Change of tax registration information

🏢 Businesses 🏪 Household businesses

Information printed on the registration certificate is changed at the business registration authority; the tax authority receives it through data linkage. Information that exists only in tax registration is reported directly to the tax authority. After changing, you must also update e-invoices, digital signature, e-tax account and notify business partners.

TaxDatum helps you prepare and does not file on your behalf. TaxDatum is run by a private company, not the tax authority; filing is done on the official channel named under Where to file.

Machine-translated from the Vietnamese original; under editorial review.

0/6 steps done 0/8 documents ready 5 common mistakes 6 explainers (in Vietnamese)

Who needs to do this

Enterprise changes name, head office address, legal representative, business line, capital or business form.
Enterprise changes information reported only to the tax authority: person in charge of accounting, email and phone number for notifications, tax calculation method and other tax registration information.
Household business changes business location, business line or changes proprietor.

When

When actual information differs from registered information — do not wait until annual finalization.
Before relocating the head office to an area under another tax authority's jurisdiction: settle obligations at the original location first.

Steps in order

1Determine which category the changed information belongs toInformation printed on the enterprise registration certificate (name, head office, legal representative, business line, capital) is changed at the business registration authority. Information that exists only in tax registration (accountant, email, notification phone number, etc.) is reported as a change to the tax authority.
2Review obligations before making changesCheck the e-tax account: missing tax returns, outstanding amounts, pending invoice errors. When relocating to another jurisdiction, you typically must settle obligations with the tax authority at the original location — outstanding arrears may result in documents being retained.
3Make internal decision and submit documents to the correct placeOwner, members' council or board of directors decides according to the charter; the legal representative or authorized person submits documents at the location corresponding to the information category.
4Track when information is updatedA few days after acceptance, check again on the taxpayer information lookup page. If the e-tax system has not yet displayed the new information, ask the managing tax office; do not guess.
5Update dependent itemsTax registration information used for e-invoice, information on digital signature, email and phone number in the e-tax account, bank records, contract templates.
6Notify business partnersSend new information to customers and suppliers so that input and output invoices show the correct name and address from the date of change.

What to prepare

Described by content; the exact form is taken from the system when filing. Tick what you already have.

Decision or minutes from the owner, members' council or board of directors regarding the content of the change
New information content, written exactly as it will appear on documents (name, full address according to new administrative boundaries)
Personal legal documents of the new legal representative, if the legal representative is being changed
Power of attorney for the person submitting documents, if not the legal representative
Enterprise digital signature and access rights to the e-tax account
List of tax returns and outstanding amounts verified on the e-tax account
List of items to update after the change: e-invoices, digital signature, bank, contracts, business partners
For household business: household business registration certificate, personal identification number of the proprietor (including the new proprietor if proprietor is being changed)

Where to file

Information on the enterprise registration certificate: Business registration authority, via the National Business Registration Portal; the tax authority receives it through data linkage.
Information belonging only to tax registration: E-tax system, submit to the managing tax office.
Household business: Household business registration authority at the location of the business and the grassroots tax office managing the area, according to current guidance.
Information on e-invoices: E-invoice portal, usually through the e-invoice solution provider.

Find the official channel by name (the e-tax system, the tax mobile app, the e-invoice portal, the National Business Registration Portal) and check that the domain belongs to a government body before signing in. Never give your password or digital signature to strangers.

Common mistakes

Changed on the registration certificate and considered it done, forgetting that e-invoice registration and digital signature still carry old information.
Relocating the head office to another jurisdiction while still having missing tax returns or outstanding amounts at the original location.
Changing the legal representative but the former representative still holds the digital signature and e-tax account password.
Changing the accountant without updating the email address or phone number for tax notifications — tax authority notices continue to be sent to the former employee.
Not notifying customers and suppliers: input invoices continue to show the old company name and address.

Explainer articles

6 explainer articles on this procedure on CongThue.com (in Vietnamese).

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Related procedures

Temporary business suspension Reactivation of the tax code after status 06 Initial tax registration for new enterprise Authorization for PIT finalization

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Questions and answers

When changing the registered office address, should the application be filed with the tax authority or the business registration authority?

The registered office address printed on the enterprise registration certificate should be filed with the business registration authority; the tax authority receives it through inter-agency notification. If the new address falls under a different tax authority's jurisdiction, settle and close obligations with the tax authority of the previous location to prevent the file from being retained.

When changing the accountant or the phone number for tax notifications, is it necessary to go to the business registration authority?

No. This information belongs only to tax registration; report the change to the tax authority through the e-tax system. The email address in the e-tax account should also be updated at the same time.

When changing the company name, does the tax code need to be changed?

No. The tax code remains unchanged when the name, address, or legal representative is changed. What must be updated is the information on e-invoices, digital signatures, contracts, and partner information used to issue invoices for the enterprise.

Reference content, written from general rules and possibly not yet updated for new documents; it does not give form numbers, penalty amounts or processing times. TaxDatum.com is run by a private company and is not a government portal. Before applying it to a real case, ask the managing tax office or a qualified professional.