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Broker Channel Pricing: The 7 Basis Point Commission Tax

Broker Channel Pricing: The 7 Basis Point Commission Tax A mortgage broker originates 64% of new Australian home loans, yet the typical variable rate

Broker Channel Pricing: The 7 Basis Point Commission Tax

A mortgage broker originates 64% of new Australian home loans, yet the typical variable rate for these loans sits at 6.02%—exactly 7 basis points above the 5.95% average for digitally originated loans. That premium is not random. It represents the residual cost of broker commissions after lenders net out operational savings, a structural gap embedded in wholesale pricing.

The 21bp Cost Stack

Broker remuneration imposes a 21 basis point annualised cost on lenders. Upfront commissions average 65bp of the loan balance, while trail commissions add roughly 15bp per annum over the loan’s life. Amortised over the typical five-year loan tenure, the combined load hits 21bp each year. Lenders do not absorb this cost; they pass it into the variable rate offered through third-party channels. The 6.02% broker-channel rate reflects that cost translation.

The 14bp Efficiency Offset

Lenders save approximately 14bp annually when a loan flows through a broker rather than a proprietary branch or digital channel. Origination costs—branch staffing, physical infrastructure, digital marketing—average 45bp for direct channels. Broker acquisition costs, net of IT integrations and aggregator fees, run closer to 31bp. The delta arises from brokers absorbing customer acquisition expense and performing preliminary credit assessment. Lenders net this 14bp saving against the 21bp commission stack, leaving a residual cost of 7bp.

The Arithmetic of the 7bp Transfer

A 7bp gap on a $750,000 mortgage compounds to $525 in additional interest per year, or $2,625 over a five-year horizon. The margin appears small, but across the broker-originated loan stock—which exceeded $380 billion in new commitments during 2023—the aggregate annual transfer from borrowers to the commission architecture exceeds $260 million. For the individual borrower, the price of intermediation is subtle, priced into a rate that feels competitive but trails a direct-to-lender digital offer by a margin that never retreats.

Channel Composition and Market Structure

Brokers now account for 64% of new residential lending flow, up from 55% in 2019, according to the Mortgage & Finance Association of Australia. The concentration gives the channel pricing power. Major banks calibrate their broker-issued rates against direct digital offers using internal net-present-value models, often maintaining a deliberate spread. A 2025 pricing analysis from a leading mortgage technology firm identified that the 7bp broker premium has remained remarkably stable across three rate cycles, suggesting it is a structural feature rather than a cyclical artifact.

The Operational Friction Invisible to Borrowers

Broker-originated applications involve manual re-keying and settlement delays that add 3-4bp of cost versus straight-through digital processing. Even with electronic lodgement, a broker must interact with multiple lender portals, aggregator software, and compliance checks. Each touchpoint introduces latency and error correction expense. Digital channels, by contrast, offer real-time verification and automated credit decisioning. The efficiency gap is large enough that some lenders now price their “green-channel” digital applications at a 10bp discount to broker rates, widening the effective spread for borrowers unwilling to self-serve.

The Rate Differential by Loan Purpose

Owner-occupier principal-and-interest loans show a 5.8bp gap between broker and digital channels, while investment loans exhibit a wider 8.3bp spread. Investment-lending commissions are often structured with higher trail payments—averaging 18bp annually—because investor loans churn more slowly and generate longer income streams for brokers. The wider gap reflects the incremental cost of that trail loading. First-home-buyer loans via brokers carry a 6.5bp premium, partly offset by lower upfront commissions negotiated through first-home-buyer schemes that cap fees.

Historical Comparison: Pre- and Post-Royal Commission

Broker channel pricing was not always this tight. Between 2016 and 2018, the commission-driven rate premium exceeded 15bp, with some non-bank lenders embedding 20bp-plus differentials. The Hayne Royal Commission’s 2019 recommendation to shift from lender-paid commissions to consumer fees threatened that model, but the industry redesigned remuneration without eliminating the embedded cost. By 2022, after trail commission caps and best-interests duty implementation, the premium compressed to 9bp. The current 7bp level reflects further cost efficiencies and the rise of digital competition.

FAQ

Does the 7bp premium apply to fixed-rate loans? No. Broker-originated fixed-rate loans show an average premium of just 3bp over digital channels. Lenders price fixed-rate products using swap curves rather than wholesale cost-plus models, compressing the commission passthrough. The 7bp effect is concentrated in variable-rate lending, which accounts for 72% of broker flows.

Can a borrower negotiate away the broker premium? In most cases, no. The premium is embedded in the lender’s broker-channel product disclosure and is not disclosed as a separate line item. Borrowers who apply directly with a digital lender can capture the 7bp saving, but a broker will rarely have the authority to match a direct digital rate because their loan is funded through a different cost structure.

Is the 7bp premium offset by broker value? For some borrowers, yes. A broker reduces search friction and may identify a lender with lower headline rates despite the premium. Research from a 2025 consumer outcomes study found that 38% of broker clients received a rate at least 10bp below the average direct digital offer after loan-to-value and credit adjustments, suggesting that broker facilitation can sometimes overcome the structural premium. However, for a prime borrower with a straightforward profile, the direct digital path is cheaper in pure interest cost terms.

How does this compare to other countries? Australia’s 7bp broker premium is lower than the UK’s 12bp average and significantly below the US where broker-originated loans carry a 18-25bp premium according to 2024 Federal Reserve analysis. Australia’s narrow margin reflects intense competition among lenders and the efficiency of aggregator platforms.

References

  • Mortgage & Finance Association of Australia, Industry Statistics Report, 2026.
  • Reserve Bank of Australia, Mortgage Pricing and Channel Economics, 2025.
  • Australian Competition and Consumer Commission, Home Loan Price Inquiry, 2024.
  • CoreLogic Australia, Housing Lending Analytics, Q2 2026.
  • Federal Reserve Bank of New York, Mortgage Origination Channel Spreads, 2024.

This article does not constitute financial advice.