How is a lump-sum spousal support buyout calculated in Canada?
You take the agreed monthly support and expected duration, then discount that stream of future payments to its present value using a discount rate (typically 2%–5%). Because a lump sum is not tax-deductible to the payor or taxable to the recipient in Canada — unlike periodic support — courts and negotiators usually apply a further tax discount to reflect the lost deduction.
Why is lump-sum spousal support taxed differently in Canada?
Periodic (monthly) spousal support is deductible to the payor and taxable to the recipient under the Income Tax Act. A lump-sum payment is neither deductible nor taxable. Because the payor loses the tax deduction, the lump sum is often reduced (grossed down) so the after-tax cost is comparable to paying periodically.
What are the advantages of a spousal support buyout?
A buyout provides a clean break: the payor's obligation ends permanently, and the recipient receives a guaranteed amount up front with no risk of default, job loss, or the payor's death. It removes the need for ongoing contact and future variation motions. The trade-off is finality — a buyout normally cannot be revisited if circumstances change.
Can a lump-sum buyout be reopened later?
Generally no. A properly negotiated and documented lump-sum buyout is intended to be final and is very difficult to vary, even if the recipient's or payor's circumstances change dramatically. This finality is a key reason to obtain independent legal advice before agreeing to a buyout.