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When Helping Children Buy Property Goes Wrong: Why Parents Should Properly Document Family Loans
Daniella Ruggero
Daniella Ruggero
02 Jun 2026
When Helping Children Buy Property Goes Wrong: Why Parents Should Properly Document Family Loans

Bank of Mum and Dad: Why Family Loans Should Always Be Documented

With Sydney remaining one of Australia's most expensive property markets and affordability challenges continuing to affect first-home buyers, many children are turning to the BANK OF MUM AND DAD, for assistance to purchase a property.

Whether through contributing to a deposit, assisting with stamp duty, or providing funds to reduce borrowing requirements, family financial assistance has become increasingly common.

While these arrangements are often made with the best intentions, an important legal consideration is frequently overlooked: properly documenting the loan.

Parents commonly advance significant sums with the expectation that the funds will eventually be repaid. However, without a formal loan agreement, what begins as an act of generosity can later give rise to legal disputes, financial loss, and strained family relationships.

A carefully drafted loan agreement provides certainty, protects family relationships, and can significantly reduce the risk of future disputes. Seeking legal advice before funds are advanced helps ensure that both the lender and borrower clearly understand their rights and obligations from the outset.

Was It a Loan or a Gift?

One of the most common disputes that arises when parents provide financial assistance to their children is whether the money was intended to be a loan or a gift.

Without a written agreement, it can become extremely difficult to prove what was originally intended. Years later, memories fade, circumstances change, and family members may have very different recollections of the arrangement. In some cases, a child may genuinely believe the money was a gift, while a parent may believe it was always intended to be repaid.

A properly drafted loan agreement clearly records:

  • the amount being advanced;
  • whether interest is payable;
  • repayment obligations;
  • repayment dates;
  • what happens if repayments are missed; and
  • the parties' intentions regarding repayment.

Having these matters documented can significantly reduce the risk of future disputes.

Difficulties Recovering the Money

Even where everyone agrees that money was intended to be repaid, problems can arise if the arrangement was never properly documented.

Without a written agreement, disputes may arise about:

  • whether repayments were required at all;
  • how much was to be repaid;
  • whether interest applied;
  • when repayment was due; and
  • whether the loan has already been repaid.

If the relationship breaks down or repayments stop, enforcing an oral agreement can be difficult and expensive. The parties may be forced to rely on bank records, text messages, emails and witness evidence to establish what was agreed.

Spending a relatively modest amount on legal advice at the beginning of the arrangement can often save substantial legal costs in the future.

Family Law Risks

Many parents are unaware of the impact an undocumented family loan can have if their child later separates from a spouse or partner.

In family law proceedings, the Court may be reluctant to treat money advanced by parents as a genuine loan unless there is clear evidence demonstrating an intention that the money be repaid. Without a written agreement, the funds may be viewed as a gift and treated as part of the child's asset pool rather than a liability owed to the parent.

In practical terms, a parent who contributed $100,000 towards a property purchase may find that, without proper documentation, those funds are treated as part of the couple's assets and ultimately benefit a former spouse or partner. This is often an outcome parents never intended when providing financial assistance.

A properly documented loan agreement can provide important evidence that the money was intended to be repaid and not gifted.

Protecting the Loan with Security

Another common issue is that parents often advance substantial sums without obtaining any security.

If the child experiences financial difficulties, sells the property, or fails to make repayments, recovering the funds can become considerably more difficult.

Depending on the circumstances, parents may wish to secure the loan through a registered mortgage or caveat over the property. Security arrangements can provide additional protection if the property is sold, refinanced, or becomes the subject of claims by third parties.

Estate Planning and Succession Issues

Undocumented family loans can also create significant complications after a parent's pass away.

For example, if one child received $200,000 to assist with a property purchase and the arrangement was never documented, disputes may arise after a parent's death as to whether that amount should be deducted from that child's inheritance or treated as an early distribution of their entitlement

It is not uncommon for disputes to arise between siblings where one child has received substantial financial assistance during the parent's lifetime. Questions may arise such as:

  • Was the money a gift or a loan?
  • Has the loan already been repaid?
  • Should the amount be taken into account when dividing the estate?
  • Should the debt be forgiven under the will?

Without proper documentation and record keeping, these disputes can become difficult and expensive to resolve.

In some circumstances, parents may wish tospecifically address family loans in their estate planning documents. This can help minimise future disputes and provide greater certainty for beneficiaries.

The Importance of Record Keeping

Even where a formal loan agreement exists, maintaining accurate records remains important.

Parents should retain copies of:

  • loan agreements;
  • bank transfer records;
  • repayment records;
  • correspondence relating to the loan; and
  • evidence of any repayments made.

It is not uncommon for loans to be repaid over many years. Without proper records, disputes can arise about whether repayments were made or whether the loan has been fully satisfied.

Protecting More Than Just Money

Many parents hesitate to formalise financial arrangements with their children because they are concerned it may appear distrustful or damage the relationship.

In reality, the opposite is often true.

Clearly documenting expectations from the outset helps ensure everyone understands the arrangement and reduces the risk of misunderstandings later. Proper documentation can preserve family relationships by preventing disputes before they arise.

The cost of preparing a loan agreement is often minimal when compared with the emotional and financial cost of family dispute or Supreme Court litigation.

How VRT Lawyers Can Help

At VRT Lawyers, we regularly assist families with properly structuring and documenting loans between parents and children.

We can assist with:

  • preparing tailored loan agreements;
  • advising on repayment and enforcement provisions;
  • advising on mortgages, caveats and other security arrangements;
  • considering family law implications; and
  • ensuring family loans are appropriately addressed in estate     planning documents.

 

Helping a child purchase property should be a positive experience for everyone involved. Seeking legal advice before advancing substantial funds can provide clarity, protect family relationships, and help ensure that both parents and children understand their rights and obligations from the outset.