Investor lending slide substantially lowers credit growth
Westpac reports July's private sector credit growth slowed to 0.6% monthly, below market consensus. Housing credit, 62% of total, grew 0.5%, with investor lending falling 0.3 percentage points. Business lending offset housing slowdown. APRA data shows top 10 lenders' mortgage books grew $6B in July, with some banks reporting contractions. Equifax data indicates mortgage demand down 16.4% year-on-year.
How this was made

The 30-second read
Why it matters
It frames July as a more sustainable credit pace, with investor lending decelerating and housing credit growth slowing, while business lending remains the main contributor to total credit growth.
Market read
For traders in Australian bank credit and housing-exposure risk, the key actionable takeaway is the investor-lending-driven deceleration and the expectation of further housing credit slowing in coming months.
What to watch
The article relies on lags between borrower decisions and RBA credit recording, so near-term prints may understate or overstate the true underlying demand shift depending on timing.
Background
The piece summarizes Westpac’s interpretation of RBA private sector credit growth and links the housing slowdown to investor lending, higher rates, lower house prices, and May budget tax changes for investment properties.
Ticker impact
HSBC Bank Australia is included in the list of lenders with mortgage-book contractions in July per APRA’s ADI statistics.
Slight negative bias for housing-credit outlook, with sensitivity to continued inquiry declines.
The article provides no HSBC-specific magnitude for July, only inclusion in the contraction list.
Market effects
Signals a faster housing-credit slowdown driven by investor lending and tax changes, likely pressuring Australian banks’ mortgage growth and credit-quality expectations.
Australia-focused read-through for ASX bank sentiment as RBA credit figures and APRA ADI data show cooling mortgage-book growth.
Limited direct global impact, but reinforces the global theme of housing sensitivity to rates and tax policy in bank credit books.
Counterpoint
Housing credit may stabilize if mortgage inquiries stop falling, and business lending is described as cushioning total credit growth, which could limit downside for bank earnings.
Key entities
- bankWestpac
Provides the central interpretation that investor credit growth fell to its weakest pace in about two years due to tax changes and policy lag effects.
- regulatorAPRA
Reported July ADI statistics showing top-10 lenders’ housing-loan books grew modestly and that several majors saw mortgage-book contractions.
- central bankRBA
Published credit figures referenced in the article, including the July pace of private sector credit growth and housing credit changes.
- data providerEquifax
Reported mortgage demand down 16.4% year on year in July and first home buyer demand down 19.1%.

