Can One Spouse Own Part of a Property Without Being on the Home Loan?

Can a home loan be in one spouse’s name when both partners are on the property title?

Learn how Australian lenders assess co-owners, co-borrowers, guarantors, trusts and joint debts.

A home loan does not always need to be in both partners’ names simply because both partners have an ownership interest in the property.

The structure is lender-specific and can be more complicated than allocating the property 80% to one spouse and 20% to the other.

Where two people own the property but only one is borrowing, the lender must still obtain an enforceable mortgage over the whole property. This normally means the non-borrowing owner must participate in the transaction, often as a security guarantor or mortgagor.

Some lender policies allow this. Others require all registered owners to be borrowers, particularly where both incomes are needed or the ownership structure has been designed to improve borrowing capacity.

Can a property be owned 80/20?

Yes. Two purchasers can generally hold property as tenants in common in unequal proportions, such as:

• 80% and 20%;
• 90% and 10%; or
• another agreed ownership split.

The ownership percentages are recorded on the title.

This is different from owning as joint tenants, where the owners hold the property jointly rather than through defined percentage shares.

The ownership structure can affect:

• each party’s legal interest;
• tax outcomes;
• estate planning;
• access to sale proceeds;
• rental income and deductions;
• land tax;
• stamp duty;
• first home buyer eligibility; and
• what happens if the relationship ends.

The ownership split should be determined with legal and taxation advice rather than selected solely to obtain finance.

Does each owner need to be on the loan?

Not necessarily, but every owner will generally need to be involved in the mortgage documentation.

A lender needs security over the property as a whole. A mortgage over only one owner’s 80% interest may be difficult to enforce or sell if the loan defaults.

Where one spouse is the sole borrower and the other owns 20%, the non-borrowing owner may need to act as:

• a co-owner guarantor;
• a security guarantor;
• a third-party mortgagor; or
• another form of security provider recognised by the lender.

The exact terminology differs between lenders.

Some lender policies do not accept this structure and instead require both owners to become co-borrowers.

What is the difference between a co-borrower and a guarantor?

The distinction is significant.

Co-borrower

A co-borrower is directly liable for the home loan.

Where two people are jointly borrowing, each may be responsible for the full outstanding loan rather than only their ownership percentage.

For example, a person owning 20% of the property may still be liable for 100% of the joint home loan if the other borrower stops paying.

The lender does not usually limit that borrower’s liability to 20%.

Security guarantor

A security guarantor provides their property interest as security for another person’s loan.

Depending on the guarantee documents, their liability may be:

• limited to the secured property;
• limited to a specified amount; or
• broader than the value of their ownership share.

The lender may require independent legal advice before accepting the guarantee.

A person should not assume that being described as a guarantor creates only a minor obligation. The legal documents determine the extent of the liability.

Why would only one spouse be on the loan?

Common reasons include:

• one spouse has a stronger credit history;
• one spouse has significantly higher income;
• the other spouse is temporarily unemployed;
• one spouse has business or trust liabilities;
• one spouse is not eligible under a particular lender policy;
• the parties want a particular ownership structure;
• one spouse is a temporary resident;
• a spouse wants to preserve future borrowing capacity; or
• the property is being purchased as part of a wider tax or estate plan.

Leaving someone off the loan does not automatically improve the application.

The lender may still need to consider that person’s income, expenses, debts and relationship to the borrower.

What is the substantial benefit test?

Lenders generally do not want someone added as a borrower solely to increase borrowing capacity or provide additional security.

A co-borrower is normally expected to receive a genuine benefit from the loan.

A benefit may arise where the person:

• acquires a meaningful ownership interest;
• receives part of the loan funds;
• has an existing debt refinanced;
• will live in the owner-occupied property;
• shares finances with a spouse or de facto partner; or
• receives another identifiable financial benefit.

Several lender policies explicitly refer to substantial benefit when assessing multiple borrowers.

Westpac and St.George require the substantial benefit test to be met where there are multiple co-borrowers in relevant transactions.

NAB’s lender policy states that co-borrowers generally need to receive substantial benefit unless they are spouses or de facto partners. Spouses without substantial benefit remain subject to separate eligibility requirements.

Police and Nurses Limited’s lender policy contains a particularly detailed co-borrower test. It generally regards an ownership share greater than 10% as potentially significant, but also considers whether the person will live in the property or receive another direct benefit.

That does not create an industry-wide 10% rule. Other lenders may apply a different test or require both owners to borrow regardless of the percentage split.

Is owning 20% enough to make someone a legitimate co-borrower?

A 20% ownership interest provides a clear direct benefit, but it does not settle every policy issue.

The lender will still consider:

• whether the person understands the loan;
• whether they are receiving an appropriate benefit;
• whether the ownership split is genuine;
• whether their income is being used;
• whether their debts have been disclosed;
• whether they can service the loan;
• whether there is a risk of financial abuse;
• whether the structure is suitable; and
• whether the title and loan documents are consistent.

A person should not be added as a 20% owner merely to satisfy a perceived lending technicality.

Ownership creates real legal and financial consequences.

Can the 80% owner be the only borrower?

Potentially.

A lender may accept:

• the 80% owner as the sole borrower; and
• the 20% owner as a co-owner or security guarantor.

This arrangement is more likely to be considered where:

• the sole borrower can service the loan without the co-owner’s income;
• the non-borrowing owner receives independent legal advice;
• the lender can take security over the whole property;
• the structure satisfies the lender’s guarantee policy;
• the purpose and ownership split are fully disclosed; and
• the non-borrowing owner is not being used to conceal debts or avoid policy.

Not every lender offers co-owner guarantees.

One detailed lender policy describes a co-owner guarantee as an arrangement where two or more people own the property but only one applies for the loan. The non-borrowing owner guarantees the borrower’s obligations so the lender can take security over the full property.

Other lenders may require the 20% owner to be a joint borrower.

Can the 20% owner’s income be used without adding them to the loan?

Generally, their income cannot be treated as borrower income while they remain outside the loan.

A lender may consider a non-borrowing spouse’s income for limited purposes, such as determining:

• the spouse’s contribution to household expenses;
• whether shared debts can be apportioned;
• whether the spouse can meet their own commitments; or
• whether the borrower bears all household expenses.

That is different from adding the spouse’s full salary to borrowing capacity.

Where the application requires the spouse’s income to meet the proposed home loan repayment, the lender will normally require that person to become a co-borrower.

Can one spouse be on the loan but not the title?

Sometimes, particularly for spouses or de facto partners, but this is also lender-specific.

A borrower who has no ownership interest may still receive a benefit where:

• the property will be their principal place of residence;
• their spouse owns the property;
• household finances are combined; and
• the borrowing supports the couple’s shared housing needs.

Some lenders allow this spousal structure. Others expect every borrower to have an ownership interest.

A non-owner borrower remains liable for the loan despite not holding a registered share of the property. That person should obtain independent legal advice about the difference between debt liability and property ownership.

Does being married make the structure automatically acceptable?

No.

Spousal relationships may provide more flexibility under some lender policies, but the lender still needs to assess:

• loan purpose;
• benefit;
• property ownership;
• capacity to repay;
• debts and living expenses;
• potential financial abuse;
• guarantee requirements; and
• the reason one spouse is excluded.

A lender may be particularly cautious where the proposed structure leaves one spouse with:

• full or substantial debt liability;
• little or no ownership;
• no access to the loan funds; and
• no clear benefit.

What happens to future borrowing capacity?

Being left off the new loan may preserve some borrowing capacity, but the result is not guaranteed.

The person is a co-borrower

The full home loan may appear on their credit report and may be included in future servicing.

Even if they own only 20%, they may be legally responsible for the entire debt.

The person is a guarantor

The guarantee may still need to be disclosed to another lender. Some lenders include guaranteed debt in full, while others assess the actual or contingent commitment according to their policy.

The person is a non-borrowing owner

Their ownership interest may affect:

• first home buyer status;
• access to government schemes;
• tax calculations;
• future security positions; and
• the ability to sell or refinance the property.

Leaving a spouse off the loan should not be treated as a simple method of protecting future borrowing capacity.

Related research: Can a Fully Maintained Company Car Increase Your Home Loan Borrowing Capacity?

What if one spouse already has properties in a trust?

Properties owned through a trust can still affect a personal home loan application.

The lender may investigate:

• whether the applicant is a trustee;
• whether the applicant is a director of the corporate trustee;
• whether the applicant is a beneficiary;
• whether the applicant has guaranteed the trust loans;
• whether the trust is financially self-sufficient;
• whether trust distributions are being used as income;
• whether the trust has debts or losses; and
• whether the applicant regularly contributes personal money to the trust.

An applicant cannot generally disregard trust liabilities simply because their personal name is not recorded as the property owner.

If the applicant has provided personal guarantees for trust debts, the lender may include those commitments when assessing the new loan.

Some lender policies allow financially self-sufficient company or trust debts to be excluded where supporting financial evidence is provided. Other policies include the debt unless strict conditions are satisfied.

Can trust property ownership affect first home buyer eligibility?

Potentially.

Government concessions and guarantee schemes apply their own definitions of previous property ownership.

A person may be treated as having held a property interest where they owned property:

• personally;
• jointly;
• through certain trust structures;
• as a beneficiary with a relevant interest; or
• in another form captured by the applicable rules.

The treatment differs between stamp duty concessions, grants and government guarantee schemes.

Applicants should not assume they are first home buyers merely because all previous properties were purchased through a trust.

The relevant state revenue office, government scheme rules and legal structure need to be checked.

How are existing joint debts treated?

Where a borrower already holds a joint home loan with another person, lenders often begin with the position that the borrower is liable for the whole commitment.

This reflects the fact that each joint borrower may be responsible for all repayments if the other person stops paying.

Some lender policies allow a joint debt to be apportioned where there is evidence that the other borrower:

• earns sufficient income;
• consistently pays their share;
• is not financially dependent on the applicant; and
• can meet the remaining repayments.

The availability of debt apportionment varies substantially.

Owning only 20% of a property does not mean a lender will assess only 20% of the associated loan.

Example: wife borrows, husband owns 20%

A couple wants to purchase an owner-occupied property for $900,000.

The proposed structure is:

• wife owns 80%;
• husband owns 20%;
• wife is the only borrower;
• the husband’s income is not needed; and
• the lender takes a mortgage over the whole property.

A lender that permits co-owner guarantees may consider:

• the wife as sole borrower;
• the husband as security guarantor;
• independent legal advice for the husband;
• evidence that the wife can service the whole loan;
• the reason for the 80/20 ownership split;
• both applicants’ household expenses;
• existing trust and investment liabilities; and
• whether the structure creates an unsuitable outcome.

A lender that does not offer co-owner guarantees may require the husband to become a joint borrower.

If the husband becomes a borrower, he may be responsible for the entire loan rather than 20%.

Example: husband is added only to make servicing work

Assume the wife cannot service the proposed loan alone.

The husband’s income is therefore required, but the parties want the loan to remain solely in the wife’s name.

Most lenders would not simply add the husband’s salary while excluding him from the loan.

The likely options would be:

• add the husband as a co-borrower;
• reduce the loan amount;
• contribute a larger deposit;
• repay other debts;
• purchase a lower-priced property; or
• consider a different ownership and borrowing structure.

A security guarantor’s income is not ordinarily a substitute for borrower servicing.

What documents may be required?

An application with unequal ownership or a non-borrowing co-owner may require:

• contract of sale showing the purchasers;
• title ownership details;
• explanation of the proposed ownership percentages;
• identification for both owners;
• income evidence for the borrower;
• liabilities and living expenses for both partners;
• trust deeds and company documents;
• financial statements for relevant trusts or companies;
• statements for existing trust debts;
• evidence of personal guarantees;
• guarantee and mortgage documents;
• independent legal advice certificates; and
• written confirmation that the parties understand the arrangement.

The lender may also ask why the title and loan parties differ.

Questions to answer before signing the contract

Before committing to an 80/20 or sole-borrower structure, the parties should establish:

• Will the lender accept unequal title ownership?
• Must every registered owner be a borrower?
• Does the lender permit a co-owner or spouse guarantee?
• Is the non-borrowing owner’s income required?
• Will both partners’ debts and living expenses be assessed?
• How will existing trust debts be treated?
• Has either spouse guaranteed a trust or company loan?
• Will the structure affect future borrowing capacity?
• Does the ownership split affect tax or first home buyer eligibility?
• What happens if the property is sold?
• What happens if the relationship ends?
• What is each person liable for if the loan defaults?

These questions should be resolved before the finance and legal structure is finalised.

The main point

One spouse can potentially own part of a property without being a borrower, but the structure must fit the lender’s co-owner and guarantee policies.

Where the property is owned 80/20, the 20% owner may need to be:

• a joint borrower;
• a security guarantor; or
• a co-owner mortgagor.

Their 20% ownership does not automatically limit their loan liability to 20%.

The lender will also assess whether each borrower receives a genuine benefit, whether the sole borrower can service the debt, and whether existing trust or joint commitments affect the application.

Legal ownership, loan liability and borrowing capacity are separate issues and should be considered together before the contract is signed.

General information disclaimer

This article contains general information only and does not take into account your objectives, financial situation or needs. It does not constitute financial, legal, taxation, relationship, estate-planning or credit advice.

Property ownership, co-borrowing and guarantee arrangements can create significant legal and financial obligations. A joint borrower may be liable for the full loan regardless of their ownership percentage, while a guarantor may risk their interest in the secured property.

Lender policies, servicing methods, guarantee requirements and acceptable borrower structures can change without notice. Loan approval remains subject to the lender’s complete credit assessment and the policy applying at the time of application.

Obtain independent legal and taxation advice before deciding how a property should be owned or before signing a loan, mortgage or guarantee.