TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Home/Case Studies/Family Law
№ 100 Case Study — Family Law

Turning Years of E-Transfers Into a Real Child Support Order

Sophia and Dimitri never married and never formalized child support — just a rough monthly e-transfer. A proper guideline calculation revealed how expensive that habit had quietly become.

Family Law6 min readCollingwood, OntarioChild support basics
All Family Law case studies
ClientSophia, a surgeon in Collingwood raising a daughter with Dimitri, to whom she was never married
The issueYears of informal, guessed-at support that never matched the guideline table amount
ServiceGuideline child support calculation, retroactive claim, and a self-adjusting support order
ResolutionSupport formalized and set to update automatically each year — but years of shortfall were only partly recovered

The situation

Sophia is a surgeon in Collingwood. She and Dimitri, an investment advisor, were together for two years and had a daughter, Gurpreet, before separating; they had never married. From the time their daughter was two until she turned seven, the two of them ran their entire financial relationship as parents on an informal footing. Dimitri e-transferred Sophia roughly $1,100 a month, an amount the two of them had landed on in an early conversation and never revisited. There was no agreement, no court order, and no real calculation behind the number — just a habit that started small and stayed exactly where it started.

Because Sophia earned well herself, the gap didn't announce itself the way it might have in a lower-income household. She covered shortfalls without noticing them as shortfalls. What changed her mind was less about money than about fairness: Gurpreet started competitive swimming, university savings became a real conversation, and Sophia realized she had no idea whether $1,100 a month bore any relationship to what Dimitri actually earned. Between his investment portfolio and her own practice and home, the two of them individually held assets well into seven figures — none of it shared, since an unmarried couple in Ontario doesn't get the automatic property equalization that applies to married spouses under the Family Law Act. But child support was a different question entirely, and it was one neither of them had ever properly answered.

Sophia came to Treadstone Law wanting three things: a support figure that actually reflected Dimitri's income, some accounting for the years the number had been wrong, and an arrangement that wouldn't require this same conversation again in another five years.

The problem with an informal arrangement

Two things became clear once we asked Dimitri for financial disclosure — tax returns, T4 slips, and a breakdown of his compensation structure. First, his income was far higher and far more variable than the $1,100 figure had ever accounted for. His base salary ran around $150,000, but as an investment advisor his real compensation included an annual performance bonus that had averaged closer to $160,000 over the previous five years, pushing his total income to roughly $310,000 in most of them. Under the Family Law Act, which applies the same Child Support Guidelines to unmarried parents as to married ones, none of that ever entered the calculation. Marital status has no bearing on the obligation to support a child — only income does, and only Dimitri's income mattered for the basic table amount, since Sophia's own earnings as a surgeon don't reduce what he owes for their daughter's day-to-day support.

Second, the guideline table itself only produces a fixed number up to $150,000 of income. Above that threshold, courts have discretion to set an appropriate amount, and that discretion is usually exercised by continuing a similar proportion of income rather than letting the obligation flatten out entirely once someone crosses the line. Run properly, Dimitri's blended income of roughly $310,000 produced a guideline support figure of about $2,850 a month for one child — well over double what he had been transferring.

That left a five-year gap of roughly $1,750 a month, or about $105,000 in total, between what the guidelines would have called for and what Sophia had actually received. The honest question was how much of that Sophia could still claim. Courts look at how much notice the paying parent had that a change was being sought — not a strict deadline, but a real factor in how far back a retroactive award will reach. Sophia had mentioned, more than once, that she thought the number should be higher, but those comments lived in text messages and one dinner-handoff conversation, nothing that clearly put Dimitri on notice that she intended to formally pursue an increase. The one exception was an email she had sent about sixteen months before retaining us, laying out in writing that she believed support needed to reflect his bonus income. That email became the anchor for how far back a retroactive claim could realistically go — not the full five years, and not the date their daughter started swimming, but the date Sophia first put her position in writing.

What we did

  1. Obtained complete income disclosure from Dimitri. We requested five years of tax returns, T4 slips, and a written explanation of his bonus structure, so the guideline calculation rested on documented income rather than estimates either parent had been carrying around informally.
  2. Calculated the guideline table amount, including the bonus years. We ran the numbers using Dimitri's actual total income for each of the five years, showing the guideline figure had climbed well past $1,100 a month long before Sophia raised it — and that the gap wasn't a one-time miscalculation but a pattern that had repeated every year.
  3. Identified the real notice date for the retroactive claim. We reviewed Sophia's texts, emails, and conversations with Dimitri and advised her honestly that only the written email from sixteen months earlier gave clear, provable notice. Arguing for anything further back risked a costly fight for a result unlikely to hold up.
  4. Negotiated a retroactive lump sum and a new ongoing figure. Rather than filing an application and litigating the full history, we opened negotiations with Dimitri's lawyer around the sixteen-month window and the corrected ongoing amount, which moved faster and cost less than a contested motion would have.
  5. Built in an automatic annual adjustment. The new agreement ties support each year to the total income figure on Dimitri's Notice of Assessment, recalculated using the guideline table without either parent needing to renegotiate or return to a lawyer to update it.
  6. Filed the agreement with the Superior Court for enforcement. Filing makes the support terms enforceable through the Family Responsibility Office, which can register the order for automatic withholding directly from Dimitri's pay and bonus disbursements going forward.

The outcome

Dimitri's lawyer didn't dispute the corrected guideline calculation once the disclosure was in — the arithmetic was straightforward once his real income was on the table. Going-forward support moved to roughly $2,850 a month, recalculating automatically each year against his actual total income rather than sitting fixed the way the original $1,100 figure had for five years. On the retroactive piece, Sophia recovered a lump sum of about $28,000, reflecting the sixteen-month window where written notice could be clearly shown.

That left a real shortfall. Measured against the full five-year gap the guidelines would have produced, the household is out roughly $77,000 it will not recover — the years before Sophia's email, when a habit went unquestioned by both of them. We told her plainly that this was a loss, not a technicality, and that it traced directly back to years without a documented request or a formal number to point to.

What the new arrangement fixes is the part that was actually broken: there is now a real guideline calculation behind the support figure instead of a number two parents agreed on once and never checked again, it adjusts on its own as Dimitri's income changes, and it's registered with the Family Responsibility Office so enforcement doesn't depend on either parent remembering to ask. For a family with variable, bonus-heavy income on one side, that automation is the part most likely to prevent the same five-year gap from quietly reopening.

Sophia's reaction, once the numbers were final, was less about the $77,000 she couldn't recover and more about how simple the fix should have been from the start. An informal e-transfer had felt easier for years — until it turned out to be the most expensive option on the table.

What you can learn from this

  • Unmarried parents owe the same guideline-based child support as married ones under the Family Law Act — marital status has no bearing on the obligation.
  • An informal monthly e-transfer, agreed once and never revisited, is not the same as a calculated guideline table amount, and the gap between the two compounds every year it goes unchecked.
  • When a paying parent's income includes bonuses or other variable compensation, the full income figure — not just base salary — has to be used to calculate support.
  • Retroactive support claims are bounded by when clear, written notice was given. Verbal comments and casual texts rarely count; a dated, written request does.
  • Build automatic annual recalculation into a support agreement, tied to a line on the paying parent's tax return, so it adjusts as income changes instead of quietly going stale.
This case study is entirely fictional. It does not describe any real client, file, or matter handled by Treadstone Law, and it is not a real file with details changed. All names, people, properties, businesses, dollar amounts, dates, and events are invented, and any resemblance to a real person, business, or situation is coincidental. Fictional scenarios like this one illustrate the kinds of legal issues people in Ontario commonly face and how a lawyer can help. They are general information, not legal advice — no two matters unfold the same way, and nothing here predicts the outcome of any real case. Reading a case study does not create a lawyer-client relationship. If you are facing something similar, speak with a lawyer about your specific circumstances.

This is a family law problem we handle

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →