Zimbabwe has deposited its ratification instrument for the multilateral tax assistance convention, establishing an entry-into-force date of 1 December 2026 and general application from 1 January 2027.

Zimbabwe has formally deposited its instrument of ratification for the OECD-Council of Europe Convention on Mutual Administrative Assistance in Tax Matters as amended by the 2010 protocol, according to an update released by the Organisation for Economic Co-operation and Development (OECD).

The ratification instrument was officially deposited on 31 August 2026. Following the standard procedural timeline, the Convention will enter into force for Zimbabwe on 1 December 2026.

In terms of legal and administrative effect, the Convention will generally apply from 1 January 2027. However, specific provisions allow for deviations from this general timeline:

  • Earlier periods by agreement: The Convention may apply for earlier taxable periods between signatories, subject to mutual agreement between the relevant jurisdictions.
  • Criminal matters: The terms of the Convention will apply in relation to any period regarding criminal tax matters.

The formal deposit completes the required constitutional and international procedures for Zimbabwe to bring the multilateral framework into effect, establishing the timeline for its operational application across civil and criminal administrative tax assistance.