New Zealand Partnership Based Visas: 2026 Age and Evidence Rules From 25 September 2026, both partners must be at least 18 when applying for a dedicated New Zealand partnership-based visa, and INZ only counts relationship evidence from when both were 18. Because residence requires 12 months of living together, the practical minimum age for partnership-based residence is 19. New Zealand Partnership Based Visas: What the New Age and Evidence Rules Mean If you are planning a par