New Zealand–Croatia tax treaty enters into force

First application periods are now fixed

New Zealand had already incorporated the agreement through the Double Tax Agreements (Republic of Croatia) Order 2026. The treaty affects withholding taxes in both states for amounts paid or credited from 1 January 2027. For other taxes, it applies in Croatia for taxable years beginning on or after 1 January 2027 and in New Zealand for taxable years beginning on or after 1 April 2027. These are now operative consequences of entry into force rather than projected dates.^[1][2][3]

Withholding ceilings remain conditional

For qualifying beneficial owners, Article 10 caps source-state tax on dividends at 5% where a company directly holds at least 10% of the payer’s capital or voting power throughout a 365-day period including the payment date. The cap is 15% in other cases. Articles 11 and 12 cap source-state tax on interest and royalties at 10%. Residence, beneficial ownership, holding-period and anti-abuse conditions still need to be satisfied.^[3]

Permanent establishment and anti-abuse rules

Article 5 includes a permanent establishment for a building, construction, installation or assembly project lasting more than 12 months. It also covers services continuing for more than 183 days in any 12-month period and contains aggregation rules for connected activities. Article 27 includes a principal-purpose test and a rule capable of denying benefits for specified low-taxed third-jurisdiction permanent-establishment income.^[3]

Preparation for 2027

Groups with payments, projects or entities between New Zealand and Croatia should map dividends, interest, royalties and service activity to the treaty’s effective periods. Withholding systems should not apply the treaty before 1 January 2027, and reduced rates should be supported by residence, beneficial-owner and holding evidence. The announcement creates no separate return deadline but changes the legal basis for treaty claims and permanent-establishment analysis for the relevant 2027 periods.^[2][3]

Domestic claim forms, certificates and refund-at-source procedures were not examined. Those procedural details remain for Inland Revenue or Croatian Tax Administration guidance and do not alter the verified entry-into-force milestone.^[1][2]