Missed Objection Deadline, Corporate Tax Bill Averted in Kingston

The situation

Heather had run her construction project management consulting corporation out of Kingston for close to a decade, contracting her services to residential and commercial builders across the region. Her spouse, Oksana, worked as a pharmacist, and between the two of them the household finances were stable and well organized on paper. The corporation's books were handled by an outside accountant, Taras, who prepared the annual corporate tax return and filed the HST returns each quarter.

In the spring, the corporation was selected for a CRA audit covering two prior tax years. The auditor focused on payments the corporation had made to subcontractors and the input tax credits, the HST paid on business purchases that a registrant can deduct from the HST it collects, claimed on those payments. Several months later, a Notice of Reassessment arrived by mail, disallowing a large share of the claimed input tax credits and reclassifying a portion of the subcontractor payments as not properly documented business expenses. Combined with arrears interest and penalties, the reassessment put roughly $310,000 in dispute.

The letter landed during a difficult stretch. Oksana had just changed jobs and Heather was mid-project on a large commercial build, and the reassessment sat in a stack of mail for several weeks before anyone looked at it closely. Taras assumed Heather had already flagged it for action; Heather assumed Taras was handling the response as part of his usual bookkeeping work. Neither followed up with the other. By the time Heather called Treadstone Law, the 90-day period to file a Notice of Objection, the formal written challenge that pauses a reassessment and puts it in front of a CRA appeals officer, had already expired.

What the review found

Under the Income Tax Act and the Excise Tax Act, which governs HST, a taxpayer who disagrees with a reassessment generally has 90 days from the date on the notice to file a Notice of Objection. Once that window closes without an objection on file, the reassessment stands as issued, and CRA is free to treat the amount as a debt owed. For a corporation, that debt does not stay a corporate problem indefinitely. HST that a business collects on behalf of the government is held in trust, and directors of a corporation can be held personally liable for unremitted trust amounts if the corporation cannot pay. Heather, as the sole director, was exposed to that risk on the HST portion of the reassessment.

The first task was establishing exactly how much time had actually run. CRA calculates the 90-day period from the date printed on the Notice of Reassessment, not the date it is opened or read, so the team confirmed the mailing date and counted forward. The deadline had passed by a matter of weeks, which mattered a great deal: both statutes allow a taxpayer to apply for an extension of time to object, but only within one year after the original 90-day period ends. Miss that outer window too, and the options left are far more limited, expensive, and uncertain, with no guarantee that the merits of the reassessment itself would ever be reargued.

An extension request is not granted automatically. CRA, and the Tax Court of Canada if the request is later appealed there, will only grant one where the taxpayer can show a genuine intention to object that existed within the original 90 days, a reasonable explanation for the delay, and that the request itself was made as soon as circumstances allowed. A vague "we were busy" is not enough. The explanation has to be specific and documented, and the substance of the objection has to be ready to go, because CRA wants to see that granting the extension will lead to a real review, not simply more delay.

What we did

1. Confirmed the deadline had lapsed and how much runway remained. With the 90-day window closed but well inside the one-year outer limit for an extension request, there was still a viable path, but no reason to wait any longer to use it.
2. Documented the specific reason for the delay. The explanation centred on the breakdown in communication between the corporation's bookkeeping support and its director during a period when both were stretched thin, supported by dated correspondence showing the notice had been misfiled rather than deliberately ignored.
3. Prepared and filed the application for an extension of time to object together with the substantive Notice of Objection itself. Filing both at once, rather than waiting for the extension to be granted before drafting the objection, showed CRA a completed, genuine challenge rather than a placeholder.
4. Rebuilt the documentary record for the disputed input tax credits and subcontractor payments. This meant collecting contracts, invoices, proof of electronic payment, and correspondence with the subcontractors to show the expenses were legitimate, incurred for business purposes, and properly supported under the record-keeping requirements of the Excise Tax Act.
5. Corresponded directly with the CRA officer assigned to review the extension request, providing additional context on request and confirming the corporation's ongoing compliance with its filing obligations to reduce any concern that this was a pattern of neglect.
6. Once the extension was granted, pursued the objection through CRA's Appeals division, presenting the rebuilt documentation directly to the appeals officer and addressing the specific line items the auditor had flagged rather than arguing the reassessment in general terms.

The outcome

CRA granted the extension of time, accepting that the delay was a documented lapse rather than a deliberate decision to ignore the reassessment, and that a genuine objection had been ready within the relevant window. That alone did not resolve anything on its own, it simply reopened the door that had appeared to be closed.

The objection itself was allowed in full several months later. The appeals officer accepted that the subcontractor payments were properly documented business expenses and that the input tax credits had been correctly claimed, and the reassessment was vacated. The roughly $310,000 that had been sitting on the corporation's account, made up of about $215,000 in reassessed tax, about $65,000 in arrears interest, and about $30,000 in penalties, was reversed in full and never became a debt the corporation, or Heather personally as director, had to pay.

Because the extension was secured before CRA moved to collections, no collection letters were sent, no lien or garnishment was registered, and no separate director liability assessment was ever issued against Heather personally for the HST portion. The corporation's line of credit and its relationships with its bank and its subcontractors were untouched throughout, since none of them had reason to know a six-figure dispute was in progress. What could have become a forced sale of assets, a personal liability fight, or a strained relationship with lenders was instead resolved as a paperwork dispute, precisely because it was caught and addressed before the missed deadline turned into a missed opportunity altogether.

What you can learn from this