
How to Apply for US Company Tax Registration & Notarization?

American companies often need to provide proof of their tax registration and notarization for various purposes, such as opening bank accounts, applying for business licenses, or entering into contracts. This process can vary depending on the state in which the company is registered. Below is a detailed guide on how to obtain these documents and ensure they are properly notarized.
To start, every U.S. company must register with the Internal Revenue Service IRS to receive a unique Employer Identification Number EIN. The EIN is essentially the Social Security number for businesses and is used for tax reporting purposes. To apply for an EIN, a company can visit the IRS website and complete Form SS-4, which requires basic information about the business, including its legal name, address, and type of entity. Once submitted, the IRS will typically issue the EIN within a few weeks. After receiving the EIN, the company should print out the confirmation letter from the IRS website as proof of its tax registration.
In addition to the IRS, some states also require companies to register for state-specific tax identification numbers. For instance, California businesses must register with the California Department of Tax and Fee Administration CDTFA to obtain a seller's permit if they sell tangible goods. The process involves filling out an online application and paying a fee. Upon approval, the state will issue a certificate that serves as proof of state-level tax registration.
Once the necessary tax registration documents have been obtained, the next step is to have them notarized. Notarization ensures that the document is authentic and legally binding. To notarize a document, the business owner or authorized representative must visit a notary public. Most banks, law firms, and government offices have notaries available. During the notarization process, the signer must present valid identification, such as a driver's license or passport, and sign the document in the presence of the notary. The notary will then stamp and sign the document to confirm its validity.
For international use, notarized documents may also need to be apostilled. The Apostille Convention is an international treaty that simplifies the authentication of documents for use across borders. If a U.S. company needs to use its tax registration documents abroad, it must first have them notarized and then obtain an apostille from the Secretary of State's office in the state where the document was issued. The apostille certifies the authenticity of the notary's signature and seal.
Recent news highlights the importance of proper documentation for businesses. In a report by the Wall Street Journal, many small businesses faced challenges during the pandemic due to insufficient paperwork. Some were unable to access emergency loans because they lacked timely tax registration proofs. This underscores the necessity of maintaining accurate and up-to-date records.
In conclusion, obtaining proof of tax registration and notarizing it is a straightforward process for American companies. By following the steps outlined above-applying for an EIN through the IRS, registering with state authorities if necessary, and having documents notarized-a business can ensure compliance with legal requirements. Proper documentation not only facilitates day-to-day operations but also strengthens the credibility of the company in both domestic and international contexts.
Still have questions after reading this? 26,800+ users have contacted us. Please fill in and submit the following information to get support.

Previous Article
Customer Reviews
Small *** Table
December 12, 2024The experience was very good. I was still struggling to compare it with other companies. I went to the site a few days ago and wanted to implement it as soon as possible. I didn't expect that everything exceeded my expectations. The company is very large, with several hundred square meters. The employees are also dedicated and responsible. There is also a wall of certificates. I placed an order on the spot. It turned out that I did not make a wrong choice. The company's service attitude is very good and professional. The person who contacted me explained various things in detail in advance. After placing the order, the follow-up was also very timely, and they took the initiative to report the progress to me. In short, I am very satisfied and recommend this company!
Lin *** e
December 18, 2024When I first consulted customer service, they recommended an agent to me. They were very professional and patient and provided excellent service. They answered my questions as they came in. This 2-to-1 service model is very thoughtful. I had a lot of questions that I didn’t understand, and it’s not easy to register a company in Hong Kong. Fortunately, I have you.
t *** 7
December 19, 2024I originally thought that they only did mainland business, but I didn’t expect that they had been doing Hong Kong business and were doing very well. After the on-site interview, I decided to ask them to arrange the registration of my Hong Kong company. They helped me complete it very quickly and provided all the necessary information. The efficiency was awesome. It turns out that professional things should be done by professionals.👍
b *** 5
December 16, 2024In order to register a company in Hong Kong, I compared many platforms and stores and finally chose this store. The merchant said that they have been operating offline for more than 10 years and are indeed an old team of corporate services. The efficiency is first-class, and the customer service is also very professional.