Quick answer
A second mortgage business loan is secured behind your existing home or property loan, using the equity in between. Your first mortgage stays exactly as it is. Because there's no refinance to wait for, it's one of the fastest capital sources available: $20,000 to $250,000 is possible the same day, and up to $5,000,000 is possible within 24–48 hours, for business purposes only.
Key points
- Sits behind your existing mortgage — your home loan isn't refinanced.
- $20k to $250k possible same day; up to $5m possible within 24–48 hours.
- Uses equity in residential or commercial property.
- Business purposes only, with a clear plan to repay.
- Amount
- $20k – $5m
- Ranks
- Behind first mortgage
- Same day
- $20k – $250k possible
- Large amounts
- 24–48 hours possible
Why is a second mortgage so fast?
Because nothing has to be undone first. Refinancing a home loan means waiting for your existing lender to calculate a payout, prepare a discharge and settle — which can take weeks. A second mortgage skips all of that. Your first mortgage stays in place, untouched, and the new lender registers its interest behind it.
The lender’s question becomes simple: how much equity sits between the value of the property and what’s owed on the first mortgage, and how will this loan be repaid? When those answers are clear, $20k to $250k is possible the same day, and up to $5m is possible within 24–48 hours.
How much can a second mortgage unlock?
Start with equity:
Equity = property value − first mortgage balance
Lenders won’t lend all of it. They lend a portion, leaving a cushion, and the size of that portion depends on property type, location, the amount and the exit strategy. Our Capital Speed Planner helps you see where a second mortgage sits on timing compared with other lanes.
| Example property | Value | First mortgage owing | Equity |
|---|---|---|---|
| Suburban home | $1,100,000 | $520,000 | $580,000 |
| Inner-city terrace | $1,600,000 | $900,000 | $700,000 |
| Small warehouse | $2,000,000 | $600,000 | $1,400,000 |
Illustrative figures only. The amount a lender will advance is less than total equity.
What do business owners use second mortgages for?
- Clearing an ATO debt before penalties and enforcement action build (ATO debt and BAS)
- Payroll and super during a cash crunch (payroll and super)
- Securing a contract that needs mobilisation money (big contract mobilisation)
- Buying stock at a discount, or ahead of a peak
- Bridging while a larger refinance or a property sale is arranged
Because it sits behind the home loan, it’s usually a short- to medium-term tool. The best second mortgages have a clear end: a sale, a refinance, a contract payment.
Second mortgage or caveat loan?
Both are fast and both use property equity, but they’re secured differently.
- Second mortgage — registered on title, behind the first mortgage. May need the first lender’s consent.
- Caveat loan — secured by a caveat on title. Quicker to put in place and often used where speed matters most or consent isn’t practical.
If consent from your first lender would take longer than your deadline allows, a caveat is usually how the money still lands on time.
What makes a second mortgage settle on time?
- Knowing the property address and approximate first mortgage balance up front
- All registered owners available to sign
- A believable exit — what pays this loan out, and when
- ID and company documents ready
- A realistic amount relative to equity
Most delays come from a co-owner who can’t be reached or a first lender who’s slow to confirm the balance. See what slows business funding down for more.
An illustrative example
A plumbing company has an $85,000 ATO debt and the ATO has started escalating. The directors own a home worth about $1.3 million with $600,000 owing. A second mortgage for $90,000, settled the same day, clears the ATO debt in full and stops the escalation. Over the next eight months the company repays from steady contract income, then discharges the second mortgage. The home loan was never touched. (Illustrative only.)
If you’re facing something similar, start your enquiry today.
First lender consent explained
Some first mortgages include a term requiring the lender’s consent before another mortgage is registered on the property. Others don’t. Where consent is needed, it can take time — the first lender may want to see details of the second mortgage before agreeing.
If consent would take longer than your deadline allows, a caveat loan is often used first, with a registered second mortgage put in place later if a longer term is needed. Your specialist will check what your first mortgage requires.
Using commercial property
Second mortgages aren’t only for homes. Commercial property — a warehouse, shop, office or factory — can carry a second mortgage behind the existing commercial loan. Commercial security can be a good way to keep the family home out of a business deal, provided there’s enough equity behind the first loan. Lenders will look at the property type, location, any leases in place and the existing lender’s position.
Planning the exit
Because a second mortgage sits behind your main loan, lenders look closely at how it ends. Common exits:
- trading cash flow over a set period
- a large contract payment
- sale of an asset or property
- a refinance that combines both loans into one once the business’s position improves
Write the exit down before you apply. If it’s a refinance, talk to the intended lender early about what they’ll need to see. If it’s trading, show that the repayments fit comfortably within your recent bank statements.
Is a second mortgage the right move for you?
A second mortgage is powerful because it’s fast, and it’s safe when it’s short, purposeful and has a planned exit. Finding out where you stand involves no credit check. We don’t spread your details across a list of lenders; one real person looks at your equity, the purpose and the timeline and calls you back. Give us accurate figures for the property value and what’s owed, and we can tell you quickly what’s realistic. Check what your equity could unlock.
Frequently asked questions
Do I need my first mortgage lender's permission for a second mortgage?
Some first mortgages require the lender's consent before a second mortgage is registered. A caveat loan is sometimes used where consent would take too long. Your specialist will check what applies.
How much can I borrow on a second mortgage?
It depends on the equity — the property's value minus what's owed on the first mortgage — and on the exit plan. Business second mortgages range from $20,000 to $5,000,000.
Is a second mortgage faster than refinancing?
Usually, yes. Refinancing means discharging and replacing the first mortgage, which takes time. A second mortgage leaves the first in place, so $20k to $250k is possible the same day.
Can I get a second mortgage with bad credit?
Often. Private second mortgage lenders focus on equity and exit. Credit issues and ATO debt are considered case by case.
What's the difference between a second mortgage and a caveat loan?
A second mortgage is a registered mortgage on title. A caveat loan is secured by lodging a caveat, which is quicker to put in place but is generally used for shorter terms.