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№ 77 Family Law

Changing Child Support When Income Changes in BC

Lost a job or is your ex earning more? Learn how child support can be changed in British Columbia, the legal test, and why you should not just stop paying.

Family Law4 min readTSLBy the Treadstone Law Team · British ColumbiaUpdated November 1, 2026
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Key takeaways
  • An existing child support order does not end automatically; a court may change, suspend or terminate it on application.
  • A court must be satisfied of a qualifying change in circumstances, substantial new evidence or lack of disclosure before changing an order.
  • The BC Child Support Recalculation Service can adjust eligible orders each year, so a court application is not always needed.

Incomes change. A payor may lose a job or take a pay cut, and a recipient may learn that the other parent now earns much more. Either way, you may wonder whether the support amount still makes sense.

The short answer is that the existing order or agreement stays in place until it is properly changed. This article explains the test, the recalculation service, and what to gather.

This article covers the law of British Columbia.

Do not change the amount on your own

Support does not end automatically under an existing order. A court may change, suspend or terminate a child support order, prospectively or retroactively, on application. Until that happens, the order is the starting point.

Informal side deals are risky. Parents cannot agree that the other does not have to pay child support, because support is the child's legal right. If you have a written agreement or order, it can be enrolled with the BC Family Maintenance Agency, which can enforce it if necessary; an agreement must first be filed with the court registry to be enrolled.

The legal test for a change

Under the Family Law Act, before changing, suspending or terminating an order the court must be satisfied of one of three things: a change in circumstances under the guidelines, substantial new evidence unavailable at the earlier hearing, or evidence of a lack of financial disclosure discovered after the last order. Under the Divorce Act, the court must be satisfied that a change of circumstances provided for in the applicable guidelines has occurred.

For an order set using a table, a change of circumstances is any change that would result in a different child support order. A meaningful income change is usually the example. For orders not set using a table, it is any change in the condition, means, needs or other circumstances of either parent.

Some situations do not follow the plain table result. If the payor's income is over $150,000, the court may apply the table or may set the table amount for the first $150,000 plus an amount it considers appropriate for the balance. If each parent has at least 40% of parenting time over a year, the court must consider the table amount for each parent, the increased costs of shared arrangements, and each parent's circumstances. Where each parent has majority time with at least one of two or more children, support is the difference between the amounts each would otherwise pay.

Recalculation service: sometimes no court is needed

The BC Child Support Recalculation Service reviews eligible orders and agreements each year. It adjusts support using the paying parent's income tax information and the Guidelines tables. The service is free and applies through the CSRS Portal (1-866-660-2684).

Not every order will be eligible, and some situations, such as sharing parenting time or an older child, may be handled differently. A lawyer can help you confirm whether your order qualifies.

How income is worked out

Annual income is generally found from the Total income heading of the T1 General tax form, adjusted under Schedule III. Where income fluctuates, the court may look at the last three years. Table amounts depend on the payor's income only.

As an example of how the BC table moves, here are some sample monthly amounts for one child. The official table sets income rows in $1,000 steps, so look up your exact row there.

Income rowMonthly basic amountPlus on income over the row
$30,000$2590.4%
$50,000$4680.94%
$75,000$7080.96%
$100,000$9550.94%

Be aware that a court may impute income where a parent is intentionally under-employed or unemployed. A job loss that is voluntary may be treated differently from one that is not. For self-employed payors, the court may include part of a corporation's pre-tax income.

What to do next

Frequently asked questions

I lost my job. Can I just pay less?

No. Support under an existing order does not end automatically, and a court may change it on application. Stopping or reducing payment without a change can lead to arrears, and arrears can be enforced.

Can a change be backdated to the day I lost my job?

A court may vary support retroactively as well as prospectively, but must still be satisfied of a qualifying change, new evidence or non-disclosure. How far back it goes depends on the facts, so get advice and apply promptly.

What if my ex now earns much more?

A significant income increase may be a change that would result in a different table-based order. The court must be satisfied of a qualifying ground before varying.

Can I apply to change support without going to court?

The Child Support Recalculation Service reviews eligible orders each year using the payor's tax information, so a court application is not always needed. You may also reach a new agreement, but parents cannot waive support altogether.

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. British Columbia 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 lawyer who practises in British Columbia. Reach us at 1-844-900-1070 or send our Team a message.

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