CBA Tightens Grip on Australian Mortgages as Westpac Loses Ground -- What It Means for Non-Standard Borrowers

CBA has reinforced its position as Australia's dominant mortgage lender while Westpac's home loan book continues to contract. The latest data, reported by Australian Broker, shows Westpac losing ground across multiple segments while CBA tightens its grip on the broker channel. But beneath the headline numbers lies a dynamic that directly affects borrowers who do not fit the vanilla profile either lender is competing for.

The Market Share Battle

Westpac's mortgage book has contracted in a year where CBA has been investing heavily in broker distribution and digital lending infrastructure. The dynamic is partly a function of competitive pricing, but it also reflects a strategic choice: the big banks are concentrating resources on high-volume, low-risk lending -- the standard owner-occupier market, preferably with a payslip and steady employment history.

This competitive focus on the mainstream market means the edges of the lending landscape -- self-employed borrowers, migrants, investors with complex structures -- are increasingly underserved by both institutions.

What This Means for Self-Employed and Non-Standard Borrowers

When major banks compete aggressively on pricing for standard borrowers, they typically fund it by becoming more selective, not less. The efficiencies gained from automated credit decisioning -- which CBA and Westpac both rely on -- do not easily accommodate the nuanced income streams of a restaurant owner, a freelance consultant, or a sole trader with two years of ABN history.

The result: self-employed and non-standard borrowers find themselves squeezed out of the very market the big banks are fighting over. Applications that fall outside the automated scorecard get manual review -- and manual reviews at busy major banks, in a competitive environment, often default to conservative decisions.

Where Non-Bank Lenders Excel

Non-bank lenders like MPFG are not competing for the same standard loans CBA and Westpac are fighting over. Their focus is precisely the gap the major banks are creating: borrowers with genuine financial capacity but non-standard income documentation.

An Alt Doc loan assessed on BAS statements, accountant letters, or business bank statements can reach an approval decision faster and with more flexibility than a manual review at a major bank backlogged by competitive pressure. For borrowers with self-employed income, the big bank market share battle is largely irrelevant -- the question is simply which lender will actually assess their application on its merits.

MPFG's products are designed for this exact scenario: flexible documentation, individual assessment, and lending decisions made by experienced credit professionals rather than automated models.

General information only. Not financial advice.