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.
Before calculating any amount, a court or negotiator must establish that support is owed at all. There are three grounds for entitlement:
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.
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:
A paralegal or family law professional can run the SSAG calculations using your actual income figures.
| Relationship Length | Typical Duration Range |
|---|---|
| Under 5 years (no children) | 0.5–1 year per year of cohabitation |
| 5–20 years | 0.5–1 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.
Spousal support paid under a written agreement or court order is:
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.
Either party can apply to vary or terminate spousal support if there has been a material change in circumstances — for example:
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?
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