How to get an EIN in Kentucky comes down to a free, fifteen-minute application with the IRS, and as of 2026 the federal number still costs nothing direct from the source. Kentucky issues none of it. The state work begins afterward: withholding, sales and use tax, and the Limited Liability Entity Tax, all registered with the Kentucky Department of Revenue at MyTaxes.ky.gov on Form 10A100.
Form the limited liability company first; start your Kentucky LLC before you apply, so the name on the CP 575 matches your approved record.
How to Get a Kentucky EIN for Your LLC
A Kentucky EIN is the free federal Employer Identification Number the IRS issues to your LLC, usually online in about fifteen minutes with same-day delivery; Kentucky itself issues no EIN, so any state tax accounts come afterward through the Department of Revenue.
- Cost: $0 directly from the IRS; paid services resell it for $150 to $300.
- Time: Immediate online; about 4 business days by fax, roughly 4 weeks by mail.
- Where: IRS EIN Assistant for the EIN; MyTaxes.ky.gov and Form 10A100 for Kentucky tax accounts.
- Who needs one: Any Kentucky LLC that hires, has multiple members, or elects corporate tax; single-member LLCs usually want one anyway.
- Contacts: IRS Business and Specialty Tax Line, 800-829-4933 (Mon-Fri, 7am-7pm local), for federal EIN questions; Kentucky Department of Revenue at MyTaxes.ky.gov for state tax accounts.
Do You Need a Federal EIN for Your Kentucky LLC?
Not every Kentucky LLC is federally required to hold an EIN, but most end up needing one fast. The answer turns on how the IRS classifies the entity and whether you’ll hire.
| Business type | EIN required? | Notes |
|---|---|---|
| Single-member LLC, no employees | Not federally required | Disregarded entity; still smart for a business bank account |
| Single-member LLC with employees | Yes | Payroll and withholding trigger the need |
| Multi-member LLC | Yes | Taxed as a partnership by default |
| LLC electing S-corp or C-corp tax | Yes | Election uses Form 2553 or Form 8832 |
| Sole proprietor | Sometimes | Needed once you hire or owe certain excise taxes |
| Partnership | Yes | Required for federal filing |
A single-member LLC with no employees stays a disregarded entity, so the owner can use a Social Security Number on some filings. Even then it’s worth getting the EIN, since that keeps the SSN off vendor forms and readies the business for payroll. Multi-member owners should pair it with a Kentucky operating agreement that records each member’s stake.
How to Get Your Kentucky EIN from the IRS, Step by Step
Most Kentucky owners finish the online application in about fifteen minutes. Here’s the sequence that keeps you from refiling.
- Confirm the LLC is approved: Wait for the Kentucky Secretary of State to accept your Articles of Organization so the legal name matches.
- Open the IRS EIN Assistant: It runs Monday-Friday 6am-1am, Saturday 6am-9pm, and Sunday 6pm-12am Eastern, and the session drops after 15 minutes of inactivity.
- Pick the right entity type: This screen trips people up; a single-member LLC isn’t a corporation unless it elected that treatment.
- Enter the legal name, then any trade name: The legal name controls, and a DBA goes in the trade-name field.
- Name the responsible party: This is a natural person with an SSN or ITIN who controls the LLC, not a nominee or your Kentucky registered agent.
- Choose the reason and submit: Then download the CP 575 right away, because the IRS won’t resend it.
If the online tool won’t work for you, fax Form SS-4 (about four business days) or mail it (roughly four weeks). The phone route at 267-941-1099 is only for international applicants whose principal place of business sits outside the United States; domestic phone EINs have ended.
The EIN is free. Third-party sites charging $150 to $300 are reselling a free federal service from the Internal Revenue Service, which issues just one EIN per responsible party per day. If you want help forming the entity itself, weigh Kentucky LLC formation services separately from anything billing itself as an EIN service.
Kentucky EIN Approval (EIN Confirmation Letter): Save Your CP 575 Before MyTaxes, LLET, and KEIN Setup
Once the IRS approves your Kentucky LLC’s EIN, download the CP 575 confirmation letter before you close the screen. This is the official EIN approval notice that proves the federal number belongs to your LLC, and it is the record you may need for banking, payroll, and Kentucky tax account setup.
The CP 575 is an IRS letter showing your LLC’s legal name, EIN, and confirmation details. For a Kentucky LLC, check that the name matches the Kentucky Secretary of State record before using the number on MyTaxes, Form 10A100, payroll paperwork, or unemployment registration.
- For Kentucky tax accounts: use the EIN after approval to register through MyTaxes.ky.gov or Form 10A100 for the Kentucky accounts that apply to your business, including withholding, sales and use tax, and Corporation/LLET registration.
- For unemployment: the federal EIN does not replace your Kentucky Employer Identification Number. If you hire employees, set up the KEIN separately through Kentucky’s unemployment employer system.
- For recordkeeping: store the CP 575 with your Articles of Organization, operating agreement, Kentucky tax confirmations, and payroll records so you are not searching for proof later.
The IRS will not issue the same CP 575 again. If you lose it, you generally need to request an EIN verification letter, often called a 147C letter, instead.
Make the Kentucky filing clean before the IRS assigns your EIN.
The EIN is free through the IRS, but it works best when your Kentucky LLC record is already settled. The approved legal name, tax classification, responsible party, and CP 575 confirmation letter all need to line up before you use the number for banking, MyTaxes, payroll, or other state registrations. Northwest Registered Agent can help with Kentucky LLC formation, registered agent service, and EIN filing support if you want the setup handled in a cleaner order.
What Kentucky LLC Owners Should Have Ready Before Applying
Have these details in hand before you open the application, since it runs on that 15-minute clock. Forming the LLC first matters because the name on the CP 575 shouldn’t drift from your approved Kentucky record.
- Approved legal name: matching your filed Kentucky business record exactly.
- Formation date and organization number: from the Secretary of State filing.
- Responsible party details: legal name plus SSN or ITIN.
- Entity type and reason: new business, hiring, or banking.
- Business address: a Kentucky street address, not just a PO box.
Approval timing varies by method, so leave a buffer before any payroll deadline; how long a Kentucky LLC takes to form hinges on whether you file online or on paper.
EIN vs Your Kentucky Withholding, Sales Tax, LLET, and KEIN Numbers
A Kentucky LLC can end up holding several numbers, and they aren’t interchangeable. The EIN, sometimes called the FEIN, is federal; the rest come from two different Kentucky agencies, and they’re easy to mix up on a tax form.
| Item | IRS EIN (federal) | Kentucky state numbers |
|---|---|---|
| Issued by | Internal Revenue Service | Department of Revenue; Office of Unemployment Insurance |
| Used for | Federal tax, payroll setup, bank accounts, W-9s | Withholding, sales and use tax, LLET, jobless-benefit reporting |
| Who needs it | Most LLCs | LLCs that hire, sell taxable goods, or owe LLET |
| Where to get it | IRS EIN Assistant | MyTaxes.ky.gov; KEWES for the KEIN |
Every payroll season I watch a Kentucky owner hand the bookkeeper their EIN and assume it covers unemployment. It doesn’t.
Two agencies, two portals, two numbers. I set up both before the first payroll run, not after the first late notice lands.
After Your EIN: Registering Kentucky Tax Accounts on MyTaxes and Form 10A100
The EIN unlocks Kentucky’s state registrations, and you can’t open most of them without it. The Department of Revenue handles the bulk through one combined application.
Kentucky income tax withholding
Hire in Kentucky and you’ll register an Employer’s Withholding Tax Account. The 2026 withholding rate is 3.5%, and every filing frequency has to e-file and e-pay. Register about 30 days before you first pay wages.
Kentucky sales and use tax
Selling taxable goods means a Sales and Use Tax Account/Permit. The state rate is 6%, with no local sales tax anywhere in Kentucky. Remote sellers register after 200 sales into Kentucky or $100,000 in Kentucky receipts, whichever hits first; it’s an “or” test, not both. Register through MyTaxes or Form 10A100 once your Kentucky activity calls for it.
Limited Liability Entity Tax (LLET)
Here’s the Kentucky-specific layer most competitors skip. The Limited Liability Entity Tax applies to LLCs and other liability-protected entities, even a single-member LLC that’s federally disregarded. The minimum is $175 when gross receipts or gross profits are $3 million or less. Above $6 million, a formula applies: 0.095% of gross receipts or 0.75% of gross profits.
The LLET catches new Kentucky owners off guard more than anything else on this list. I’ve had single-member clients swear they owe the state nothing because they’re disregarded federally.
Kentucky doesn’t see it that way; the LLET follows the liability shield, not the federal classification.
I tell every client to budget the $175 minimum from day one, even in a year the LLC turns no profit at all.
Corporation income tax
An LLC that elects corporate treatment also opens a Corporation Income Tax Account, taxed at a flat 5%. Most small LLCs won’t touch this unless they’ve made that election with the IRS.
Unemployment insurance and your KEIN
Hiring brings in a second agency. The Kentucky Employer Identification Number, or KEIN, comes from the Office of Unemployment Insurance through KEWES, and it requires your federal EIN first. Liability starts at $1,500 in gross wages in a quarter, or one worker across 20 weeks; the 2026 taxable wage base is $12,000 per worker, on Rate Schedule A.
Local and industry accounts
Worth flagging: state registration doesn’t clear local obligations. Many Kentucky cities and counties levy an occupational tax, and specialty accounts such as transient room or telecommunications tax appear on Form 10A100 by activity.
To register, sign in to MyTaxes.ky.gov or file the Kentucky Tax Registration Application, Form 10A100. Your EIN is required either way, and online beats paper by about three weeks. Fold these into what a Kentucky LLC actually costs, and keep your Kentucky annual report on the calendar for June 30.
EIN and Registration Mistakes That Cost Kentucky LLC Owners
A few Kentucky mistakes surface again and again, and most cost time rather than dollars. Here’s what to watch.
- Expecting an EIN by phone: Some Kentucky resources still imply you can call the IRS to get a domestic EIN. That option is gone; domestic applicants apply online, by fax, or by mail. The 800-829-4933 line is still fine for checking status, just not for getting the number itself.
- Assuming one registration covers everything: A MyTaxes withholding account doesn’t create your KEIN, because unemployment sits at a separate agency.
- Ignoring the LLET: Disregarded status is a federal idea, and the state tax still applies to the LLC.
- Misreading the sales-tax threshold: It’s 200 sales or $100,000, never both at once.
- Name mismatches: The SS-4 legal name has to match the Kentucky Secretary of State record, or a bank or the DOR will balk.
Portal confusion in Kentucky is the question I field almost every week. Older guides route people to Kentucky Business One Stop, and a few still tell people to call the IRS for a domestic EIN, an option the agency dropped years ago.
If a page says to phone the IRS for a domestic EIN, I treat it as out of date.
Lost Your CP 575 or Changing Your Kentucky LLC?
A misplaced CP 575 isn’t a dead end, though the IRS can’t reissue that exact notice. Find the number on a prior return or a bank record, or request a 147C verification letter from the IRS for proof.
Some changes force a new EIN, while others don’t. Converting a sole proprietorship to an LLC, or moving from single-member to multi-member, usually requires a fresh one. A name or address change doesn’t; you file Form 8822-B, or Form 8832 to change tax classification.
Your Kentucky numbers live elsewhere: the DOR account sits in MyTaxes, and the KEIN sits in KEWES, both separate from the federal CP 575 or 147C.
Kentucky EIN and State Tax Account Questions
These are the questions Kentucky owners raise most once the federal step is done. Each answer reflects current 2026 IRS and Kentucky guidance.
Is a Kentucky EIN the same as a federal EIN?
Yes. When people say “Kentucky EIN,” they almost always mean the federal EIN from the IRS. Kentucky doesn’t issue it.
Is an EIN free in Kentucky?
Yes, when you apply directly with the IRS. Kentucky doesn’t charge for the federal number, and any site billing you for it is reselling something free.
Can a non-U.S. resident get an EIN for a Kentucky LLC without an SSN?
Yes. File Form SS-4 by fax or mail if the online tool isn’t open to you. If your principal place of business is outside the United States, call 267-941-1099.
Does a single-member Kentucky LLC need an EIN?
Not always, if it has no employees and stays disregarded. Even so, most single-member LLCs get one for banking, payroll readiness, and to keep an SSN off vendor paperwork.
What’s the difference between my EIN, my Kentucky withholding account, and my KEIN?
The EIN is federal. The withholding account comes from the Department of Revenue for employee income tax, while the KEIN comes from the Office of Unemployment Insurance for jobless-benefit reporting.
What are Form 10A100 and MyTaxes.ky.gov, and does my EIN come first?
Form 10A100 is the Kentucky Tax Registration Application, and MyTaxes.ky.gov is the portal that processes it faster than paper. Your federal EIN comes first, since the state asks for it during registration.
Does a Kentucky LLC owe LLET after getting an EIN?
Often, yes. The Limited Liability Entity Tax applies to LLCs regardless of federal disregarded status, starting at a $175 minimum at or below $3 million in gross receipts or gross profits.
- IRS: Get an Employer Identification Number
- IRS: Instructions for Form SS-4
- Kentucky Department of Revenue: Register a Business
- Kentucky Department of Revenue: Corporation Income and Limited Liability Entity Tax
- Kentucky Office of Unemployment Insurance: Employer Registration (KEWES)
- Kentucky Secretary of State: Business Filings
Looking for an overview? See Kentucky LLC Services
Get Your Kentucky LLC EIN with Harbor Compliance
Harbor Compliance helps Kentucky LLC owners apply for a federal tax ID, so they can open a business bank account, hire employees, and prepare for state tax registration with confidence.
