Determining the type of company: There are several types of companies in Japan, including Kabushiki Kaisha (KK) and Godo Kaisha (GK). The type of company you choose will depend on various factors, such as the number of shareholders, the amount of capital, and liability.

Finding a legal representative: Companies in Japan must have a legal representative, who is a Japanese national or a foreigner with a resident visa.

Registering the company name: The company name must be registered with the Legal Affairs Bureau.

Drafting articles of incorporation: The articles of incorporation outline the company's purpose, share capital, shareholder details, and other important information.

Establishing a bank account: A bank account must be established to deposit the share capital and other necessary funds.

Obtaining a seal: In Japan, a seal, or hanko, is used instead of a signature for official documents. The company must obtain a seal for the legal representative.

Registering with authorities: The company must register with various authorities, including the Legal Affairs Bureau, Tax Office, Labor Standards Inspection Office, and Social Insurance Agency.

Obtaining business licenses: Depending on the type of business, certain licenses may be required.

Renting an office: A physical address must be provided for the company.

Registering for social insurance: The company must register for social insurance for its employees.

The specific procedures and requirements for setting up a company in Japan may vary depending on the type of company and other factors. It is recommended to seek the advice of a lawyer or other professional familiar with the process.

To register as a resident in Japan, a 4-month business visa is required, and a seal registration is required along with the resident registration.
The company will then obtain a certificate of seal registration and go through the procedures for incorporation.
If the company is established without registering as a resident in Japan, complicated procedures are required, such as obtaining a signature certificate from the embassy of the applicant's home country in Japan.

In order to establish a joint-stock company(KK), it is necessary to have the articles of incorporation certified by a notary public office, and the tax to be paid will be high. In addition, it is necessary to deposit it into a Japanese bank account as proof of capital.
On the other hand, the above procedures are not required for the establishment of a limited liability company, and the receipt prepared by the representative is sufficient as proof of capital.
Japanese banks are very strict about international remittances to prevent money laundering, and it is necessary to entrust the receipt of international remittances to a Japanese person or a friend who already has a bank account.
However, international remittance is not required when establishing a limited liability company(GK).

When establishing a company, it is necessary to determine the location of the company's head office. For a real estate rental contract in Japan, it is necessary to first confirm whether the company can be registered. And as a business property, it is necessary to state that it can be used for business.
Also, if the company's head office and home are located in the same place, the structure and location of the rooms are important, and please be aware that not all buildings meet the requirements for a business visa.
Also, the business building and land contract must be signed in the name of the company, not in the name of the individual.

Once the company is established, it is necessary to notify the local tax office, prefectural tax office, and municipal office of the establishment and start of business.
This is also a necessary document for business visa application.

Apply for and obtain the necessary business license after incorporation.
In the case of automobile trade, a secondhand dealer's license is required, in the case of a restaurant, a food business license is required, and in the case of a hotel, a hotel business license is required.
When trading, the company will be issued a corporate number, so there is no need to re-register as an exporter.

Under Japanese law, all persons employed by a company, including officers, are obligated to enroll in social insurance.
When renewing a business visa, whether or not you are enrolled will be investigated, and even if you are not enrolled, it is possible to extend your visa, but there is a high possibility that your period of stay will be shortened.