Refinancing in a Rising Market: When It Still Pays

Key takeaways

• Start by asking your existing lender to reprice — it is free and frequently works.
• On a $600,000 loan, a 0.30 point improvement saves roughly $115 a month, or $41,000 over 30 years.
• Switching costs are typically $600 to $1,500 including discharge, registration and application fees.
• Refinancing usually means passing another lender's buffered assessment, which is why some borrowers cannot move.

What is the loyalty gap worth?

On a 30-year loan, the monthly saving from a rate reduction:

Ask your current lender first. A retention team can often match a competitor without you moving at all, and the call costs nothing.

What does switching cost, and when do you break even?

Typical costs when moving lenders:

• Discharge fee at the outgoing lender: $150–$400
• Mortgage registration and transfer (state government): $150–$400
• Application or settlement fee at the incoming lender: $0–$600
• Valuation: often waived
• Break costs if you are within a fixed term: potentially significant

At roughly $1,000 total, a $115 monthly saving breaks even in under nine months. Any cashback offer shortens that further, but read the conditions — many require you to stay for a minimum period.

The trap: resetting the term

Refinancing to a fresh 30-year term after seven years of repayments lowers the repayment but restarts the clock. You return to the front of the amortisation curve, where almost everything you pay is interest.

On a $600,000 balance with 23 years remaining, refinancing to a new 30-year term at the same rate reduces the repayment by roughly $370 a month but adds well over $100,000 in total interest. Ask for the remaining term to be matched unless the lower repayment is the specific outcome you need.

Frequently asked questions

How long does refinancing take?

Typically two to six weeks depending on lender turnaround times and how quickly the outgoing lender processes the discharge. The discharge step is frequently the slowest part, so lodge that form early.

What is a mortgage prisoner?

A borrower who is meeting their current repayments but cannot pass another lender's buffered assessment, so they cannot move to a cheaper loan. Some lenders apply a modified assessment for like-for-like refinances where the debt is not increasing.

Should I consolidate other debts into my mortgage?

It lowers the interest rate on that debt but stretches it over up to 30 years, which can raise the total cost substantially. If you do consolidate, keep repaying the consolidated portion at the old, higher amount so it clears quickly.

Related reading

• Stress-Testing Your Own Budget at +3%
• Fixed vs Variable in a Hiking Cycle: The 2026 Decision Framework
• Why Home Loan Applications Get Declined: The Top 12 Reasons

Sources

• Home loan pricing and existing borrower outcomes — ACCC Home Loan Price Inquiry
• Switching home loans — ASIC Moneysmart