Reassessing a surgeon's home-office claims after his estate lost its filer

The situation

Cristian and his father had never been close in the ordinary sense, but they trusted each other with money, which in a surgical practice built around decades of shared overhead meant something. His father, a surgeon in Hamilton, had spent his last two working years doing one remote consulting day a week from home, claiming a portion of his internet and phone as employment expenses the way his employer's paperwork allowed. When he died, Cristian, as executor, expected the estate to be a straightforward matter of collecting assets and settling debts.

Rui, Cristian's spouse and a partner at a Hamilton engineering firm, stepped in to help manage the estate's finances, since Cristian's medical training had left him with little patience for spreadsheets. Between them they handled the funeral, the property, and what looked like a clean set of final tax returns their father's accountant had always filed on time.

The complication was Amalia, the surgeon who had shared that practice's office with Cristian's father for over a decade, including a single internet and phone plan billed to the practice and apportioned between their two individual employment-expense claims. Each doctor also claimed their own personal home-office top-up on their individual return for the days they worked remotely, but both top-ups were calculated as a percentage of the same shared practice invoices, so a reassessment of one doctor's claim could not be untangled from the other's. Amalia had her own significant income and her own tax exposure tied to how those shared expenses had been split during the final working years, and when a reviewing office opened an audit of the deceased's home-office claims, it inevitably touched the shared records as well, which meant it touched Amalia's returns too.

Amalia did not want a quiet resolution. She had her own accountant and her own counsel, resources well beyond what a modest estate could easily match, and she made clear early on that she intended to push her own interpretation of how the shared expenses should be allocated, regardless of what it meant for Cristian's father's estate. What began as an estate-administration task turned into a reassessment worth hundreds of thousands of dollars, with two parties who needed the same numbers to come out very differently.

Cristian, still adjusting to the loss of his father, found himself negotiating against a woman he had known for a decade as a colleague of his father's rather than an adversary. Rui, more comfortable with confrontation from years in engineering project disputes, pushed Cristian to treat the file as seriously as any other significant financial matter, worried that the family relationship would make Cristian too willing to concede ground just to keep the peace during an already difficult year.

Where it went wrong

The reviewing office's concern was straightforward on paper. A taxpayer who works from home for an employer can generally deduct a reasonable portion of costs like internet and phone, but only the portion that reflects actual work use, supported by a signed form from the employer and a reasonable method of allocation. Cristian's father had claimed a flat percentage each year without much documented basis for how that number was chosen, and the shared bookkeeping records showed inconsistent treatment of the same costs from one year to the next.

That inconsistency became the opening for Amalia's position. Rather than simply defending the flat percentage her late colleague had used, she argued through her advisors that the shared bookkeeping records supported a lower allocation than what the estate needed to prove, because a lower business-use percentage for the deceased meant a correspondingly cleaner position for her own overlapping claims. In effect, the estate and Amalia were arguing over the same pool of expenses, and whichever side's number prevailed shaped the other's exposure.

Rui, going through the practice's shared financial records with an engineer's attention to detail, found the root of the problem: the accountant who had prepared the returns for years had used a rough estimate rather than any actual usage log, and had applied it inconsistently, sometimes to the whole household bill and sometimes to a portion already reduced for personal use, effectively double-counting the reduction in some years. It was an honest mistake compounding over time, not fraud, but it left the estate with very little solid ground to stand on once challenged.

Amalia's team leaned into the ambiguity. With deeper resources to sustain a longer fight, she made clear in correspondence that she was prepared to contest every disputed figure through as many rounds of the objection process as it took, a strategy that put real pressure on an estate with limited cash and a timeline driven by beneficiaries who wanted the matter closed.

There was a genuine legal question underneath the posturing, too, not just a negotiating tactic. Where two people share the same billed office plan and each also claims a personal home-office top-up calculated from it on separate returns, the reviewing office is entitled to ask whether the combined claims, added together, exceed what a single reasonable allocation for that shared line should be. If Amalia's own claimed percentage and the estate's claimed percentage together implied more work-use than the underlying plan could plausibly support, both sides had exposure, which is part of why her advisors were pushing so hard to shift the balance toward her own returns.

What we did

1. Reviewed the full expense history for both working years under audit, comparing what had actually been claimed against what documentation existed, so we understood exactly how weak or strong the estate's position was before responding to a single letter, rather than reacting defensively to the reviewing office's opening figures. This review alone took several weeks given the state of the practice's older shared records.
2. Separated the estate's exposure from Amalia's as a first priority, since the two were not legally the same dispute even though the numbers overlapped, and conflating them would have let her advisors push positions that helped her at the estate's direct expense without the estate having a clear basis to object. We wrote to the reviewing office early to make that separation explicit on the file.
3. Commissioned a reasonable allocation study based on the home's layout, the number of consulting hours documented in his calendar records, and industry-typical ranges for professional home-office use, to replace the flat, undocumented percentage with something defensible on its own terms rather than continuing to rely on an accountant's rough estimate from years earlier.
4. Filed a formal objection to the initial reassessment, laying out the corrected allocation methodology and explaining the accountant's double-counting error clearly enough that the reviewing office could see it was an arithmetic mistake rather than an aggressive claim needing full disallowance, which mattered for how the whole file was treated afterward.
5. Pushed back directly on Amalia's position where it conflicted with the estate's interests, making clear in writing that her financial capacity to sustain a longer dispute did not change the underlying facts, and that the estate would not simply concede ground to shorten the fight regardless of how long her advisors signalled they were prepared to draw it out.
6. Kept the beneficiaries informed at each stage, since a reassessment of this size directly affected what they would eventually receive, and unexpected silence during a year-long dispute tends to erode trust in the executor faster than bad news delivered honestly and on time. We sent a short written update after each major development so nobody was left guessing what was happening or why.
7. Negotiated jointly with the reviewing office once both sides had filed their positions, proposing a middle allocation percentage that reflected genuine work use without the errors of the original filings, aimed at a number both the estate and, separately, Amalia's advisors could each live with for their own returns.
8. Settled the estate's portion at a reduced reassessment figure, formalized in writing, rather than leaving the file open on the chance a further round of negotiation might shave off more, because Amalia's advisors had already signalled they could sustain a longer fight than the estate could afford and further delay would only add cost without a reliable payoff. We advised the beneficiaries on how the resulting liability would be paid from estate funds before final distribution, so nobody was surprised by a smaller inheritance than originally expected.

The outcome

The estate ultimately paid a reassessment in the mid six figures, a real reduction from the reviewing office's opening position but still a significant cost drawn from what would otherwise have gone to the beneficiaries. The corrected allocation methodology held up, which mattered less for the amount already at issue and more for demonstrating that the original flat percentage had never been well supported in the first place, closing off any argument that the whole claim should have been disallowed outright.

Amalia's own returns were resolved separately, through her own advisors, and reached a different number reflecting her ongoing use of the same office arrangement after her colleague's death. The estate had no say in that outcome and did not need one, but the file made clear how much easier the negotiation might have been if the original expense claims, years earlier, had been documented properly from the start rather than left as a rough estimate an accountant repeated out of habit.

The dispute took just under a year from the first reassessment letter to the final settlement, longer than Cristian had budgeted for when he first agreed to serve as executor. Legal and advisory costs on both files, though separate, added a meaningful drag to what each side eventually kept, a cost that rarely shows up in the headline number but that both families felt in the length and difficulty of the year.

For Cristian and Rui, the result was a compromise they could accept rather than one they were pleased with. The estate closed with less than the beneficiaries had expected, and the process took the better part of a year longer than a routine estate administration should, largely because Amalia's resources let her push every disputed point as far as it could go. Cristian said afterward that the hardest part was not the number, but realizing his father's tidy paperwork had never been as solid as everyone assumed, and that the person best positioned to explain it was no longer there to ask.

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