Ontario Divorce Lawyer Miao He: Can You Deduct the Value of a Pre-Marriage Home at the Date of Marriage After Selling It and Buying a New Home?

Questions Clients Commonly Ask

“I bought a house before I got married, then sold it and used the proceeds to buy our current home. Do I have to split the entire value with my spouse?”

“I had $600,000 in the bank when I got married, and I later used all of it to buy our matrimonial home. Can I still deduct that amount?”

“The other lawyer says that once the money went into the matrimonial home, it became part of the matrimonial home and can no longer be deducted. Is that correct?”

1. Why Is a Matrimonial Home an Exception?

Ontario uses a Net Family Property (NFP) equalization system.

Generally, a spouse’s NFP is calculated by determining the value of property owned on the date of separation, subtracting applicable debts and deductions, and then deducting the spouse’s net property on the date of marriage. The spouse with the higher NFP generally pays one-half of the difference to the other spouse.

One of the important deductions is property owned on the date of marriage.

However, s. 4(1) of the Family Law Act expressly provides that property owned on the date of marriage is deductible “other than a matrimonial home.”

This means that if a person owned a home before marriage and the spouses continued to live in that home as their matrimonial home until separation, the value of that property at the date of marriage generally cannot be deducted.

By contrast, the same amount of money held in a bank or investment account on the date of marriage may generally be deducted.

This distinction can have a significant impact on the calculation of Net Family Property.

2. The Key Point: Section 4 Does Not Define “Matrimonial Home”

The definition of a matrimonial home appears in s. 18(1) of the Family Law Act.

A matrimonial home is a property in which a person has an interest and that is, or, if the spouses have separated, was at the time of separation, ordinarily occupied by the person and the person’s spouse as their family residence.

The wording is important.

It means that, where the spouses have separated, the status of the property is assessed with reference to the time of separation.

A house may have been the couple’s matrimonial home for several years. But if that house was sold before separation and the spouses moved into another home, the former property is no longer the property in which they ordinarily resided as their family residence at the time of separation.

That distinction can be critical when determining whether the value of the former home at the date of marriage is deductible.

3. The 40-Year Line of Cases

Folga v. Folga (1986)

In Folga v. Folga, 2 R.F.L. (3d) 358 (Ont. H.C.J.), the husband owned a home before marriage. The spouses lived there for approximately three years after marriage, then sold it and purchased another home, where they continued to live until separation.

The court focused on the wording of s. 18(1) and concluded that, because the former property was no longer the spouses’ family residence at the time of separation, it did not retain matrimonial-home status.

The decision emphasized that the status of a matrimonial home is not immutable.

In other words, a property does not necessarily remain a matrimonial home forever simply because it was once the spouses’ matrimonial home.

Nahatchewitz v. Nahatchewitz (1999)

The principle was subsequently adopted by the Ontario Court of Appeal in Nahatchewitz v. Nahatchewitz, 1999 CanLII 787 (ON CA).

The parties married in 1992 and initially lived in the husband’s pre-marriage home. That home was sold in 1993 and replaced with another property, where the parties lived until separation in 1995.

The trial judge refused the deduction. The Court of Appeal overturned that decision.

The Court held, in substance, that because the property was not the spouses’ family residence at the time of separation, the fact that it had previously been their matrimonial home was not sufficient to bring it within the statutory definition.

The principle has remained part of Ontario family-property law.

Lau v. Tao (2025)

The Ontario Court of Appeal returned to the issue in Lau v. Tao, 2025 ONCA 819.

The case is particularly relevant to clients with property outside Canada.

The parties married in 2014 and lived in Hong Kong. They moved to Ontario in 2018 and separated in 2019. The Hong Kong property had already been sold in 2018.

Because the parties were not living in that property at the time of separation, the Court of Appeal upheld the conclusion that it was not a matrimonial home within the meaning of s. 18(1), relying on the reasoning in Folga.

The case also illustrates an important practical point: one party provided a sufficiently complete tracing analysis, while the other did not provide an equally detailed analysis. The court therefore accepted the position supported by the stronger evidence.

4. What If Money Owned at the Date of Marriage Was Used to Buy the Matrimonial Home?

One of the most common misconceptions in practice is:

“Once money owned at the date of marriage is put into the matrimonial home, it is gone and can no longer be deducted.”

That statement is too broad.

The analysis under s. 4(1) is different from the analysis applicable to certain property acquired during the marriage, such as gifts or inheritances under s. 4(2).

Section 4(1) asks:

What property did the spouse own on the date of marriage?

If the spouse owned $600,000 in cash or in a bank account on the date of marriage, the property owned on that date was money—not a matrimonial home.

The statutory exception for a matrimonial home therefore does not automatically eliminate the deduction simply because the money was later used toward the purchase of a matrimonial home.

The case law and commentary surrounding Nahatchewitz support this distinction: funds brought into the marriage may remain deductible even if they are later used to acquire a matrimonial home.

However, this issue should be approached carefully.

There is not necessarily a single appellate decision that resolves every possible factual scenario involving money owned at the date of marriage that is subsequently invested in a matrimonial home. Lower-court treatment can vary depending on the facts.

Accordingly, this is a position that may be strongly arguable, but it should be supported by a clear statutory analysis and, most importantly, reliable financial evidence.

A Simplified Comparison

Property Owned on the Date of Marriage	Situation at Separation	Deduction
A home	The same home remains the matrimonial home	Generally not deductible
A home	The home is sold and replaced by another home before separation	Potentially deductible
Cash or bank savings	The funds are later used to purchase the matrimonial home	Generally potentially deductible, subject to tracing and proof

5. The Real Battleground Is Tracing

Under s. 4(3), the spouse claiming the deduction bears the burden of proving the deduction.

This means that the legal argument is only part of the case.

The practical question is:

Can you prove what you owned on the date of marriage, and where that property or its proceeds went afterward?

A court will generally be looking for documentary evidence rather than an approximate recollection of what happened years ago.

Depending on the case, useful evidence may include:

• Bank statements from the month of marriage, not merely statements from the same year;
• Records showing the balance and ownership of the account on the date of marriage;
• Transfer records showing the movement of funds;
• The purchase agreement and closing documents for the pre-marriage home;
• The sale agreement and closing statement for the former home;
• Evidence showing the net proceeds received from the sale;
• Purchase documents for the replacement property;
• Bank records connecting the proceeds from the former property to the purchase of the new property;
• Evidence establishing where the spouses ordinarily resided at the time of separation; and
• Property tax records, utility bills, driver’s licence and insurance addresses, tax filings, school records, and other documents that may help establish the family’s ordinary residence.

The closer the evidence can connect each stage of the transaction, the stronger the tracing argument becomes.

6. Evidence Should Be Collected Early

In practice, financial records can become much harder to obtain as time passes.

Canadian financial institutions may have limitations on how far back records can be readily accessed. Obtaining records from financial institutions in China or other jurisdictions may take substantially longer.

For that reason, clients should begin collecting relevant documents before the first financial disclosure is finalized, including the materials required for Form 13.1 Financial Statement, where applicable.

A significant number of disputes over property owned on the date of marriage are ultimately decided not simply by the legal principle, but by whether the party claiming the deduction can actually prove the amount.

A client may genuinely have brought substantial property into the marriage, but if the documentary trail is incomplete, the court may not be able to accept the claimed deduction.

7. Practical Takeaway

If you owned a home before marriage and:

1. you owned it on the date of marriage;
2. it was initially used as the matrimonial home;
3. you later sold it before separation;
4. you purchased another property; and
5. the new property was the family residence at the time of separation,

there may be a strong argument that the former home was no longer a matrimonial home at the time of separation, and that the value of that former home at the date of marriage can therefore be deducted under s. 4(1).

The situation is different if the same pre-marriage home remained the matrimonial home at separation.

And if what you owned on the date of marriage was cash or savings, rather than the house itself, the analysis under s. 4(1) is different again. The fact that those funds were later used to purchase a matrimonial home does not necessarily eliminate the deduction.

In every case, however, tracing and documentary evidence are critical.

Statutory and Case Authorities

• Family Law Act, R.S.O. 1990, c. F.3, ss. 4(1), 4(3), 4(5), 5(6), 18(1), 28(1)
• Folga v. Folga (1986), 2 R.F.L. (3d) 358 (Ont. H.C.J.), at 363
• Nahatchewitz v. Nahatchewitz, 1999 CanLII 787 (ON CA)
• Lau v. Tao, 2025 ONCA 819
• Serra v. Serra, 2009 ONCA 105, 93 O.R. (3d) 161, at paras. 47–48
• Booth v. Bilek, 2021 ONCA 128

This article provides general legal information only. It does not constitute legal advice for any particular case and does not create a solicitor-client relationship. The outcome of an individual case may vary significantly depending on the specific facts, documents, and evidence. Legislation and case law change; confirm the current authorities before relying on a citation.