Who Keeps the Tax Refund After Separation in Ontario?

A tax refund lands in your account a few months after you've separated, and suddenly it's not clear whose money it is. Is it yours because it's in your name? Your ex's, because the return covered a year you were still together? Or does it get split?

The honest answer is that a tax refund after separation in Ontario isn't a special category of money with its own rule. It's simply an asset — and how it's treated depends on whether you were married, what the refund relates to, and what your separation agreement or court order says.

This guide walks through how a refund fits into Ontario's property and support rules, so you know what questions to ask before you spend it or fight over it.

Step One: Figure Out Whether You Were Married or Common-Law

This distinction drives almost everything in Ontario family law, and a tax refund is no exception.

• Married spouses are entitled to equalization of net family property under the Family Law Act — broadly, the growth in each spouse's net worth during the marriage is shared equally. A refund sitting in a bank account (or reasonably expected) around the relevant date can factor into that calculation like any other asset.
• Common-law partners have no automatic right to share property under the Family Law Act's equalization scheme, regardless of how long they lived together. A refund one partner receives generally stays that partner's money unless a separation agreement, cohabitation agreement, or a general property-law claim says otherwise.

If you're not sure which category you fall into, that's worth confirming with a lawyer before you assume either outcome.

For Married Spouses: How a Refund Fits Into Equalization

Ontario's equalization scheme doesn't ask "whose name is the refund in?" It asks what each spouse owned, and what each spouse owed, on the date used to calculate net family property — typically the date of separation, once there's no reasonable prospect of reconciliation.

A few practical consequences follow from that:

• If the refund was received, or was owed and reasonably expected, before that date, it's generally treated as an asset that forms part of the net family property calculation, just like a bank balance or investment account.
• Which spouse physically receives the refund matters less than when it relates to, and when it lands relative to, the relevant date.
• A refund tied to income earned during the marriage doesn't automatically become "joint" money just because both spouses benefited from the household income that generated it — it still gets folded into the overall equalization math rather than split 50/50 on its own.

Because equalization is a net calculation across all assets and debts — not an asset-by-asset split — a refund is rarely resolved in isolation. It's one line in a larger accounting.

For Common-Law Partners: No Automatic Sharing

If you weren't married, the Family Law Act's equalization scheme doesn't apply to you at all — not for a refund, and not for any other asset, no matter how long you cohabited.

That doesn't mean a former partner has zero recourse. Depending on the facts, a common-law partner might be able to argue a property claim through general trust law — for example, if they can show a contribution that created an unfair result if left unaddressed. That's a fundamentally different, and generally harder, path than equalization, and it isn't guaranteed to succeed.

Absent an agreement or a successful trust claim, a tax refund a common-law partner receives after separation is typically theirs to keep.

What a Separation Agreement Can Say

Many separating couples resolve questions like this directly, rather than leaving them to a court. A written, signed, and witnessed separation agreement (a type of domestic contract under the Family Law Act) can specify exactly how a refund — or any other asset expected around the time of separation — will be divided.

Addressing it explicitly avoids exactly the kind of dispute this article is about. If you're negotiating a separation agreement and a refund is on the horizon, raise it directly rather than assuming the default rule will work in your favour.

Practical Steps If a Refund Arrives Mid-Separation

1. Note the date it was received or became owed, and compare it to your separation date.
2. Don't spend it unilaterally if there's any dispute about entitlement — this can complicate negotiations later.
3. Keep the tax return and assessment as records; they're often needed to document the amount and the tax year involved.
4. Raise it early in separation agreement or equalization discussions rather than treating it as a footnote.
5. Get advice on your specific filing situation from an accountant — how separation affects your ongoing tax filing is a separate question from how a past refund gets divided.

Frequently asked questions