It depends on both spouses' incomes and how the children's time is divided. Where there are children, the Spousal Support Advisory Guidelines set the amount by looking at each spouse's net disposable income, what is left each year after tax, child support, and child benefits, then sharing it toward a target split. This calculator returns a low, midpoint, and high monthly figure. The midpoint is a common starting point, but the whole range is treated as reasonable.

The Spousal Support Advisory Guidelines, or SSAG, are a widely used set of formulas for working out spousal support after a separation or divorce. They are advisory, not law, so they set ranges rather than fixed amounts. Ontario courts and lawyers rely on them every day, but a judge keeps discretion and spouses can agree to something different. This tool uses the with-child formulas, which apply when the couple has dependent children.

Child support in Ontario follows the Federal Child Support Guidelines. The starting point is a table amount based on the paying parent's income and the number of children, with adjustments where parenting time is shared or split between two homes. This calculator works out that child support first, because the spousal support figure depends on it. Special or extraordinary expenses, known as section 7 expenses, are not included and are handled separately.

When a couple has dependent children, spousal support is not worked out from gross income alone. The with-child formula looks at what each spouse actually keeps each year after income tax, child support, and government child benefits. That figure is each spouse's net disposable income. Support is then set so the lower earner ends up with a target share of the two net disposable incomes combined, which is why child support and the parenting arrangement both affect the result.

With dependent children, an initial order is usually indefinite, meaning no fixed end date is set at the start, subject to review as circumstances change. The Guidelines still suggest a range of years based on the length of the relationship and the ages of the children. This calculator shows that range as a guide for review, not a hard cutoff. Duration is one of the areas where a court has the most flexibility.

No. The Guidelines, and this calculator, assume that entitlement to spousal support has already been established. They do not decide whether support is owed in the first place. Entitlement depends on factors like the roles each spouse took during the relationship and the financial effect of the separation. If you are unsure whether you qualify, that is a question for a lawyer, and the numbers here only apply once entitlement is settled.

Yes. The Spousal Support Advisory Guidelines are advisory, so a judge can order an amount above or below the range, and separating spouses can agree to their own arrangement. The calculator gives Ontario figures using current tax and benefit rules, but it cannot weigh every circumstance a court can, such as very high or very low incomes or unusual expenses. Treat the result as a well-grounded starting point for negotiation, not a final answer.