Gift or Loan? How Parents Can Safely Help Adult Children Buy a Home

December 3, 2025

Protecting the "Bank of Mom and Dad" from Divorce, Fraud, and Taxes

In today's Ontario real estate market, the "Bank of Mom and Dad" has become one of the province's largest lenders. With rising interest rates and high prices, many parents are stepping in to provide the down payment their adult children need to buy their first home.

It is a generous act, but it comes with hidden legal dangers that most families never consider until it is too late.

When you hand over that cheque for $50,000 or $100,000, you are making a legal decision, whether you realize it or not. Is this money a gift? Or is it a loan?

The answer matters immensely. If you get it wrong, you could accidentally expose your hard-earned savings to your child’s future divorce settlement, trigger an expensive tax bill, or even find yourself trapped in a web of accidental mortgage fraud.

At Cabinet Sauvé Law, we help families navigate this delicate balance between generosity and protection. Here is what every parent (and child) needs to know before the money moves.


The Core Conflict: What the Bank Wants vs. What You Want

This situation usually starts with a conflict between two powerful forces: The Mortgage Lender and Parental Anxiety.

1. The Mortgage Lender Requires a "Gift"

To approve your child for a mortgage, the bank needs to verify the source of the down payment. Lenders are terrified of "borrowed down payments" because it means the borrower has more debt than they disclosed. If the bank sees a large transfer from parents, they will almost always require a Gift Letter. This is a formal legal document where you, the parent, must sign a statement declaring:

  • "This money is a genuine gift."
  • "There is no expectation of repayment."
  • "No part of this money is a loan."

2. The Parent Wants a "Loan"

Privately, however, many parents are thinking: "I'm happy to help, but if they sell the house, I want that money back for my retirement," or "I don't mind giving this to my daughter, but I definitely don't want half of it going to her boyfriend if they break up next year."

The Fraud Trap

We often see families try to "outsmart" the system. They sign the Gift Letter for the bank to get the mortgage approved, but then secretly have the child sign a "side" Promissory Note agreeing to pay it back. This is dangerous. By signing the Gift Letter, you have legally declared the money is not a loan. If you later try to enforce that secret Promissory Note in court, a judge will likely toss it out because you swore to the bank it was a gift. Worse: Misrepresenting the source of funds to a federally regulated lender can constitute mortgage fraud. You are effectively inducing the bank to lend money based on false information.


The "Matrimonial Home" Trap

Even if you genuinely intend it to be a gift, there is another massive risk: Ontario Family Law.

In Ontario, gifts received during a marriage are usually "excluded" from division if the couple divorces. However, there is a major exception that catches thousands of families off guard: The Matrimonial Home.

Under the Family Law Act, if a gift is used to purchase or pay down the mortgage on the family home, it loses its "excluded" status. It becomes part of the shared family pot.

  • Scenario: You give your son $100,000 for a down payment. He marries. Five years later, they divorce.
  • The Outcome: Because that money is tied up in the matrimonial home, his ex-wife is entitled to half of the home's value. She walks away with $50,000 of your money, and there is nothing you can do about it.

The Solution: How to Do It Right

You do not have to choose between committing mortgage fraud and leaving your money unprotected. There are two proper legal ways to handle this.

Option 1: The "Secured" Loan (The Second Mortgage)

Instead of a secret Promissory Note, you can register a formal Second Mortgage on the property title for the amount of your loan.

  • Pros: This is the strongest protection. If the house is sold or the couple divorces, your "mortgage" is a registered debt that must be paid back to you before any equity is split between the spouses.
  • Cons: Most primary lenders (the "A" lenders) will not allow this. They want to be the only debt on title. This option usually only works if the child has a very large down payment (20%+) or financing from a lender that permits secondary financing.

Option 2: The Marriage Contract (The "Gold Standard")

This is the most common and effective solution for modern families who want to keep the primary lender happy.

  1. The Gift: You provide the funds as a true gift and sign the lender’s Gift Letter honestly. This satisfies the bank and gets the mortgage approved.
  2. The Protection: Before the closing (or shortly after), your child and their spouse sign a Marriage Contract (or Cohabitation Agreement for unmarried couples).
  3. The Clause: In this contract, the couple agrees that the $100,000 down payment came from you and, in the event of a separation, that specific amount will be returned to your child before the remaining equity is divided.

This "Domestic Contract" effectively overrides the default Family Law Act rules. It acknowledges the gift was for your child, not the marriage.


Common Law vs. Married: Why It Matters

It is vital to understand that in Ontario, Common Law couples and Married couples play by very different rules.

  • For Married Couples: As mentioned above, the matrimonial home is automatically shared 50/50, regardless of who paid for it. A Marriage Contract is the only way to change this.
  • For Common Law Couples: There is no automatic 50/50 split of the home. Generally, you take out what you put in. However, without a written agreement, disputes can get messy. If your child's partner contributes to the mortgage or renovations, they may claim a "Constructive Trust" over the home, demanding a share of the equity.

The Fix: A Cohabitation Agreement. If your child is buying a home with a girlfriend or boyfriend, a Cohabitation Agreement is essential. It can clearly state: "The down payment of $100,000 was provided by John's parents. In the event of a separation, John gets the first $100,000 of equity, and only the remaining profit is shared."

Crucially, a Cohabitation Agreement can be drafted to automatically convert into a Marriage Contract if they decide to get married later, providing seamless protection.


The "Provenance of Funds" Rule (The 90-Day Rule)

Before you write that cheque, you need to know about Canada's strict Anti-Money Laundering (AML) rules.

Lenders and lawyers are required to verify the "provenance" (origin) of all funds used in a real estate transaction.

  • The 90-Day History: Lenders typically want to see a 90-day history of the bank account where the down payment is coming from.
  • The "Mattress Money" Problem: If you deposit $50,000 cash into your account two weeks before closing, the bank may reject it because they cannot trace its origin.
  • The Solution: If you are planning to help your child, move the funds into a clear, traceable account well in advance. Be prepared to provide your own bank statements to your child's broker to prove the money came from a legitimate source (e.g., savings, HELOC, or investment sale).

The "Resulting Trust" Trap (The Pecore Principle)

Finally, a warning for parents who think, "I'll just put my name on the title with my child to protect my investment."

In the landmark Supreme Court of Canada case Pecore v. Pecore, the court established a legal presumption regarding transfers from parents to adult children.

  • The Presumption: If you give an asset to an adult child (like adding them to a deed or bank account), the law presumes you did not intend to give it to them as a gift. Instead, it presumes they are holding it in "Resulting Trust" for your estate.

Why is this a trap? If you pass away, your other children could sue, claiming that the house doesn't belong to the child who lives there, but actually belongs to your Estate (and therefore should be split among all siblings). Unless you have clear legal documentation (like a Deed of Gift) proving you intended for that child to own the home, your generous act could spark a massive family lawsuit after you are gone.

Protect Your Generosity

Helping your child buy a home is a wonderful milestone. It shouldn't be a source of sleepless nights, tax audits, or family feuds.

At Cabinet Sauvé Law, we can draft the necessary agreements to ensure your generosity helps your child build a future, not fund a breakup. Whether it’s a Loan Agreement, a Deed of Gift, or a specialized Marriage Contract, we ensure everyone is on the same page before the money moves.

Your generosity deserves the best possible legal protection. Don't leave your family’s financial future to chance or a handshake agreement. Contact Cabinet Sauvé Law today to schedule a consultation, and let us help you structure this investment safely, ensuring your contribution remains a blessing rather than a burden.

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