Interest Rate Rise Guide 2026

What An Interest Rate Rise Means For You

An interest rate rise increases the cost of borrowing, directly affecting variable mortgage repayments and borrowing capacity for new loans.  In simple terms, here’s what an interest rate rise will mean for borrowers:

1. Your repayments go up
If you’re on a variable rate loan, your lender will usually pass on the increase.
Example:
 Loan: $600,000
 Rate: 6.0% → 6.5%
 Increase: ~$180–$200/month extra
Even small rises add up quickly. 

2. More of your payment goes to interest (not your loan)
When rates rise:
 A bigger portion of your repayment = interest
 Less = paying off your actual loan
Result: the rate at which you pay off your loan slows down.  

3. Your borrowing power drops
Whether you are buying, refinancing or releasing equity, higher interest rates results in lower borrowing capacity. 
Typical example:
 Every 1% rate rise = ~10%–15% drop in borrowing capacity. 

4. Fixed rate vs variable rate impact
 If you are on a variable home loan, you will likely to see an almost immediate increase in your loan repayments as your lender passes on the increased cost of borrowing to their customers.  
 If you are on a fixed rate home loan, there are no changes to your repayments until your fixed term ends. However at the end of your term, upon negotiating a new loan, rate or fixed rate term, you may be in for a significant increase in repayments if interest rates have risen.   

5. Your total loan cost increases (a lot)
Interest compounds over time meaning that a rise in interest rates can cost borrowers a significant amount over the full life of their loan.
Example:
 $600k loan over 30 years
 6% vs 7% rate
That 1% difference can cost an additional $140,000+ interest over the life of the loan.  

6. Cash flow pressure
Higher repayments mean invevitably lead to:
 – Less disposable income
 – Decreased capacity to save for the future
 – More financial stress if not planned for

What Should You Do When Interest Rates Rise?

✔️ Review your loan:

Speak to a mortgage broker to ensure that your rate is still competitive as market conditions change or discuss refinancing options.

✔️ Build a buffer  

Aim to have 3-6 months worth of loan repayments in savings to lessen the extra burden on cashflow.  

✔️ Consider fixing your interest rates (if on a variable loan)

Talk to a mortgage broker about the pros and cons of fixing your rate.  While fixing can be attractive as it brings a lot more certainty, it can also be a risk if rates then fall at a later date while your rate is still fixed. 

✔️ Make extra repayments (if possible)

Making additional payments where possible will offset the increase in interest.

The important thing when faced with an interest rate rise is not to panic.  Talk to a mortgage broker as soon as possible to discuss your options as there are often more available that you may think.