Sudbury Case Studies

6 worked Sudbury case studies — the position a client typically comes to us with, what we do, and what it is worth. Each is an illustrative example built on the rules that apply to Sudbury and its provincial tax regime, not a specific client's file.

Case Study 1 · Backlog brought current

7 Years Filed, $35,000 Removed From The Assessed Balance — Food Processing Plant, Sudbury

Client: A food processing plant  ·  Where: Sudbury, Ontario  ·  Engagement: 4 weeks, fixed fee

Years filed7
Assessed balance removed$35,000
CollectionsStopped

The situation — A food processing plant, Sudbury, Ontario

A food processing plant in Sudbury, Ontario had not filed for 7 years. The CRA had issued arbitrary assessments. The business was carrying instalments still calculated on a year the business had long outgrown. That came on top of a growing interest balance.

What we did for A food processing plant, Sudbury, Ontario

We started with the oldest year and worked forward so each year's closing balances fed the next. We rebuilt the sales ledger by customer location, applied the correct place-of-supply rate to each stream, and filed the adjusted HST returns. We filed the years in sequence rather than all at once.

The result — A food processing plant, Sudbury, Ontario

Every year is now filed and assessed on actual figures. The notional assessments were vacated and $35,000 of the estimated balance came off, with a payment arrangement covering the rest.

Case Study 2 · Objection and relief

$100,000 Of Penalties And Interest Cancelled On Relief — Bookkeeping and Payroll Bureau, Sudbury

Client: A bookkeeping and payroll bureau  ·  Where: Sudbury, Ontario  ·  Engagement: 6 weeks, fixed fee

Penalties and interest cancelled$100,000
Relief groundsAccepted
AssessmentAdjusted to filed position

The situation — A bookkeeping and payroll bureau, Sudbury, Ontario

An assessment of $100,000 landed at a bookkeeping and payroll bureau in Sudbury, Ontario following a desk review. It turned on a provincial payroll levy that had never been registered for or remitted. The auditor had not seen the records behind it.

What we did for A bookkeeping and payroll bureau, Sudbury, Ontario

We assessed and claimed Ontario Innovation Tax Credit alongside the federal return. We then set out the legislative basis for the position alongside the documents supporting it.

The result — A bookkeeping and payroll bureau, Sudbury, Ontario

$100,000 of penalties and interest was cancelled under the taxpayer relief provisions, and the underlying assessment was adjusted to match the filed position.

Case Study 3 · Records and systems rebuilt

Books Rebuilt From Source, $6,100 In Unclaimed Input Tax Found — Fintech Startup, Sudbury

Client: A fintech startup  ·  Where: Sudbury, Ontario  ·  Engagement: 9 weeks, fixed fee

Unclaimed tax found$6,100
Records rebuilt26 months
ProcessDocumented

The situation — A fintech startup, Sudbury, Ontario

A fintech startup in Sudbury, Ontario could not answer basic questions about its own numbers. 13% HST charged on every sale regardless of where the customer was located sat between the bank statements and the ledger.

What we did for A fintech startup, Sudbury, Ontario

We recalculated the corporate tax at the 12.2% combined small business rate and rebased the instalments on the current year. We then documented the process so the work does not depend on any one person remembering how it was done.

The result — A fintech startup, Sudbury, Ontario

Records rebuilt and reconciled, $6,100 recovered in input tax credits that the old file could not support, and a documented monthly process now in place.

Case Study 4 · Planning that cut the bill

Remuneration Review Saved $42,000 Across Corporate And Personal Returns — Plastics Moulder, Sudbury

Client: A plastics moulder  ·  Where: Sudbury, Ontario  ·  Engagement: 11 weeks, fixed fee

Combined saving$42,000
ScopeCorporate + personal
Future yearsNo rework needed

The situation — A plastics moulder, Sudbury, Ontario

Nothing was wrong at a plastics moulder in Sudbury, Ontario. The filings were on time and accurate. What they were not was planned. Sector-specific exposure the previous accountant had not seen before had never been reviewed.

What we did for A plastics moulder, Sudbury, Ontario

We assessed and claimed Ontario Made Manufacturing Investment Tax Credit alongside the federal return. We ran the numbers across both the corporate and personal returns, so the saving was real rather than deferred into someone else's hands.

The result — A plastics moulder, Sudbury, Ontario

$42,000 came off the combined corporate and personal tax bill, and the structure holds for future years without further work.

Case Study 5 · CRA review defended

Audit Defence Closed In 4 Weeks, $28,500 Cleared — Leasing Company, Sudbury

Client: A leasing company  ·  Where: Sudbury, Ontario  ·  Engagement: 4 weeks, fixed fee

Proposed tax cleared$28,500
Review duration4 weeks
OutcomeNo change

The situation — A leasing company, Sudbury, Ontario

A leasing company in Sudbury, Ontario was selected for review. Out-of-province sales billed at the ON rate instead of the customer’s had shown up in the CRA's automated matching. The proposed adjustment on its ON tax and accounting file came to $28,500.

What we did for A leasing company, Sudbury, Ontario

We registered the provincial payroll account, caught up the outstanding remittances, and applied for relief on the penalty. Every figure in the response traced to a source record the auditor could verify without asking a second question.

The result — A leasing company, Sudbury, Ontario

The review closed with no change. $28,500 of proposed tax came off the table, and the documentation now in place makes the next review a short one.

Case Study 6 · Sale and succession

$815,000 Sheltered By The Lifetime Capital Gains Exemption — Digital Product Agency, Sudbury

Client: A digital product agency  ·  Where: Sudbury, Ontario  ·  Engagement: 10 weeks, fixed fee

Gain sheltered$815,000
ClosingOn schedule
Share qualificationMet

The situation — A digital product agency, Sudbury, Ontario

A digital product agency in Sudbury, Ontario had an offer on the table and 33 months to close. The shares did not qualify for the capital gains exemption. Retained cash well above what the business needed to operate was part of the reason.

What we did for A digital product agency, Sudbury, Ontario

We purified the corporation so the shares met the qualifying tests. We rebuilt the sales ledger by customer location, applied the correct place-of-supply rate to each stream, and filed the adjusted HST returns. All of it was done well ahead of the closing date.

The result — A digital product agency, Sudbury, Ontario

The sale closed on schedule with $815,000 sheltered by the lifetime capital gains exemption across the shareholders.

Reviewed by Udit Gupta, Founder and Tax Accountant for the 2025 tax year. These case studies are illustrative worked examples composed from the CRA rules that apply to this type of work, not specific client files; figures are representative and outcomes depend on your own facts.

Sources. CRA — Businesses · Income Tax Act (Justice Laws Website)

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