In Ontario, going on maternity leave significantly reduces your income, which family courts recognize as a “material change in circumstances.” This income drop can legally justify a temporary increase in a recipient’s need for spousal support, or a temporary reduction in a payor’s obligation to pay.
Welcoming a new baby is a profound life transition, but navigating maternity leave while dealing with a separation adds immense financial pressure. For many residents across Ontario-from Ottawa to Windsor-transitioning from a full-time salary to Employment Insurance (EI) benefits causes an immediate and drastic reduction in monthly cash flow.
Under Ontario family law, spousal support is heavily reliant on the actual incomes of both parties, governed by the Spousal Support Advisory Guidelines (SSAG). 💰 Because EI maternity and parental benefits max out at roughly $668 per week (as of 2026), a spouse earning $90,000 a year will see their income plummet. Whether you are the one paying support or the one receiving it, this involuntary drop in income triggers a legal right to recalculate your financial obligations.
Step-by-Step Process for Recalculating Support on Leave
You cannot simply stop paying support, nor can you unilaterally demand more money from your ex-spouse just because you had a baby. Modifying a support obligation requires following a formal legal process to update your separation agreement or court order.
Step 1: Prove a Material Change in Circumstances
The cornerstone of changing any support order in Ontario is proving a “material change in circumstances.” 📈 Going on approved EI maternity or parental leave universally qualifies. The change is significant, involuntary (protected by labour laws), and drastically impacts your ability to pay or your need to receive financial help.
Step 2: Calculate Your New EI and Top-Up Income
Your family lawyer will need to determine your exact temporary income. You must provide documentation from Service Canada showing your approved EI weekly benefit rate. Crucially, if your employer provides a “maternity top-up” (e.g., paying you up to 80% of your regular salary for a few months), this top-up must be included as income for the SSAG calculations.
Step 3: Run the Spousal Support Advisory Guidelines (SSAG)
With your new, lower temporary income established, your lawyer will run the SSAG calculation software again. 💼 If you are the payor on leave, the software will generate a new, lower monthly payment range. If you are the recipient on leave, the software will likely show that your ex-spouse needs to temporarily increase their payments to you to maintain the standard of living.
Step 4: Negotiate a Temporary Variation Agreement
Instead of going to trial, most spouses negotiate a temporary variation. 🤝 Your lawyers will draft an addendum to your separation agreement outlining a “step-down” or “step-up” order. For example, it will clearly state: “Support will be reduced to $400/month from June to May while the payor is on leave, and will automatically revert to $1,000/month upon their return to full-time work.”
Step 5: File a Motion to Change (If Disputed)
If your ex-spouse aggressively refuses to adjust the payments, your family lawyer must file a formal “Motion to Change” at the Ontario Superior Court of Justice. The judge will review your EI statements and legally order the temporary modification, often retroactively to the date your leave began.
How Much Does It Cost to Modify Support?
Changing an existing agreement involves legal fees, but securing a temporary agreement out of court is far more cost-effective than falling into arrears or facing financial ruin.
| Legal Service | Estimated Cost (CAD) | Details |
|---|---|---|
| Lawyer Negotiation & Addendum | $1,000 – $2,500 | Drafting a temporary consent agreement to adjust support amounts without stepping foot in a courtroom. |
| Family Mediation (Optional) | $500 – $1,500 | A neutral mediator can help stubborn ex-spouses understand the SSAG math to avoid costly litigation. |
| Filing a Motion to Change | $3,000 – $7,000+ | If litigation is required at the Superior Court, drafting affidavits and attending hearings takes heavy billable hours. |
How Long Does the Process Take?
If both parties are cooperative and communicate before the baby is born, a temporary variation agreement can be drafted and signed in 2 to 4 weeks. If your ex-spouse refuses to negotiate and you must file a Motion to Change in court, the legal process can drag on for 3 to 6 months, though the judge will usually backdate the support adjustment to the start of your leave.
Frequently Asked Questions (FAQ)
Can I just stop paying support while I am on EI?
No. You can never unilaterally stop paying court-ordered spousal support. If you simply stop, the Family Responsibility Office (FRO) can suspend your driver’s licence and garnish your bank accounts. You must obtain a signed agreement or a court order to legally lower the payments.
Does the Canada Child Benefit (CCB) count as my income?
No. The tax-free Canada Child Benefit (CCB) you receive for your new baby is strictly excluded from your income when calculating your obligation to pay spousal support. However, it is factored into complex child support calculations if you share parenting time.
What if I choose to extend my leave unpaid?
Ontario law allows for an 18-month extended parental leave. However, if you choose to take unpaid time off beyond standard benefits, a judge might determine you are voluntarily underemployed. The court could “impute” income to you, forcing you to pay support based on the salary you could be earning if you returned to work.
Will having a new baby reduce the support I owe my ex?
Having a new child with a new partner is generally not an automatic reason to lower spousal support to your first spouse. Ontario courts prioritize “first family obligations.” However, the severe drop in income specifically due to mandatory maternity leave is recognized as a valid reason for a temporary reduction.
Leave a Reply