Home / Knowledge Base / Family Law

Family Law

Spousal Support in Ontario: Who Pays, How Much & For How Long

Spousal support (sometimes called alimony) compensates a financially disadvantaged spouse after separation. Unlike child support, there is no fixed formula — entitlement, amount, and duration all depend on your specific circumstances.

Is There Entitlement to Spousal Support?

Before calculating any amount, a court or negotiator must establish that support is owed at all. There are three grounds for entitlement:

  • Compensatory: One spouse sacrificed career or education to support the family or the other spouse's career (e.g., stayed home with children, relocated for a partner's job). Support compensates for that economic disadvantage.
  • Non-compensatory (needs-based): One spouse simply cannot support themselves to the standard of living enjoyed during the marriage, and the other has the ability to pay.
  • Contractual: A separation agreement or marriage contract specifies support obligations.

Both married spouses and common-law partners (who lived together for 3+ years, or who have a child together) can claim spousal support under the Family Law Act.

How Much? The Spousal Support Advisory Guidelines (SSAG)

The SSAG are not law, but courts and lawyers use them as a strong reference point. They produce a range of monthly support based on the income difference between spouses:

  • Without dependent children: 1.5–2% of the difference in gross income per year of cohabitation (capped at 50% of income difference)
  • With dependent children: A different formula that accounts for child support first, then calculates spousal support on the adjusted net disposable incomes

A paralegal or family law professional can run the SSAG calculations using your actual income figures.

Duration of Spousal Support

Relationship LengthTypical Duration Range
Under 5 years (no children)0.5–1 year per year of cohabitation
5–20 years0.5–1 year per year of cohabitation
20+ years or "rule of 65"*Indefinite (subject to review)

* The "rule of 65" applies when the recipient's age plus years of cohabitation equals or exceeds 65.

Tax Treatment

Spousal support paid under a written agreement or court order is:

  • Deductible for the payor (reduces taxable income)
  • Taxable income for the recipient

Lump sum support paid all at once is generally not deductible for the payor and not taxable for the recipient (unless it is clearly characterized as arrears or periodic payments). Structuring the payment correctly matters enormously — get legal advice before signing.

Varying or Terminating Support

Either party can apply to vary or terminate spousal support if there has been a material change in circumstances — for example:

  • Payor loses their job or income drops significantly
  • Recipient begins cohabiting with a new partner
  • Recipient's income increases substantially
  • Recipient remarries (does not automatically end support, but is a factor)
  • A time-limited order expires

Variation requires a court order or a new written agreement — unilaterally stopping payments leads to arrears that can be enforced by the Family Responsibility Office (FRO).

Negotiating or challenging a spousal support arrangement?

Book a Free Consultation
🔒 End-to-end encryption
CA PIPEDA-compliant
⚖️ LSO By-Law 9
🛡️ LawPRO Insured
LSO Licensed Paralegals
🔐 256-bit AES Encryption
📋 AODA Accessible
🇨🇦 100% Canadian-Hosted
🕒 SOC 2 Compliant Infrastructure
📄 CASL Compliant
💻 Secure Client Portal
📊 Transparent Fixed Fees
🔍 Verified Google Reviews
🤝 Free Initial Consultation
VISAPayPay