Who cut the RBA's brake wires?

Coolabah Capital's Christopher Joye made Livewire Markets  headlines recently with a blunt assessment of the RBA's predicament: inflation running at 4.6%, a central bank that has become reactive rather than pre-emptive, and government spending combined with high immigration fuelling demand the RBA cannot control with interest rates alone. His view that Australia faces another 100 to 125 basis points in hikes this year, potentially pushing the cash rate beyond 5%, is confronting.

Joye identifies the right culprits: fiscal excess and immigration overwhelming the economy's absorptive capacity. He is right on the diagnosis. But the mechanism runs deeper than fiscal recklessness meeting monetary timidity. It is demographic.

The Thesis

Australia has approximately 4.4 million people aged 65 and over, controlling trillions in financial assets. On the other side, 3.5 million mortgage holders carry approximately A$850bn in owner-occupier variable rate mortgage debt, repriced 4.25% above the 2022 cash rate floor — implying roughly A$34–38bn in additional annual repayments.

Our research, drawn from 38 companies across eight sectors on the ASX, shows that rate hikes reduce demand from the leveraged cohort while simultaneously boosting income for retirees by an estimated A$28–38bn across five distinct channels. Each additional 25 basis point hike adds approximately A$2bn to the mortgage repayment burden while adding approximately A$1bn to retiree deposit income alone.

The magnitudes are comparable. The consumption dynamics are not. Mortgage holders are forced to service debt. Retirees are in the drawdown phase of their financial lives — spending their income is the explicit purpose of their financial structure.

The RBA is pressing the brake and the accelerator at the same time. Here is how.

The Five Channels: When ABS' wages = RBA rate decisions  

Channel #1 - The Age Pension ratchet. 

Roughly 2.6 million Australians receive the Age Pension, a transfer of A$55–60bn annually indexed to the higher of CPI, the Pensioner and Beneficiary Living Cost Index, or male average weekly earnings. When inflation rises, the pension rises with it. When inflation falls, the pension holds. It is a one-way ratchet.

The ABS Selected Living Cost Indexes for the March quarter 2026 recorded the largest quarterly increase for Age Pensioner households since the series began in 2007. CPI feeds directly into government transfers, which feed directly into spending, which feeds back into CPI. The loop is mechanical and rate-insensitive.

                 not

"What goes up, must ^ come down."
                                                                      - Sir (not) Isaac Newton

Regis Healthcare (ASX: REG) shows the downstream effect: government revenue per bed per day is forecast to rise from A$323 in FY25 to A$340 in FY26 and A$376 by FY28, with occupancy at 95.1% and climbing. That revenue growth is funded by indexed government payments. Rate hikes do not slow it down; by sustaining inflation, they accelerate it.

Channel #2 - Mandatory super drawdowns. 

Australia's A$4.5 trillion superannuation pool requires those with account-based pension accounts to withdraw a minimum percentage that increases with age — starting from 4% at 60–64, rising to 7% at 80–84 and beyond. These drawdowns are legislated and entirely independent of the cash rate.

AMP's platform data captures the acceleration: net flows into retirement-phase platforms surged from A$1.4bn in FY23 to A$5.1bn in FY25, with specialist platforms growing from 2% to 22% market share over the past decade. The Baby Boomer transition from accumulation to drawdown is a structural force, not a cyclical one. Each passing birthday systematically pushes the aggregate flow of funds into retirees' pockets higher.

Channel #3 - Term deposits and fixed income. 

Retirees currently hold an estimated A$400–500bn in cash and deposits. Higher rates translate directly into higher term deposit rates and higher retiree income — a nullifying effect on the RBA's intended demand suppression.

Competition for customer deposits has intensified, driven by the wind-down of AT1 capital instruments and an increasingly rate-conscious customer base. Westpac's net interest margin compressed 9 basis points in the first half of FY26, partly attributed to aggressive bidding for retail deposits.

NIM: The spread between what banks earn on loans and pay on deposits

Challenger (ASX: CGF) provides further evidence: record lifetime annuity sales of A$3.8bn over the first half of FY26, up 32% on the prior corresponding period. If the persistence of inflation via growth in distribution needs explaining, this is a good place to start.

Higher rates do not suppress demand fuelled by retirement income streams. They stimulate it.

Channel #4 - Equity distributions. 

Australia's major banks collectively pay approximately A$23bn annually in fully franked dividends. For an investor in their pension phase, franking credits are equivalent to roughly 43% of the dividend payout, returned as a tax refund or offset against liabilities. A A$4.70 dividend from CBA becomes A$6.71 grossed up.

The insurers' floating rate channel contributes similarly. As floating rates climbed, QBE's FY25 investment income of US$1,633m was roughly three times its FY21 level, and wholly funded its FY25 dividends of US$908m. Those dividends are fully franked for Australian shareholders, including pension-phase investors.

Channel #5 - Rental income. 

Vacancy rates are tightening across the board, in what now appears to be a supply-stricken market across both residential and commercial properties.  

Scentre Group's (ASX: SCG) retail portfolio hit 99.8% occupancy in FY25, its highest level since 2013, with specialty rent escalations of 4.5% embedded in CPI-linked leases. 

Only in 2026 are the effects of the 2022–2023 rate hiking cycle emerging in housing data — building approvals have fallen 10.5% across March 2026. 

Mirvac (ASX: MGR) is now estimating a cumulative housing undersupply of 165,000 dwellings by 2029. 

The causation is circular: higher rates mean fewer homes built, a deepening supply shortage, rising rental inflation, and persistent CPI. Given that housing undersupply has been cited as a primary driver of inflation, the case for further rate hikes is difficult to reconcile with the evidence.

Channel Summary

The K-Shaped Consumer: Company Evidence of  Bifurcation

If this thesis holds, affluent older Australians should be spending freely while younger, leveraged households retrench. The company evidence confirms it.

Flight Centre's (ASX: FLT) premium and cruise segments grew over 20% in the first half of FY26, with the company posting a January leisure record. Helloworld Travel's (ASX: HLO) Australian forward bookings rose 14% despite the cash rate sitting at its 88th percentile over five years. The over-60 demographic — asset-rich and mortgage-free — is not responding to rate hikes.

On the other side, Domino's Pizza (ASX: DMP) reported same-store sales of -4.7% in Australia and New Zealand at an average ticket price of roughly A$18, near the floor of branded food-out spending. Kogan (ASX: KGN) grew its customer base 23% as consumers migrated from mid-market platforms to discount alternatives. JB Hi-Fi's (ASX: JBH) premium appliance chain e&s collapsed 48% while the core JB Hi-Fi brand surged 26% on tariff-driven demand pull-forward.

This is not a uniform consumer downturn. It is a bifurcation that maps directly onto the demographic divide between asset holders and debt holders.

A K-Shaped Consumer Evidence Table 

The Housing Feedback Loop

Joye warns that pushing rates beyond 5% while immigration is slashed could trigger a recession Australia has never experienced. The risk is severe. But there is an additional feedback loop embedded in the housing channel that makes the problem self-reinforcing even without a migration collapse.

Rate hikes suppress building approvals, now running at approximately 162,000 per year against a structural need of 200,000. Construction costs have risen 30% since 2020. At a 4.35% cash rate, the economics of new residential development are broken for most private sector builders.

James Hardie's (ASX: JHX) assessment is explicit: mortgage rates are the single variable driving 70% or more of building products earnings variance, and the RBA is hiking into a housing market already at a decade-long trough.

Every quarter that rates stay elevated, fewer dwellings get approved, the supply gap widens, vacancy remains at record lows, and rents rise further. Rental CPI feeds into headline CPI. Headline CPI triggers Age Pension indexation. The pension sustains consumer demand. The RBA sees persistent demand and hikes again. The loop restarts.

What to Watch

Three indicators will determine whether the feedback loop intensifies or breaks. 

1. ABS Selected Living Cost Indexes: if the Age Pensioner index continues recording record quarterly increases, the pension ratchet is accelerating. 
2. Building approvals: if they remain below 170,000 per year, the housing supply gap is widening and rental CPI will not moderate. 
3. Challenger's annuity sales and bank term deposit volumes: if retirees continue locking in high fixed rates, the income channel gains duration and becomes even less responsive to eventual rate cuts.

Joye predicts a "cathartic crisis" will be required before the political class acts. And he may be right. But the crisis he describes, where Main Street connects government spending to their cost of living, is only half the picture. 

So. 

Why not cut rates? 

Appendix: Full Five-Channel Evidence Map across 38 ASX companies