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Deferred Tax and Selling Costs in Equalization Ontario

Do future taxes and realtor fees reduce what a house, RRSP or investments are worth in equalization? Learn the questions that matter and when to get advice.

Family Law4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • Net family property is the value of your property on the valuation date, less debts and liabilities, so the question is how to value each asset.
  • Any reduction in an asset's value changes the equalization payment, because the lesser-NFP spouse receives one-half the difference.
  • A court can vary the equal share only where equalizing would be unconscionable, and mere unfairness is not enough.
  • Whether future tax or selling costs reduce a value depends on the asset, the evidence and the circumstances, so confirm with a lawyer and an accountant.

If you hold a house, an RRSP or an investment account, you may have heard that the real value is lower than the balance because tax or realtor fees will be owed if the asset is sold or cashed out. Those future costs are often called deferred tax and disposition costs. People disagree about whether they should reduce what an asset is worth when spouses equalize.

This article explains why the question matters, how it fits into the equalization formula, and what to ask a lawyer or accountant. Whether a future cost is deducted depends on the asset and the evidence, so it does not offer a one-size answer.

Why the question matters

Net family property is the value of all the property you own on the valuation date, except excluded property, less your debts and liabilities. Each asset is therefore given a value, and the total drives the result.

The spouse with the lesser net family property is entitled to one-half the difference between the two net family properties. If a value is lowered because of expected tax or selling costs, the difference between the spouses changes, and so does the payment. A change to a large asset can matter a great deal.

Deferred tax and selling costs in plain words

Deferred tax is tax that is not payable today but may become payable later, for example when a registered account is cashed in or an investment is sold at a gain. Selling costs are expenses such as realtor commissions and legal fees if a home is sold.

The argument for reducing value is that you cannot actually keep the full balance. The argument against is that nobody has sold anything, and the costs may never arise if the asset is kept. Which argument is stronger depends on the asset, whether a sale is likely and what evidence is available.

AssetPossible future costWhy it is debated
HouseRealtor fees and legal costs on a saleA sale may not be planned
RRSP or similar accountTax when funds are withdrawnTiming and amount of tax are uncertain
Investment accountTax on gains if soldGains may be deferred for years

Whether and how a court allows any reduction depends on the facts and the expert evidence presented, and is worth confirming with a lawyer and accountant.

Points that can affect the answer

On that last point, the law takes double-counting seriously in the marriage-date setting, where the same property cannot be both an excluded amount and a marriage-date deduction. Apply the same care to any adjustment you propose.

Fairness arguments have a high bar

Some people feel it is unfair to share the full value of an asset that will be taxed later. A court can vary the equal share only if equalizing net family properties would be unconscionable. The threshold is high, and mere unfairness is not enough.

How best to raise a concern about future tax or selling costs depends on your situation, so it is worth confirming with a lawyer and an accountant.

What to do next

Raise the issue early, because valuation evidence takes time to obtain. How to present a figure for any asset depends on your situation, so it is worth confirming with a lawyer.

Frequently asked questions

Do realtor fees reduce the value of the house in equalization?

It depends on the facts, including whether a sale is likely and the evidence you can show. The starting point is that net family property is the value of property you own on the valuation date, less debts and liabilities. A lawyer can tell you how selling costs are generally treated.

Does the tax on my RRSP reduce its value?

Whether and how much depends on the account, the likely timing of withdrawals and the evidence. An accountant can estimate the tax, and a lawyer can explain whether it is likely to be recognized. Any change to the value affects the payment, because the lesser-NFP spouse receives one-half the difference.

Can I ask a court to change the split because tax makes it unfair?

A court can vary the equal share only if equalizing would be unconscionable, and mere unfairness is not enough. The threshold is high. How to raise a tax concern in your case is worth confirming with a lawyer.

Is inherited property affected by this issue?

Property acquired by gift or inheritance from a third person after the date of marriage is generally excluded from net family property, but the exclusion does not apply to a matrimonial home. If an asset is excluded, the valuation argument may not arise at all.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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