Insight

First mortgage vs second mortgage: understanding your security position

June 14, 2026
Mortgage loan documents laid out on a desk

In property lending, the difference between a first and a second mortgage is really one question: when things go wrong, how reliably do you get your money back? It comes down to where you sit in the capital stack.

First mortgage: the senior position

A first mortgage is the primary claim over a property. If a borrower defaults, the first-mortgage lender is repaid before anyone else — which makes it the lowest-risk position, and the one that attracts the keenest pricing and the most conservative leverage.

Second mortgage: subordinate, higher-yielding

A second mortgage — the basis of most mezzanine finance — ranks behind the first. It is repaid only after the senior lender is made whole, so it carries more risk and, in exchange, a higher return. Its priority is governed by a deed of priority between the two lenders.

Comparing the two

  • First mortgage — lower risk, lower yield, greater control; first claim on the asset.
  • Second mortgage — higher risk, higher yield, more flexible; subordinate security.

Neither is better — they are different tools for different risk appetites. Many investors hold both, using first mortgages for a stable income core and second mortgages for measured extra return.

What to check before you invest

Look closely at the leverage, the quality of the underlying asset, the borrower's strength, and the buffer between the total loans and the property's value. In a changing market, that buffer is your protection.

Talk to Siare about matching first- and second-mortgage positions to your security preferences.

This is general information about wholesale investment structures only. It is not financial, legal or tax advice, is not an offer, and does not take account of your objectives or circumstances. Any investment is made solely on the terms of the relevant offer document.

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