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

A tax credit dispute that outlasted the move to Timmins

Sofia relocated to Timmins with her daughter after separating from Amalia elsewhere, expecting a fresh start. Instead, a dispute over who could claim their child as an eligible dependant followed her north.

Family Law9 min readTimmins, OntarioCredits after a change of status
All Family Law case studies
ClientSofia, a surgeon who moved to Timmins with her daughter after separating from Amalia
The issueA dispute with Amalia over which parent could claim their shared child as an eligible dependant on a tax return, under a schedule both parents described differently
ServiceReviewed Sofia's own parenting-time records against her account of the schedule and helped her correct course before the dispute went further
ResolutionLoss contained — Sofia gave up her claim for the disputed year, but acting on the evidence early limited the damage to one year rather than an ongoing pattern

The situation

What Sofia was actually afraid of was not the tax dispute itself. It was that her daughter's therapist, her pediatrician, her school registration, all the practical continuity a nine-year-old needs after a move, would get tangled up in a fight with Amalia over a few thousand dollars in tax credits. Sofia was a surgeon, and after separating from Amalia in another province she had relocated to Timmins for a hospital position, bringing her daughter with her under an informal arrangement that both parents had agreed to before the move.

The family sat well into the wealthy income band, with combined family property, including investment accounts and Amalia's interest in an advisory practice, somewhere between $1 million and $4 million. The tax dispute itself was small against that backdrop. It centred on the eligible dependant credit, a tax provision that lets a parent claim a credit for a shared child, but only one parent can claim it for any given tax year, and the child has to have lived with the claiming parent in a home that parent maintained. Child support is usually what decides the question for separated parents, since a parent who pays support for the child generally cannot claim the credit for them, but neither Sofia nor Amalia paid or received support for their daughter under any order or agreement, so here it came down to the actual pattern of where the child lived and who provided primary care.

Amalia had claimed the credit for the year of the move, on the position that she had been the primary caregiver for most of it, since Sofia's relocation to Timmins did not happen until partway through the year and Amalia argued the child had lived with her, in the original city, for the majority of the months before that. Sofia disagreed, and came to us confident that her daughter had been with her for most of the year, since the move had felt, from her side, like it happened early rather than late.

Sofia's underlying worry, the one she led with when she first called, was that a fight over a tax credit would spill over into something that actually mattered to her daughter's stability. She had already gone through one contested separation, in the province they had left, and she was determined not to repeat that experience over what she assumed was a straightforward factual question. She wanted, specifically, to avoid a scenario where Amalia's lawyers used the tax dispute as an opening to question the informal parenting arrangement itself, reopening issues Sofia believed had already been settled between the two of them.

The dispute mattered beyond the dollar amount because it set a pattern. If Amalia's claim for that year stood unchallenged, it risked becoming the reference point for how future years, and eventually a broader parenting arrangement, would be described and argued over. Sofia wanted it resolved cleanly, and wanted, above all, to avoid the credit dispute becoming a proxy for a larger fight about her daughter's schedule.

What the other side was relying on

Amalia's position rested on a specific claim about timing: that the actual relocation, and with it the shift in where the child was living day to day, happened later in the year than Sofia remembered it. Amalia's side had put together a timeline built around school records in the original city, a lease termination date for Sofia's former residence there, the date Sofia's hospital position in Timmins formally began, and a string of dated text messages between Sofia and Nirosha, Amalia's partner, coordinating pickups in the months before the move was finished.

That timeline, on its face, supported Amalia's version. The hospital position started roughly two-thirds of the way through the year, and Amalia argued that the child had remained primarily with her, with visits to Sofia, until the point Sofia's new home and school arrangements in Timmins were actually in place. Under the eligible dependant credit rules, the claim generally follows whichever parent actually had the child in their primary care for most of the year, not which parent intended to have primary care or which parent the child would eventually live with going forward. Amalia's lawyer made this point directly, arguing that Sofia's version of events relied on treating the move as complete the moment the decision was made, rather than the point the child's actual day-to-day life shifted to Timmins.

Sofia's account, when we first discussed it, was that the transition had happened earlier, closer to the midpoint of the year, with the child staying with her in temporary housing in Timmins while the move was finalized. If that were accurate, the balance would have tipped in Sofia's favour instead. The two accounts could not both be right, and resolving the dispute meant establishing, with actual records, what had happened rather than relying on either parent's recollection of a stressful, transitional period. Sofia was confident enough in her version that her initial instinct was to have us respond immediately and firmly, disputing Amalia's timeline in writing before any records had been pulled.

This is where the case became harder than it first appeared. When we asked Sofia for her own documentation, the school registration date for her daughter's new school in Timmins, medical appointment records, and her daughter's own extracurricular schedule, the records did not support Sofia's recollection. They lined up much closer to Amalia's timeline. The school enrollment was dated close to the hospital start date, not months earlier, and a set of pediatrician visit records from the original city continued through most of the year in question, including two appointments Sofia had genuinely forgotten had taken place after the date she believed the move was complete.

The gap between what Sofia remembered and what her own records showed was not large in absolute terms, a matter of a couple of months, but it was large enough to shift which parent's claim the documented facts actually supported. That kind of gap is common after a stressful transition, where the emotional sense of when a chapter ended does not match the calendar.

What we did

  1. Slowed down the response Sofia wanted to send immediately. Sofia's first instinct was to have us dispute Amalia's timeline in writing right away, confident her version was correct. We held off on any substantive response until we had pulled Sofia's own records, because a firm position taken before verification is much harder to walk back than a considered one taken after.
  2. Requested the underlying records before advancing any position. Rather than filing a response based on Sofia's recollection, we asked for the school enrollment date, medical records, and any dated correspondence about the move, treating Sofia's memory as a starting point to verify rather than a fact to build on. This is standard practice in any dispute involving a factual timeline, and it is what surfaced the contradiction early rather than after a position had already been taken publicly.
  3. Laid the records out against Sofia's account, in order, before advising her. Once the documents were in hand, we walked Sofia through the actual dated timeline alongside what she had told us, so she could see for herself where the two diverged. This step matters because a client needs to understand the evidence, not just be told the conclusion, especially when the conclusion is unwelcome.
  4. Assessed what the contradiction meant for the dispute realistically. With school and medical records both pointing to a later transition date than Sofia remembered, we advised her that pressing the original claim risked more than losing the credit dispute. It risked her credibility on the broader parenting record if the contradiction surfaced later in a more consequential context, once Amalia's side inevitably produced the same documents themselves.
  5. Recommended withdrawing the disputed claim for that tax year rather than contesting it. Given the documentary record, we advised Sofia that continuing to assert primary care for the disputed year was not supportable, and that the better course was to concede that year's claim to Amalia rather than litigate a position the evidence did not back and lose control of how the concession eventually happened.
  6. Confirmed the schedule going forward in writing. To prevent the same ambiguity from recurring, we worked with Sofia to document, clearly and contemporaneously, the parenting schedule from the point the Timmins move was actually complete, so future tax years would not depend on anyone's memory of when a transition happened, and so no later dispute could rely on the same kind of confusion.
  7. Communicated the concession to Amalia's side directly and without delay. Once Sofia agreed to the approach, we notified Amalia's counsel that the disputed year's claim would not be contested, framing it as a factual correction rather than a broader concession about the parenting arrangement, to keep the dispute contained to the single tax year and control the narrative before Amalia's side could frame it differently.
  8. Confirmed in writing that the concession did not extend to the broader parenting arrangement. Because Sofia's core fear was that the tax dispute would spill over into the informal custody arrangement, we made sure the correspondence to Amalia's side explicitly framed the concession as limited to the disputed tax year, with no admission about the reasonableness or permanence of the current parenting schedule.

The outcome

Sofia gave up her claim to the eligible dependant credit for the disputed tax year, which meant Amalia's claim for that year stood. In dollar terms, this was a modest concession against a much larger family property picture, but it was still a real loss, and one that came from acting on inaccurate recollection rather than from a weak legal position. Had Sofia's instinct to dispute the claim immediately been followed, the eventual concession would have looked very different, coming only after Amalia's side had already produced the same records themselves and after Sofia's credibility had taken the hit instead of the claim.

What the early correction did protect was everything downstream of that single year. Because Sofia's side conceded promptly and on the strength of her own documentation, rather than contesting the point and being contradicted by her own school and medical records later, the dispute did not become an argument about Sofia's honesty or reliability as a parent. It stayed a narrow, factual disagreement about one tax year, resolved by the evidence. Amalia's side did not raise the parenting arrangement itself at any point after the concession, which was the outcome Sofia had been most anxious to avoid from the start.

Going forward, the written schedule we helped put in place gave both parents a clear, dated reference point for the year the Timmins move was actually complete, removing the ambiguity that had caused the dispute in the first place. Sofia's later tax filings, for the years after the move was fully settled, went unchallenged. The lesson for Sofia was an uncomfortable one, that her own memory of a difficult period had not matched the record, but acting on that once it became clear limited the damage to a single conceded year rather than a credibility fight that could have coloured a much larger set of family issues. She still describes the folder of medical and school records as the single most useful thing that came out of the dispute, more useful in the end than the credit itself would have been.

What you can learn from this

  • Before disputing a factual timeline, gather your own documentation first. Recollection of a stressful transition period is often less reliable than school, medical, or correspondence records.
  • If your own records contradict your recollection, conceding the specific point early usually costs less than pressing a claim that later documentation can unravel in a more consequential setting.
  • Only one parent can claim a shared child as an eligible dependant for a given tax year. Child support is usually what decides who that is, since a parent paying support for the child generally cannot claim the credit for them; only where no support is owed does the claim turn on where the child actually lived.
  • Document a change in parenting schedule in writing at the time it happens. A clear, dated record prevents disputes over which parent had primary care in a transitional year.
  • A narrow factual concession, made promptly, can protect your broader credibility even when it costs you a specific claim.
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 →