The simplest way to start a business in Michigan — step by step, plain English, no experience required. All information verified from official Michigan and IRS sources.
A sole proprietorship is the simplest business structure that exists. There is no paperwork to file with the state of Michigan. There is no formation fee. The moment you start doing business — freelancing, selling products, offering services — you are legally operating as a sole proprietor. It happens automatically.
You and the business are the same legal entity. That means all the income is yours, all the decisions are yours, and all the responsibility is yours. There is no separation between you and the business in the eyes of the law.
This simplicity is both the biggest advantage and the biggest risk. A sole proprietorship is the right starting point for many people testing a business idea, freelancing on the side, or running a low-risk service business. It is not the right structure for anyone whose business could create significant legal liability — for that, an LLC is a better choice.
There is no registration required to start a sole proprietorship in Michigan. But there are smart steps to take to run it properly, protect yourself as much as possible, and set yourself up to grow.
You have two options for your business name as a sole proprietor in Michigan. You can operate under your own legal name — for example, "Jane Smith Consulting" — with no additional filing required. Or you can choose a trade name (also called a DBA — "Doing Business As") that is different from your legal name.
If you want to operate under a name that is not your own legal name — for example, "Great Lakes Lawn Care" instead of "John Smith" — you will need to file an Assumed Name Certificate (also called a DBA) with your county clerk's office.
Search your desired business name at mibusinessregistry.lara.state.mi.us to make sure it is not already in use. Also check domain and social media availability. If you plan to use a trade name, locate your county clerk's office to file the Assumed Name Certificate — each Michigan county handles this locally.
If you are operating under a trade name that is different from your own legal name, Michigan requires you to file an Assumed Name Certificate with the county clerk in the county where your business operates. This is commonly called a DBA — "Doing Business As."
This filing does NOT create a separate legal entity. It simply registers your trade name publicly so people know who is behind the business name. It also gives you the legal right to open a business bank account and accept payments under that name.
Contact your local county clerk's office to get the Assumed Name Certificate form. Filing fees vary slightly by county but are typically around $10. You file in the county where your business operates, not necessarily where you live. After filing, keep a certified copy — banks may ask to see it when you open a business bank account.
If you plan to eventually form an LLC, you may want to skip the DBA filing and go straight to forming an LLC instead. An LLC gives you the trade name, liability protection, and business credibility all in one step. A DBA is most useful if you want to start operating immediately under a trade name while keeping your costs at zero.
As a sole proprietor with no employees, you are technically allowed to use your personal Social Security Number for business tax purposes. However, getting an EIN (Employer Identification Number) is strongly recommended for almost everyone. It keeps your Social Security Number off your business documents and reduces your risk of identity theft.
Apply free at irs.gov — Apply for EIN Online. Available Monday–Friday 7am–10pm Eastern. Never pay anyone to get your EIN — it is always free directly from the IRS.
Many websites charge $50–$300 to "get your EIN for you." This is unnecessary. The IRS application takes about 10 minutes and is completely free at irs.gov. Any site charging you for an EIN is a middleman you do not need.
Even though a sole proprietorship does not legally require a separate business bank account, keeping your business money completely separate from your personal money is one of the most important habits you can build as a business owner. Mixing the two creates a tax nightmare and makes it nearly impossible to know if your business is actually profitable.
Open a dedicated business checking account. Online banks like Mercury and Relay offer free business checking with no monthly fees — great for sole proprietors just starting out. Traditional options include Huntington Bank, Chase, and local Michigan credit unions. Bring your EIN, ID, and DBA certificate if you have one.
Every dollar in and out of your business bank account is a clear business transaction. Every dollar in your personal account is personal. When tax time comes, your accountant (or you) will thank you for keeping these completely separate from day one.
Michigan does not require a general business license at the state level for most businesses. However, depending on what your business does and where it operates, you may need specific licenses or permits at the state, county, or local level.
Check your industry-specific license requirements at michigan.gov/lara. If you sell taxable goods or services, register for a Michigan Sales Tax License (free) at michigan.gov/taxes/mto. Contact your city or township clerk to ask about local business license requirements.
As a sole proprietor, you do not file a separate business tax return. All of your business income and expenses are reported on your personal federal tax return using Schedule C. Your net profit from Schedule C flows directly to your personal Form 1040.
The most important tax concept to understand as a sole proprietor is self-employment tax. When you work for an employer, your employer pays half of your Social Security and Medicare taxes. As a sole proprietor, you pay both halves — that is 15.3% on your net business profit, on top of your regular federal and Michigan income taxes.
Unlike a W-2 employee where taxes are automatically withheld from your paycheck, as a sole proprietor you are responsible for sending estimated tax payments to the IRS and Michigan Treasury every quarter. If you wait until April and pay everything at once, the IRS will charge you an underpayment penalty. Set aside roughly 25–30% of every payment you receive for taxes.
Set up quarterly estimated tax payments at irs.gov/payments (federal) and michigan.gov/taxes/mto (Michigan). Consult a CPA to calculate your estimated payment amounts — they will factor in your income, deductions, and self-employment tax to give you accurate numbers.
This is the most critical step for sole proprietors specifically, because you have zero liability protection from the business structure itself. If a customer sues you, if someone is injured by your product or service, or if you make a professional mistake — your personal assets (home, car, savings) are all at risk. Insurance is your only line of defense.
Get quotes from business insurance providers. NEXT Insurance, Hiscox, and CoverWallet are popular options for small businesses and sole proprietors that offer fast online quotes. General liability coverage often starts at $25–$50 per month depending on your industry and revenue.
If the lack of liability protection is making you uncomfortable — that's a sign you should consider forming an LLC. An LLC gives you legal separation between you and the business for just $50 in Michigan. Many people start as a sole proprietor to test their idea, then convert to an LLC once the business picks up. See our Michigan LLC Guide for the full walkthrough.
One of the biggest advantages of a sole proprietorship is how little ongoing maintenance it requires compared to an LLC or Corporation. Here's what you need to stay on top of.
Pay estimated taxes to the IRS and Michigan Treasury four times per year: April 15, June 15, September 15, and January 15. Missing these payments results in underpayment penalties at tax time.
File Schedule C with your personal Form 1040 each year by April 15. Schedule C reports your business income and expenses. Your net profit is subject to both income tax and self-employment tax (15.3%).
If you filed an Assumed Name Certificate (DBA) with your county clerk, it must be renewed every 5 years. Check with your county clerk for the renewal process and fee — typically around $10.
Keep all business income and expenses clearly documented and separate from personal finances. Use a dedicated business bank account and accounting software like Wave (free) or QuickBooks to track everything throughout the year.
Follow these steps and you'll be operating legally and smartly as a sole proprietor in Michigan. Ready to learn about taxes or explore other business structures?