Form a S-Corp in Missouri

Everything you need to know about forming a S-Corp in Missouri. Filing fees, requirements, timeline, and step-by-step guidance.

$58

Filing Fee

3-4 weeks

Processing Time

Required

Registered Agent

How to File

Select a unique name ending with Corporation, Corp., Incorporated, Inc., Company, or Co. Check availability through Missouri Secretary of State.

30 minutes

Designate a registered agent with Missouri address to receive legal documents and official correspondence.

15 minutes

Submit Form Corp.53 with required information including corporate name, registered agent, and incorporator details to Missouri Secretary of State.

45 minutes

Apply for Federal Employer Identification Number online through IRS website for tax purposes.

20 minutes

Once your S-Corp is officially formed, you'll want to complete these important steps:

•File Form 2553 — Submit IRS Form 2553 within 75 days of incorporation to elect S-Corporation tax status.
•Create Corporate Bylaws — Draft bylaws outlining corporate governance, shareholder rights, and operational procedures.
•Issue Stock Certificates — Issue stock certificates to initial shareholders and maintain corporate records and stock ledger.

✓Pass-through taxation avoiding double taxation on corporate profits
✓Limited liability protection for shareholders from business debts and liabilities
✓Enhanced credibility and professional image compared to sole proprietorships
✓Ability to have up to 100 shareholders with certain restrictions

•Strict IRS requirements including single class of stock and citizen/resident shareholder restrictions
•Required corporate formalities including board meetings, resolutions, and detailed record-keeping
•Limited growth potential due to restrictions on ownership and investment types

Annual Report Fee:$45

Report Due:July 31

Annual registration report required by July 31st each year. Late filing penalty of $45 applies after deadline.

Last verified: December 2025Source

We don't file paperwork for you — we guide you through doing it yourself, which saves money and helps you understand your business from day one.

Every task you need, organized by priority and tailored to Missouri.

When you need help, we connect you with professionals we trust.

Never lose track of where you are or what's next.

Get a personalized checklist for forming your S-Corp in Missouri — and everything that comes after.