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Changing a Spousal Support Order in Ontario: Motion to Change

Learn the test for a material change, common reasons to vary spousal support, and the motion to change steps and deadlines in Ontario.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 6, 2026
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Key takeaways
  • Under the Divorce Act, a court can vary, rescind or suspend a spousal support order, and before it varies one it must be satisfied that either former spouse's circumstances have changed since the order or the last variation.
  • Only a court can change support terms; the Family Responsibility Office cannot.
  • After a motion to change is issued, you must serve the other spouse within 30 days and file an Affidavit of Service (Form 6B).

Life does not stay still after a spousal support order is made. A payer may lose a job or retire. A recipient may start working full time or move in with a new partner. When that happens, many people wonder whether they can simply pay less, stop paying, or ask for more.

The short answer is that the order stays in force until a court changes it. This article explains the test for a change, the common reasons people ask for one, and the basic steps in Ontario. Every situation turns on its facts, so a lawyer can confirm how this applies to you.

The test: a change in circumstances

Under the Divorce Act, a court can vary, rescind or suspend a spousal support order, either retroactively or prospectively, on the application of either or both former spouses. Before it varies an order, the court must be satisfied that either former spouse's circumstances have changed since the order or the last variation, and it must take that change into account.

A variation requires a material change in circumstances. A variation is different from a review. A review is more like an initial application, and the terms of the review clause should limit what is reviewed.

Orders made under Ontario's provincial law may follow their own rules, so it is worth confirming which law governs your order before you start.

Common reasons people ask for a change

The reasons below come up often. Whether any of them is enough in your case depends on the facts, and results can differ a great deal.

The Spousal Support Advisory Guidelines are not law, but judges often base their spousal support decisions on them. They apply on variation and review, but should be used with considerable caution where complex entitlement issues arise.

Time-limited orders are harder to reopen

If support was ordered for a definite period or until a specified event, a court cannot later resume it unless two things are shown. The variation must be needed to relieve economic hardship from a related change, and the changed circumstances would likely have produced a different original order.

For a recipient, this means an end date in your order is not easy to undo. For a payer, it means the order may already have a built-in finish line.

Support described as indefinite does not necessarily mean permanent. It only means no time limit could be set when the order or agreement was made, and the support stays subject to variation and review.

The steps for a motion to change

Only a court can change an order, through a motion to change. The Family Responsibility Office cannot change support terms. After the motion to change is issued, you must serve the other spouse within 30 days and file an Affidavit of Service (Form 6B). The other spouse has 30 days to respond, or 60 days if they live outside Canada or the United States.

If you are in a separation agreement rather than a court order, the agreement is not automatically filed with the Family Responsibility Office. It must be filed with a court and then registered before the office can enforce it.

What to do next

Acting on your own, such as paying less without a court order, can create arrears that are enforced against you. The Family Responsibility Office's enforcement tools include support deduction orders sent to employers and bank garnishment. A lawyer can explain the risks before you act.

Frequently asked questions

Can I just stop paying if my income drops?

Not safely. Only a court can change an order, through a motion to change. Under the Divorce Act, a court can vary, rescind or suspend a spousal support order retroactively or prospectively. Orders made under Ontario's provincial law may follow their own rules, so it is worth confirming with a lawyer which law governs yours.

Does retirement end spousal support?

Retirement is one of the reasons spousal support ends, and if the order or agreement says nothing about it, it is usually a material change that can support a variation. Courts closely examine early retirement, and a voluntary one that is not necessary or reasonable may leave support unchanged.

Does a new relationship end support automatically?

No. A recipient's remarriage or new relationship does not automatically end spousal support, though support is often reduced and sometimes ended.

How long does the other person have to respond?

The other spouse has 30 days to respond, or 60 days if they live outside Canada or the United States.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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