Chloe KennedyThe Reserve Bank of Australia raised the official cash rate by 25 basis points to 4.60 per cent on 29 September 2026, the fourth increase of the year and the highest cash rate since 2011. Governor Michele Bullock cited persistent trimmed mean inflation at 3.6 per cent — well above the RBA's 2–3 per cent target band — as the justification for the board's move, with markets now pricing a 48 per cent probability of a fifth hike in November.
For mortgage holders, the headlines are predictable. But for Australia's 2.5 million small business owners carrying variable-rate commercial debt, today's decision carries a different set of pressures — and, for those who act immediately, a closing window to protect cash flow before the next potential hike.
What 4.60% Actually Means for Your Business Facilities
Rate hikes flow through to business lending faster than most owners realise. Standard variable commercial term loans typically price at 2.5 to 3.5 percentage points above the RBA cash rate. With today's move to 4.60 per cent, floating-rate business facilities now attract rates of roughly 7.1 to 8.1 per cent — levels not seen since the pre-global financial crisis period.
Unsecured overdrafts and business credit cards carry even higher margins, with many lenders applying 4 to 6 percentage points above the RBA rate. For a retail operator running a $50,000 revolving overdraft, the cumulative effect of 2026's four consecutive hikes — from 3.60 per cent in January to 4.60 per cent today — adds approximately $500 per year in interest charges on that facility alone, based on published lender margins and a representative 4-percentage-point overdraft spread.
The February, April, and June hikes already compressed cash flow buffers for many businesses. Today's fourth increase means operators carrying combined commercial debt of $500,000 — a mix of term loan and equipment finance, typical for a tradesperson-led SME — now face cumulative monthly repayment increases of more than $1,200 compared with conditions at the start of the year.
According to the Reserve Bank of Australia's official rate decision history, this is the steepest hiking cycle since 2009, with the cash rate rising 200 basis points since late 2025.
Why Small Business Owners Are More Exposed Than Mortgage Holders
Homeowners and small business owners both feel rate rises, but the mechanics differ in three ways that make business debt more sensitive:
Shorter terms, faster repricing. A commercial property loan of 15 years with a 5-year fixed expiry — common among tradespeople and small retailers — means that a larger proportion of each repayment is interest rather than principal. As rates rise, there is less equity accumulation to offset the cost. Fixed terms are also shorter, meaning many SME owners will face a refix at current rates within 12 to 18 months regardless of today's decision.
Multiple facility types repricing asynchronously. Most small businesses carry a mix of term loans, equipment finance, and a revolving credit facility. Each reprices at different intervals. The cumulative impact of four RBA hikes lands in stages — just as one product adjusts, another is reviewed — creating a rolling cash flow disruption rather than a single, manageable shock.
Cash flow hits before the tax benefit. Business loan interest is generally deductible, which softens the annual after-tax cost. But that tax benefit arrives at lodgement time — months later. The repayment increase lands on the first statement date after each hike. For a business operating on tight margins, that timing gap is material.
A Concrete Case: The Melbourne Tradie at the Refinancing Crossroads
Consider a small construction firm operating out of Melbourne's outer suburbs — a composite profile typical of a trades-based SME in the $1–3 million revenue bracket. In January 2026, the owner was servicing a $400,000 commercial term loan at a variable rate of 6.35 per cent (reflecting a 2.75 per cent bank margin over the then-cash rate of 3.60 per cent). Monthly repayments on a 20-year term sat at approximately $3,420.
By 29 September 2026, that same loan — now priced at 7.35 per cent following today's hike — demands $3,748 per month. That is a $328 per month increase, or $3,936 over a full year, compared with January conditions.
Now apply a simple refinancing calculation. If that business owner fixed the rate in April 2026 at a 3-year fixed commercial rate of 6.80 per cent (an option multiple lenders were advertising at the time), the monthly repayment would be $3,540 — saving $208 per month versus today's variable exposure, or roughly $2,500 per year across the fixed term.
If the RBA follows through with a widely forecast November hike to 4.85 per cent, that same variable loan climbs to $3,870 per month — a $450 per month gap versus the fixed alternative, or $5,400 per year. The window to secure commercial refinancing before the November meeting is approximately five to six weeks, accounting for standard lender processing times for a business application.
This single calculation — run correctly across the full debt stack — is often worth several thousand dollars per year in preserved cash flow. A majority of small business owners never have it formally modelled.
When to Call a Wealth Management Specialist
The instinctive response is to ring your existing bank. But banks present only their own products within their own credit appetite, using internal models that prioritise institutional risk. An independent wealth management consultant reviews the complete picture:
- Total business debt structure across all facilities — term loans, equipment finance, overdraft
- Optimal split of fixed versus variable exposure matched to your industry's cash flow cycle
- Refinancing options across multiple lenders, not just your current relationship bank
- Tax-effective debt structuring to maximise interest deductibility as rates increase
- Scenario modelling if a further November hike pushes total repayments past a viability threshold
The RBA's current hiking cycle has already triggered a refinancing surge that the market has documented: external refinancing hit $42.9 billion in the March 2026 quarter, according to Finder's analysis of ABS lending data — up 8.7 per cent year-on-year. But that activity has been dominated by mortgage holders, not SME operators. Business owners typically lack the time or specialist knowledge to navigate commercial refinancing options independently, and many are unaware that break costs on variable-rate commercial loans are often lower than on residential mortgages.
A one-hour consultation with a qualified wealth management specialist can identify whether refinancing makes structural sense, at what rate differential the switch becomes cost-neutral, and what timing constraints apply under your current loan terms.
What to Do Before the November Meeting
With 48 per cent of economists now predicting a fifth hike to 4.85 per cent in November, the window for business owners to act in an orderly, informed way is approximately five weeks. Here is a concrete four-step sequence:
Step 1 — Audit your current facilities. List every loan, overdraft, and credit facility: its rate type (fixed, variable, revolving), its current rate, its remaining term, and any break or exit fees applicable to early refinancing.
Step 2 — Model the November scenario. Apply the 4.85 per cent cash rate to every variable facility and calculate the total monthly repayment impact. If the combined monthly increase versus January 2026 conditions exceeds $600, the case for a formal review is strong.
Step 3 — Act before the rush. Lenders process commercial refinancing applications over three to six weeks. A decision made in October can settle before November's announcement. A decision made after a November hike starts from a higher base — and competes with every other business owner who waited.
Step 4 — Get professional advice before signing. Rate comparison sites are a starting point, not a strategy. A qualified wealth management consultant can model the full scenario across your specific tax position, industry cash flow patterns, and lender options — identifying savings that a generalist or bank representative will not surface.
Disclaimer: This article is general financial information only. It does not constitute personal financial advice. You should consider your own circumstances and consult a licensed financial adviser before making any financing decisions.
Expert Zoom connects Australian small business owners directly with qualified wealth management consultants and financial advisers for on-demand consultations — no waiting lists, no referral chains. For more context on how the RBA's rate cycle is reshaping Australian borrowing decisions, see RBA Hikes to 4.10%: What Two Consecutive Rate Rises Mean for Borrowers.
