CPA-Written • Accurate • Easy to Follow
This guide is written specifically for U.S. domestic founders — individuals who live in the United States or operate their business physically within the U.S.
It provides a clear, practical, and legally accurate step-by-step roadmap for forming a U.S. company.
Starting a business is one of the most rewarding decisions you can make. A properly formed entity protects your personal assets, builds business credibility, and gives you access to banking, payment processors, and tax benefits. While the process may feel overwhelming, it becomes simple with the right guidance.
As a CPA who works with U.S. small business owners daily, the following roadmap reflects real client scenarios and current 2025 state and federal requirements.
Before You Start: What You Need
Have these items ready to make the process faster:
- Full legal name
- Home or business address
- Preferred company name (plus 1–2 backups)
- Business purpose (short description)
- Social Security Number (for EIN online)
- Phone number + email
- Your home state of operation
Who This Guide Is For
This guide is ideal for:
- U.S. residents running or starting a business
- Service providers, freelancers, agencies
- Online sellers operating inside the U.S.
- Single-member or multi-member LLCs
- Partnerships forming their first entity
- Founders considering S-Corp election
⭐ Step-by-Step Guide to Registering a Company in the U.S.
Step 1: Choose Your Business Structure
Most domestic founders choose between an LLC or a Corporation.
LLC (Limited Liability Company)
Best for:
- Service providers
- Small online businesses
- Consultants, agencies, freelancers
- Most small U.S. businesses
Advantages:
- Easy to set up
- Fewer annual requirements
- Personal asset protection
- Default pass-through taxation
- Can elect S-Corp later
Corporation (C-Corp or S-Corp)
C-Corp:
- Ideal for startups raising investment
- Allows issuing shares
- More formal structure
S-Corp:
- Only for U.S. residents with SSNs
- Helps reduce self-employment taxes
- Requires payroll + stricter compliance
✔ Comparison Table
| Provision | LLC | Corporation |
| Easy setup | ✔ | ✖ |
| Flexible taxation | ✔ | ✔ |
| Low maintenance | ✔ | ✖ |
| Attracts investors | ✖ | ✔ |
| Eligible for S-Corp | ✔ | ✔ |
✔ Step 1 Checklist
- Want a simple setup?
- Raising investment?
- Interested in S-Corp later?
Step 2: Choose Your State
The correct state is almost always your home state — where you physically perform your business.
Your Home State
Required if you:
- Live in the state
- Perform services there
- Have an office/home office
- Hire employees
Delaware
Benefits:
- Investor-friendly laws
- Great for Corporations
- Common for startups
Wyoming
Benefits:
- Low fees
- Simple compliance
- Strong privacy
Florida / Texas
Benefits:
- Strong local economies
- Favorable tax environments
✔ CPA Warning
Registering in another state (e.g., WY or DE) does not avoid your home state rules.
You will need to register again as a foreign LLC, paying double fees.
✔ Step 2 Checklist
- Do you operate in your home state?
- Do you need investor-friendly laws?
- Do you want lower fees?
Step 3: Choose a Business Name
Your name must be:
- Unique
- State-compliant (“LLC” or “Inc.” included)
- Not infringing on another business or trademark
Search name availability on your state’s Secretary of State website.
✔ Step 3 Checklist
- Name available?
- Domain available?
- Social media handles available?
Step 4: Appoint a Registered Agent
A Registered Agent accepts legal correspondence on your behalf.
State Requirements Summary
| State | Owner Can Be RA? | Notes |
| DE | No | Must use professional RA |
| WY | Yes | Must have WY address |
| FL | Yes | Must have FL address |
| TX | Yes | Must have TX address |
| NY | No (DOS acts as RA) | Many businesses use professional RA |
A professional RA provides privacy and reliability.
✔ Step 4 Checklist
- Choose self or professional RA
- Confirm address requirements
- Ensure reliable mail handling
Step 5: File Your Formation Documents
To officially form your business, submit:
LLC
- Articles of Organization
- Operating Agreement (internal but important)
Corporation
- Articles of Incorporation
- Bylaws
- Initial board/shareholder setup
Approval typically takes 1–3 business days.
✔ Step 5 Checklist
- Articles filed
- State approval received
- Operating Agreement prepared
- Documents stored safely
⭐ Do You Need an Attorney? (Highly Recommended)
This is one of the most important decisions in formation.
Only attorneys can draft or customize legally binding agreements.
CPAs cannot draft legal documents — we can only provide general guidance or templates.
When You Should Hire an Attorney:
- Multi-member LLC
- Corporation with shareholders
- Profit-split rules needed
- Buyout or exit terms needed
- IP ownership involved
- You want long-term legal protection
Attorney Fee Range (2025)
| Service | Typical Cost |
| Custom Operating Agreement | $1,500–$2,500 |
| Corporation formation + bylaws | $2,000–$4,000 |
| Multi-owner OA | $2,000–$5,000 |
| Shareholder/Partnership Agreement | $2,500–$7,500+ |
✔ CPA Note
Single-member LLCs may not require the services of an attorney.
Multi-owner businesses absolutely should.
Step 6: Apply for Your EIN
If you have an SSN, apply online for instant approval.
EIN is required for:
- Banking
- Taxes
- Payroll
- Stripe/PayPal/Shopify
- Business licenses
✔ Step 6 Checklist
- EIN downloaded
- EIN saved in business records
Step 7: Open a Business Bank Account
Banks usually require:
- Articles of Organization
- EIN letter
- Operating Agreement
- Government ID
- Proof of address
Traditional banks: Chase, Wells Fargo, BOA
Online: Relay, Mercury
✔ What to Bring
- ID
- EIN letter
- Articles
- Operating Agreement
- Address proof
Step 8: Maintain Ongoing Compliance
To keep your company active:
State Requirements
- Annual report
- Franchise tax (if applicable)
- Registered Agent renewal
Federal Requirements
- Annual tax filing
- Quarterly estimated taxes (if applicable)
- Payroll filings (if S-Corp)
✔ Step 8 Checklist
- Compliance calendar saved
- Accounting software running
- CPA engaged
Common Mistakes (From a CPA’s Experience)
❌ Forming in the wrong state
❌ No Operating Agreement
❌ Mixing personal & business funds
❌ Missing annual report
❌ Electing S-Corp too early
❌ Not hiring an attorney for multi-owner LLCs
These lead to expensive fixes later.
Budget: What You Should Expect to Spend
| Item | Cost |
| State filing fee | $50–$300 |
| Registered Agent | $100–$150/year |
| Attorney OA (recommended for partners) | $1,500–$5,000 |
| EIN | Free |
| Bookkeeping software | $0–$30/month |
| Annual report | $50–$200 |
Timeline: How Long It Takes
- Formation approval: 1–3 days
- EIN: Instant
- Bank account: 1–7 days
- Full setup: 3–10 days
Real-Life Scenarios (Which One Are You?)
Scenario A — Solo Freelancer Becoming Legit
Recommended:
- LLC
- EIN
- Operating Agreement
- Business bank account
Scenario B — Two Partners Starting a Business
Recommended:
- LLC or Corp
- Attorney-drafted Operating Agreement
- Document capital contributions
- Bank account + bookkeeping setup
Scenario C — Growing Service Business
Recommended:
- Evaluate S-Corp at $40k–60k profit
- Payroll system
- Quarterly tax planning
⭐ Practical Q&A for U.S. Domestic Business Owners (CPA-Verified)
Do I need an LLC if I’m just starting out?
If you are doing business — charging clients, advertising services, or handling customer work — an LLC is recommended for protection and credibility.
Should I form in my home state or choose Wyoming/Delaware?
Form in your home state.
Out-of-state formation usually causes double registration and fees.
When should I elect S-Corp status?
When your net profit reaches $40,000–$60,000 per year.
Do I need an attorney to form my LLC?
Single-member LLC: optional
Multi-member LLC: strongly recommended
Only attorneys can draft custom legal agreements.
Can I use my home address as my business address?
Yes, except in a few restricted industries.
Use an RA or virtual mailbox for privacy.
How long does formation take?
LLC approval: 1–3 days
EIN: instant
Bank account: 1–7 days
What documents do banks need?
- Articles
- EIN letter
- Operating Agreement
- ID
- Proof of address
Can I deduct expenses I paid before forming the LLC?
Yes — these count as startup expenses.
Up to $5,000 deductible in the first year.
How often should I meet with my CPA?
Minimum: yearly
Better: quarterly
Best: monthly (fast-growing businesses)
What’s the #1 mistake new founders make?
Mixing personal and business funds.
Always use a separate business bank account.
Quick Takeaways
- Form in your home state
- Consider S-Corp at $40k–60k profit
- Hire an attorney for multi-owner LLCs
- Keep clean, separate finances
- Stay compliant with annual filings
Need help choosing the right structure or state for your business?
If you’re already running a business in the U.S. or planning to form an LLC or corporation but still have questions—such as which state to choose, whether S-Corp status makes sense, or how to stay compliant—it can be helpful to talk to a professional.
Our CPA team works with U.S. domestic business owners on entity selection, tax planning, and ongoing compliance.
If you’d like Form a business and you need a personalized guidance, you can contact Ivy Tax and Business Inc. through our website, and we’ll review your situation in more detail.
Final Disclaimer
This guide is for educational purposes only and does not constitute legal, tax, or professional advice. Please consult a licensed CPA or attorney for personalized guidance.