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Why a company must have a bank account

Under article 26 of Nghị định 181/2025/NĐ-CP (Decree 181/2025) and point c of clause 1 of article 9 of Nghị định 320/2025/NĐ-CP (Decree 320/2025), purchases of goods or services worth 5 million đồng or more, including VAT, must be backed by a non-cash payment document before input thuế GTGT (value added tax) can be deducted and the cost allowed for thuế TNDN (corporate income tax). Paying cash into the seller's account does not count as a non-cash payment.

Since 1 January 2026 enterprises no longer pay the thuế môn bài (the annual business licence fee): it has been abolished. A company bank account is also the compulsory channel for paying tax electronically: VAT, corporate income tax and withheld personal income tax are all paid through it, linked to the company's chữ ký số (digital signature token).

Beyond the legal obligation, a separate account keeps the owner's personal assets apart from the company's, which is something partners and banks look at when the company later seeks finance.

What the account opening file contains

Each bank has its own forms and a few requirements of its own, but the basic file usually consists of:

- The Giấy chứng nhận đăng ký doanh nghiệp (the enterprise registration certificate), original or a valid certified copy. - The CCCD (the Vietnamese citizen identity card) or passport of the legal representative, and of the chief accountant if one has been appointed. - The Điều lệ công ty (the company charter), a copy sealed across the pages. - The company seal, for signing and sealing the bank's forms. - The decisions appointing the director and the chief accountant, where applicable. - The bank's own account opening form.

Filling in the form incorrectly is a common reason for a file being returned, which means starting again and waiting longer.

What to do with the tax authority after opening the account

Under point b of clause 2 of article 40 of Luật Quản lý thuế 108/2025/QH15 (the Tax Administration Law), banks periodically report payment account numbers to the tax authority by tax code when an account is opened or closed. On the company's side, what has to be done is to register to pay tax electronically from the account; when its tax registration details change, it notifies them together with the change to its enterprise registration (point a of clause 1 of article 9 of Thông tư 90/2026/TT-BTC).

How Tư Vấn Sao Việt helps

Tư Vấn Sao Việt advises enterprises in Gia Lai on choosing a bank to suit the business (import and export, finance, or low maintenance charges), and helps you pick a memorable account number.

Bank staff can come to your office for signing, so that you do not have to travel repeatedly. Once the account is open, Sao Việt helps notify the account number to the tax authority and connects the account to the accounting and e-invoice software you use.

Call 0917 097 906 (also on Zalo) for advice specific to your line of business.

The process

1. Prepare the file Gather the business licence, the representative's CCCD, the company charter, the seal, and the appointment decisions where applicable.
2. Choose a bank and fill in the form Choose a bank that suits the business and complete that bank's own account opening form.
3. Sign and activate the account Sign with the bank, at your office if the bank allows it. The account is activated once the file is in order.
4. Notify the account to the tax authority Register to pay tax electronically from the account; the bank reports the account number to the tax authority under the company's tax code.