How to Start a C-Corp in Kansas (Quick Answer)
To start a C-corp in Kansas, file Articles of Incorporation with the Kansas Secretary of State, name a registered agent, and pay the filing fee, $85 online or $90 by mail. Once the state accepts it, your corporation legally exists.
After that, you adopt bylaws, appoint directors and officers, issue stock, and get an EIN from the IRS. Kansas moved to a two-year report cycle in 2024, and its corporate income tax adds a surtax above $50,000.
| Filing document | Articles of Incorporation |
| Where to file | Kansas Secretary of State |
| Filing fee | $85 online, or $90 by mail |
| Registered agent | Required, with a physical Kansas address |
| EIN | Required, free from the IRS (Form SS-4 by phone, fax, or mail if you have no SSN or ITIN) |
| Biennial report | Filed every two years (Kansas switched from annual in 2024), about $100 online, due the 15th day of the 4th month after your fiscal year ends |
| Corporate income tax | 3.5%, plus a 3% surtax on income over $50,000, so up to 6.5% |
| Foreign owner (25% or more) | File Form 5472 with Form 1120 every year, or face a $25,000 minimum penalty |
First-year cost: $85 online to file, plus a registered-agent service if you use one, commonly $50 to $150 a year. Your first biennial report follows in the reporting cycle after formation.
Kansas switched from an annual report to a biennial one in 2024, so the report now comes every two years, due the 15th day of the fourth month after your fiscal year ends.
The corporate income tax is 3.5% on the first $50,000 of income, plus a 3% surtax on income above that, so a profitable corporation pays up to 6.5%.
TL;DR
- Kansas switched to a biennial report in 2024: it comes every two years, and the corporate income tax is 3.5% plus a 3% surtax on income over $50,000.
- Step 1, name: pick a unique name with a corporate designator (Inc., Incorporated, Corporation, or Corp.) and check it with the Secretary of State.
- Step 2, registered agent: name one with a physical Kansas address.
- Step 3, Articles of Incorporation: file with the Secretary of State for $85 online ($90 by mail).
- Step 4, bylaws: adopt internal bylaws and keep them with your records.
- Step 5, directors and officers: appoint the board and officers and hold an organizational meeting.
- Step 6, issue stock: authorize and issue shares, keep a stock ledger, and file the 83(b) election within 30 days if your shares vest.
- Step 7, EIN: get a free EIN from the IRS, by Form SS-4 if you have no SSN or ITIN.
- Foreign owner (25% or more): file Form 5472 with Form 1120 every year, or risk a $25,000 penalty.
- Ongoing: a biennial report every two years, plus the 3.5% corporate income tax and the 3% surtax over $50,000.
Why Form a C-Corp in Kansas?
Kansas offers low costs, a two-year report cycle, and a central location with strong agriculture and aviation sectors.
- A biennial report rather than an annual one, so state filings come every two years.
- A low base corporate rate of 3.5% before the surtax.
- Online filing through the Secretary of State.
If you plan to raise venture capital, investors will most likely want a Delaware C-corp. If you will run the business in Kansas and not raise venture money, forming in Kansas avoids registering and paying in two states.
Step 1: Choose and Reserve Your Corporate Name
- Include a corporate designator such as "Inc.", "Incorporated", "Corporation", or "Corp."
- Search the Secretary of State's business database to confirm the name is available and different from existing entities.
- Kansas lets you reserve a name for 120 days for a fee if you are not ready to file.
Step 2: Appoint a Kansas Registered Agent
Every Kansas corporation must name a registered agent with a physical Kansas address, available during business hours to receive legal and state documents.
- The agent can be a person or a company, but needs a real Kansas address, not a PO box.
- The address is public record, so many owners use a commercial service.
- A commercial agent commonly costs $50 to $150 a year.
Step 3: File Your Articles of Incorporation
The Articles of Incorporation is the filing that legally creates your corporation. You file it with the Kansas Secretary of State.
- It lists the corporate name, registered agent, incorporator, and the number of shares the corporation is authorized to issue.
- The fee is $85 online, or $90 by mail.
- Once the state accepts it, your corporation exists and its compliance calendar begins.
Step 4: Adopt Corporate Bylaws
Bylaws are the internal rulebook for how the corporation is run. They are not filed with the state, but a corporation is expected to have them, and banks and investors often ask to see them.
- They set out how directors and officers are elected, how meetings and votes work, and how shares are handled.
- They stay with your records, not with the Secretary of State.
- Skipping them can weaken the separation between you and the corporation that liability protection depends on.
Step 5: Appoint Directors and Hold the Organizational Meeting
A corporation is run by a board of directors, who appoint the officers that handle day-to-day work. Right after formation, the incorporator or initial directors hold an organizational meeting, or sign a written consent in place of one.
- Appoint the initial board and elect officers (usually at least a president, secretary, and treasurer; one person can hold several roles).
- Adopt the bylaws and authorize the issuance of stock.
- Keep signed minutes or the written consent with your records.
Step 6: Authorize and Issue Stock
Issuing stock is how founders get their ownership, and it is easy to rush. The board authorizes shares, then the corporation issues them to the founders and any early shareholders.
- Issue shares to each founder and record what they paid (cash, property, or services).
- Keep a stock ledger, a running record of who owns how many shares.
- Deliver stock certificates or record the issuance electronically, per your bylaws.
The 83(b) election, and its 30-day deadline: if your founder shares vest over time, you generally have 30 days from the grant date to file an 83(b) election with the IRS.
It lets you be taxed on the small value at grant instead of the higher value as the stock vests. The 30-day window cannot be extended, and missing it can be expensive.
Step 7: Get an EIN, Even Without an SSN
An EIN is your corporation's federal tax ID, needed to file taxes, run payroll, and open a bank account. It is free from the IRS.
- With an SSN or ITIN, apply online and get the EIN in minutes.
- Without an SSN or ITIN, apply on Form SS-4 by phone, fax, or mail.
- The EIN is always free; you never pay the IRS for one.
Open a US Business Bank Account
Once you have the EIN, open a dedicated business bank account before money moves through the corporation.
- Keeping corporate and personal funds separate helps protect the liability shield; commingling them is a common reason courts pierce it.
- Banks usually ask for the filed Articles of Incorporation, the EIN letter, and often the bylaws or a board resolution.
- A separate account also makes bookkeeping and the corporate tax return simpler.
If Your Kansas C-Corp Is Foreign-Owned
A Kansas C-corp that is 25% or more owned by a non-US person has an extra federal filing that many international founders miss.
- The corporation files Form 5472 with its annual Form 1120 to report transactions with the foreign owner, such as money put in or paid out for services.
- It is required every year there are reportable transactions, even with little or no profit.
- The penalty is steep: a missed or late Form 5472 starts at $25,000 per form, per year.
Handle Kansas's Ongoing Compliance
Two things run on a schedule: the biennial report and the corporate income tax.
The Biennial Report
- Kansas switched from an annual to a biennial report in 2024, so it now comes every two years, filed with the Secretary of State.
- It is due the 15th day of the fourth month after your fiscal year ends, which is April 15 for a calendar-year corporation in a reporting year.
- Missing it can put the corporation into forfeiture with the state, so confirm the current fee and your reporting year.
Kansas Corporate Income Tax (3.5% plus a 3% Surtax)
- The base rate is 3.5% on the first $50,000 of Kansas income.
- A 3% surtax applies to income over $50,000, so a profitable corporation pays up to 6.5%.
- Federally, the corporation files Form 1120 and pays 21% corporate tax, due the 15th day of the 4th month after year-end.
How Much Does It Cost to Start a C-Corp in Kansas?
| What you pay | Amount | When |
|---|---|---|
| Articles of Incorporation filing | $85 online ($90 by mail) | One time, at formation |
| Registered-agent service (optional) | ~$50 to $150 a year | Yearly, if you use one |
| Biennial report | About $100 online (confirm current fee) | Every two years |
| Kansas corporate income tax | 3.5%, plus a 3% surtax over $50,000 | Yearly |
| Federal corporate tax | 21% of profits | Yearly, with Form 1120 |
How Long Does It Take to Start a C-Corp in Kansas?
- Online filings with the Secretary of State are usually processed within a few business days.
- The EIN follows: minutes online with an SSN or ITIN, or same day to several weeks by Form SS-4 without one.
- Bylaws, the organizational meeting, and issuing stock happen right after the state approves the filing.
Common Mistakes to Avoid
- Treating the report as annual. Kansas moved to a biennial cycle in 2024, so it comes every two years.
- Forgetting the 3% surtax that applies once Kansas income passes $50,000.
- Missing the 30-day 83(b) deadline on vesting founder stock.
- Overlooking Form 5472 if the corporation is 25% or more foreign-owned.
- Using a PO box for the registered agent, which Kansas does not accept.
How FinStackk Helps
FinStackk is an accounting and tax compliance platform for U.S. businesses, taking you from incorporation through ongoing accounting, tax, and compliance in one place.
We handle Kansas C-corp formation, from the Articles of Incorporation to the EIN, through Fin-Start, including the Kansas registered agent.
Once the corporation exists, Fin-Tax keeps the federal Form 1120 deadline and the Kansas corporate income tax and surtax on a proactive calendar. Complyy tracks the biennial report and your registered-agent renewal. Book a free demo to see them in action.
FAQ
How often does Kansas require a report?
Kansas moved from an annual report to a biennial one in 2024, so corporations now file every two years with the Secretary of State. It is due the 15th day of the fourth month after your fiscal year ends. Because the cadence changed recently, confirm your reporting year and the current fee when you file.
How much does it cost to start a C-corp in Kansas?
It costs $85 to file the Articles of Incorporation online, or $90 by mail. Add a registered-agent service if you use one. Going forward, the biennial report is filed every two years, and the corporate income tax is 3.5% plus a 3% surtax over $50,000.
What is Kansas's corporate income tax rate?
Kansas taxes corporate income at 3.5% on the first $50,000, plus a 3% surtax on income above that, so a profitable corporation pays up to 6.5%. It is filed with the Kansas Department of Revenue, on top of the 21% federal corporate tax on Form 1120.
Is it better to form a C-corp or an LLC in Kansas?
Both Kansas corporations and LLCs file the biennial report. An LLC is simpler and taxed once, while a C-corp pays the corporate income tax with the surtax and suits founders who plan to raise venture capital. A C-corp is taxed twice, once at the corporate level and again on dividends.
Should I form my C-corp in Kansas or Delaware?
If you plan to raise venture capital, Delaware is what investors expect. If you will operate in Kansas and not raise venture money, forming in Kansas avoids registering and paying in two states, since a Delaware corporation doing business in Kansas still has to register and pay here. Choose based on where you operate and whether you will raise money.
Can a non-US resident start a Kansas C-corp?
Yes. Kansas sets no citizenship or residency requirement to own a corporation. You will need a Kansas registered agent and an EIN, which you apply for on Form SS-4 by phone, fax, or mail without an SSN.
If a non-US person owns 25% or more, the corporation also files Form 5472 with its Form 1120 every year, with a $25,000 minimum penalty for missing it.