# Can I Change Our Agreement or Court Order If My Situation Changes? Life after separation rarely unfolds exactly as expected. Jobs change. Health issues arise. Children's needs evolve. Parenting arrangements that worked when kids were young may not suit teenagers. What seemed like a fair financial arrangement five years ago may no longer reflect reality. If you have a separation agreement or court order that no longer fits your circumstances, you may be wondering whether it can be changed. The answer is generally yes, but how easy or difficult that process is depends on what you're trying to change, whether you have an agreement or a court order, and whether your ex agrees to the change. This article explains when and how you can modify family law arrangements in Ontario, what the legal tests are for different types of changes, and what steps you need to take. ## The General Principle: Material Change in Circumstances The foundation for changing most family law orders is showing that there's been a "material change in circumstances" since the order was made. Generally, you must show a significant change since the order or agreement that matters to the issue you're trying to change, and that would likely have affected the result if it had been known when the order was made. This threshold exists because courts want finality. Parties should be able to rely on orders without constant relitigation. At the same time, the law recognizes that circumstances genuinely change and arrangements need to adapt. What qualifies as a material change depends on what type of order you're trying to change. The exact threshold and how courts assess it varies for child support, spousal support, and parenting arrangements. ## Changing Child Support Child support is the most flexible type of family law order when it comes to changes. Because child support is primarily based on income under the [Federal Child Support Guidelines](/blog/child-support-ontario-how-calculator-works), it's expected to adjust when income changes significantly. **What qualifies as a material change for child support:** A significant change in either parent's income (for shared parenting situations, both incomes matter). A change in parenting time that crosses the 40% threshold for shared parenting. A child becoming independent or no longer qualifying as a "child of the marriage." Changes in section 7 special expenses (childcare ending, new extracurricular activities, post-secondary education beginning). **How child support changes work:** If you have a court order, you generally need to bring a motion to change (Form 15 in Ontario) unless you qualify for Ontario's Child Support Recalculation Service, which can administratively adjust support based on updated income information without going to court. If you have a [separation agreement](/blog/separation-agreement-ontario-what-to-include), you and your ex may be able to simply agree to new terms and sign an amending agreement. If you can't agree, you can ask a court to set a different amount. Courts have more willingness to override agreement terms for child support than for other issues, particularly if the current amount doesn't align with the Guidelines or doesn't meet the children's needs. **Important note:** Child support doesn't automatically update when circumstances change. The amount only changes if you update it by agreement, through a recalculation service (if eligible), or by getting a new court order. If you don't take action, the old amount continues to apply. ## Changing Spousal Support Spousal support is generally harder to change than child support, particularly if you have a separation agreement rather than a court order. **Changing a spousal support court order:** If a court ordered spousal support, you can apply to change it by showing a material change in circumstances. Common examples include: The paying spouse's income has dropped significantly (job loss, retirement, disability). The receiving spouse's income has increased substantially or they've become self-sufficient. The receiving spouse has entered a new relationship that affects their financial situation (this may be grounds to vary, though it doesn't automatically end support). Health changes that affect either party's ability to work or need for support. The original order was based on assumptions that haven't materialized. The court will consider whether the change justifies modifying support, and if so, what the new amount and duration should be. The [Spousal Support Advisory Guidelines](/blog/when-you-may-not-have-to-pay-spousal-support-canada) may inform the analysis, though they're not binding law. **Changing spousal support in an agreement:** This is more difficult. Courts generally respect what parties agreed to in a domestic contract, and the test for setting aside or departing from an agreement is demanding. Courts may set aside or decline to follow spousal support terms in an agreement if: There were serious problems when the agreement was made (lack of financial disclosure, no independent legal advice, duress or pressure, lack of understanding). The agreement is substantially unfair in light of the circumstances at the time it was made. The agreement no longer reflects the objectives of spousal support under the [Divorce Act](/glossary#letter-d) because of changes since it was signed. Courts apply a structured analysis to spousal support clauses in domestic contracts, and the threshold to override an agreement can be high. Even with a significant change in circumstances, courts don't automatically rewrite agreements. They ask whether the agreement still represents a fair resolution, considering both what the parties intended and the current situation. If you waived spousal support entirely in your agreement, it may be very difficult to obtain support later, even if your circumstances have worsened. ## Changing Parenting Arrangements Parenting orders (decision-making responsibility and parenting time) can be changed, but the court's focus is always on the [best interests of the child](/glossary#letter-b), not on what the parents want. **The legal test for changing parenting orders:** Under the [Divorce Act](/glossary#letter-d), a court cannot vary a parenting order unless there has been a change in the circumstances of the child since the order was made. If that threshold is met, the court then makes whatever order is in the child's best interests. The Act specifically treats a parent's plan to relocate as a change in the child's circumstances, which is why relocation often triggers a variation application. **Examples of changes that might support a variation:** A parent relocating to a different city or province. A child's needs changing significantly as they grow (different school requirements, activities, health needs). Safety concerns arising (substance abuse, family violence, neglect). A parent's work schedule changing in ways that affect their availability. The current arrangement simply not working well for the child. An older child's own preferences changing (courts give more weight to children's views as they mature). **Changing parenting terms in an agreement:** Unlike spousal support, courts are quite willing to override parenting terms in agreements if the current arrangement isn't serving the child's best interests. Parents cannot contract out of the court's ability to make orders that protect children. If circumstances have changed and the agreed arrangement no longer works for the child, you can ask the court for a different order. ## Agreements vs Court Orders: Key Differences Understanding whether you have an agreement or a court order matters because the process and legal tests differ. **Separation agreements** are contracts between you and your ex. To change an agreement: You can both agree to amend it (this is the simplest path). If you can't agree, you may need to go to court. For child-related terms, courts will intervene more readily. For spousal support, courts are more reluctant to override what adults agreed to. For property division, agreements are very difficult to reopen after they're finalized. **Court orders** are decisions made by a judge. To change a court order: You typically need to bring a motion to change (Form 15 in Ontario). You must show a material change in circumstances. The court will decide whether the change justifies a new order. **Consent orders** (where parties agreed and asked the court to make their agreement into an order) are treated as court orders, so you'd follow the court order process to change them. ## What About Property Division? Property division is treated very differently from ongoing support or parenting issues. In most cases, property division is final once it's done. For married couples in Ontario who have divided property through [equalization](/blog/dividing-property-ontario-separation-divorce), reopening that division is extremely difficult. There are limited exceptions (for example, serious non-disclosure or fraud), but reopening property terms is uncommon and difficult. Courts almost never revisit property matters after they're resolved, even if circumstances change dramatically. This is one reason it's so important to get [proper legal advice](/blog/how-to-choose-a-divorce-lawyer-in-ontario) and complete financial disclosure before finalizing property arrangements. Unlike support, you typically don't get a second chance if you later realize the deal wasn't fair. ## The Process for Changing a Court Order in Ontario If you need to change a court order, here's what the process typically involves: **Step 1: Determine if you have grounds.** Before starting, honestly assess whether you have a material change in circumstances that would justify a variation. Talk to a lawyer if you're unsure. **Step 2: Try to reach agreement.** Courts expect you to attempt to resolve matters before litigating. If you and your ex can agree on changes, you can file a consent motion or prepare an amending agreement. **Step 3: Prepare your motion to change.** If you can't agree, you'll need to prepare Form 15: Motion to Change, along with supporting documents (such as an affidavit explaining the change and current financial disclosure if support is involved). The exact forms and steps depend on what you're changing and whether it's on consent. **Step 4: Attend a case conference.** In Ontario, you typically need to attend a case conference before you can bring a motion to change, with some exceptions for urgent matters or consent situations. **Step 5: Bring your motion.** If the matter doesn't settle at the conference stage, you'll proceed to a motion where a judge will decide whether to change the order. **Step 6: Update FRO if applicable.** If support is being enforced through the Family Responsibility Office, make sure they receive the new order so enforcement reflects the current terms. ## When Courts Are More Likely to Grant Changes Courts are more likely to vary an order when: The change in circumstances is clearly significant and documented. The change wasn't anticipated when the original order was made. You applied reasonably promptly after the change occurred. The proposed new arrangement is fair and workable. For parenting matters, the change serves the child's best interests. ## When Courts Are Less Likely to Grant Changes Courts are more hesitant to vary an order when: The change is minor or the request seems like an attempt to relitigate. The circumstances were foreseeable when the original order was made. You've waited a long time without explanation to seek the change. You're trying to escape obligations you freely agreed to. The change you're requesting doesn't align with the evidence of changed circumstances. ## Practical Tips **Document the change.** Keep records that demonstrate how and when your circumstances changed. Pay stubs showing income changes, medical records, correspondence about parenting issues, and similar documentation will support your case. **Act promptly.** If circumstances have changed significantly, address it sooner rather than later. Long delays can make it harder to get relief, especially retroactive changes. **Try to negotiate first.** If possible, work with your ex to agree on changes. This saves time, money, and stress. [Mediation](/blog/how-to-choose-a-divorce-mediator-in-ontario) can help if direct negotiation is difficult. **Get legal advice.** The tests for varying orders can be complex. Even a consultation with a [family law lawyer](/blog/how-to-choose-a-divorce-lawyer-in-ontario) can help you understand whether you have a strong case and what the process involves. [Unbundled legal services](/blog/unbundled-limited-scope-family-lawyers-ontario) can make this more affordable. **Be realistic about agreements.** If you signed an agreement, especially one dealing with spousal support, understand that changing it may be difficult. Courts respect what adults agreed to, and "I changed my mind" or "I didn't realize the implications" often isn't enough. **Focus on the children.** For parenting matters, frame your request around what's best for the children, not around what you want or what would be more convenient for you. ## Key Takeaways **Material change in circumstances is typically required.** To change most court orders, you need to show a significant change that would have affected the original result if known at the time. **Child support is the most flexible.** Because it's income-based, child support is expected to adjust when income changes. Ontario's recalculation service can help with straightforward cases. **Spousal support in agreements is harder to change.** Courts respect what parties agreed to and don't easily override domestic contracts, especially for spousal support. **Parenting orders require a change in the child's circumstances.** Under the Divorce Act, the court must find a change in the child's circumstances before it can vary a parenting order, then decides based on the child's best interests. **Property division is generally final.** Unlike ongoing support or parenting, property matters are very difficult to reopen once resolved. **Agreement to change is the easiest path.** If you and your ex can agree on new terms, you can avoid the cost and uncertainty of litigation. **Act reasonably promptly.** Waiting too long to address changed circumstances can hurt your case. **Get legal advice for complex situations.** The legal tests and procedures can be nuanced, and professional guidance helps you understand your options. ### Disclaimer This article provides general information about changing family law agreements and court orders in Ontario. It is not legal advice. The legal tests for variation depend on the type of order, the specific terms of your agreement or order, and your particular circumstances. What qualifies as a material change is assessed case by case. For advice about your situation, speak with a family law lawyer.