12-Month Cohabitation Evidence for NZ Partner Visa

The residence pathway for partner visas in New Zealand has one hard gate: you must prove that you and your partner have been living together continuously for at least 12 months. A marriage certificate won't open that gate. Immigration New Zealand (INZ) states explicitly that a marriage certificate alone does not prove cohabitation. You need a paper trail that covers every month of those 12 months.

This is where most applications hit trouble — not because couples aren't genuinely living together, but because they haven't been generating the right documents, or their evidence has gaps.

What INZ Means by "Living Together"

INZ's definition is stricter than most people expect. "Living together" means sharing the same address as your primary, permanent residence. It does not include:

• Spending nights at each other's places while each of you maintains a separate home
• Sharing accommodation during a holiday
• Living as flatmates before the romantic relationship started

Having children together does not substitute for cohabitation proof. INZ's Operational Manual (F2.5) is clear on this: dependent children are powerful evidence of a genuine relationship, but they do not waive the 12-month living-together requirement for a residence application.

The Three Tiers of Cohabitation Evidence

INZ weighs evidence in a rough hierarchy. Understanding this hierarchy helps you prioritize what to gather.

Tier 1 — Primary residential documentation (strongest)

This is joint legal liability for the address. The gold standard is a joint tenancy agreement or mortgage in both names, plus corresponding utility bills (power, internet, gas) in both names or at least in the name of each partner at the same address. Bank statements that show both salaries landing at the same address, or regular rent payments from a joint account, reinforce this tier.

Tier 2 — Official individual correspondence at the same address

When you can't have fully joint accounts or leases (for example, if you're living in a family member's property), INZ accepts individual documents from each of you showing the same address during overlapping time periods. This includes bank statements, tax records, driver's licences, electoral roll registration, GP or hospital letters, and vehicle registration.

The key is that both of you must have official correspondence going to the identical address during the same months.

Tier 3 — Social and supporting evidence

Photos taken in your home together, social media posts, communication logs, and letters from friends and family confirming you live together. These are necessary to round out an application and show social recognition, but they cannot carry an application that lacks Tier 1 or Tier 2 evidence.

The 12-Month Grid Approach

INZ case officers are trained to check for continuity. An application that has strong evidence from month 1 and month 12 but nothing in between raises red flags. The safest approach is to treat cohabitation evidence as a monthly grid.

For each of the 12 months you're claiming, you should be able to point to at least two official documents — one in your name and one in your partner's name (or one joint document) — showing your shared address. If you can't fill a particular month, that's a gap you need to address before submitting.

Common gaps and how to fill them:

• No utility bills for a month: a bank statement showing the same address, a subscription renewal letter, a letter from your employer or GP, or a vehicle registration renewal addressed to the shared home can substitute.
• Just moved in: if you moved into a new address mid-year, you need to show when you moved (tenancy agreement start date) and why there's no evidence before that date (you were at a different address, which is also fine — just document the transition).
• Living with parents or in shared accommodation: this is covered separately below.

When You're Living With Parents or Flatmates

This is the most common evidence problem. If you moved into your partner's parents' house, or into a shared flat where the lease is in someone else's name, you may have no joint tenancy and no utility bills in either of your names.

The solution is the "jigsaw approach":

1. Both of you update every official record to the shared address immediately — bank accounts, driver's licences, tax registrations, GP registrations, electoral roll.
2. Obtain a verification letter from the primary tenant or homeowner. The letter needs to confirm your names, that you both share a specific bedroom at that address, when you moved in, and contact details for INZ to follow up. A generic "they live here" letter is weak; a detailed letter with dates and a description of your domestic arrangement is strong.
3. Generate as much individual official correspondence at that address as possible across every month of your stay.

Periods of Separation

INZ acknowledges that couples sometimes live apart temporarily. Under Operational Manual F2.30.1, separations don't automatically kill an application — but you must proactively explain them. Officers assess whether the reasons for separation were "genuine and compelling" (unavoidable work commitments, family obligations, serious illness) and whether the couple made active efforts to stay together.

If your 12 months includes a period of separation, document it thoroughly: flight itineraries, communication logs showing regular contact, evidence of financial support if applicable, and a written explanation of why you were apart and how the relationship was maintained.

A three-month separation in a two-year relationship is viewed differently from a six-month gap in a 13-month relationship. Context matters.

For the Work Visa vs. the Residence Visa

The evidence standard for the Partner of a New Zealander Work Visa is somewhat more flexible than for the Resident Visa. The work visa doesn't require a full 12 months of cohabitation — couples who have recently moved in together can apply for the work visa to maintain lawful status while building up their cohabitation evidence toward the 12-month threshold for residence.

Once you're applying for residence, the 12-month continuous cohabitation requirement is absolute, and the evidence must cover that full period.

If you want a structured system for compiling, organizing, and checking your cohabitation evidence before you submit, the New Zealand Partner Visa Guide includes a month-by-month evidence planner designed around INZ's assessment criteria.

Common Mistakes That Cause Requests for Further Information

• Submitting photos and chat logs without any official address documentation
• Evidence that covers the first and last month only, with nothing in between
• Documents showing different addresses for each partner during the same period
• Not explaining a gap — officers assume the worst if a gap is left unexplained
• Submitting a joint bank account that was opened recently and shows no transaction history

What Happens If Your Evidence Is Weak

INZ may issue a Request for Further Information (RFI) asking for specific documents. This is a routine request and responding with the right evidence can fix it. More serious is a Potentially Prejudicial Information (PPI) letter, which means the officer has already formed a negative view of the application and is giving you a final chance to respond before a likely decline. A PPI is harder to recover from and usually warrants professional advice.

The best insurance against either is thorough documentation from day one.

Summary

• INZ requires proof you have been living at the same address as your primary residence for at least 12 continuous months before a residence application
• Marriage alone is not enough; nor are children
• Cover every month with at least two official documents per month showing both partners at the same address
• Living with parents or in shared accommodation is workable but requires extra steps: a detailed verification letter and synchronized official records at that address
• Periods of separation must be explained with evidence of the reasons and of ongoing contact

The New Zealand Partner Visa Guide covers the full evidence framework, including templates for verification letters, the cohabitation planner, and the document checklist for both the work visa and residence application.

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