How to Protect Your Borrowing Power From an Interest Rate Rise When Self-Employed

An interest rate rise hits self-employed borrowers twice. Your repayments go up, and the amount a lender will offer you goes down, because lenders test your application at a higher rate and many read business income cautiously. The RBA lifted the cash rate to 4.60% on 29 September 2026, its fourth rise this year, and its next decision is on 3 November. Below we work through what another rise costs and the steps that protect your borrowing power.

The RBA cash rate is 4.60%. The Monetary Policy Board raised it by 0.25% on 29 September 2026. That followed three rises in February, March and May, which took the rate from 3.60% to 4.35%, and holds in June and August.

Inflation is driving it. Headline inflation rose to 4.0% in the 12 months to August, up from 3.5% in July, and trimmed mean inflation held at 3.6%. Both are above the RBA's 2 to 3% target. In its September statement the Board said it would increase the cash rate further if needed.

The next decision is on Tuesday 3 November 2026, announced at 2.30pm. September inflation figures are released on 28 October, so the Board will have fresh data before it meets. The major banks are split, with some forecasting another rise in November and others expecting a hold. For planning, assume the next move is up and know what it does to your numbers before it happens.

On a 30-year principal-and-interest loan, a 0.25% rise adds roughly $16 to $17 a month for every $100,000 you owe. At the rates in the table below, that is about $83 a month on a $500,000 loan and about $124 a month on $750,000, or close to $1,490 a year.

Hypothetical example only. Not a quote, calculator output or indication of borrowing capacity. Assumes an owner-occupier principal-and-interest loan over 30 years. Annual figures are calculated from unrounded monthly amounts.

Two more rises before the cycle turns would roughly double those figures. To run your own loan, use our loan repayment calculator.

For a PAYG borrower, a rate rise is mainly a budgeting question. For a self-employed borrower, it is also a borrowing capacity question.

Lenders cut your borrowing capacity as well as raising your repayments, and self-employed income gives them more room to be cautious.

• Income is assessed on net profit. Many lenders use your net profit after expenses, often averaged over two years, rather than your turnover. A strong year can be pulled down by a quiet one.

• Uneven income is discounted. APRA's lending guidance says banks should discount most non-salary income, such as bonuses and overtime, by at least 20%. Some lenders apply similar caution to business income that swings with seasons or projects.

• Documentation affects your rate. If you can't provide full financials, low doc and alt doc loans may be an option, but they commonly carry a higher rate. Each cash rate rise then lands on a higher starting point.

Lenders don't test you at today's rate. APRA expects banks to check you could still repay at your loan rate plus 3 percentage points, a buffer it confirmed on 28 May 2026. When your rate rises, the test rate rises with it, so the most you can borrow falls even if your income stays the same.

Hypothetical example only. Not a quote, calculator output or indication of borrowing capacity. Real assessments also include living expenses, other debts and each lender's own policy.

In this example, one rise cuts the maximum loan by about $16,000 with no change to income. Getting assessed before the next rise can mean qualifying for more.

Present the strongest accurate version of your income to a lender whose policy suits it. These are the levers we use most.

Add-backs are non-cash or one-off expenses that a lender adds back to your net profit to work out your assessable income. Common examples include depreciation, extra super contributions, one-off purchases, interest on debts being refinanced and the non-recurring part of some expenses. Applied correctly, they can lift your assessable income and offset capacity lost to a rate rise. Each lender has its own add-back rules, so knowing them makes a real difference.

Policies vary widely. Some lenders average two years of income. Others will use the most recent year if it is higher, or take a favourable view of a strong upward trend. Matching your figures to the right policy can change your borrowing capacity materially.

Lodge your returns and BAS on time, keep business and personal accounts separate, and reduce or close credit limits you don't use. Many lenders assess a credit card at about 3% of its limit each month, whatever the balance. On that basis, a $20,000 limit counts as a $600 monthly commitment even if you clear it in full.

Hypothetical example only. Not a quote, calculator output or indication of borrowing capacity.

Current, clean financials widen the pool of lenders who will consider you at full-doc rates. Check the documents lenders ask self-employed applicants for before you apply.

If a purchase or refinance is coming up, a pre-approval gives you a current figure to work with. Our borrowing capacity calculator is a quick first check.

If you want an assessment against lenders that treat business income fairly, start with our guide to self employed home loans.

1. Check your current position. Find your rate, balance and remaining term on your latest statement.

2. Model the next rise. Use the table above to see what one or two more 0.25% rises add to your repayments.

3. Bring your financials up to date. Lodge your returns and BAS, reduce unused limits and separate business and personal accounts.

4. Ask about add-backs. Have a broker review what can be added back to your assessable income.

5. Get assessed now. A current pre-approval shows where you stand before the decision.

Not sure what the next rise does to your numbers? We specialise in self-employed lending and work with 50+ lenders. Book a free consultation and we'll assess your borrowing power before the next RBA decision.

No one can say for certain. The RBA lifted the cash rate to 4.60% on 29 September and said it may lift it further if needed. Its next decision is on 3 November 2026, after September inflation data comes out on 28 October. Some major banks expect a rise, others a hold.

Roughly $16 to $17 a month for every $100,000 you owe on a 30-year principal-and-interest loan. In our hypothetical example, a move from 6.50% to 6.75% adds about $83 a month on a $500,000 loan and about $124 a month on $750,000, or close to $1,490 a year.

Add-backs are non-cash or one-off expenses, such as depreciation, extra super contributions or a one-off purchase, that a lender adds back to your net profit to work out a fairer assessable income. Policies vary by lender, but used correctly they can lift your borrowing capacity and offset some of the capacity lost when rates rise.

Lenders test whether you could repay at your loan rate plus APRA's serviceability buffer of 3 percentage points. When the cash rate rises and your lender lifts its rates, the assessment rate rises with it. The repayment you must be able to afford goes up, so the maximum loan falls even if your income has not changed.

It can be. Many lenders assess self-employed income conservatively, and gaps in your documents can push you towards loans with a higher rate. With current financials, the right add-backs and a lender whose policy suits your income pattern, self-employed borrowers can still compete well for a loan. A broker can match you to that lender.

This information is general in nature and is not financial or credit advice. It does not take into account your objectives, financial situation or needs, and you should consider whether it is appropriate for you before acting on it.

Stryve Pty Ltd ABN 70 630 099 080 are Credit Representatives of Finsure Finance and Insurance Pty Ltd. Lending services are authorised by Finsure Finance and Insurance Pty Ltd (ACN 068 153 926) Australian Credit Licence 384704.