Is spousal support taxable income in Ontario?

The tax treatment of spousal support in Canada depends on how it is paid. Periodic support payments — monthly or regular instalments — paid under a court order or written separation agreement are generally deductible by the payer and must be included as income by the recipient. This is a federal income-tax rule that applies across Canada, including Ontario.

Lump-sum support payments are typically treated differently: they are usually neither deductible by the payer nor taxable to the recipient, though the rules can be nuanced depending on the specific terms of the agreement and whether arrears are involved. The Canada Revenue Agency (CRA) has detailed guidance on what qualifies as "periodic" versus "lump sum" for tax purposes.

Because the tax implications can significantly affect the real value of any support arrangement, it is worth discussing the structure of payments with both your family lawyer and a tax professional before finalizing an agreement. What looks like equivalent amounts on paper can have very different after-tax results depending on how the payments are set up.