partner — and all of that runs on the partnership's EIN. There's no version of operating an LLP where you skip the EIN.

What you'll use it for

• Filing the partnership return (Form 1065) and issuing K-1s
• Opening a partnership bank account — banks require the EIN
• Registering for West Virginia state tax accounts through the One Stop Business Portal
• Hiring and paying employees, and handling payroll taxes
• Establishing credit and accounts in the partnership's name

Because so much depends on it, getting the EIN is one of the early steps after your LLP is registered — often the very next thing you do.

The most important thing to know about an EIN is that the IRS issues it at no cost. You never have to pay a fee to the government for an EIN, and any service that charges you "to get your EIN" is charging only for the convenience of filling out a free form on your behalf.

Apply online — the fastest route

The quickest way is the IRS EIN Assistant at IRS.gov. The application takes about ten minutes, and if it's completed successfully, the EIN is issued immediately — you can download the confirmation and use the number the same day. The online tool is available during posted IRS hours.

What you'll need before you start

• The partnership's legal name exactly as registered with West Virginia, and any trade name you use
• The partnership's address
• A responsible party — a partner who controls or manages the LLP — with their name and taxpayer ID
• Basic details about the partnership: number of partners, the nature of the business, and when it started

The responsible party

The IRS requires a "responsible party" for the EIN — a real person who ultimately controls the partnership, not another entity. For an LLP, that's typically one of the partners. The responsible party's information is how the IRS ties the EIN to an accountable individual.

The online EIN application requires the responsible party to have a US Social Security number or Individual Taxpayer Identification Number. If the partner acting as responsible party doesn't have one, you can't use the online tool — but you can still get an EIN.

The fax or mail route

Complete IRS Form SS-4 (Application for Employer Identification Number) and submit it to the IRS by fax or mail. Fax is faster than mail; the IRS processes it and returns your EIN, though it takes longer than the instant online result. This is the standard path for partnerships with a foreign or non-SSN responsible party.

Plan for the timing

Because the fax and mail routes take longer than the online tool's instant issuance, build that lead time into your plans. If you're waiting on the EIN to open a bank account or register for state tax accounts, start the SS-4 process early so it isn't the bottleneck.

Once the IRS issues your EIN, a few practices keep it useful and a few mistakes are worth avoiding.

Store the confirmation safely

When the EIN is issued, save the confirmation notice somewhere permanent. Banks, state agencies, and your accountant will ask for the number, and having the official confirmation on hand saves you from digging or re-requesting it later.

Use it consistently

Use the partnership's EIN — not any partner's Social Security number — on the LLP's tax filings, bank accounts, and business paperwork. Keeping the partnership's federal ID distinct from any individual's is part of operating the LLP as a genuine separate business.

Mistakes to avoid

• Paying for a free service. Never pay a government fee for an EIN — it doesn't exist. Third parties can file for you, but the number itself is free.
• Getting the EIN before the LLP is registered. Register the partnership as an LLP with the state first, then get the EIN in the partnership's registered name, so the name on the EIN matches the entity that exists.
• Applying multiple times. Apply once. Duplicate applications create confusion and duplicate records that are a nuisance to untangle.
• Using a partner's SSN out of habit. Once the LLP has an EIN, that's the number for the business — routing partnership income or accounts through a personal SSN blurs the line you formed the LLP to keep clean.

The EIN isn't a standalone chore — it's the hinge that several other setup steps swing on, which is why the sequence matters.

The natural order

Register the partnership as an LLP with West Virginia first, so the entity legally exists and has its final registered name. Get the EIN next, in that registered name. With the EIN in hand, you can open the partnership bank account, register for the West Virginia tax accounts your business needs through the One Stop Business Portal, and set up payroll if you'll have employees. Trying to do those later steps before you have the EIN just stalls you — banks and tax registrations ask for it up front — so getting the EIN early clears the path for everything that follows.

When you might need a new one

An EIN generally stays with the partnership for its life, but certain structural changes can require a new one. If the LLP's ownership or structure changes fundamentally — for example, the partnership is effectively replaced by a different entity — the IRS may treat it as a new business needing a new EIN. Routine changes, like admitting or removing a partner while the partnership continues, usually don't. If you're restructuring in a significant way, check the IRS guidance or ask your accountant whether a fresh EIN is required, rather than assuming the old one carries over.

Keep it tied to the right name

Whatever you do, keep the EIN matched to the partnership's actual registered name. If you later register a trade name for the LLP, the EIN still belongs to the underlying registered partnership — the trade name is just an additional name the same business operates under, not a separate taxpayer. Keeping the federal ID, the state registration, and your banking all pointed at the same legal entity is what keeps your paperwork coherent and your bookkeeping clean.