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What Counts as a Material Change in Circumstances?

Writer: Amanda Willing
Amanda Willing
Sep 25
9 min read

Spousal support may have been reasonable when an agreement or court order was made.

Years later, the financial circumstances of one or both former spouses may look very different.


A job may be lost. Someone may retire. Income may increase or decrease substantially. Health may affect a person's ability to work.


But a change in circumstances does not automatically mean spousal support changes too.


Where someone is asking a court to vary an existing spousal-support order, the first question is generally whether there has been a material change in circumstances.


Understanding what “material” means is important because the court does not simply start the support analysis again from the beginning.


What Is a Material Change in Circumstances?

Under the federal Divorce Act, before varying a spousal-support order, the court must be satisfied that there has been a change in the condition, means, needs or other circumstances of either former spouse since the existing support order or last variation was made.


Ontario's Family Law Act similarly allows a court to vary, suspend or discharge a spousal-support order where there has been a material change in the circumstances of the dependant or respondent.


The Supreme Court of Canada has described a material change as a change that, if it had been known when the earlier order was made, would likely have resulted in different terms.


Justice Canada's Revised User's Guide further describes the change as substantial and continuing.


That means the analysis is not simply: “Has something changed?”


The question is whether what changed is important enough, and sufficiently connected to the existing support arrangement, that the earlier order might reasonably have been different had the new circumstances existed at the time.


Does the Change Have to Be Significant?

Yes, in the sense that a trivial difference will not ordinarily justify reopening support.


A small fluctuation in annual earnings may not have the same significance as a substantial and sustained loss of income.


But there is no universal dollar amount or percentage that automatically makes a change material.


Context matters.


For example, the same $10,000 reduction in annual income could have very different consequences for someone earning $70,000 than for someone earning $400,000.


The court looks at the change in the context of the parties' circumstances and the support arrangement already in place.


Materiality is about whether the change could have affected the earlier support result, not simply whether the number looks large in isolation.


Does the Change Have to Be Permanent?

Not necessarily permanent, but generally more than temporary.


The Supreme Court has recognized that a material change ordinarily requires some degree of continuity rather than a short-lived set of circumstances.


For example, a brief slowdown in a business may not justify changing a long-term support order.


A lasting reduction in earning capacity may present a different issue.


Similarly, losing a job does not automatically mean support should immediately be reduced. The analysis may include:

  • why the employment ended;

  • whether the reduction in income appears temporary or continuing;

  • the person's efforts and ability to obtain new work;

  • other available income or financial resources; and

  • what income assumptions were used when support was originally determined.


The circumstances need enough stability for the court to assess what the change actually means.


Does a Material Change Have to Be Unforeseeable?


No.


This is one of the most important misconceptions about spousal-support variations.

Justice Canada's Revised User's Guide specifically cautions that foreseeability is not the legal test.


The fact that an event could have been predicted does not necessarily mean it cannot constitute a material change.


Retirement is a good example.


Most people can foresee that they will eventually retire.


That does not automatically prevent retirement from becoming a material change later.


The better question is whether the circumstances now being relied upon were known or actually taken into account when the existing support terms were established and whether the new situation would likely have resulted in different terms.


This distinction becomes particularly important where an agreement has been incorporated into a support order.


What If the Agreement Already Addressed the Change?

The terms of the earlier agreement or order matter.


Suppose a separation agreement specifically says that spousal support will be reconsidered when the payor retires.


In that situation, the parties have already addressed retirement and created a mechanism for dealing with it.


Or suppose the support terms were expressly based on the recipient returning to full-time employment by a particular date.


Those provisions can help show what circumstances the parties actually considered when support was established.


The Supreme Court has explained that where an agreement is incorporated into an order, its specific terms can inform the court's analysis of whether a later event truly represents a material change.


But that is different from saying: “If the event was foreseeable, support can never change.”


That statement is too broad.


What Changes Can Potentially Qualify?

There is no automatic checklist.


A change that qualifies in one case may not qualify in another.


Depending on the circumstances, issues that may support a variation can include:


  • A Significant Loss of Employment or Income

An involuntary and continuing job loss or substantial reduction in income may be material.

But the court will generally look beyond the new paycheque alone.


For example, a temporary unemployment period can be different from a permanent reduction in earning capacity.


The court may also consider whether the income reduction is voluntary and whether income should appropriately be attributed to the payor.


  • A Significant Change in Health or Ability to Work

A serious change affecting either spouse's ability to earn income can potentially affect support.


What matters is how the change affects the person's actual financial circumstances and the assumptions underlying the existing support arrangement.


  • A Significant Increase in the Recipient's Income

A substantial and continuing increase in the support recipient's income may sometimes justify reconsidering support.


But an income increase does not automatically eliminate entitlement.

The basis for the original support claim still matters.


For example, a strong compensatory claim following a long relationship may raise different considerations from support based primarily on current financial need.


  • Retirement

A genuine retirement and resulting change in income can potentially amount to a material change.


The analysis may include the person's age, timing of retirement, pension or retirement income, other resources and what the existing agreement or order says about retirement.


The fact that retirement was theoretically foreseeable does not, by itself, answer the material-change question.


  • Remarriage or Repartnering

A recipient's remarriage or new relationship can also be relevant.


But repartnering does not automatically terminate spousal support.


Its impact depends on the recipient's changed financial circumstances, the basis for the original entitlement and the terms of the existing agreement or order.


Can the End of Child Support Be a Material Change?

Sometimes the legislation expressly answers this question.


Ontario law gives child support priority when both child and spousal support are being considered.


Where that priority previously resulted in no spousal support being ordered, or in spousal support being set below the amount that otherwise would have been ordered, a material reduction or termination of child support is expressly treated as a material change of circumstances for purposes of reconsidering spousal support.


That is a useful example of why the material-change analysis cannot always be reduced to changes in employment income.


Family circumstances can also affect the support picture.


Is a Material Change Enough to Automatically Recalculate Support?

No.


Establishing a material change gets the variation analysis through the threshold.

It does not mean the court simply erases the previous arrangement and starts again.


The Supreme Court has emphasized that a variation proceeding is not an appeal of the original order and not a completely new support hearing. Once a material change has been established, the variation should respond to the change that actually occurred.


For example, a material reduction in the payor's income may justify reconsidering the support amount.


It does not necessarily reopen every issue that was settled years earlier.


That distinction provides important stability to existing support arrangements while still allowing meaningful changes to be addressed.


What Is the Difference Between a Material Change and a Review?

A variation generally requires the threshold of material change to be established.


A review can operate differently.


Where an agreement or order contains a valid review provision, the parties may be entitled to reconsider the specified support issue when the review date or triggering event occurs without first proving a material change.


The scope of the review depends on the wording.


For example, a clause may allow a review of the amount of support after the recipient completes retraining without reopening entitlement itself.


Justice Canada's guidance emphasizes that a review should not automatically be treated as an opportunity to reconsider every aspect of the original support arrangement.


This is why review clauses need to identify what is being reviewed, when the review happens and what event triggers it.


What If the Support Obligation Comes From a Separation Agreement?

Before applying the material-change test, identify exactly what governs the support obligation.


In Ontario, a domestic contract containing support provisions can be filed with the court.

Once filed, its support provisions may be enforced and varied under section 37 of the Family Law Act as though they were court orders.


A separation agreement may also contain its own review or variation provisions.


And where a party is attempting to depart from a final support release rather than vary an existing support order, a different legal analysis may apply.


So the first step should not simply be:

“Has something changed?”


It should also be:

“What agreement or order currently governs support, and what does it say about change?”


What Should You Do When Circumstances Change?

Do not assume that you should immediately change the payment yourself.


If an existing agreement or order still requires a particular amount, unilaterally reducing or stopping support can result in arrears while the dispute is being resolved.


Instead, preserve evidence of what changed and address the issue promptly.


Depending on the circumstances, useful records may include:

  • termination or employment records;

  • recent pay statements;

  • tax returns and Notices of Assessment;

  • business financial statements;

  • evidence relating to pension or retirement income;

  • documentation relevant to a change in ability to work; and

  • correspondence showing when the change occurred and when it was raised with the other party.


Contemporaneous records can help establish both what changed and whether the change has continued.


How Long Should You Wait Before Seeking a Variation?

There is no single waiting period that applies to every situation.


Moving immediately after a very temporary income fluctuation may make it difficult to establish that the circumstances are continuing.


Waiting too long can create different problems, particularly where a payor continues to accumulate obligations they say they can no longer afford.


The appropriate timing depends on the nature of the change and the existing support terms.


The practical goal is to address a significant change early enough to protect your position, while having enough information to show what has actually changed.


Frequently Asked Questions

What is a material change in circumstances for spousal support?

A material change is generally a substantial and continuing change that, if it had been known when the previous support order was made, would likely have resulted in different terms.


Does a material change have to be unforeseeable?

No. Foreseeability alone is not the test. The analysis focuses on what was known or taken into account when the earlier support arrangement was made and whether the new circumstances would likely have affected the result.


Is losing your job automatically a material change?

No. A genuine and continuing job loss may support a variation, but the court can consider its duration, cause, the person's ability to obtain other employment and the overall financial circumstances.


Can a raise be a material change?

Potentially. A substantial and continuing change in either spouse's income can be relevant, but the result depends on the basis for support and the existing order or agreement.


Does retirement qualify as a material change?

It can. Retirement does not automatically change support, but a genuine retirement that materially affects income may justify reconsideration depending on the existing support terms and circumstances.


Does remarriage automatically end spousal support?

No. Remarriage or repartnering may affect the recipient's financial circumstances and continuing entitlement, but it does not automatically terminate support.


If I prove a material change, does the court calculate support from scratch?

Not necessarily. A variation is not a new initial support hearing. The court considers the change and determines what variation, if any, is justified by it.


Speak With an Ontario Family Lawyer About a Change in Spousal Support

Not every change in circumstances justifies changing spousal support.


The important question is whether the change is substantial enough, continuing enough and sufficiently connected to the existing support arrangement that it could have affected the earlier result.


Willing Law Professional Corporation assists clients in Windsor, Windsor-Essex and across Ontario with spousal support variations, separation agreements, support reviews and related family-law matters.


If your income, employment, retirement plans or other circumstances have changed since support was established, we can review the existing agreement or order and help you understand whether the change may justify revisiting support.


Book a Free No-Obligation 15 Minute Call

Understanding how spousal support may be calculated can help you better prepare for the financial decisions that come with separation.


Book a Free No-Obligation 15 Minute Call to discuss your next steps.


FREE RESOURCES

Separation can involve important decisions about finances, property, support, and your future. Having the right information early can help you understand what to consider and what questions to ask.


Our free Divorce Guide provides practical information to help you better understand the separation and divorce process in Ontario.


Our free Separation Checklist can also help you organize important financial information and identify key issues to consider as you move forward.



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This article is general information about Ontario law and is not legal advice. Reading it does not create a solicitor-client relationship. For advice on your situation, book a free 15-minute strategy call at willinglaw.com.

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