Loan Portability: Moving House Without Changing Your Mortgage
When you sell your home and buy another, you typically discharge your existing mortgage and take out a new one. But there's another option: loan portability. This feature lets you transfer your existing loan to your new property, potentially saving you time, money, and hassle.
What Is Loan Portability?
Loan portability (also called "substitution of security" or "security swap") allows you to:
- Keep your existing home loan
- Release it from your current property
- Reattach it to your new property
- Maintain your current rate and terms
How It Works
The Process:
- You sell your current property
- Instead of discharging the loan, you "port" it
- The mortgage is removed from sold property at settlement
- The mortgage is registered against new property
- Your loan continues under existing terms
Timeline:
- Typically needs to happen simultaneously or within short window
- Sell and purchase settlements often coordinated
- Some lenders allow short gap between transactions
- May require bridging arrangements if timing differs
When Loan Portability Makes Sense
Scenario 1: Protecting Your Fixed Rate
Situation:
- You have a great fixed rate with 2 years remaining
- Break costs would be substantial
- You want to move but keep your rate
Benefit:
- Avoid potentially thousands in break costs
- Maintain locked-in rate until term ends
- No new loan establishment costs for fixed portion
Scenario 2: Keeping Loan Features
Situation:
- Your loan has features no longer offered (grandfathered)
- Professional package with excellent terms
- Strong relationship with existing lender
Benefit:
- Retain features unavailable to new customers
- Continue established relationship
- No new credit assessment (in some cases)
Scenario 3: Time Efficiency
Situation:
- Quick settlement required
- Complex situation that might delay new loan approval
- Don't want to risk finance falling through
Benefit:
- Faster process than full new application
- Less documentation typically required
- More certainty of approval
When Portability Might NOT Be Right
Better Rates Available Elsewhere
If your current loan is uncompetitive:
- Market may offer better rates
- Switching costs might be worthwhile
- Opportunity cost of staying is real
Do the Math:
- Break costs + new loan costs vs.
- Savings from better rate over loan term
Need to Borrow More
If you're upgrading significantly:
- Existing loan limit may not be enough
- New loan might be simpler
- May need top-up loan anyway
- Single new loan often better than split structure
Current Lender Is Problematic
If you're unhappy with your lender:
- Moving is your chance to switch
- Don't port just to avoid paperwork
- Consider long-term relationship value
Loan Structure Needs Changing
If your needs have changed:
- Different product might suit better
- Opportunity to restructure
- Fresh start may be valuable
The Portability Process Step-by-Step
Step 1: Check Eligibility
Contact your lender to confirm:
- Portability is offered on your product
- You meet any policy requirements
- What documentation is needed
- Any fees that apply
Common Requirements:
- Loan must be in good standing
- New property must meet lender criteria
- Loan amount within existing approval
- Borrower circumstances haven't deteriorated
Step 2: Property Assessment
Your lender will evaluate the new property:
- Acceptable property type
- Satisfactory valuation
- Adequate security value
- No unusual risks
Properties That May Not Qualify:
- High-density apartments (some lenders)
- Rural or remote locations
- Non-standard construction
- Commercial or mixed-use
- Very small or very large properties
Step 3: Financial Assessment
Lender may reassess your situation:
- Current income verification
- Confirm employment status
- Check credit history
- Verify serviceability still meets requirements
Note: This is usually lighter than a new application, but some assessment is standard.
Step 4: Coordination of Settlements
Timing is Critical:
- Sell settlement and buy settlement must align
- Loan transfers between properties
- May need bridging if timing differs
- Work closely with conveyancer and lender
Step 5: Documentation and Registration
Final Steps:
- Discharge from old property
- Registration on new property
- Government fees paid
- Loan continues under existing terms
Portability vs. New Loan Comparison
Portability Costs
Typical Fees:
- Portability/variation fee: $200-$500
- New property valuation: $200-$600
- Government registration: $150-$200
- Legal/settlement costs: Standard
What You Avoid:
- Break costs (if fixed rate)
- Discharge fee from old lender
- Establishment fee at new lender
- Full credit assessment
New Loan Costs
Typical Fees:
- Discharge fee (old): $150-$400
- Break costs (if fixed): Variable
- Application fee (new): $0-$600
- Valuation fee (new): $0-$600
- Legal/settlement: Standard
What You Gain:
- Fresh rate negotiation
- New lender cashback offers
- Updated product features
- Clean start
Example Comparison
Scenario: Fixed rate with 18 months remaining, $5,000 break cost
Portability Route:
- Portability fee: $300
- Valuation: $400
- Registration: $180
- Total: $880
New Loan Route:
- Break cost: $5,000
- Discharge: $350
- New loan establishment: $400
- Valuation: Free (promotion)
- Registration: $180
- Less cashback: -$2,000
- Total: $3,930
Winner: Portability by $3,050
Special Portability Situations
Porting with a Top-Up
If your new property costs more:
Option A: Port and Top-Up
- Port existing loan to new property
- Take additional loan for extra amount
- May have two separate loans
- Check if this is available
Option B: Refinance Entire Amount
- Calculate if break cost is worth it
- Single new loan may be simpler
- Better rate might offset costs
- Consider long-term
Porting to a Cheaper Property
If you're downsizing:
- Port loan amount up to new property value
- Pay down excess with sale proceeds
- Check minimum loan requirements
- Consider if refinancing makes more sense
Porting with Changed Circumstances
If your situation has changed:
- Job loss or income reduction
- New dependents
- Changed credit history
- May face full reassessment
- Portability not guaranteed
Porting Between States
Moving interstate:
- Same lender, different state
- Usually possible but check
- Different government fees apply
- May involve different branch/team
Questions to Ask Your Lender
About Portability Availability
- "Does my specific loan product include portability?"
- "Are there any restrictions on the types of properties I can port to?"
- "What's the maximum loan amount I can port?"
- "Is there a time limit between selling and buying?"
About the Process
- "What documentation will I need to provide?"
- "Will I need to go through a full credit assessment?"
- "How long does the portability process typically take?"
- "Can I port if my circumstances have changed since I took out the loan?"
About Costs
- "What fees apply for portability?"
- "Are there any hidden costs I should know about?"
- "How do these costs compare to refinancing?"
- "Are any fees negotiable?"
Portability Pitfalls to Avoid
Pitfall 1: Assuming Portability Is Available
Not all loans have this feature:
- Check your loan contract
- Confirm with your lender
- Don't assume based on other products
Pitfall 2: Not Comparing to Refinancing
Portability isn't always the best option:
- Run the full comparison
- Consider long-term costs
- Factor in rate differences
- Include all fees and benefits
Pitfall 3: Timing Mismatch
Settlement timing is critical:
- Coordinate with conveyancer
- Plan for contingencies
- Understand bridging options
- Build in buffer time
Pitfall 4: Changed Property Requirements
Your new property must qualify:
- Get valuation early
- Understand lender requirements
- Have backup plan if issues arise
- Consider property type carefully
Pitfall 5: Assuming Rates Stay the Same
While portability maintains your contract:
- Variable portion can still change
- Fixed rate continues until term ends
- Future rates are not guaranteed
- Still subject to lender discretion on variable
Making Your Decision
Choose Portability If:
✅ You have a competitive fixed rate with significant break costs ✅ Your loan has valuable grandfathered features ✅ You need to move quickly ✅ New property value is similar to current ✅ You're happy with your lender
Choose Refinancing If:
✅ Better rates are available ✅ You're increasing loan amount significantly ✅ You want different loan features ✅ You're unhappy with current lender ✅ Break costs are low or zero
Get Professional Advice If:
- You're unsure which option is better
- Your situation is complex
- Significant money is at stake
- You need to move quickly
- You want comprehensive comparison
The Bottom Line
Loan portability can be a valuable tool when moving house, particularly if you have a competitive fixed rate. However, it's not automatically the best choice. Every situation requires individual analysis.
At Ding Financial, we help you compare portability against refinancing to find the best solution for your move. We'll calculate the true cost of each option and recommend the path that saves you the most.
Contact us when you're planning a move, and we'll ensure you make the most informed decision about your mortgage.