Should You Refinance Before Buying an Investment Property?
For many investors, the sequence goes something like this:
Find property → make offer → call broker → organise finance.
Sometimes that works perfectly well. But if you already own property and want to grow your portfolio, there may be a better sequence:
Review finance → understand equity → assess borrowing capacity → then prepare for the next purchase.
Why? Because the loans you already have can influence the loan you want next.
Refinancing isn't just about getting a lower interest rate
When people hear “refinance”, the first question is usually: “How much can I save on my interest rate?” That's an important question. But for investors, it's not the only one. I also want to know:
● Is your existing lender still suitable?
● Is your current loan term restricting borrowing capacity?
● Is there accessible equity available?
● Should the equity be placed into a separate loan split?
● Are unused credit limits affecting servicing?
● How will the lender assess your existing investment debt?
● Does your current structure support another purchase?
Sometimes saving 0.10% or 0.20% isn't the biggest opportunity. The bigger opportunity may be putting your overall lending structure in a better position for what you want to do next.
Your existing loans can affect your borrowing capacity
Imagine two borrowers with the same income and the same amount of debt. Their borrowing capacity can still differ depending on how their lending is structured and which lender is assessing the application. Different lenders may treat things such as:
● rental income
● existing home loan repayments
● credit card limits
● bonuses and overtime
● self-employed income
● investment expenses
● existing interest-only loans
differently. This is one reason an investor's maximum borrowing capacity isn't one universal number — different lenders can produce different outcomes.
Could extending your loan term improve cash flow or servicing?
Suppose you originally took a 30-year loan several years ago and now have only 22 years remaining. When refinancing, it may be possible — where appropriate — to establish a new loan over a longer term. That can reduce the contractual monthly repayment used in certain servicing calculations and potentially improve cash flow.
But extending a loan term also means you could pay interest for longer if you simply make minimum repayments. So this shouldn't be done automatically — it should have a purpose. The question is:
Does the new structure support your broader strategy?
Refinancing may also allow you to access equity
If the value of your existing property has increased, refinancing may allow you to establish a separate equity facility. That equity could potentially help fund:
● the next property's deposit
● stamp duty
● conveyancing
● lender costs
● other eligible acquisition costs
This can reduce the amount of cash you need to contribute personally. Again, accessing equity means borrowing more money, so the strategy still needs to make sense from a servicing, cash-flow and risk perspective.
Why separate loan splits matter
Imagine releasing $150,000 from your home. You could simply add $150,000 to one existing mortgage. But now you've potentially mixed different loan purposes together. For investors, a cleaner structure could involve:
Split A: Existing home debt
Split B: Equity specifically for investment purposes
The new investment property then has its own loan. This separation can make record keeping significantly easier, and may also help your accountant trace how borrowed funds were used when considering potential tax deductibility. Tax rules can become complicated, particularly if borrowed money is mixed between personal and investment purposes — get tax advice before implementing a structure based on potential deductions.
Why organise this before you find the property?
Because finance tends to become much more stressful when there's already a contract involved. Suddenly there are deadlines, valuations, formal approval, finance clauses, deposit requirements, settlement dates.
Instead, imagine already knowing:
Your available equity: approximately $180,000
Additional borrowing capacity: approximately $650,000
Indicative total purchase range: approximately $800,000
Preferred lender strategy: already considered
Now you're not trying to discover your financial position while simultaneously buying — you've separated the two decisions.
Finance tells you what is possible. You then decide whether and when to purchase.
Does refinancing always make sense?
No. There are situations where remaining with your current lender could be preferable, for example:
● significant fixed-rate break costs
● refinancing would trigger LMI
● the interest savings don't justify switching costs
● your existing lender has a particularly useful policy
● you plan to sell soon
● servicing doesn't support the proposed refinance
● the new structure would leave you worse off overall
A good refinance strategy isn't “move lenders because we can.” It's “make a change because it improves your position.”
The bigger question investors should ask
Rather than simply asking “What's the cheapest rate?”, try asking:
“Which lending structure puts me in the strongest position for my next move?”
Sometimes the answers will be the same. Sometimes they won't. That's where strategic mortgage advice becomes useful.
Quick questions
Should I always refinance for a lower interest rate before buying again?
Not necessarily. Rate is one factor, but lender policy, loan structure and how much borrowing capacity is preserved for your next purchase often matter more for investors building a portfolio.
Does refinancing always mean I can access equity?
Not automatically. Access depends on your property's current valuation, your existing mortgage balance, and whether your income and expenses support the additional borrowing.
When does it make sense to stay with my current lender?
Staying put can make sense if you'd face significant break costs, trigger LMI by switching, or if your current lender's policy already suits your circumstances better than the alternatives.
