How to Legally Set Up Your Contracting Business

You’ve got the skills. You’ve got the equipment. You’re ready to start making money. But here’s the thing most new contractors skip — setting up the business the right way before the first job.

Skipping this step doesn’t just create legal risk. It costs you money in taxes, shuts you out of commercial contracts, and can put everything you’re building at risk the moment something goes wrong on a job.

This guide walks you through every step of legally forming your contracting business — from choosing your business structure to opening your first business bank account. No fluff, no filler. Just the steps you need to take and the order to take them.

Step 1: Choose Your Business Structure

This is the most important decision you’ll make in this entire process. Your business structure determines how you’re taxed, whether your personal assets are protected, and how legitimate you look to clients and suppliers.

For most new exterior home service contractors, the choice comes down to two options.

Sole Proprietorship

The default. If you start working without forming anything, you’re automatically a sole proprietor. There’s no paperwork, no filing fees, and no separation between you and the business.

The problem? You are the business. If a client sues you, they’re suing you personally. Your truck, your savings, your house — all fair game. Most contractors outgrow this structure fast.

LLC (Limited Liability Company)

This is where most serious contractors start. An LLC puts a legal wall between you and the business. If something goes wrong on a job and a client comes after you, they’re coming after the LLC — not your personal assets.

LLCs are also flexible on taxes, easy to set up, and look professional to commercial clients who require proof of business formation before signing contracts.

→ LLC vs. Sole Proprietorship for Contractors

Step 2: File Your LLC Formation Documents

Once you’ve decided on an LLC, it’s time to make it official. The process varies slightly by state, but the core steps are the same everywhere.

1. Choose your state of formation. For most contractors, this is the state where you’ll be doing business. Don’t overthink it.
2. Pick a business name. Make sure it’s not already taken in your state. Most state websites have a free name search tool.
3. File your Articles of Organization with your state’s Secretary of State office. This is the official document that creates your LLC.
4. Pay the filing fee. Expect $50 to $500 depending on your state.
5. Set up a registered agent. This is the person or service that receives legal documents on behalf of your LLC.

→ How to Form an LLC for Your Contracting Business (State-by-State)
→ Registered Agent: Do You Need One?

Step 3: Get Your EIN (Employer Identification Number)

Your EIN is like a Social Security number for your business. You’ll need it to open a business bank account, pay taxes, hire employees, and file a ton of paperwork down the road.

The good news? It’s free and takes about 10 minutes on the IRS website. There is zero reason to pay a third-party service to do this for you.

• Go to IRS.gov and search “Apply for EIN online”
• Complete the online application — takes about 10 minutes
• Receive your EIN immediately upon completion
• Save it somewhere safe — you’ll need it constantly

→ How to Get an EIN in 10 Minutes

Step 4: Create an Operating Agreement

An operating agreement is an internal document that spells out how your LLC is run. Even if you’re a solo operator, you need one.

Some states require it. Even where it’s not required, having one reinforces the separation between you and your business — which matters if you ever end up in a legal dispute. It covers who owns the business, how profits are distributed, and what happens if the business dissolves.

→ Operating Agreement for Single-Member LLCs

Step 5: Register with Your City and County

Forming an LLC with your state isn’t the same as registering your business locally. Many cities and counties require a separate business license or registration, regardless of your state LLC status.

This step trips up a lot of new contractors. They form the LLC, think they’re done, and find out six months later they needed a local business license to legally operate.

• Check your city’s website for business license requirements
• Check your county’s website separately — requirements can differ
• Budget $25 to $100 for local registration fees
• Renew annually — most local licenses expire every year

→ How to Register Your Business with Your City and County
→ Do You Need a DBA? When and How to File

Step 6: Open a Business Bank Account

Here’s where a lot of bootstrappers make a costly mistake — they run everything through their personal account. Don’t do this.

Mixing personal and business finances destroys the liability protection your LLC provides. It also makes bookkeeping a nightmare and raises red flags if you’re ever audited.

Opening a business bank account doesn’t require a minimum deposit. Several online banks offer free business checking with no monthly fees — perfect for a new operation.

→ How to Open a Business Bank Account with $0

Step 7: Consider an S-Corp Election (Once You’re Profitable)

This isn’t a day-one move — but it’s worth knowing about from the start so you can plan for it.

When your LLC starts generating real profit — generally $40,000 to $50,000 or more in net income — electing S-Corp tax status can save you thousands of dollars per year in self-employment taxes. You pay yourself a reasonable salary and take the rest as distributions. You only pay self-employment tax on the salary portion, not the distributions.

→ S-Corp Election for Contractors: When It Saves You Money

Your Business Formation Checklist at a Glance

Here’s every step in order. Check them off one by one.

Common Mistakes New Contractors Make

Avoid these — they’re the most expensive lessons in the business.

Operating as a sole prop too long. The moment you’re doing paid work, you have liability exposure. Form the LLC first.

Using your personal bank account. This single mistake can void your LLC’s liability protection. Separate accounts from day one.

Skipping local registration. State LLC formation and local business licensing are two different things. Do both.

Paying for things that are free. Your EIN is free from the IRS. Articles of Organization are inexpensive to file yourself. Don’t pay a service $300 to do $50 worth of work.

Not getting an operating agreement. Even for solo operators, this document protects your LLC status and clarifies how the business runs.

What Comes Next

Formation is just the beginning. Once your business is legally set up, the next steps are:

• Get the right business insurance — general liability at minimum
• Research licensing requirements for your trade and state
• Set up your pricing and start bidding jobs
• Build a simple marketing presence starting with Google Business Profile

→ Contractor Insurance Explained
→ Contractor Licensing and Permits Guide
→ How to Price, Bid, and Estimate Contracting Jobs