Getting an EIN in New Jersey is free as of 2026, and the IRS issues it online the same day. The state part is what costs money and time: $125 to form the LLC, then a tax registration called NJ-REG that covers state withholding and sales tax in one filing. Most owners apply for the EIN the moment they start their New Jersey LLC, then file NJ-REG with the Division of Revenue and Enterprise Services.
How to Get a New Jersey EIN, Start to Finish
A New Jersey EIN is the federal tax ID the IRS issues to your LLC for free, the same day you apply online, and it’s the number you’ll use for banking, payroll, and state registration once you file NJ-REG with the Division of Revenue and Enterprise Services.
- Cost: free from the IRS directly; third-party sites charge $150 to $300 for the same number.
- Speed: the online application issues the EIN the same day; fax takes about 4 business days, mail 4 to 5 weeks.
- No SSN: international applicants apply by phone at 267-941-1099, not the domestic number.
- State step: file NJ-REG with the Division of Revenue and Enterprise Services for withholding and sales tax; the Department of Labor handles unemployment separately.
- Who needs one: every multi-member LLC, any LLC with employees, and most single-member LLCs opening a business bank account.
- Contacts: IRS Business and Specialty Tax Line, 800-829-4933, Monday to Friday, 7 a.m. to 7 p.m. local time; in New Jersey, NJ-REG on NJPortal.
Which New Jersey LLCs Need an EIN?
Not every New Jersey limited liability company (LLC) is federally required to hold an EIN, but most need one anyway. A single-member LLC with no employees counts as a disregarded entity, so the IRS doesn’t require one. That’s the only situation where the EIN is truly optional, and even then owners get it to open a business bank account, hire, or elect corporate treatment.
An operating agreement and a registered agent are formation basics that sit beside the EIN. If yours isn’t drafted yet, our guide to a New Jersey operating agreement covers what the state expects.
Your registered agent ties to the same entity record, so keep a New Jersey registered agent on file before you apply; the EIN form asks for a matching business address.
| Business type | EIN required? | Notes |
|---|---|---|
| Single-member LLC, no employees | No, but recommended | Disregarded entity; needed for a business bank account |
| Single-member LLC with employees | Yes | Required for payroll and withholding |
| Multi-member LLC | Yes | Taxed as a partnership by default; may file NJ-1065 |
| LLC taxed as S-corp or C-corp | Yes | Required for the corporate election |
| Sole proprietor | Only if hiring | An SSN works otherwise |
| Partnership | Yes | Always required |
How to Apply for an EIN in New Jersey
Most New Jersey owners finish the online application in one sitting once the LLC’s approved. The IRS runs the EIN Assistant for free, and the number lands on screen immediately. Here’s the catch: the IRS won’t mail a second copy, so download the confirmation right then.
You’ll apply through the IRS online EIN Assistant, or by fax or mail if you can’t use it.
- Confirm the LLC is approved: match the legal name to the New Jersey record before you start.
- Open the EIN Assistant: the IRS runs it Monday to Friday, 6 a.m. to 1 a.m. ET, with weekend hours too (as of 2026).
- Select the entity type: this is the screen that trips people up, so pick how the LLC is taxed, not just “LLC.”
- Enter the legal and trade names: match the Certificate of Formation, and add the trade name (DBA) only if you use one.
- Name the responsible party: a real person with an SSN or ITIN, never a nominee or another entity.
- Submit and save the CP 575: download the confirmation the moment it appears.
No online access? Form SS-4 clears in about 4 business days by fax or 4 to 5 weeks by mail. Applicants whose business sits outside the United States use the phone line at 267-941-1099, which isn’t the domestic number.
New Jersey EIN Approval: Save Your CP 575 Before You Start NJ-REG
When the IRS approves your New Jersey LLC’s EIN online, the confirmation appears immediately as a CP 575 EIN confirmation letter. Save that page before you move on, because this is the official federal proof of your EIN for banking, payroll, and New Jersey tax registration.
The CP 575 is not your New Jersey Tax ID, Business Entity ID, or MVC corp code. It is the IRS letter that confirms the nine-digit federal EIN tied to your LLC’s legal name.
- ✓ Online: download or print the CP 575 as soon as the EIN appears.
- ✓ Fax: the IRS usually processes Form SS-4 in about 4 business days if a return fax number is provided.
- ✓ Mail: expect roughly 4 weeks before the EIN confirmation arrives.
Sample IRS CP 575 EIN confirmation letter for a New Jersey LLC.
The EIN itself is free. Some sites still charge $150 to $300 to file the form for you, and that adds up fast for something the IRS does at no cost. The agency also limits you to one EIN per responsible party per day.
Keep the New Jersey LLC name clean before the EIN reaches banks and tax accounts.
The EIN is free from the IRS, but the details still need to match your New Jersey Certificate of Formation. Northwest Registered Agent can help with LLC formation, registered agent service, and optional EIN services so the legal name, responsible party, and CP 575 record stay aligned before NJ-REG, banking, or payroll setup.
What You Need Before Applying for Your New Jersey EIN
Form the LLC first, then apply, so the name on the CP 575 matches the state record exactly. A mismatch there is the most common reason a New Jersey filing gets kicked back, and it’s an easy one to avoid.
Before filing, confirm the name’s available and the record’s active with a New Jersey business entity search.
- Approved legal name: exactly as it reads on the Certificate of Formation filed with the Division of Revenue and Enterprise Services.
- New Jersey Business Entity ID: the 10-digit number the state assigns your LLC.
- Responsible party details: the person’s name and SSN or ITIN.
- Entity type and reason: how the LLC is taxed and why you’re applying.
- Business address and start date: the address of record and when activity began.
If approval’s still pending, check how long a New Jersey LLC takes to form before you start the EIN clock.
That $125 formation fee is separate from the EIN, and you’ll find the full picture in our New Jersey LLC formation costs guide.
EIN vs Your New Jersey Tax ID and Business Entity ID
This is where it gets tricky for New Jersey owners. The EIN is federal and nine digits. The New Jersey Tax ID is a state number, usually those nine digits plus a three-digit suffix, which makes twelve.
| Number | Issuer | Format | Used for |
|---|---|---|---|
| IRS EIN (FEIN) | IRS | 9 digits | Federal taxes, banking, payroll, state registration |
| New Jersey Tax ID | NJ Treasury / Division of Taxation | EIN plus a 3-digit suffix (12 digits) | State tax filings and online access |
| New Jersey Business Entity ID | Division of Revenue and Enterprise Services | 10 digits | Identifying the entity in state records |
One more number muddies things: the New Jersey Motor Vehicle Commission issues what it calls an “EIN” or corp code for vehicle transactions. That code isn’t the IRS EIN, and swapping the two stalls registrations.
Nine times out of ten, when a New Jersey client emails me in a panic that the IRS messed up their EIN, they’re actually staring at the twelve-digit New Jersey Tax ID. The IRS didn’t mess up anything. New Jersey just tacks a three-digit suffix onto your federal EIN so its own systems can track you.
Your federal EIN is the nine-digit IRS number. Your New Jersey Tax ID is usually that EIN plus a three-digit suffix.
When a New Jersey form asks for a twelve-digit taxpayer ID, type the nine-digit EIN, then the suffix, or use 000 if the state never assigned one.
Write both numbers down the day you register. Do that once, and you’ll never have this conversation with me.
Registering for New Jersey Taxes with NJ-REG
Once the EIN exists, New Jersey wants the business on its tax rolls, and it all runs through NJ-REG. You’ll enter the Business Entity ID and EIN, then walk away with a New Jersey Tax ID, a Business Registration Certificate, and a Business Tax PIN.
New Jersey expects vendors to register at least 15 days before they start doing business, so don’t treat NJ-REG as an afterthought.
Sales and Use Tax
New Jersey’s Sales and Use Tax sits at 6.625% on most goods and many services. After registering, you get a Certificate of Authority to Collect Sales Tax, which Business.NJ.gov also calls a Certificate of Authorization, and the state requires it displayed at your location.
Remote sellers register after $100,000 in New Jersey sales or 200 separate transactions in the current or prior year, with a 30-day grace period; the New Jersey Sales and Use Tax rules spell out the marketplace facilitator piece.
Gross Income Tax Withholding
Hiring triggers New Jersey withholding. Employers file NJ-927 and WR-30 each quarter, then reconcile on NJ-W-3 by February 15. Cross $10,000 in prior-year liability and you’re a weekly payer; hit $500 withheld in a single month and an NJ-500 payment is due.
Unemployment and Employer Contributions
Payroll also brings in the New Jersey Department of Labor and Workforce Development. Once the LLC pays $1,000 or more in wages in a calendar year, it’s an employer for state purposes.
Through the Division of Employer Accounts and the Employer Access portal, it reports unemployment, workforce development, temporary disability, and family leave contributions. Worth flagging: the 2026 employer taxable wage base for those funds is $44,800.
Conditional New Jersey Taxes
A multi-member LLC may file NJ-1065 and owe a partnership filing fee of $150 per owner, capped at $250,000, while some elect the Pass-Through Business Alternative Income Tax. An LLC taxed as a corporation can owe Corporation Business Tax, though New Jersey still lists those rates under its own update caveat.
Registration isn’t the finish line, either; the LLC still files its New Jersey annual report each year, separate from any tax account.
Where New Jersey LLCs Get the EIN and NJ-REG Wrong
These aren’t generic slip-ups; they’re the specific spots where New Jersey filings break down, and most cost time rather than money. Knowing them upfront keeps the registration clean.
- Reading a state number as the federal one: the twelve-digit New Jersey Tax ID and the MVC corp code aren’t the IRS EIN, and using the wrong one on a federal form bounces it.
- Thinking NJ-REG handled payroll: DORES registers the business for tax, but the Department of Labor’s Division of Employer Accounts is a separate step for employer contributions.
- Missing the 15-day vendor window: New Jersey wants sales-tax registration before the first sale, not after, and late registration draws scrutiny.
- Letting the name drift from the Certificate of Formation: the EIN name has to match the DORES record exactly.
- Applying twice: a duplicate EIN for one LLC means a cleanup call to the IRS Business and Specialty Tax Line.
If I could tattoo one rule on every new New Jersey employer, it’s this: NJ-REG does not finish your payroll setup.
I’ve watched owners run payroll for half a year before they learned their Department of Labor account was never opened.
The day you decide to hire, log into Employer Access and confirm the labor account exists before you cut a single check.
How to Find a Lost EIN or Update Your New Jersey LLC
Losing the EIN confirmation isn’t a crisis. The number’s on prior tax returns, the original CP 575, and old bank account records.
If those are gone, the IRS sends a Letter 147C through the Business and Specialty Tax Line, which is how you recover a misplaced EIN without reapplying. The New Jersey Tax ID, separately, lives on the Business Registration Certificate and in your Business Tax PIN records.
A new EIN is only needed for structural changes, like a single-member LLC adding a member or converting to a corporation. Name and address updates run through Form 8822-B or Form 8832, not a fresh number.
Still deciding how to handle setup? It’s worth a moment to compare New Jersey LLC formation services, since many bundle the EIN step into the price.
New Jersey EIN: Frequently Asked Questions
These are the questions New Jersey LLC owners actually ask once the EIN is in hand, and here’s where the answers stand as of 2026.
Is a New Jersey Tax ID the same as an EIN?
No, and treating them as one number is the single most common mistake in the state. The EIN is federal, issued by the IRS, and nine digits. The New Jersey Tax ID is a state identifier, usually your EIN plus a three-digit suffix, used inside New Jersey tax systems.
What is NJ-REG, and do I need my EIN to complete it?
NJ-REG is New Jersey’s combined tax and employer registration, run by the Division of Revenue and Enterprise Services. For an LLC, you can’t finish it without both the 10-digit Business Entity ID and the federal EIN. Have both in front of you before you log in.
Is the NJ MVC corp code the same as my IRS EIN?
No. The Motor Vehicle Commission’s corp code only covers vehicle transactions, like titling or fleet registration. It’s never a substitute for your federal EIN on tax or banking paperwork.
Is an EIN free for a New Jersey LLC?
Completely free, straight from the IRS. Any site charging $150 to $300 is reselling a free federal service with a markup on top. New Jersey doesn’t charge for the EIN either; its fees cover formation and tax registration, not the federal number.
Can a foreign-owned New Jersey LLC get an EIN without an SSN?
Yes. International applicants whose business sits outside the United States apply by phone at 267-941-1099, or by faxing Form SS-4. The responsible party has to be a real person, but not necessarily one holding a U.S. Social Security number.
Do I need an EIN before forming my New Jersey LLC?
Form the LLC first. The IRS wants the legal entity to exist so the EIN name matches, and New Jersey’s own DORES steps put the certificate filing ahead of NJ-REG once you have the EIN. The reliable order is form, then EIN, then NJ-REG.
When does a New Jersey LLC have to register to collect Sales Tax?
At least 15 days before you start doing business in the state. Remote sellers cross into registration once they pass $100,000 in New Jersey sales or 200 separate transactions in a year. Registering late invites penalties, so don’t wait for the first order to land.
Does a single-member New Jersey LLC need an EIN?
Not strictly for federal tax, since the IRS treats it as a disregarded entity. In practice it’s close to mandatory: banks require it for a business account, payroll won’t run without it, and any future corporate election needs one on file.
- New Jersey Department of Labor: Division of Employer Accounts
- IRS: Get an Employer Identification Number
- IRS: Instructions for Form SS-4
- New Jersey Division of Revenue and Enterprise Services: Getting Registered
- New Jersey Online Business Registration (NJ-REG)
- New Jersey Division of Taxation: Sales and Use Tax
- New Jersey Employer Withholding and Payroll Filing
Looking for an overview? See New Jersey LLC Services
Get Your New Jersey LLC EIN Right with Harbor Compliance
Harbor Compliance helps prepare your EIN application accurately, so your New Jersey LLC’s federal tax ID matches your formation records and is ready for banking, payroll, tax accounts, and state registration steps.
