For nearly eight years, Ontario parents relied on the same “math” to determine child support. But as of October 1, 2025, the game has changed. The Federal Government has officially updated the Federal Child Support Tables, and if you are a payor or a recipient of support, your current monthly amount might no longer comply with the law.
Why the Change? Why Now?
Child support in Canada is calculated using a formula that balances a parent’s income against the tax they are expected to pay. Since the last update in 2017, federal and provincial tax rules have shifted significantly—not to mention the dramatic increase in the cost of living.
The 2025 tables incorporate the most recent tax data (up to the 2023 tax year) to ensure that the “table amount” accurately reflects what a parent can actually afford to pay in today’s economy.
Three Key Changes Every Ontario Parent Needs to Know
1. The New “Zero-Support” Threshold
In 2017, anyone earning less than $13,000 per year generally had a $0 support obligation. Because of increases to the Basic Personal Amount (the amount you can earn before you start paying income tax), that threshold has been raised.
- The 2025 Rule: If a payor parent earns $16,000 or less annually, their basic table amount is now $0. This reflects the reality that at this income level, there is no “disposable” income left after basic survival.
2. Small but Significant Shifts for Mid-to-High Earners
For parents earning between $45,000 and $150,000, the changes are more subtle but still present. Depending on your specific bracket and the number of children, you may see a 1% to 2% difference in the monthly amount.
- While an extra $20 or $30 a month might seem small, over the course of a year—or until a child reaches 18—that “small” difference adds up to thousands of dollars.
3. It’s Not Automatic
This is the most important takeaway: Your child support does not change on its own. If you have a court order or a signed separation agreement from 2023, the Family Responsibility Office (FRO) will continue to collect that old amount until you take action. The new 2025 tables only apply automatically to new orders made after October 1st.
Does This Count as a “Change in Circumstances”?
In family law, to change a court order, you usually need to prove a “material change in circumstances.”
The Department of Justice has clarified that if the new 2025 table amount is different from your current order, this may be considered a change in circumstances. This gives parents a legal “open door” to request a variation of their support amount to bring it in line with the new 2025 standards.
How to Check Your New Number
The Government of Canada has updated its Child Support Look-up Tool for 2025. You can enter your 2024 gross annual income, the number of children, and “Ontario” to see exactly what your new obligation (or entitlement) looks like.
What Should You Do Next?
If you realize your current support amount is out of sync with the 2025 tables, you have three main paths:
- The Consent Route: If you and the other parent agree, you can sign a simple “Change of Support” agreement and file it with the court.
- Recalculation Service: If your original order allows for it, you can use the Ontario Child Support Service to update the amount online without a lawyer.
- Variation Application: If the other parent refuses to acknowledge the new tables, you may need to file a Motion to Change in court.
Find Out More
Find out more about Guthrie Law’s child support services here.
The information provided on this blog is for general informational purposes only and does not constitute legal advice or a legal opinion. No solicitor-client relationship is created by your use of this site or by any communication sent to Guthrie Law through this website. While we endeavour to keep the information up to date and correct, laws in Ontario change frequently. You should not act or rely on any information on this website without seeking the advice of a qualified lawyer regarding your specific situation.
