TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
№ 207 Case Study — Tax

Why Was the CRA Only Giving Naomi Two Dollars a Day?

An Oshawa investment advisor wanted to know why her home office claim seemed so small next to what colleagues described. The answer involved a flat rate never meant for her situation, and a dispute that got personal before it got fixed.

Tax7 min readOshawa, OntarioHome office expense claims
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ClientNaomi, an investment advisor in Oshawa who also holds foreign stock compensation
The issueA flat-rate home office claim understating deductible expenses, tangled with a broader CRA dispute over foreign stock income
ServiceHome office expense review and CRA dispute resolution
ResolutionHome office claim tripled through a measured claim; the larger dispute settled by negotiated compromise

The situation

'Why am I only getting two dollars a day for working from home when I'm running half my book of business out of that room?' Naomi had been turning that question over since a conversation with Gabriela, a colleague at her firm who mentioned, almost in passing, that her own measured home office claim came in several thousand dollars higher than Naomi's flat-rate amount for what sounded like a similar setup. That was the question Naomi put to us at the first meeting, and it turned out to be the smaller of her two problems. Naomi worked as an investment advisor, splitting her time between a branch office and a dedicated home office where she took client calls, reviewed portfolios, and managed a growing book that included several clients holding employer stock compensation from foreign parent companies. She had used the flat-rate method for home office expenses for two years running, claiming a fixed daily amount for the days she worked from home, because it was simple and her previous accountant had set it up that way.

The flat-rate method, while it existed, was built precisely for simplicity: no receipts, no floor-plan calculations, just a per-day rate multiplied by days worked from home, capped at a modest maximum for the year, and available only for the pandemic years it was brought in to cover. It was designed for employees with occasional or moderate home-based work and modest actual costs, and Naomi's situation had never fit that profile anyway. Her home office was a dedicated room, used exclusively and regularly for her employment duties, with real costs behind it: a share of her mortgage interest, property tax, utilities, and internet, along with a new ergonomic desk setup her employer required but did not reimburse. Naomi's husband, Kenji, a commercial landlord who tracked every actual expense against his own rental properties as a matter of habit, had told her more than once that the flat rate sounded low for someone doing as much client work from home as she did, though neither of them had gotten around to questioning it until the larger CRA matter forced the issue.

The home office question surfaced almost by accident. Naomi had come to us because the Canada Revenue Agency had reassessed two years of her returns over a separate and much larger issue: the tax treatment of vesting foreign stock units and a subsequent sale, where the CRA's auditor had applied a different cost basis than Naomi's own calculation and proposed additional tax, interest, and penalties in a band running from roughly $400,000 to $900,000 depending on how several disputed valuation dates were resolved. In pulling together her full return package to respond, we noticed the home office claim sitting well below what her actual costs would support.

The two issues were unrelated in substance but connected in one important way: Naomi was already anxious and frustrated with the CRA before we started, and the home office discrepancy, small as it was next to the stock compensation dispute, became a flashpoint. She read it as one more sign the system was working against her, and that frustration coloured how she wanted to approach the larger file.

The legal problem

On the home office side, the fix was mechanically simple but required care. The temporary flat-rate method Naomi's previous accountant had set her up with only ever existed for the pandemic years, and by the time this file was under review it was no longer available at all; the detailed method, built on actual costs, was the only route left. That method requires the employer to complete and sign a declaration confirming the home office was a condition of employment or that the employee worked there more than half the time, and it requires the taxpayer to support the claim with receipts and a reasonable calculation of the workspace's share of the home. Naomi's employer had never been asked to complete the form, so the first task was simply getting that document in place before anything else could move.

The stock compensation dispute was the real legal problem, and it was where the twist in this file mattered most. Naomi's employer, a firm with a foreign parent, had granted her restricted stock units that vested over several years. When a batch vested and she later sold a portion, the taxable event depended on the fair market value on the vesting date and the adjusted cost base carried forward for the shares that were sold. Naomi's own tracking, done informally in a spreadsheet, used the vesting-date values reported on her T4 slips. The CRA auditor, working from brokerage statements that recorded the transactions in the foreign currency the shares traded in, had recalculated the same events using a different currency conversion methodology and arrived at a materially higher gain.

Both positions had some grounding, which is what made the file genuinely disputable rather than simply wrong on one side. But by the time it reached us, Naomi had already exchanged several sharp letters directly with the CRA auditor, disputing not just the numbers but the auditor's competence and good faith. The file had become adversarial in tone as much as in substance, and that made it harder, not easier, to get a fair hearing for the technical arguments that actually had merit.

What we did

  1. Obtained the employer declaration and rebuilt the home office claim from receipts. We had Naomi's employer complete and sign the required declaration confirming her home office arrangement, then worked with Naomi to measure the workspace as a share of her home's total area and gather a year's worth of mortgage interest statements, utility bills, and internet invoices, converting the flat-rate claim into a measured claim built on documented actual costs.
  2. Took over all further communication with the CRA auditor. Before addressing the substance of the stock compensation dispute, we asked Naomi to route all further contact through our office. The tone of the existing correspondence was working against her, and a fresh, professional channel gave the file a chance to be reconsidered on its merits rather than in the shadow of an increasingly personal exchange.
  3. Reconstructed the vesting and sale history from primary brokerage records. Rather than relying on Naomi's spreadsheet or the auditor's summary, both of which had already produced conflicting numbers, we pulled the original brokerage confirmations for every vesting event and the subsequent sale, establishing the actual transaction dates, share quantities, and foreign currency amounts as the base facts both sides could work from. Building the record from source documents, rather than from either party's after-the-fact summary, gave us a set of facts neither side could credibly dispute going forward.
  4. Identified where the currency conversion methodology diverged. The core disagreement traced to which day's exchange rate applied to convert the foreign currency values into Canadian dollars for each vesting date, and whether an average-rate convention or a spot-rate convention was more defensible for the specific transactions involved. We prepared a recalculation under each approach so the actual dollar spread between the two positions was clear and quantified rather than argued in the abstract.
  5. Proposed a negotiated position rather than an all-or-nothing dispute. Once the spread was quantified, we recommended Naomi accept the currency methodology that produced a somewhat higher gain than her original claim, in exchange for the CRA accepting her position on two smaller valuation dates the auditor had flagged, and dropping the gross negligence penalty the initial reassessment had proposed. Framing the offer around a specific, quantified trade rather than a general request for leniency gave the auditor something concrete to bring back to a supervisor for sign-off.
  6. Addressed the de-escalation directly with Naomi before finalizing the offer. Naomi's instinct was to keep fighting for the strongest possible number on every disputed date, even where the underlying facts were genuinely ambiguous. We walked through what continued dispute would cost in time, professional fees, and ongoing stress, against what a negotiated middle position would realistically preserve, so the decision to settle was hers, made with the full picture in front of her.

The outcome

The home office claim was resolved cleanly and quickly. Once the employer declaration and supporting receipts were in place, the measured claim came in at roughly three times the flat-rate amount Naomi had been claiming, a modest but meaningful correction that required no negotiation at all, only documentation.

The stock compensation dispute resolved by compromise, and it was a genuine compromise, not a disguised win. Naomi conceded the currency methodology point, which increased her taxable gain above her original position. In exchange, the CRA accepted her position on the two smaller valuation dates and withdrew the gross negligence penalty entirely, since the file's actual dollar movement no longer supported treating the discrepancy as a deliberate or careless misstatement. Of the roughly $400,000 to $900,000 range the initial reassessment had put in play, the final settled figure landed closer to the middle of that band, with interest calculated only on the conceded portion.

Naomi paid meaningfully more tax than her own original spreadsheet had suggested, and she did not get everything the initial dispute had put on the table. But the file closed without further escalation, without the penalty, and without the ongoing correspondence that had been consuming a disproportionate amount of her attention. The home office correction, small in dollar terms next to the larger dispute, was the one part of the file that ended exactly as she had hoped from the first meeting.

What you can learn from this

  • The temporary flat-rate home office method no longer exists; it applied only for the pandemic years it was introduced to cover. Anyone with a dedicated, regularly used home workspace and real costs behind it should be using the detailed method, built on an employer declaration and receipts, rather than assuming a flat-rate shortcut is still on the table.
  • A measured home office claim requires your employer to sign a specific declaration confirming the arrangement. Ask for it early, since gathering it later, once a dispute is underway, adds delay to a file that may already be under time pressure.
  • Foreign stock compensation creates a currency conversion question at every vesting and sale event, and reasonable people can land on different conversion methodologies. Track the actual conversion approach used, not just the dollar totals, so any later dispute has something concrete to work from.
  • How a dispute is communicated affects how it gets resolved. A file that turns adversarial in tone, even when the underlying numbers have merit, tends to move slower and settle worse than one handled through a calm, professional channel.
  • A negotiated compromise on a genuinely disputable point is not a loss. Weigh what continued dispute would cost against what a middle position preserves, including penalties or interest that a settlement can remove even when the core number moves against you.
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.

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