How to Get an EIN in Kansas (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 20, 2026 · Last updated Aug 20, 2026

An EIN for a Kansas business is issued by the IRS, not by the State of Kansas, and it is always free. The fastest route is the online IRS EIN Assistant, which issues the number immediately. Kansas then uses that EIN as the base of your state tax account number when you register with Form CR-16.

Quick Answer

Cost: $0 - the IRS never charges for an EIN
Issuing agency: IRS (federal), not the State of Kansas
Fastest method: Online EIN Assistant - number issued immediately
Paper form: IRS Form SS-4
Daily limit: One EIN per responsible party per day
Kansas tax registration: Form CR-16, Kansas Department of Revenue, no fee
Kansas entity registration: Kansas Secretary of State (separate from the EIN)

What an EIN Is and Who Needs One in Kansas

An Employer Identification Number is a nine-digit federal tax ID the IRS assigns to a business. It is the business equivalent of a Social Security number and appears on payroll filings, business tax returns, W-9 forms, and most bank account applications. Kansas does not issue EINs and cannot change or cancel one; the number is purely federal. Our national EIN guide covers the concept in depth.

You need an EIN if the business has employees, if it is taxed as a partnership or a corporation (including an S-corp election in Kansas), if it files excise or employment tax returns, or if it withholds tax on income paid to a nonresident alien. A single-member LLC in Kansas with no employees and no excise obligations may technically use the owner's Social Security number, but nearly every bank will ask for an EIN before opening a business account, so most owners get one anyway. A sole proprietor is in the same position.

The most important consumer-protection point comes straight from the IRS: beware of websites that charge for an EIN. You never have to pay a fee for one. Paid "EIN filing services" simply retype your answers into the same free federal application.

Step 1: Register the Kansas Entity First

If the business will be an LLC or a corporation, register it with the Kansas Secretary of State before applying for the EIN. The IRS issues the EIN in the exact legal name you type, and a mismatch between the IRS name and the name on the Kansas filing causes rejected bank applications and mismatched tax notices later. See how to form an LLC in Kansas and Kansas articles of organization for the filing itself, and confirm the exact registered name with the Kansas business entity search. Every Kansas entity also needs a Kansas registered agent.

Sole proprietors have nothing to register with the Secretary of State and can go straight to the IRS. If you trade under a name other than your own, review Kansas DBA filing first so the trade name is settled before the EIN is issued.

Step 2: Identify the Responsible Party

Every EIN application names a responsible party - the individual who ultimately owns or controls the entity, or who exercises effective control over its funds and assets. That person's own SSN or ITIN goes on the application. The IRS limits issuance to one EIN per responsible party per day, so if you are forming several Kansas entities you will need several days, several responsible parties, or the paper route.

The responsible party must be a natural person, not another company, except in a narrow set of government and publicly traded situations. If control later changes hands, the IRS expects Form 8822-B to be filed to update the record.

Step 3: Apply Online with the IRS EIN Assistant

The online EIN Assistant is the fastest option and the one the IRS prefers. It validates answers in real time and issues the number at the end of the session, so a Kansas owner who starts the application in the morning can open a bank account the same afternoon. The tool is available Monday through Friday from 6:00 a.m. to 1:00 a.m. Eastern the following day, Saturday from 6:00 a.m. to 9:00 p.m. Eastern, and Sunday from 6:00 p.m. to midnight Eastern.

Two operational cautions. First, the session times out after a period of inactivity and cannot be resumed, so gather the legal name, Kansas street address, entity type, formation date, reason for applying, and expected number of employees before you begin. Second, download and save the CP 575 confirmation notice the moment it appears - the IRS will not email you a copy, and requesting a replacement letter later takes weeks.

Step 4: Or File Form SS-4 by Fax or Mail

The paper application is Form SS-4, Application for Employer Identification Number. It is the required route for applicants whose responsible party has no SSN or ITIN, and it is the fallback whenever the online tool rejects an entry. Fax processing generally returns the number in a matter of business days; mail takes considerably longer. International applicants without a US taxpayer identification number can also apply by telephone through the IRS international line. If the responsible party is a foreign national, read what an ITIN is first, because the two numbers are often confused.

Keep in mind that the EIN is not a license, a tax exemption, or proof of anything beyond identity. It does not register you for Kansas sales tax, it does not authorize a regulated activity, and it does not by itself create any filing obligation. Each of those comes from a separate registration. Owners who assume the EIN "registers the business" often discover a missed Kansas sales tax account only after the first notice from the Department of Revenue arrives.

Step 5: Register for Kansas Tax Accounts (Form CR-16)

The EIN alone does not register you with Kansas. The Kansas Department of Revenue uses the Business Tax Application, Form CR-16, to open the state accounts your activity requires - retailers' sales tax, compensating use tax, withholding tax, and various special taxes. Kansas charges no fee for business tax registration itself, although particular licenses carry their own fees. The Department's Publication KS-1216 is the official instruction booklet.

Kansas builds its tax account number on your federal EIN: the Department describes the account number as your federal EIN followed by the letter "F," and it assigns a "K" or "A" number to applicants who are not required to have an EIN. The number is partially masked in public-facing documents to protect the EIN. That linkage is another reason to get the EIN before filing CR-16 rather than after.

The state's Business Center One Stop walks through which tax types apply to a given activity, and it connects to the licensing side as well. See how to get a business license in Kansas for local and occupational requirements, and self-employment tax in Kansas for the owner-level tax picture.

Two mistakes account for most Kansas EIN problems. The first is applying before the Secretary of State filing is accepted, which locks in a legal name that does not match the state record; the fix is a name-change letter to the IRS, which takes weeks. The second is letting a formation service act as responsible party. The responsible party should be an actual owner or manager, because the IRS treats that person as the contact of record for the entity and routes notices accordingly.

Plan the sequence around your bank as well. Kansas banks typically want the stamped Secretary of State filing, the CP 575 EIN notice, the operating agreement, and photo identification for each signer. Getting the EIN before the bank appointment - rather than during it - is what turns account opening into a single visit. If you intend to elect S-corp treatment, do not delay the EIN either, because Form 2553 asks for the EIN and cannot be processed without one.

After You Have the EIN

Store the CP 575 with your formation documents and your Kansas operating agreement. Use the EIN consistently - on the business bank account, on W-9s issued to clients, on payroll registrations, and on every federal return. If the business later changes structure, the EIN may or may not carry over: a change in tax classification alone usually does not require a new EIN, but converting a sole proprietorship into a corporation generally does. The IRS publishes the specific situations that require a new number.

EINs are never reused and never expire. If the business closes, you do not "cancel" the EIN; you ask the IRS to close the business account associated with it, and you separately wind up the entity with the state - see how to dissolve an LLC in Kansas and the national dissolution guide. If you later register a brand name, the Kansas trademark page covers that separate track.

Frequently Asked Questions

How much does an EIN cost in Kansas?

Nothing. The IRS issues EINs free and warns against sites that charge for one. Kansas also charges no fee for business tax registration on Form CR-16.

Does Kansas issue the EIN or does the IRS?

The IRS. Kansas agencies play no part in assigning it, though the Department of Revenue builds your state tax account number on the EIN.

How fast can I get an EIN in Kansas?

Immediately online during the EIN Assistant's posted hours. Fax filings of Form SS-4 take a few business days; mail takes far longer.

Does a single-member LLC in Kansas need an EIN?

Not always, but banks generally require one, and hiring or electing S-corp treatment makes it mandatory.

What is Kansas Form CR-16?

The Kansas Department of Revenue Business Tax Application, used to open sales, use, and withholding accounts. No registration fee.

Can I get an EIN without a Social Security number?

Yes - by fax or mail on Form SS-4, or by phone for international applicants. The online tool requires an SSN or ITIN.

Sources

IRS - Get an Employer Identification Number (free; online tool hours; one EIN per responsible party per day).
IRS - About Form SS-4.
IRS - Do You Need a New EIN?
IRS - Single Member Limited Liability Companies.
IRS - About Form 8822-B (change of responsible party).
Kansas Department of Revenue - Business Registration.
Kansas Department of Revenue - Pub. KS-1216, Business Tax Application and Instructions (CR-16; EIN followed by "F"; no registration fee).
Kansas Department of Revenue - Form CR-16, Business Tax Application.
Kansas Department of Revenue - Business Registration FAQs.
Kansas Secretary of State - Register a Business.
Kansas Business Center One Stop - Determine Business Tax Requirements.

LegalGlass provides general information for educational purposes and is not legal advice, is not a law firm, and is not a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; confirm current requirements with the IRS, the Kansas Department of Revenue, and the Kansas Secretary of State before acting.