You have found the house you want. It might be in the right school catchment, closer to work, have the extra bedroom your family needs, or simply be the type of property that does not come onto the market very often.

There is just one problem.

You have not sold your current home yet.

This is where many homeowners face one of the biggest decisions involved in upgrading:

There is no universally correct answer. Selling first gives you certainty about how much money you have available, but creates the risk that you sell your home and cannot find the property you actually want.

Buying first solves that problem, but replaces it with another risk: for a period, you may own two properties and carry considerably more debt.

Bridging finance is one way of managing that second scenario. But before looking for a bridging loan, it helps to understand the decision you are actually making.

This is generally done using a bridging loan . Bridging finance is short-term lending that covers the period between buying the next property and receiving the proceeds from selling the existing one.

But approval is only one part of the equation.

Before buying first, you need to understand:

• how much debt you could temporarily carry;
• what debt may remain after you sell;
• what sale price the strategy relies upon;
• how interest is treated during the bridging period;
• how long you have to sell;
• whether you can manage the cash flow; and
• what happens if the sale takes longer or produces less money than expected.

Sell First Or Buy First: Which Risk Would You Rather Carry?

Option 1: Sell First, Then Buy

You sell your current property before committing to the next one. The major advantage is certainty.

Once your property settles, you know how much equity you actually have available and can establish a much clearer budget for the next purchase.

But certainty comes with other risks. You may have to rent temporarily, stay with family, put furniture into storage or move twice. More importantly, you may sell your home and then struggle to find the property you actually want.

There can also be emotional pressure. Once you have sold, you may feel that you have to buy something, rather than waiting for the right property.

Option 2: Buy First, Then Sell

Instead of waiting, you secure your next property while you still own your current home.

This can allow you to:

• secure a property when it becomes available;
• move directly from one home to another;
• avoid temporary accommodation;
• prepare the existing property for sale after moving; and
• potentially avoid trying to coordinate two settlements perfectly.

But now the risk reverses. Instead of potentially owning no home for a period, you temporarily own two.

That creates exposure to a larger temporary debt, bridging interest, two sets of property holding costs, uncertainty around the existing property's eventual sale price and a limited timeframe in which the property needs to be sold.

How Does A Bridging Loan Actually Work?

The easiest way to understand bridging is through two numbers:

These two numbers tell very different parts of the story.

What Is Peak Debt?

Peak Debt is broadly the maximum debt position reached while you temporarily hold both properties.

Let us use a simplified example.

A simplified calculation could produce:

$300,000 + $1,500,000 + $70,000 − $100,000 = $1,770,000

Your indicative Peak Debt would therefore be:

That does not necessarily mean you will permanently owe $1.77 million. It represents the temporary debt position before you sell the existing property.

Actual lender calculations can differ and may also need to allow for interest, fees and other adjustments.

What Is End Debt?

Now assume your existing property sells for $1.2 million. If approximately $30,000 is consumed by selling costs, approximately $1.17 million remains available from the sale in this simplified example.

Apply that against the $1.77 million Peak Debt:

$1,770,000 − $1,170,000 = $600,000

Your indicative End Debt becomes:

That is a very different proposition from owing $1.77 million. That's why understanding only the Peak Debt doesn't tell you whether a bridging strategy makes sense.

The lender needs to assess the temporary position, but you also need to understand the financial position you are likely to be left with after the bridge ends.

Learn more about Peak Debt and End Debt →

The Number I Would Be Most Careful With: Your Expected Sale Price

This is where bridging calculations can become misleading.

Imagine an agent tells you:

It is tempting to build the entire strategy around $1.2 million.

But an appraisal is not a settled sale.

*Simplified example assuming $30,000 selling costs and excluding lender-specific interest, fees and other adjustments.

Nothing about the new property changed. Nothing about your income changed. The only thing that changed was the price achieved for the existing home.

Yet the expected ongoing mortgage moved from $600,000 to $800,000.

The Second Risk: How Long Will It Take To Sell?

Sale price gets most of the attention. Time can be just as important.

Every month you continue holding both properties may mean additional loan interest, council rates, insurance, strata or body corporate costs, utilities, maintenance and other property expenses.

Suppose you receive an offer of $1.15 million quickly but believe waiting another two months could produce $1.18 million.

The extra $30,000 sounds attractive.

But you have not necessarily made an additional $30,000. You need to compare the higher sale proceeds with the additional cost and risk of continuing to bridge.

Sometimes waiting produces the better result. Sometimes accepting a slightly lower offer produces the stronger overall financial outcome.

This is why bridging should not be analysed purely as a property-sale decision.

Do You Have To Make Two Full Mortgage Repayments?

Not necessarily.

This is one of the areas where lender policy becomes particularly important.

Different bridging products can treat repayments and interest differently. Some lenders may require interest payments during the bridging period. Other structures may allow some interest to be added to the bridging debt rather than being paid immediately.

The important distinction is:

It means you may not physically pay that interest from your bank account at the time. Instead, it increases the amount owing.

That may make short-term cash flow easier while increasing the amount ultimately needing to be repaid.

Can I Service The End Debt But Not Two Full Home Loans?

This is where bridging becomes more technical.

Imagine your expected End Debt is $700,000. Your household income comfortably services a $700,000 mortgage.

But if someone simply adds your existing mortgage and the entire new mortgage together, your income does not support both conventional loans simultaneously.

That does not automatically tell you whether bridging finance is available.

Lenders have specific bridging methodologies. Some may require you to demonstrate capacity to make interest payments during the bridging period. Others may assess the transition differently.

This is one reason lender selection can materially affect the outcome.

A normal home-loan servicing calculation and a bridging-loan assessment are not necessarily the same exercise.

What Happens If My Property Does Not Sell?

This deserves more attention than it normally receives. A bridging loan is not permanent finance.

It has an exit strategy:

That means there is a deadline. Maximum bridging periods and what happens at the end of that period vary between lenders.

If the property remains unsold as the bridging period approaches its limit, you should not assume the lender will simply allow the facility to continue unchanged.

So before bridging, I would want to know:

What If I Change My Mind And Decide To Keep The Existing Home?

This happens.

You buy the new home and then look at the old property and think:

Do not assume the bridging approval automatically allows this. The original credit decision may have relied on selling the existing property and using the proceeds to reduce the debt.

Keeping it changes the exit strategy.

The lender may now need to assess:

• permanent debt across both properties;
• your borrowing capacity;
• rental income;
• investment loan servicing;
• LVR;
• loan purpose; and
• potentially the loan structure.

There can also be taxation consequences when a former home becomes an investment property, so taxation advice should be obtained where relevant.

Explore Investment Property Loans →

Is Bridging The Only Way To Buy And Sell Around The Same Time?

No. And this is one of the most important points in this guide.

A bridging loan is a finance solution. It is not automatically the best transaction strategy.

1. Sell First

You establish your actual sale proceeds before purchasing. This provides greater certainty but may create accommodation and timing issues.

2. Buy First Using Bridging Finance

You secure the next property and sell afterwards. This can provide flexibility but exposes you to temporary debt, interest and sale risk.

3. Coordinate The Settlements

You sell your existing property and arrange the purchase settlement around the same date. This can avoid bridging but requires the transactions to align.

4. Negotiate A Longer Settlement

This option is often overlooked. If you sell your property with a longer settlement period, you may create additional time to find and purchase the next home.

5. Keep The Existing Property

This is not really a bridging strategy. It is a decision to own two properties permanently and should be assessed accordingly.

Explore Home Loans For Second Home Buyers →

What About Buying At Auction Before Selling?

This is where I would be particularly careful.

At auction, you generally need to have your finance position understood before bidding because auction contracts commonly do not provide the same finance flexibility that may exist in some private treaty purchases.

Before bidding, you should understand lender eligibility, likely property valuations, available equity, maximum purchase position, Peak Debt, End Debt, servicing, deposit requirements and the consequences of a lower sale price.

Your solicitor or conveyancer should review the contract and explain the legal consequences before you commit.

A More Realistic Bridging Example

The Situation

A couple owns a home worth approximately $1.2 million.

Their mortgage is $300,000.

They find their next home for $1.5 million.

They have $100,000 cash available toward the transaction.

Assume approximately $70,000 in purchasing costs for this simplified example.

Step 1 — Estimate Peak Debt

Existing mortgage: $300,000
New purchase: $1,500,000
Purchase costs: $70,000
Less cash: $100,000

Indicative Peak Debt: $1,770,000

Step 2 — Estimate The Sale Proceeds

Expected sale price: $1,200,000
Estimated selling costs: $30,000

Approximate net sale proceeds: $1,170,000

Step 3 — Estimate End Debt

$1,770,000 − $1,170,000

Indicative End Debt: $600,000

At first glance, this could look comfortable.

But now we stress-test it.

Now the household can make a much better decision.

That is a much more useful question than:

“Can we get a bridging loan?”

Who Is Buying First More Likely To Suit?

Buying first may be worth considering where you have:

Substantial Equity In Your Existing Property

More equity can provide greater room within the transaction, although lender LVR and servicing requirements still apply.

A Property With Reasonable Sale Prospects

A highly marketable property may present a different risk profile from a specialised property with a small pool of potential buyers.

Comfortable End Debt Servicing

The ongoing mortgage should not rely on everything going perfectly.

Adequate Cash-Flow Buffer

Property expenses can overlap, and unexpected costs can arise.

A Particular Reason To Secure The New Property Now

Perhaps the property is difficult to replace or timing matters to your family.

When Might Selling First Be The Safer Approach?

Selling first deserves serious consideration where:

• borrowing capacity is already tight;
• the expected End Debt is close to your comfortable limit;
• there is little room for the existing property to sell below expectations;
• the outgoing property may take a long time to sell;
• cash-flow buffers are limited; or
• certainty matters more than securing the next property immediately.

There is nothing inherently superior about bridging.

Sometimes the strongest lending strategy is not taking the additional loan at all.

Before You Buy First, Run These Five Numbers

1. Existing Property Value

Use a realistic assumption rather than simply the highest appraisal.

2. Current Mortgage

Know the actual payout position, not an approximate balance from memory.

3. Peak Debt

What could you temporarily owe while holding both properties?

4. Conservative End Debt

Do not calculate this using only your ideal sale price.

5. Monthly Holding Cost

What does owning both properties cost if the sale takes longer than planned?

Once you understand these five numbers, the decision becomes much clearer.

Estimate Your Borrowing Power →

How Triple O Finance Approaches The Decision

This is where we use our Finance Navigator Framework.

We do not begin with:

We begin by understanding the decision you are trying to make and then work through the five stages.

Stage 1 — Understand Your Situation (Orientation)

Why are you buying before selling? Is there a particular property you are trying to secure? What is the realistic timeframe? What is your current mortgage position, available cash and expected sale position? Would you consider selling first if the bridging numbers do not work?

Stage 2 — Assess Your Options (Risk Mapping)

We examine Peak Debt, expected sale proceeds, conservative sale scenarios, End Debt, servicing, cash-flow requirements, time risk and the consequences if the sale does not go according to plan.

Stage 3 — Build the Right Strategy (Path Design)

We compare the available paths. That may include buying first with bridging finance, selling first, coordinating settlements, negotiating a longer settlement or, where appropriate, assessing whether retaining the existing property is financially viable.

Stage 4 — Manage the Application (Execution)

Once the strategy has been established, we compare suitable lender policies, coordinate the required information and valuations, structure the application and manage the lending process through approval and settlement.

Stage 5 — Support Beyond Settlement (Control)

The strategy does not necessarily finish when the new property settles. Where the existing property is still to be sold, the bridging position needs to progress toward its intended exit. Once the sale settles and the temporary debt is reduced, the remaining loan position can be reviewed against the structure originally planned.

So, Should You Buy Before You Sell?

There is no universal answer.

If you sell first, you carry the risk of having sold your home before finding the next one.

If you buy first, you carry the risk of temporarily owning two properties while waiting for one to sell.

Bridging finance can help solve the timing problem. It does not eliminate the financial risks involved.

For some homeowners, buying first provides exactly the flexibility they need. For others, the numbers may show that selling first is the more comfortable option.

The decision becomes much easier once you understand your Peak Debt, conservative End Debt, likely sale proceeds, servicing position, holding costs and cash-flow buffer before signing the next contract.

General information only. This article does not constitute financial, taxation or legal advice. Bridging finance eligibility, servicing methodology, LVR limits, loan terms, interest treatment and acceptable security vary by lender and are subject to credit assessment. Property transaction requirements also vary by state and territory. Consider obtaining independent legal, taxation and financial advice where appropriate.