Breaking Out of Mortgage Prison: Can Easing Serviceability Buffers Help?
Many Australian borrowers want to refinance their home loan but are being told they no longer meet lender requirements. This situation is often called mortgage prison.
Mortgage prison can happen when a borrower is making repayments on their current loan but cannot pass a new lender’s assessment to refinance. This can be frustrating, especially when refinancing may help reduce repayments, access a better rate or improve loan features.
What Is Mortgage Prison?
Mortgage prison refers to a situation where a borrower feels stuck with their existing home loan because they cannot refinance to another lender.
This can happen when:
Interest rates have increased
Borrowing capacity has reduced
Household expenses have increased
The lender applies a serviceability buffer
The borrower has less equity than required
The borrower’s income or credit profile has changed
Even if a borrower has been making repayments on time, they may still struggle to meet a new lender’s refinance assessment.
What Is a Serviceability Buffer?
A serviceability buffer is used by lenders to test whether a borrower could still afford repayments if interest rates were higher.
APRA confirmed in May 2026 that the mortgage serviceability buffer remains at 3 percentage points. This means lenders generally assess whether borrowers can afford repayments at an interest rate higher than the rate they are applying for.
This buffer is designed to support responsible lending, but it can also make refinancing harder for some borrowers.
Why Refinancing Can Be Difficult
Refinancing is not only about finding a lower interest rate. A lender will usually review your full financial situation before approving a new loan.
This may include:
Income
Expenses
Existing debts
Credit history
Property value
Loan-to-value ratio
Repayment history
Loan amount
Employment situation
Serviceability assessment
If your borrowing capacity has dropped since you first took out your home loan, refinancing may become harder.
Can Serviceability Buffer Changes Help Borrowers?
Some lenders may review refinance applications differently depending on their internal policies and the borrower’s circumstances. However, eligibility can vary from lender to lender.
Borrowers may have a better chance if they have:
Strong repayment history
Stable income
Good credit score
Lower loan-to-value ratio
No recent missed repayments
Lower existing debts
Clear refinance purpose
A mortgage broker can help review which lender options may be suitable based on your current position.
What Should Borrowers Check Before Refinancing?
Before switching lenders, borrowers should compare the full cost and benefit of refinancing.
Money-Smart recommends checking whether the benefits of switching home loans outweigh the costs. These costs may include fees, lender’s mortgage insurance, loan term changes and other refinance expenses.
Before refinancing, check:
Current interest rate
New interest rate
Comparison rate
Application fees
Discharge fees
Ongoing fees
Lender’s mortgage insurance
Loan term
Monthly repayment
Total interest over the loan life
A lower monthly repayment may look attractive, but if the loan term is extended, the total interest paid over time may increase.
Be Careful When Extending the Loan Term
One common refinance strategy is extending the loan term to reduce monthly repayments. This may help short-term cash flow, but it can increase the total interest paid over the life of the loan.
For example, moving back to a 30-year loan term may lower repayments now, but it may also keep you in debt for longer.
Before choosing this option, ask:
Will this reduce financial stress now?
How much extra interest could I pay long term?
Can I make extra repayments later?
Is there a better structure available?
Does this align with my financial goals?
Ways to Improve Refinancing Readiness
If you are currently unable to refinance, there may still be steps you can take to improve your position.
You may consider:
Reducing credit card limits
Paying down personal debts
Reviewing household expenses
Maintaining clean repayment history
Building more equity
Checking your credit score
Preparing income documents
Speaking with a mortgage broker before applying
Using a mortgage calculator can also help estimate repayments, borrowing power and repayment scenarios before making a decision.
How Uniko Capital Can Help
Navigating refinancing and serviceability requirements can be stressful. Uniko Capital can help borrowers understand their options and compare lenders based on their financial situation.
Our team can assist with:
Reviewing your current home loan
Checking refinance options
Understanding serviceability requirements
Comparing lender policies
Reviewing loan features and fees
Preparing your refinance application
Explaining potential risks and benefits
If you feel stuck in mortgage prison, getting professional guidance may help you understand whether refinancing is possible and what steps may improve your chances.
Final Thoughts
Mortgage prison can be frustrating for borrowers who want to refinance but cannot meet lender requirements. Serviceability buffers, interest rate changes and lender policies can all affect borrowing capacity.
Before refinancing, compare the full cost, check your eligibility and understand the long-term impact of any loan change.
If you are unsure whether refinancing is right for you, speak with Uniko Capital and explore your home loan options with expert guidance.
CTA: Speak with a refinance specialist at Uniko Capital today.
Disclaimer: This blog provides general information only and does not constitute financial advice. Home loan approval, refinancing eligibility, rates, fees and terms depend on lender criteria and individual circumstances. Always seek professional advice before making a finance decision.
