From July 1, 2026, the 2025 Law on Tax Administration officially takes effect, supplementing regulations on cases where tax authorities are allowed to set the tax amount to be paid. Accordingly, business households may be taxed if they fall into one of the 8 cases prescribed by law.
According to Clause 2, Article 24 of the 2025 Law on Tax Administration, business households may be determined by the tax authority the amount of tax payable in the following 8 cases:
First, not registering for tax; not declaring tax; not submitting supplementary tax dossiers as required by the tax authority or declaring tax incompletely, truthfully, and accurately on the basis for tax calculation.
Second, tax declaration dossiers have been submitted but the factors serving as a basis for determining the tax base have not been determined, or the factors serving as a basis for determining the tax base have been determined but the amount of tax payable cannot be calculated themselves.
Third, not reflecting or not fully, truthfully, and accurately reflecting the data in the accounting book to determine tax obligations.
Fourth, do not present accounting books, invoices, documents and necessary documents related to determining the amount of tax payable within the prescribed time limit.
Fifth, not complying with the tax inspection decision as prescribed.
Sixth, buying, selling, exchanging and accounting, tax declaration according to the value of goods and services not in accordance with the actual payment price or not according to the normal transaction value in the market reduces tax payment obligations.
Seventh, buying and exchanging goods using illegal invoices and documents, using illegal invoices and documents where goods and services are real according to the determination of competent authorities and have been declared taxable revenue.
Eighth, using documents that do not accurately reflect the nature of the transaction or the actual transaction value to reduce tax obligations; carrying out transactions that are not consistent with the economic nature for the purpose of reducing tax obligations.
Thus, from July 1, 2026, business households in one of the above cases may be determined by the tax authority the tax amount to be paid according to the provisions of Clause 2, Article 24 of the 2025 Law on Tax Administration.
