Regulations on Corporate Accounting Documents under Circular 99/2025/TT-BTC – Effective January 1, 2026

On October 27, 2025, the Ministry of Finance issued Circular 99/2025/TT-BTC guiding the Corporate Accounting Regime, replacing Circular 200/2014/TT-BTC. This Circular introduces new regulations on accounting documents, the system of forms, and the procedures for preparation, signing, and control of accounting documents.

Enterprises may amend or supplement accounting document templates

Under Circular 99/2025/TT-BTC, accounting documents must comply with the Accounting Law and related regulations. Enterprises may refer to the system of forms issued together with the Circular for implementation.

Notably, enterprises are allowed to design new or amend existing templates to suit their operational characteristics and management requirements. However, self-designed templates must ensure:

• Accurate, timely, truthful, and transparent reporting;
• Ease of verification, control, and reconciliation of assets and capital;
• Compliance with Article 16 of the Accounting Law, reflecting fully, timely, and transparently the enterprise’s assets and capital, and ensuring ease of verification and control.

When designing or amending document templates, enterprises must issue an Accounting Regulation (or equivalent document) specifying the amendments and the related legal responsibilities.

If no custom templates are designed, enterprises shall apply the standard forms in the Annex of Circular 99.

The Circular also notes that if an enterprise issues documents subject to other legal regulations, accounting documents must comply with those applicable laws.

Chief Accountant must not sign “beyond authorization”

Circular 99/2025/TT-BTC stipulates that all economic and financial transactions arising from enterprise operations must have corresponding accounting documents, prepared only once per transaction.

The preparation and signing of accounting documents must comply with the Accounting Law, guiding documents of the Accounting Law, this Circular, and any amendments or replacements.

The Circular further clarifies that signing authority within accounting documents must comply with legal provisions, management requirements, and internal governance regulations to ensure strict control and protection of assets and capital, and to assign clear responsibility to individuals involved.

“The Chief Accountant or the person authorized by the Chief Accountant must not sign ‘beyond the authorization’ of the enterprise’s management positions on accounting documents, except as otherwise provided by law,” the Circular emphasizes.

Effective date and other notes

• Circular 99/2025/TT-BTC takes effect from January 1, 2026, applicable for financial years beginning on or after this date.
• Accounting regulations for the equitization of State-owned enterprises under Circular 200/2014/TT-BTC remain in effect until replaced.
• Small and medium enterprises, non-public entities, or other accounting units may choose to apply Circular 99 in accordance with their operational characteristics, but must maintain consistency throughout the accounting period.
• Ministries, sectors, provincial/municipal People’s Committees, and local Tax authorities are responsible for disseminating and guiding enterprises in implementation. Any issues encountered should be reported to the Ministry of Finance for review and resolution.