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Can the amount of child support change?

Published: November 7, 2013

Last Updated: June 16, 2026

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Can the amount of child support change?

As your child grows, circumstances will inevitably change. Your child’s financial needs tend to increase as they get older, and your financial situation could change as well. You could move, change jobs, or any number of events could impact your financial situation. Many parents wonder how these changes might affect their obligations with regard to spousal support and child support. This article will answer your questions regarding when and how a child support order can be varied.

Child Support Determined by Table

If your child support order was determined according to the applicable provincial or territorial table, then you may seek a variation to the order when there is any change in circumstances that would result in a different amount pursuant to the table.

Applicable changes include when the paying parent’s annual income and capacity to pay child support has increased or declined due to circumstances out of the parent’s control. Thus, if you were to lose your job, or alternatively experience a promotion, the amount you owe in child support may need to be varied.

However, it is important to keep in mind that this does not apply where parties intentionally choose to be unemployed or underemployed. You cannot quit your job in an attempt to avoid paying child support. In the situation where you are hoping to have the amount of child support reduced, or if you are hoping to have child support payments end altogether, you will need to be prepared to provide reliable and credible evidence of your reduced annual income.

Other changes may warrant a change in the child support amount as well, such as newly encountered or extraordinary expenses, a reconstitution of either household, relocation requiring a different table to apply, or the implementation of revised table amounts.

Child Support Not Determined by Table

Even when child support has not been determined by a provincial or territorial table, but rather by another means, it may still be varied. In this case, if there has been a change in the condition, means, needs, or other circumstances of either spouse or former spouse, or the child, a variation may be appropriate. This standard is much broader than the standard used if you are seeking a variation of an amount determined by the appropriate table. The court has much discretion in these cases because of the wide range of relevant considerations.

The court will consider any “material” change in circumstances – this simply means changes that would have resulted in a different amount if they were present at the time the original order was issued.   A material change must be significant, long lasting, and involuntary. A temporary hiatus from work does not negate a parent’s obligation to support his or her children.  And, as we discussed previously, a court will not entertain a variation request where a party has become intentionally and purposefully unemployed or underemployed.

Reducing Arrearages

Say you have fallen significantly behind on your child support payments and are obligated to pay a large sum in arrears. You may have fallen behind on your payments for a myriad of reasons, but under the right circumstances you can get the amount you owe in arrears reduced.

If you are seeking to have the amount you owe in arrears reduced, you bear the burden of proving to a judge that there has been a significant and long lasting change in circumstances.

In considering whether there has been such a change in circumstances rendering a remission of arrears appropriate, the court will consider the following factors:

  • the nature of the support obligation sought to be varied;
  • the obligor’s ability to pay the arrears when they fell due;
  • the ongoing financial capacity of the obligor;
  • the ongoing needs of the payee and child;
  • unreasonable and unexplained delay by the payee in enforcing the arrears;
  • unreasonable and unexplained delay by the payor in seeking relief from the support obligation; and
  • whether enforcement of payment will cause hardship to the payor.

It is very rare for a court to reduce or cancel an amount owed in arrears – it is only appropriate in cases where it would be grossly unfair not to reduce or cancel the amount owed. If you fail to prove this however, you may still be granted relief in the form of a realistic payment plan over time.

In sum, if you have experienced a significant change in circumstances, you may be able to have the amount of child support you are obligated to pay altered.

Written by Lisa Gelman

Senior Lawyer

Senior Lawyer Lisa Gelman has over 25 years of family law experience and founded Gelman & Associates to provide strategic legal counsel in family law matters concerning divorce, parenting, separation, and more.

Frequently Asked Questions - child support

In cases involving child support, you must typically serve and file financial disclosure. Financial disclosure is providing facts about your finances to the opposing party and the court, including your income, spending, assets such as property and other valuables, as well as debts.

Yes, it may be possible for you to pay for child support directly to your child, but it’s worth noting that this only happens in rare cases. Usually, you’re obligated to pay it to the other parent.

The province asserts the rights of the child through child support. As such, neither parent has the legal ability to bargain away or waive child support.

Parenting arrangements affect child support. Under Section 9 of the Federal Child Support Guidelines:

Where a spouse exercises a right of access to, or has physical custody of, a child for not less than 40 percent of the time over the course of a year, the amount of the child support order must be determined by taking into account:

  1. the amounts set out in the applicable tables for each of the spouses;
  2. the increased costs of shared custody arrangements; and
  3. the conditions, means, needs and other circumstances of each spouse and of any child for whom support is sought.

The Ontario courts have broad discretion to determine the merits and context of a child’s post-secondary education and when child support payments should cease.

No. Child support is memorialized in the divorce settlement agreement. It is not affected by the marital status of the parents.

Child support depends on the annual gross income of the parents.

Child support is calculated by considering the following:

  • The number of children that require support
  • The paying parent’s residential province
  • The paying parent’s annual income before tax

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