When Clients Ask About Interest-Only Lending

Interest-only lending comes up regularly in broker conversations, often prompted by clients who are looking to manage cash flow during a particular period of their lives. While it can serve a legitimate purpose, it is also one of the areas where responsible lending obligations weigh heavily, and where a clear, well-documented conversation can make the difference between a good client outcome and a problem down the track.

What Interest-Only Lending Actually Means

With an interest-only loan, the client pays only the interest portion of their repayment for an agreed period, typically between one and five years. The principal balance does not reduce during this time. At the end of the interest-only term, repayments revert to principal and interest on the remaining balance, which means repayments usually increase, sometimes significantly, because the same debt now needs to be repaid over a shorter remaining term. Clients need to understand this clearly before proceeding.

When It Can Make Sense

There are circumstances where interest-only lending is a sensible tool. Property investors managing cash flow across a portfolio, clients in a temporary income dip who have a clear plan to return to principal and interest, or borrowers who are completing a renovation and need cost relief during construction are examples many brokers will encounter. The common thread in each of these scenarios is that there is a specific, time-limited reason for the arrangement and a credible path back to full repayments. Lenders in New Zealand are more willing to consider these cases when the reasoning is clearly articulated.

What Lenders Will Ask

Lenders assess interest-only applications carefully, particularly in the current regulatory environment shaped by the CCCFA. Expect requests for a clear purpose, evidence of serviceability at the reversion rate (not just the interest-only rate), loan-to-value ratio scrutiny, and in many cases a maximum term before the loan must revert. For investment property clients, lenders will also look at the overall portfolio position and whether the interest-only arrangement is supported by genuine cash flow need. Preparing clients for these questions before submission reduces back-and-forth and improves approval speed.

The Serviceability Conversation

One of the most important conversations to have with a client requesting interest-only is about what happens when the term ends. Running the numbers on the reversion repayment and stress-testing it against potential rate increases is essential. Some clients are surprised to find that their repayments increase by 30 to 40 percent at reversion - this is not a reason to reject the arrangement outright, but it is information the client must have before making the decision. At Chaperone, we think this kind of transparent modelling is exactly what separates great advisers from transactional ones.

Documentation and File Notes

Because interest-only lending sits in a higher-scrutiny category, file notes are especially important. Recording the client's stated purpose, your assessment of their ability to service at reversion, any alternatives you discussed, and why interest-only was considered appropriate in their circumstances provides a clear record that supports both the client outcome and your compliance position. If a client pushes for interest-only without a clear rationale, that conversation and your advice also needs to be on file.

Interest-only lending is a genuine tool when used appropriately, and brokers who can navigate the conversation clearly and document it well add real value for their clients. The goal is always an outcome that works now and remains workable when repayment terms change.