Family Loan Agreements: The Pros and Cons

What Is a Family Loan Agreement?

A family loan agreement is a formal written contract between you and a family member who is lending you money, usually toward a deposit, or acting as guarantor on your home loan. The agreement sets out the amount, repayment terms, interest arrangements if any, and what happens if your circumstances change.

Lenders want proof that any deposit funds you receive from family are genuinely a gift or a properly documented loan. Without a signed agreement, a lender may treat the amount as an undisclosed liability or require statutory declarations from both parties. In some cases, that lack of documentation can reduce your borrowing capacity or delay approval altogether.

Why Lenders Require Documentation

When you apply for a home loan, the lender assesses your ability to service the loan based on your income, existing debts, and expenses. If you receive funds from a parent or relative and there is no written record, the lender does not know whether that money needs to be repaid. A verbal arrangement between family members might feel informal, but the lender treats it as a potential debt unless you can prove otherwise.

Consider a single-income buyer in Melbourne who receives $40,000 from a parent to reach the minimum deposit for a unit. The lender will ask for a statutory declaration stating the funds are a gift with no obligation to repay. If the parent expects repayment over time, even informally, a statutory declaration would be misleading. A family loan agreement instead documents the repayment schedule and any interest, allowing the lender to include that commitment in the serviceability assessment. That transparency can mean the difference between conditional approval and outright decline.

The Pros of a Written Family Loan Agreement

A signed agreement protects both parties. For the buyer, it provides the evidence a lender needs to assess the loan application accurately. For the parent or relative, it creates a legal record of the amount lent, the terms agreed, and the expected repayment. If the relationship changes or the borrower's circumstances shift, the written terms prevent disputes about what was originally intended.

A family loan agreement also clarifies whether interest applies. Some families choose to charge a modest interest rate, others lend interest-free. Either arrangement is valid, but it must be stated in writing. The ATO may also have an interest in large interest-free loans between family members, particularly if one party is asset-testing for Centrelink or aged care purposes. A written agreement provides a contemporaneous record if either party is ever questioned.

When a parent acts as guarantor rather than lending cash, the guarantor deed is prepared by the lender and signed at settlement. That deed is itself a binding agreement. If the parent also provides cash as part of the same transaction, a separate family loan agreement may still be needed to document that component. The two arrangements work alongside each other.

The Cons and Risks of Family Lending

The main risk for the parent is that the buyer defaults on repayments, either to the lender or under the family loan agreement. If a parent has provided a guarantee and the buyer cannot meet the mortgage, the lender will pursue the guarantor for the shortfall. That can put the parent's own home at risk if the guarantee is secured against their property.

For the buyer, a family loan agreement creates a formal debt obligation that will appear in future credit assessments. If you apply to refinance or take out an additional loan, that outstanding family loan will reduce your borrowing capacity in the same way a personal loan or credit card limit would. Some buyers assume an informal family arrangement will not affect future lending, but once documented, it becomes part of your financial profile.

Another risk is the emotional and relational impact. Money and family can be a difficult combination. A written agreement does not eliminate the potential for conflict, but it does provide a reference point if disagreements arise. In our experience, clarity at the outset prevents far more problems than it creates.

How the Agreement Should Be Structured

The agreement does not need to be complex, but it should cover the amount lent, the repayment schedule, the interest rate if any, and what happens if the buyer sells the property or refinances before the loan is repaid. It should also state whether the loan is secured against the property or unsecured.

Most family loan agreements are unsecured, meaning the lender does not register a mortgage over the property. If the parent does want security, they can register a second mortgage, but this requires legal documentation and may affect the buyer's ability to refinance later. The first mortgage lender will usually require the parent to sign a deed of priority, agreeing that the bank's mortgage ranks ahead of the family loan in the event of default.

Both parties should obtain independent legal advice before signing, particularly if the loan is large or secured. A written agreement that has not been reviewed by a solicitor may still be legally binding, but it is more likely to contain gaps or ambiguities that cause problems later. The cost of legal advice up front is small compared to the cost of resolving a dispute.

When a Statutory Declaration Is Enough

If the funds are genuinely a gift with no expectation of repayment, a statutory declaration is the right approach. The parent signs a statement confirming the money is a gift, and the buyer provides that declaration to the lender as part of the application. No repayment schedule is required because no debt exists.

Some parents prefer to frame the arrangement as a gift to avoid creating a formal debt for their child, even if they privately expect the money to be returned one day. That approach carries significant risk. If the lender later discovers the funds were not a genuine gift, the loan approval can be reversed, and the buyer may face allegations of mortgage fraud. A family loan agreement is always the right option when repayment is expected, regardless of how informal the arrangement feels.

How Family Loan Agreements Work with Guarantor Loans

A guarantor loan allows a buyer to borrow with little or no cash deposit by using a parent's property as additional security. The parent does not hand over cash but instead guarantees a portion of the loan, usually the amount required to reach 80% LVR and avoid lenders mortgage insurance.

Some buyers combine a guarantor arrangement with a cash loan from the same parent. In that scenario, the guarantor deed covers the security component, and a separate family loan agreement documents the cash. Both arrangements should be in place before settlement. Lenders will require copies of both documents as part of the approval process.

If you are considering a guarantor structure, whether or not it includes a family loan, it is worth reviewing the different options available through the Australian Government 5% Deposit Scheme or Help to Buy, which may allow you to purchase with a smaller deposit without involving a family member at all.

Common Mistakes to Avoid

The most common mistake is assuming a handshake or verbal agreement is sufficient. It is not. Lenders will not accept verbal confirmation, and neither will the legal system if a dispute arises. A text message or email thread is better than nothing, but it is not a substitute for a properly drafted agreement.

Another mistake is backdating the agreement or preparing it after the funds have already been transferred. The agreement should be signed before or at the time the money changes hands. A document created months later to satisfy a lender raises questions about its authenticity and may not be accepted.

Some buyers also fail to update the agreement when circumstances change. If the repayment term is extended, the interest rate is waived, or the loan is forgiven, those changes should be recorded in a written variation and signed by both parties. An outdated agreement that no longer reflects the actual arrangement is worse than no agreement at all.

Tax and Estate Planning Considerations

A family loan can have implications for the lender's estate. If the parent passes away before the loan is repaid, the outstanding balance may form part of the estate and be distributed according to the will. If other children are involved, that can create tension, particularly if they were not aware of the loan or feel the arrangement was unfair.

Some parents address this by stating in their will that the loan is to be forgiven on death, or by specifying that the outstanding amount should be deducted from the borrower's inheritance. Either approach is valid, but it must be documented. A family loan agreement should cross-reference the will or include a clause about what happens on death, and both the will and the loan agreement should be kept up to date.

There may also be capital gains tax or land tax implications if the parent uses a property as security for the family loan. These are complex areas, and both parties should seek advice from an accountant or tax adviser before proceeding.

If you are working through a purchase that involves family support, whether through a loan, a gift, or a guarantor arrangement, call one of our team or book an appointment at a time that works for you. We work with first home buyers across Melbourne and Australia to structure loans that meet lender requirements while protecting family relationships.

Frequently Asked Questions