Register a US company, find a random service provider online, and get an EIN in 3 days if you're fast.

But the moment many sellers get their EIN, they realize -
Banks can not open an account, the platform into the refused, tax returns do not know how to report, the company selected the wrong type to start over ......

The problem is not the registration itself, but the mines that are laid at the registration stage. Today, the 4 most common pitfalls are broken down to see if you have stepped on them.

If you're thinking about incorporating a U.S. company, or if you've already done so but aren't sure if you're stepping on the wrong side of the line, contact us today - and we'll help you do a thorough checkup at no charge.

📞 Cell phone: 18676749275 ｜ 💬 WeChat: qcygscszk

01 Pit 1: Choosing the Wrong State of Incorporation Doubles Tax Costs

This is the easiest and most expensive pit to step into.
When many sellers register a U.S. company, the service provider directly recommends Wyoming (WY) or Delaware (DE) - the reason is ”no state income tax, low registration fee”.
But state of incorporation ≠ state of operation. Your tax obligations depend on where you operate, not where you are incorporated.

Take a look at a real-life scenario:

Registered in Wyoming, but triggered California Nexus because of FBA inventory and sales, and as a result, not a single penny of California tax. And because they didn't plan for it when they registered, they didn't do any filing in California and it's all overdue.

The right logic for picking states:

State selection is not about which state is the ”cheapest”, it's about which state has the lowest overall cost for your business.

If you're not sure which state to choose for your business, or already have a corporation but are concerned about triggering multi-state tax obligations, contact us - for a free state tax evaluation.

📞 Cell phone: 18676749275 ｜ 💬 WeChat: qcygscszk

02 Pit 2: No passport, EIN can only fax application, review 2-3 weeks

Once a U.S. company is registered, it needs to apply for an Employer Identification Number (EIN) from the IRS, which is necessary to open bank accounts, file taxes, and hire employees.
If you do not have a U.S. Social Security Number (SSN) or Individual Tax Identification Number (ITIN), EIN applications can only be submitted by fax.

What does 2-3 weeks mean?It means that your company is registered, but you can't open a bank account, onboard a platform, or collect payments for 2-3 weeks - the company is registered for nothing for this period of time.

What's even more troublesome is that the IRS won't notify you if the fax application is filled out incorrectly, it will just be silently rejected and you'll have to go back in line for another 2-3 weeks.

The right approach:

• Confirm that the applicant has a valid passport before registration
• If you don't have an SSN/ITIN, plan ahead for faxing applications
• When completing the SS-4 form, check each item to ensure that it is passed in a single pass
• Enterprise Finance helps you pre-qualify your SS-4 form at the registration stage to avoid delays due to errors in filling out the form.

03 Pit three: registered address is not compliant, the bank account is directly rejected

A U.S. corporation must have a legal registered address (Registered Agent Address). This address serves the purpose of:

1. Receive official correspondence from the IRS and state governments
2. Receipt of legal documents (e.g., lawsuit summonses)
3. Address verification for bank account opening

Many sellers use the following types of ”addresses” to save money:

Registered address is not just ”fill in an address”, it directly affects bank account opening, platform stationing, government compliance.

The right approach:

• Use of compliant business address services (Registered Agent + business address)
• The address must be able to receive mail and be answered
• If your business requires a bank account with Mercury/Brex etc., the address must be a bank-approved business address
• Enterprise Caiying provides compliant U.S. business address services to meet bank and government review requirements

 If you have registered a U.S. company but the address is not compliant, or want to open a bank account such as Mercury but have been rejected, contact us - we will help you to change the compliant address and reapply for the account.

📞 Cell phone: 18676749275 ｜ 💬 WeChat: qcygscszk

04 Pit 4: Choosing the wrong type of company and filing a completely different tax return

There are several common types of U.S. corporations, each with completely different tax filing methods, rates, and compliance requirements:

Most common mistake:

• ❌ chose LLC when it should have chosen S-Corp → overpayment of self-employment tax (15.3%)
• ❌ chose C-Corp when they should have chosen LLC → double taxation (21% at corporate level + individual tax at distribution level)
• ❌ Registered LLC but want to do S-Corp tax election → need to file additional Form 2553, can't elect if you miss deadline

The right approach:

• Clarify your business size, tax filing needs, and financing plan before registering
• If unsure, go with LLC first (highest flexibility, can subsequently convert to S-Corp)
• Enterprise Finance will help you do a company type assessment before registration to ensure that you choose the right one.

05 Already stepped in a hole, can it be remedied?

It can be remedied, but each change takes time and costs money. Doing it right at the registration stage is the least expensive.

06 How Enterprise Finance can help you avoid these pitfalls

The registration of a U.S. company is not a matter of ”filling out the form and submitting the information”, but rather, it is a matter of taking into account all the subsequent aspects before the registration:

• ① Pre-registration evaluationInstead of getting the information and opening the note, we'll go over it for you first: which state does your business fit into? Which company type to choose? Does the applicant have an SSN/ITIN? - Eliminate the problems before you register.
• ② Registered State + Company Type RecommendationAccording to your business model, platform layout, distribution of FBA warehouses, capital planning, financing needs, recommend the program with the lowest overall cost. Not simply recommend ”register in Wyoming”, but to help you see the whole picture.
• ③ EIN Application for Pre-approvalHelp you pre-qualify your SS-4 form to ensure a one-time pass and avoid 2-3 week delays due to incorrect completion.
• ④ Compliant business addressProvides US compliant business address services to meet bank account opening and government review requirements. Not a virtual mailbox, a real business address recognized by the bank.
• ⑤ Bank account opening planningRecommend the right bank and account type based on your identity documents, fund size, and platform needs. Covering multiple paths such as Mercury/Brex/Wise Business.
• ⑥ Full life-cycle services after registrationEIN→Bank account opening→Quarterly accounting→Annual report→State tax→Federal tax→Audit, we are able to take over all the links, and there will not be a situation of ”not being able to find someone to do the follow-up after the registration”.

Why choose Enterprise Finance?

🔹 1. A team of experts to guide you throughout the process

Our team of nearly 400 professionals consists of senior lawyers, accountants, tax accountants and cross-border business consultants, who are well-versed in the Middle East, Europe, the U.S. and other mainstream markets, and are well versed in financial and tax regulations. We provide “one-to-one” customized solutions from NOON qualification assessment to VAT registration.

🔹 2. digitally empowered, smart and efficient

The company has spent 20 million RMB to develop its own digital system “YiChuangBao” to standardize the service process and visualize the progress, so that individual sellers can also enjoy the enterprise-level service experience.

🔹 3. Eco-links, extra value

It connects over 500,000+ entrepreneurs' resources, regularly organizes cross-border salons and seminars on finance and tax law, and helps SOLO sellers to link supply chain, logistics and other resources.

🔹 4. Full-cycle accompaniment for worry-free sailing

Our services go beyond “successful entry”. We provide full life-cycle support from preliminary consulting, mid-term implementation, to post-financial and tax declaration and annual audit maintenance.

Registering a U.S. company is quick, but registering it right is what makes it work.

If you're considering incorporating a U.S. company, or if you've already done so but aren't sure if you've stepped into any of these potholes, feel free to contact us for a free checkup.