EIN Guide · What a federal EIN is, why your Hawaii LLP needs one, and how to get it.
Getting an EIN for Your Hawaii Limited Liability Partnership
An EIN is your Hawaii LLP's federal tax ID — the number banks, the IRS, and the state's tax agency use to identify the partnership. Because an LLP files its own partnership return, it needs its own EIN; you cannot run it on a partner's Social Security number. This guide explains what an EIN is, why your LLP must have one, how to get it free from the IRS, and how it fits with your Hawaii tax setup.
One price: $199.00/yr covers your formation, your registered agent, and your annual report, plus the $25.00 state filing fee, at cost.
State agency: Department of Commerce and Consumer Affairs (DCCA), Business Registration Division (BREG)
Annual report due: Anniversary of formation · Processing: 10-15 business days
✓ No hidden fees ✓ No second-year price hikes ✓ No missed filings
State facts
Hawaii LLP
What an EIN Is and Why Your LLP Needs One
An Employer Identification Number (EIN) is a nine-digit number the IRS assigns to identify a business for tax purposes — essentially a Social Security number for the entity. For a limited liability partnership, an EIN is not optional. Because a partnership files its own informational federal return and allocates income to the partners, the IRS treats the partnership as a distinct filer, so it needs its own federal identifier.
Why a partner's SSN will not do
A sole proprietor with no employees can sometimes operate on their own Social Security number. An LLP cannot. The partnership is a separate filer from any individual partner, and using a partner's SSN in place of an EIN would blur the line between the partner and the partnership — the exact separation an LLP is meant to maintain. The EIN keeps the partnership's tax identity distinct from the partners' personal ones.
Where you will use it
- Opening a partnership bank account (banks require the EIN)
- Filing the federal partnership return
- Registering for Hawaii tax accounts, including the General Excise Tax license
- Hiring employees and handling payroll
- Establishing accounts and credit in the partnership's name
How to Apply for an EIN
The IRS issues EINs directly and for free. Be wary of sites that charge a fee to "get" an EIN for you — the application itself costs nothing, and you can complete it yourself in a few minutes.
The online application is the fastest route
Apply through the IRS online EIN application. When you complete it online during the hours the tool is available, the IRS issues the EIN immediately at the end of the session. Download and save the confirmation the moment you get it — retrieving a lost EIN later is a hassle.
What you will need on hand
- The LLP's exact legal name as registered with the Business Registration Division
- The partnership's principal business address
- The name and taxpayer identification number of the "responsible party" — generally a partner who controls or manages the partnership
- Basic details about the partnership: its business activity and that it is a partnership for tax purposes
Other application methods
If you cannot use the online tool — for example, if the responsible party lacks a Social Security number or ITIN — the IRS also accepts EIN applications by fax and mail using Form SS-4. These methods take longer than the instant online result, so use the online tool whenever you qualify.
Timing — When to Get the EIN
Sequence matters. The cleanest approach is to apply for the EIN after your LLP registration is accepted by the Business Registration Division, so the name on the IRS record matches your registered legal name exactly.
Why the order matters
If you apply for the EIN before the LLP is registered and the name ends up differing — even slightly — from what BREG records, you create a mismatch that causes friction later. Banks compare the EIN confirmation against your registration, and the Hawaii tax agency ties your GE Tax account to your identity. Matching names across all three keeps everything aligned.
Do not delay the downstream steps
Because the EIN is a prerequisite for opening a bank account, registering for GE Tax, and hiring, get it promptly once the registration clears. Waiting on the EIN holds up everything that depends on it. Applying online the same week your registration is accepted keeps your setup moving.
The EIN's Place in Your Hawaii Tax Setup
The EIN is a federal number, but it is the key that unlocks your Hawaii tax registrations too. You will use it to register for the state's tax accounts and to identify the partnership across every filing.
Connecting the EIN to Hawaii General Excise Tax
Almost every business operating in Hawaii, including your LLP, must obtain a General Excise Tax license from the Hawaii Department of Taxation and pay GE Tax on gross income. You register for that GE Tax account using the partnership's EIN. So while the EIN itself comes from the IRS, it is a necessary step on the path to being properly set up for Hawaii's most important state-level tax.
Keep the number secure and accessible
Treat the EIN like sensitive business information. Store the confirmation somewhere reliable, share it only with parties who genuinely need it (your bank, your CPA, the tax agencies), and keep it consistent across every account and filing. Sloppy handling of the EIN leads to mismatched records that are tedious to untangle.
One EIN for the partnership
Your LLP needs one EIN for the entity. You do not get a separate EIN for each partner — the partners use their own Social Security numbers on their personal returns to report their share of the partnership's income. The single partnership EIN identifies the LLP itself across all its federal and state tax dealings.
Frequently asked questions
Does my Hawaii LLP need its own EIN?
Yes. Because a partnership files its own informational federal return and allocates income to the partners, the IRS treats it as a separate filer that needs its own EIN. You cannot run the LLP on a partner's Social Security number the way a sole proprietor sometimes can. You will also need the EIN to open a bank account and register for Hawaii tax accounts.
How much does an EIN cost?
Nothing. The IRS issues EINs for free. Sites that charge a fee to obtain one for you are charging for something you can do yourself in a few minutes through the IRS website. Apply directly at the source and keep the confirmation once the number is issued.
How long does it take to get an EIN?
If you use the IRS online application during the hours it is available, you get the EIN immediately at the end of the session. Applying by fax or mail with Form SS-4 takes considerably longer, so use the online tool whenever you qualify. Save the confirmation as soon as you receive it.
Should I get the EIN before or after registering the LLP?
After. Apply for the EIN once your LLP registration is accepted so the name on the IRS record matches your registered legal name exactly. A mismatch between the two creates friction at the bank and with the Hawaii tax agency. Applying the same week your registration clears keeps everything aligned and your setup moving.
Who is the "responsible party" on the EIN application?
The responsible party is generally a partner who controls or manages the partnership and its finances. The IRS wants a real person with a taxpayer identification number behind the entity, not just the business name. For most LLPs this is one of the managing partners, and their name and taxpayer ID go on the application.
Do I use the EIN to register for Hawaii General Excise Tax?
Yes. Although the EIN is a federal number from the IRS, you use it to register the partnership for Hawaii tax accounts, including the General Excise Tax license from the Department of Taxation. The EIN identifies the partnership across both federal and state filings, so getting it is a necessary step before your Hawaii GE Tax setup.
Ready to form your Hawaii LLP?
Formation, your registered agent, and your annual report. One price, $199.00/yr, with the state fee passed through at cost.
Form Your Hawaii LLP ($199.00/yr All-In)