Executive Summary

On 5 May 2026, the Reserve Bank of Australia raised the cash rate by 25 basis points to 4.35% — its third consecutive hike of the year and a level not seen since the November 2023 cyclical peak. The decision was made on an 8-1 majority, a meaningful step up in Board consensus from the 5-4 split in March and was accompanied by an explicit warning of second-round effects from the Middle East energy shock and risks tilted to the upside.

The macroeconomic picture and the credit opportunity it creates are not the same question, and we believe AUD credit investors should treat them as such. The RBA may or may not yet be at peak — with the futures market pricing in one more 0.25% rate hike to 4.60% over the next six months. What is materially clearer is the implication: AUD investment-grade (IG) higher running yields and floating-rate income provide a case for measured deployment into AUD credit which does not depend on getting the terminal rate right.

1. Where the Cycle Sits

1.1  The May 2026 decision in context

The RBA has now hiked three times in 2026 — February (+25bp to 3.85%), March (+25bp to 4.10%) and May (+25bp to 4.35%) — fully reversing the three cuts delivered through 2025 and returning the cash rate to its previous-cycle peak. Two features of the May decision matter for AUD credit investors more than the rate level itself.

First, the vote split. March was 5-4 in favour of the hike — a divided Board where one vote could have changed the outcome. May was 8-1 — a near-unanimous Board with only one member voting to hold. That escalation in consensus reduces the probability that the next decision delivers a material reversal of stance. The Board has now collectively endorsed the tightening posture rather than narrowly waving it through.

Second, the language. The Board moved from describing inflation as elevated to describing it as “likely to remain above target for some time” with “risks remain tilted to the upside, including to inflation expectations.” The reference to second-round effects — wages and services pricing responding to the energy shock — is the variable the RBA is most attentive to and the one most likely to drive further tightening if it materialises in the next round of data.

1.2  The CPI bifurcation that frames the next call

The 29 April CPI release delivered a split print that informs the path from here. Headline inflation jumped to 4.6% YoY in March from 3.7% in February — the highest since September 2023 — driven overwhelmingly by a 32.8% monthly spike in automotive fuel prices on the back of the Middle East oil shock. But trimmed mean inflation, the RBA’s preferred underlying measure, held at 3.3% YoY on a monthly basis. The quarterly trimmed mean rose modestly to 3.5% — slightly below the consensus 3.6%.

In short: the price level has moved on fuel, but broad-based second-round pass-through has not yet appeared in the official data. The Board chose to hike on the headline reading and the inflation expectations data anyway, signalling that it is prepared to act pre-emptively against the risk of expectations de-anchoring rather than wait for the underlying data to confirm the pass-through is occurring. That is a more hawkish reaction function than the dovish minority on the Board wanted to see.

1.3  What the market is pricing now

Reference levels (as of 21 May 2026) following the May decision give a clear picture of where the AUD curve is trading the higher-for-longer view:

• Cash rate: 35%. 3-month BBSW: ~4.45%, reflecting both the rate move and persistent short-end funding tightness.
• ACGB 3-year: ~4.60%, with the front-end re-pricing to incorporate residual probability of one more 0.25% rate hike to 4.60% over the next six months.
• ACGB 5-year: ~4.65% — the curve is essentially flat through the medium term, signalling that the market expects the cash rate to stay near 4.60% for an extended period.
• ACGB 10-year: ~5.00%, near multi-decade highs and pricing meaningful term premium.
• ACGB 20–30 year: ~5.40%, with persistent long-end steepening as global term-premium re-prices.

These are entry levels not seen for most of the post-GFC era when the cash rate was close to 0%. For AUD credit and debt allocators, the question now shifts from “is yield available?” to “where on the curve is yield best paid for the risk? and “what sectors makes sense to invest in?”

2.  Why Bond Markets Lead the RBA — and What This Means for Credit

2.1  The pattern is real

One of the more durable features of Australian rate cycles is that the bond market begins to price the next phase well before the RBA acts on it. This is not commentary or interpretation — it is structural. The cash rate is set by a committee on the basis of data that is already published; the 10-year bond yield is continuously priced based on forward expectations. Lead times have varied across cycles, but the direction has been remarkably consistent.

In the most recent complete cycle, the 10-year ACGB peaked at approximately 5.27% in November 2023 — the same month as the RBA’s previous-cycle peak of 4.35%. By early 2024, 10-year yields had retraced meaningfully despite an unchanged cash rate. The RBA delivered its first cut in February 2025 — some 15 months after the bond market had already begun moving. Across the three most recent Australian rate cycles, the bond market has peaked and begun its decline an average of 12–15 months ahead of the first cut.

2.2  Why this matters for credit specifically

The credit investor’s version of this insight is more nuanced than the rates investor’s, and it matters more, because credit yield decomposes into two components that move on different schedules:

• The base rate — this is the part that follows the bond-market-leads-RBA pattern. Once the market begins pricing the next phase, ACGB yields fall, swap rates fall, and the absolute yield available on new fixed-rate credit falls with them.
• The credit margin — this typically reflects perceptions of credit risk and supply/demand technicals rather than the rates cycle directly. Margins widened materially through 2022–2023 and have since compressed as offshore demand for AUD credit has remained firm. The trough in margins typically lags the bond market peak — meaning the all-in yield case for credit usually persists slightly longer than the case for rates duration.

For an AUD credit investor, the practical implication is asymmetric. The portion of return attributable to the base rate is best captured before the market begins pricing cuts. The portion attributable to credit margin can often be captured for somewhat longer. Floating-rate exposures bypass the base-rate timing problem entirely — coupons reset to the prevailing BBSW, so the income follows the cycle in real time.

2.3  The honest caveat

The bond-market-leads-RBA pattern is an average across cycles, not a guarantee, and the current cycle has features that argue for caution in extrapolating from the historical lead time. The Middle East energy shock has introduced a supply-side inflation impulse that is genuinely difficult to forecast. The RBA has explicitly raised the prospect of further tightening if second-round effects materialise. The 8-1 vote split in May suggests the Board is more, not less, willing to hike again than the 5-4 March vote implied.

Our reading: the bond market may have begun the process of repricing toward an eventual easing cycle, but that process is in its early stages, the path is not linear, and a hot data print could see the long end test recent highs again. The implication for portfolio construction is to weight new deployment toward exposures whose returns are robust for a wider range of terminal rates, and to avoid exposures whose case relies heavily on getting the terminal exactly right.

3.  For Existing Credit Portfolios — Why Your Positions Are Working

If you hold AUD IG credit exposure that pre-dates the 2026 tightening cycle, your investment is doing exactly what it was designed to do — but the “why” differs by sub-asset class. We see four distinct cases worth understanding:

3.1  Investment-grade (IG) fixed-rate bonds

The yield you locked in at issue is the yield you earn to maturity, provided the issuer pays. Mark-to-market price movements as rates rise and fall affect the headline value on a custodian statement, but they do not affect the contractual cashflow. At maturity you receive the full face value plus accrued income. This is the fundamental and often under-appreciated distinction between fixed-income and equities: the return is, in an important sense, known from the outset.

3.2  Floating-rate notes (FRNs)

FRN positions are not just unaffected by the rate cycle — they actively benefit. Each BBSW reset captures the higher cash rate, and coupon income rises in real time with each RBA decision. An investor who held an AUD major-bank senior FRN through the 2025 cuts and into the 2026 hikes will have seen coupon income decline through Q3 2025 and rise materially through Q1–Q2 2026. The May 5 hike, when it flows through to BBSW, will lift FRN coupons further. For an FRN investor, the 5 May decision is a direct income increase.

3.3  Subordinated bank debt and Tier 2

AUD Tier 2 has performed more strongly than IG senior over the last 12 months, with spreads compressing materially as offshore demand has remained firm. Existing positions have benefited from spread tightening (capital appreciation on top of coupon). Looking forward, we see the asset class as still attractive on an all-in yield basis but with less spread cushion than 12 months ago. For existing holders, call expectations remain the swing variable — investors should assume yield-to-call as the central case while recognising that yield-to-maturity is the genuine downside if a note is not called at first call.

3.4  Private credit and direct lending

Private credit positions warrant a more nuanced framing than the IG and FRN cases above. Most AUD private credit exposure is floating-rate, so the income is currently lifting with each RBA hike — a clear positive. But private credit also carries credit risk that is more concentrated, less liquid and harder to mark than listed credit; in stress scenarios, defaults and recovery rates matter materially more than they do for IG corporates or major-bank Tier 2. Existing private credit portfolios are generally working in the current environment, but credit discipline at the manager level — workout capability, downside scenarios, concentration limits — is doing more of the work than the macro tailwind.

4.  Where to Deploy New Capital — IAM House Views by Sub-Asset Class

For new capital seeking a home in AUD credit, we set out our current view across seven sub-asset classes. Each is framed by the dominant feature of the current environment — higher cash rate, fair-but-compressing margins, hawkish RBA posture and a forward path that is genuinely uncertain — and each is calibrated to perform under most plausible outcomes.

4.1  Floating-Rate Notes (FRNs) — the most robust income trade in the complex

FRNs are the cleanest expression of the current cycle for new capital. With 3-month BBSW now at ~4.45% post the May hike, major-bank senior FRNs and high-grade securitised paper deliver attractive income with no duration risk. Critically, FRN income improves further if the RBA hikes again — meaning the position is robust to both the “peak now” and “one or more hikes” scenarios. In an environment where the terminal rate is genuinely uncertain, FRNs let investors harvest the elevated front-end without having to pick the top.

4.2  Short-Duration Investment-Grade (IG) Credit

With the curve flat at the front end and term premium re-emerging at the long end, the risk-adjusted reward continues to sit in short duration IG credit. Running yields capture the elevated cash rate without exposing the portfolio to the duration risk that a delayed easing cycle implies for the long end. Senior-ranking bank paper and high-quality non-bank corporates remain the natural building blocks. This is the “averaging up” candidate par excellence — for existing investors with portfolios built at lower base rates, blending new short-IG capital at today’s yields lifts the running yield of the total holding meaningfully.

4.3  Subordinated Bank Debt — selective at current spreads

Spreads on AUD Tier 2 have compressed materially over the past 12 months as offshore demand for AUD credit has remained firm and global Tier 2 has rallied alongside investment-grade (IG) credit broadly. Current spreads sit at the fair-end of the multi-year range. We continue to see merit in the asset class on an all-in yield basis — high coupons on quality issuers — but at current spreads investors should be deliberate about issuer selection and call-date concentration. The yield pickup over senior is no longer abundant; quality control matters more in 2026 than it did in 2025.

4.4  Selective Duration — measured, not aggressive

The classic “buy duration as the RBA pivots” trade is the question that the bifurcated CPI print and the May decision have together complicated. With trimmed mean stable rather than accelerating, the case for beginning to extend duration — particularly in the 5–10 year part of the ACGB and high-grade semi-government curve — has strengthened. But the 8-1 vote and the explicit upside-risk language in the post-meeting Statement counsel against extending aggressively. Our view: scale cautiously into the long end, with the August Statement on Monetary Policy the next catalyst.

4.5  Semi-Government Bonds — the under-owned sweet spot

State government paper continues to offer attractive spread to ACGBs at the longer end, with strong credit fundamentals and supportive issuance dynamics. For AUG IG credit allocators with the latitude to extend the issuer set, semis are a natural complement to senior bank exposure in the 5–10 year part of the curve. The yield premium over Commonwealth paper, combined with the structural fiscal backing, makes this segment one of the more efficient ways to add yield without taking a step down in credit quality.

4.6  Inflation-Linked Bonds — selective tail-hedge

The case for Inflation Indexed Bonds (IIBs) is more nuanced after the April CPI. Real yields had built in a meaningful inflation risk premium going into the print; the soft trimmed mean reading took some of that premium out, and the May hike removed more. We continue to see structural merit in IIBs as a tail-hedge against the stagflationary scenario — energy prices stay elevated, second-round effects materialise, and the RBA has to push towards or above 4.85%. Allocators with existing IIB exposure can hold; new allocations may benefit from waiting for the next leg of breakeven widening.

4.7  Private Credit and Direct Lending — alongside, not instead of

AUD private credit has continued to grow into 2026, supported by the high cash-rate backdrop and the search for floating-rate income beyond traded markets. We view private credit as complementary to listed FRN and IG exposures rather than substitutive: liquidity, mark-to-market discipline and workout transparency are all weaker in the unlisted space, and those costs should be priced explicitly in any allocation decision rather than ignored in the pursuit of higher coupons. The right framing is that private credit pays an illiquidity premium and a complexity premium; both must be earned by the manager rather than assumed.

5.  What Could Go Wrong — Risks Specific to AUD Credit

An AUD credit investor reading this paper deserves an explicit account of what would prove the central thesis wrong, and what specific risks attach to credit beyond the standard rate-cycle considerations:

Inflation persistence and a higher terminal rate. If second-round effects from the energy shock materialise in the Q2 trimmed mean print, the RBA may push towards or above 4.85%. The capital value of fixed-rate IG, Tier 2 and longer-duration positions would re-mark lower; FRN income would improve further. The asymmetric protection in FRNs is the strongest argument for that segment as a core position rather than a tactical one.

Default and recovery in private credit. The combination of higher rates and slower growth tightens borrower cashflow. Diversified, well-underwritten private credit portfolios with appropriate covenant packages and recovery discipline should perform; less disciplined portfolios may not. Manager selection has rarely mattered more.

Call extension risk on Tier 2. Investors price Tier 2 to first call. If APRA or the issuer determines not to call, the security extends to legal maturity at a floating-rate coupon. Portfolios with concentrated call dates in any 12-month window are especially exposed.

Liquidity in stress. AUD credit liquidity is good in normal markets and thinner in stress. Position sizing should reflect realistic exit conditions, not tight-spread average-day conditions. This applies more to subordinated paper and private credit than to IG senior.

Issuer concentration. The four major banks plus Macquarie Bank dominate AUD investment-grade (IG) financial credit. A diversified portfolio across these issuers does not necessarily achieve diversified bank-system credit risk; portfolio-level limits should reflect underlying common-factor exposure.

Cross-currency basis. AUD investors comparing AUD credit to offshore equivalents must compare on a like-for-like basis swapped to AUD. Headline yield differences between the same issuer’s AUD and USD lines often reflect the basis, not the credit.

None of these risks invalidates the central case in this paper. They calibrate it. AUD credit allocations sized appropriately, diversified across issuers and structures, and stress-tested against plausible downside scenarios remain — in our view — one of the more compelling deployments of new capital in the current Australian market.