Getting an EIN in Indiana is free and fast: as of 2026 the Internal Revenue Service issues it online in about 15 minutes, same day. The Indiana-specific part comes next: once you form your Indiana LLC, you register for state taxes in INBiz using Form BT-1. That can mean a Department of Revenue TID, a sales tax RRMC, and a withholding or unemployment account once you hire.
How to Get Your Indiana EIN in About 15 Minutes
An Indiana EIN is free from the IRS, takes about 15 minutes online, and is issued the same day you apply; after it, you register for Indiana state taxes in INBiz with Form BT-1, which yields a Department of Revenue TID.
- Cost: $0 from the IRS; third-party sites often charge $150 to $300 for the same federal service
- Time: About 15 minutes online, EIN issued immediately; fax SS-4 about four business days, mail about four weeks
- Where to apply: The IRS online EIN Assistant (help line 800-829-4933); foreign owners without a Social Security number apply by phone, fax, or mail
- After your EIN: In INBiz, file Form BT-1 for the DOR TID, withholding, and a sales tax RRMC (7%, $25 per location); unemployment registers separately with DWD via Uplink
- Who needs one: Multi-member LLCs and any LLC with employees; single-member LLCs can get one for a bank account
Does Your Indiana LLC Need an EIN?
Whether an Indiana LLC needs an EIN comes down to how it’s taxed and whether it has employees. The federal rules are the same nationwide, so there isn’t a separate Indiana version of the number.
| Business type | EIN required? | Notes |
|---|---|---|
| Single-member LLC, no employees | Not federally required | Disregarded entity; an EIN still helps with banking and privacy |
| Single-member LLC with employees | Yes | Needed for federal payroll taxes |
| Multi-member LLC | Yes | Defaults to a partnership and files Form 1065 |
| LLC electing S-corp or C-corp | Yes | Election made on Form 2553 or Form 8832 |
| Sole proprietor, no employees | Not required | Can use an SSN, though an EIN adds separation |
| Partnership | Yes | Required for the partnership return |
A single-member Indiana LLC with no payroll is treated as a disregarded entity, so it isn’t federally required to hold an EIN; most owners get one anyway. Multi-member LLCs don’t get that choice, and a clear ownership split in an Indiana operating agreement keeps the responsible-party question simple later.
How to Get Your Indiana LLC’s EIN Free From the IRS, Step by Step
Most Indiana owners finish the online application in one sitting. It helps to know how long Indiana LLC approval takes first, since the name must be final before applying; here’s the sequence that avoids a refile.
- Confirm the LLC is approved: Make sure the Indiana Secretary of State shows the LLC as active and the legal name is final.
- Open the IRS EIN Assistant: The online tool runs Monday to Friday, 6 a.m. to 1 a.m. ET (next day), Saturday 6 a.m. to 9 p.m., and Sunday 6 p.m. to midnight.
- Select the entity type: This screen trips people up, so pick the classification that matches how the LLC is taxed.
- Enter the legal name and any trade name: Type the approved name exactly, then add a DBA only if the LLC uses one.
- Name the responsible party: This is the natural person who controls the LLC, not a nominee or formation company; the online tool needs their SSN or ITIN.
- Choose the reason and submit: Select “started a new business,” review the entries, and submit.
- Download the CP 575 immediately: Save the EIN confirmation letter the moment it appears, because the IRS won’t issue a duplicate.
Indiana EIN Approval: Save Your CP 575 Before Starting INBiz
When the IRS approves your Indiana LLC’s EIN online, the confirmation page gives you the CP 575, the official EIN confirmation letter. Download or print it immediately, because this is the document you will usually rely on when a bank, payroll provider, or Indiana tax registration asks for proof of the federal EIN.
For Indiana owners, this matters before the BT-1 step. The EIN on your CP 575 should match the LLC name approved by the Indiana Secretary of State, because INBiz uses that federal number when you register for Department of Revenue accounts such as a TID, withholding, and a Registered Retail Merchant Certificate.
Do not confuse the CP 575 with your Indiana numbers. The CP 575 confirms the federal EIN only; your Indiana TID comes from the Department of Revenue, the RRMC is your sales tax certificate, and unemployment registration is handled separately through DWD Uplink.
If you lose the CP 575, the IRS generally does not send another original copy. You can request EIN verification later, but it is slower than saving the approval letter the moment it appears.
Online isn’t the only route. Domestic applicants can fax Form SS-4 to 855-641-6935 or mail it to the IRS EIN Operation in Cincinnati, OH 45999.
International applicants, including some foreign owners of an Indiana LLC, can apply by phone at 267-941-1099, Monday to Friday, 6 a.m. to 11 p.m. ET; domestic applicants no longer receive EINs over the phone.
The EIN itself costs nothing; third-party sites often charge $150 to $300 to resell a free federal service. The IRS also limits applicants to one EIN per responsible party per day.
The fastest way to create a headache is to apply with a name that doesn’t match what Indiana approved.
I’ve watched owners drop the “LLC” or type a trade name, then hit a wall when the BT-1 won’t reconcile against the IRS record.
Copy the approved name word for word, because every state registration after it leans on that match.
Get the Indiana LLC name right before the IRS locks in your EIN.
The EIN is free through the IRS, but the application depends on details that should already be final: your approved Indiana LLC name, active state record, tax classification, responsible party, and CP 575 download. Northwest Registered Agent can help with Indiana LLC formation, registered agent service, and EIN filing support if you want the state record and federal paperwork handled in a cleaner sequence before moving on to the BT-1 or other state registrations.
What an Indiana LLC Owner Should Have Ready Before Applying
Gathering a few details first keeps the application quick, and you’ll find most of them on the Indiana formation paperwork.
- The approved legal name, matching the Indiana Secretary of State record exactly
- The Indiana Secretary of State control number and formation date
- The responsible party’s name and SSN or ITIN
- The federal tax classification (single-member, multi-member, or corporate election)
- The reason for applying and the principal business address
Form the Indiana LLC first, then apply, so the name on the CP 575 matches the state record. If you’re not sure the name is free or spelled the way you filed it, Indiana’s business name search confirms it. It’s also worth checking what it costs to start an Indiana LLC before you stack on tax accounts.
EIN vs Your Indiana TID, RRMC, and Secretary of State Control Number
This is where it gets tricky: an Indiana LLC can end up holding several numbers from two different agencies, and they aren’t interchangeable.
| Number or account | Issued by | What it’s for |
|---|---|---|
| Federal EIN | IRS | Federal taxes, payroll, bank accounts, and state registrations |
| Secretary of State control number | Indiana Secretary of State | The LLC’s state formation and entity record |
| Indiana TID | Indiana Department of Revenue | DOR tax accounts such as withholding and sales tax |
| Registered Retail Merchant Certificate | Indiana Department of Revenue | Authority to collect Indiana sales tax |
| SUTA account number | Indiana Department of Workforce Development | Unemployment insurance wage reports |
The EIN is federal and the same in every state; the Indiana TID is a 13-digit DOR account created when the business registers. The control number is the Secretary of State’s entity identifier, not a tax number.
Every week someone tells me their EIN “covers Indiana.” It doesn’t.
Registering for Indiana Taxes Through INBiz After Your EIN
Once the EIN is in hand, Indiana tax registration runs through INBiz using the Business Tax Application, Form BT-1, which won’t go through without a federal tax ID number (FEIN). After registration, the business files and pays in INTIME, the DOR’s online portal.
Indiana withholding tax account
An Indiana LLC with employees, or with nonresident owners receiving distributions, registers for a withholding account with the Department of Revenue. Returns run on Form WH-1, and the annual reconciliation, Form WH-3, is due January 31.
Indiana’s 2026 individual income tax rate is 2.95%, dropping to 2.90% in 2027, so any page still quoting 3.23% is out of date. Many counties add their own income tax, with current rates in the DOR’s Departmental Notice #1.
Indiana sales tax and the RRMC
A business selling taxable goods registers for sales tax and receives a Registered Retail Merchant Certificate, Indiana’s sales tax permit. The rate is 7%, registration is a one-time $25 per location, and each location displays its own certificate.
The certificate renews every two years and updates automatically when filings and payments are current; if returns are missing, the DOR holds it. Remote sellers owe Indiana sales tax once they’re past $100,000 in gross revenue into the state, and the old 200-transaction test was dropped on January 1, 2024.
Indiana unemployment insurance through DWD
Hiring in Indiana adds one more agency. Employers register with the Department of Workforce Development through Uplink Employer Self Service for a SUTA account number, ideally just after the first payroll rather than the quarterly report.
The state’s unemployment tax applies to the first $9,500 of each employee’s wages, and the typical new-employer rate is 2.5%. It’s employer-funded, so nothing comes out of the worker’s paycheck.
Special Indiana taxes that may apply
Indiana doesn’t have a franchise tax or a CAT-style gross receipts tax, which keeps the state layer lighter than many. Certain activities still trigger their own accounts: a food and beverage tax for restaurants, a county innkeeper’s tax for lodging, or a motor vehicle rental excise tax.
The catch with state accounts: once a withholding or sales tax account is open, Indiana expects those returns every period, even when no tax is due, until it’s formally closed. A reliable Indiana registered agent on file helps ensure DOR and DWD notices don’t get missed.
To get the Indiana state tax ID, the owner completes the BT-1 in INBiz, selects the applicable tax types, and receives a TID once processed.
Two things surprise Indiana sellers most.
First, the Registered Retail Merchant Certificate costs $25 per location, not per business, so a second storefront means a second certificate.
Second, plenty of owners still lean on the old 200-transaction rule; Indiana scrapped it in 2024, so now it’s purely the $100,000 threshold.
If you’re nearing six figures of Indiana sales, register before you cross it, not after.
EIN Mistakes That Trip Up Indiana LLC Owners
Most Indiana EIN problems aren’t exotic; they’re small mismatches that surface later at the DOR or the bank. A few are worth flagging:
- Assuming the EIN covers state taxes: It doesn’t, and the DOR TID, RRMC, and SUTA accounts are all separate.
- Naming a registered agent or formation company as responsible party: The IRS wants a natural person who controls the LLC.
- Registering for an RRMC with nothing taxable to sell: That just creates filing obligations the business doesn’t need.
- Using the stale 3.23% income tax figure: Indiana’s 2026 rate is 2.95%.
- Expecting one INBiz registration to create the DWD account: Unemployment registration happens separately through Uplink.
Picking the right help matters too. Owners who’d rather not file alone often compare Indiana LLC formation services, but no service should charge for the EIN itself, since that part’s always free at the IRS.
Lost Your EIN, or Changing Your Indiana LLC
The short version: an EIN doesn’t expire, so a lost one usually just needs tracking down, not replacing.
The number sits on the original CP 575, on prior federal returns, and in business bank records. If none of those turn up, you can request a 147C verification letter from the IRS by phone; our guide to a free EIN lookup walks through each route.
A new EIN isn’t required for a name or address change; just update the IRS with Form 8822-B. A structural change is different: moving from a sole proprietorship to an LLC, or from single-member to multi-member, usually means a new number.
Indiana LLCs also have a separate state filing unrelated to the EIN: the business files an Indiana biennial report with the Secretary of State to stay in good standing.
Indiana EIN and State Tax ID: Common Questions
These come up most from Indiana LLC owners, especially around where the federal EIN stops and Indiana’s own accounts begin.
Is an Indiana EIN different from a federal EIN?
No. There’s no separate Indiana EIN; the IRS issues one federal EIN the business uses everywhere, including Indiana tax filings.
What’s the difference between my EIN and my Indiana Taxpayer Identification Number (TID)?
The EIN comes from the IRS and identifies the business federally. The Indiana TID comes from the Department of Revenue after the BT-1 is filed and ties to state accounts like withholding and sales tax.
Do I need a Registered Retail Merchant Certificate if I already have an EIN?
Only if the LLC sells taxable goods or services. The RRMC is a separate Indiana sales tax permit with a one-time $25 fee per location; holding an EIN doesn’t create it.
Can a foreign-owned Indiana LLC get an EIN without an SSN?
Yes. A responsible party without an SSN or ITIN can’t use the online tool, but can apply on Form SS-4 by fax or mail; international applicants can also call 267-941-1099.
Do single-member Indiana LLCs need an EIN?
Not federally, if there are no employees, because the LLC is a disregarded entity. Most owners still get one for a bank account and to keep the SSN off vendor forms.
Did Indiana drop the 200-transaction remote-seller threshold?
Yes, effective January 1, 2024. Remote sellers now register after passing $100,000 in gross revenue into Indiana in the current or prior year.
After I get my EIN, how do I register for Indiana withholding and unemployment?
Withholding runs through INBiz on the BT-1, then INTIME for filing. Unemployment is separate: employers register with the Department of Workforce Development through Uplink ESS to get a SUTA account number.
What’s Indiana’s state income tax rate for 2026?
It’s 2.95% on individual adjusted gross income, dropping to 2.90% in 2027. Many Indiana counties add their own income tax on top, with rates in the DOR’s Departmental Notice #1.
Looking for an overview? See Indiana LLC Services
Get Your Indiana EIN with Harbor Compliance
Harbor Compliance helps Indiana LLC owners apply for an EIN accurately, avoid IRS filing mistakes, and stay ready for state tax, payroll, and compliance registrations.
