Michigan S Corp Tax Filing and Compliance Guide
Learn how a Michigan S corp is formed, taxed, & maintained. Understand filing requirements, CIT obligations, & key compliance rules for Michigan S corporations. 7 min read updated on October 10, 2025
Key Takeaways
- A Michigan S corporation (S corp) combines the limited liability of a corporation with pass-through taxation, avoiding double taxation.
- To form a Michigan S corp, businesses must file Articles of Incorporation with the Michigan Department of Licensing and Regulatory Affairs (LARA) and elect S corp status with the IRS using Form 2553.
- Michigan S corps pay Corporate Income Tax (CIT) at 6%, but profits and losses pass through to shareholders’ personal tax returns.
- Businesses must also register for Michigan sales, use, and employer taxes, and file state returns by April 15 (if following the calendar year).
- Michigan S corp owners must follow corporate formalities, including annual reports, director meetings, and proper tax filings, to maintain good standing.
Although a Michigan S-corporation tax return is filed by the corporation, taxes are paid by individual shareholders on their respective share in profits.
What Is a Michigan S-Corporation?
A Michigan S-corporation is a standard corporation that has elected for the special S-corp tax status with the IRS. The election is done by filing Form 2553 with the Internal Revenue Service. Some states like Arkansas, Ohio, New Jersey, Wisconsin, and New York require additional filing at the state level.
Michigan S-corporations offer a formal corporate structure with limited liability, along with the flexibility of profit pass-through for the purpose of taxation.
Just like a C-corporation, an S-corporation is a legal entity that is distinct from its shareholders. Shareholders' liability with a Michigan S-corporation is limited. They can't be held personally accountable for business debts and obligations.
Advantages of a Michigan S Corp Structure
A Michigan S corp offers several financial and operational benefits for small to mid-sized businesses seeking liability protection and tax efficiency.Key advantages include:
- Pass-through taxation: Income and losses are passed directly to shareholders’ personal tax returns, avoiding federal double taxation.
- Limited liability protection: Shareholders’ personal assets remain protected from business debts and lawsuits.
- Potential self-employment tax savings: Shareholder-employees can draw reasonable salaries, with distributions potentially taxed at a lower rate.
- Enhanced credibility: Registering as a corporation in Michigan can strengthen your business’s professional image and access to capital.
- Perpetual existence: The S corp continues to exist even if ownership changes.
Unlike LLCs, S corps have stricter ownership rules and must operate with a board of directors, officers, and shareholder meetings. However, for businesses planning long-term growth or seeking investment, the S corp model in Michigan provides a balance between corporate structure and tax efficiency.
Shareholders of a Michigan S-Corporation
Normally, the financial risk of the shareholders is limited only to the amount they have invested in the corporation. In the event of corporate bankruptcy, the shareholders are not liable to pay the corporation's debts from their personal assets.
In a lawsuit, if a corporation is held liable to pay someone, the corporation's property would be used to satisfy the judgment. Even if the corporation's property is found insufficient to satisfy the judgment, the creditor of an S-corp can't take the personal assets of shareholders.
However, there are certain exceptions to this rule of limited liability. For example, if a corporation has committed a fraud or has acted negligently and harmed someone, the courts may lift the corporate veil to hold the actual culprit accountable.
How to Form a Corporation in Michigan
- Choose a business name for your corporation.
- File Articles of Incorporation with the Secretary of State.
- Appoint a state registered agent to receive legal communication on behalf of the corporation.
- Maintain separate books of accounts and records.
- Prepare corporate bylaws.
- Appoint the directors.
- Hold a meeting of the Board of Directors.
- Issue and allot stock to shareholders.
- Comply with the state-level reporting requirements of Michigan.
- Comply with federal tax and corporate regulatory requirements.
Steps to Elect S Corporation Status in Michigan
Once your Michigan corporation is legally formed, you must take additional steps to become an S corporation:
- File Form 2553 with the IRS within 75 days of incorporation or the start of the tax year when S corp status will take effect.
- Ensure your business meets the IRS’s eligibility criteria—such as having 100 or fewer shareholders, one class of stock, and U.S. shareholders only.
- Register for a Michigan Treasury Online (MTO) account to manage your business tax obligations.
- Maintain compliance with both federal and Michigan corporate requirements, including annual reports and corporate minutes.
Michigan does not require a separate state-level S corp election, meaning once federal approval is granted, your business is automatically treated as an S corp for state tax purposes.
Important Points to Consider When Forming a Michigan S-Corporation
- You must file all the formation documents with the state and pay the state filing fees.
- There may be some restrictions on the types of business allowed to be conducted by Michigan S-corporations.
- You must keep minutes of the meetings of both shareholders and the board of directors.
- The number of shareholders cannot be more than 100.
- You cannot have other corporations, LLCs, partnership firms, certain specified trusts, and non-resident aliens as shareholders of your corporation.
Michigan S Corp Taxation Rules
While a Michigan S corp is a pass-through entity for federal income tax purposes, it remains subject to the Michigan Corporate Income Tax (CIT). The key taxation details include:
- Corporate Income Tax Rate: Michigan imposes a flat 6% CIT on corporate income.
- Apportionment: If your corporation operates in multiple states, you must apportion income according to Michigan’s single-sales-factor formula.
- Annual Report Filing: Every S corp must file an annual report with LARA by May 15 each year, accompanied by a small filing fee.
- Franchise Tax: Michigan does not levy a franchise or privilege tax.
- Federal Pass-through Treatment: Shareholders report income, losses, deductions, and credits on their individual returns.
Failure to comply with state tax and filing requirements may lead to penalties, loss of good standing, or even revocation of corporate status.
Registration for Michigan Taxes
- You must register a new business in Michigan to pay taxes. Use Form 518 for this purpose.
- You should mail Form 518 to the Michigan Department of Treasury at least six weeks prior to the commencement of business.
- Mention whether your business involves selling tangible property, making you liable to pay sales tax, or whether you are into leasing of property, which requires you to pay a use tax.
- If you sell tobacco or motor fuels, you should also register to pay taxes on these items.
- Be aware that Michigan levies corporate income tax, but there are no franchise or privilege taxes in the state as of 2012.
- After the tax year ends, you must file the returns by the 15th day of the fourth month. If your corporation follows the calendar year for taxation, you must file the returns by 15th of April.
Additional State Tax Registrations
Depending on your business activities, your Michigan S corp may need to register for several state-level taxes:
- Sales and Use Tax: Required for businesses selling or leasing tangible personal property.
- Withholding Tax: Applicable if your corporation has employees.
- Unemployment Insurance Tax: Employers must register with the Unemployment Insurance Agency (UIA).
- Motor Fuel or Tobacco Tax: Required for companies engaged in fuel or tobacco sales.
All registrations can be managed through the Michigan Treasury Online (MTO) portal. Timely registration ensures compliance and prevents tax assessment delays.
Employer Obligations
- If your company has employees, you must register for employer-related taxes, like unemployment insurance.
- Find out whether you need to withhold income tax (federal and state) from your employees' salary.
- After you register for the state taxes, you will get personalized tax returns for reporting withheld income.
- Every year, report the withheld income to the state by filing Form 165. The report should also include the copies of W-2 forms distributed to the employees and the IRS.
Federal Taxes
According to Michigan state laws, you must file federal tax returns before filing state returns.
The IRS does not consider an LLC as a separate business category for taxation. For the purpose of taxation, you need to classify your business either as a corporation or a partnership firm.
Recordkeeping and Compliance for Michigan S Corps
Maintaining accurate records is crucial to sustaining your S corp status and avoiding IRS or state penalties. Michigan S corps should:
- Keep detailed meeting minutes and financial records.
- Maintain separate business and personal accounts to preserve liability protection.
- File Form 1120-S annually with the IRS.
- Provide each shareholder with Schedule K-1, reporting their share of income and deductions.
- File Form 941 and Form W-2 for employee wages and withholdings.
Strong recordkeeping demonstrates compliance and protects the corporation’s limited liability shield.
Frequently Asked Questions
-
Does Michigan recognize S corporations for state tax purposes?
Yes. Once an S corp election is approved federally, Michigan automatically honors it for state taxation purposes. -
What is the Michigan Corporate Income Tax (CIT) rate for S corporations?
The CIT rate is 6%, applied to taxable business income apportioned to Michigan. -
Can an LLC elect to be taxed as an S corporation in Michigan?
Yes. A Michigan LLC can file Form 2553 with the IRS to be taxed as an S corp if it meets all eligibility criteria. -
What are the filing deadlines for Michigan S corp returns?
If your corporation follows a calendar tax year, both federal and state returns are due April 15. -
Do Michigan S corps have to pay annual fees?
Yes. S corps must file an annual report with LARA by May 15 each year and pay a nominal filing fee to remain in good standing.
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