6 worked Peterborough 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 Peterborough and its provincial tax regime, not a specific client's file.
Case Study 1 · CRA review defended
$54,000 Proposed Adjustment Withdrawn In Full — Translation Services Company, Peterborough
Client: A translation services company · Where: Peterborough, Ontario · Engagement: 7 weeks, fixed fee
Adjustment withdrawn$54,000
File closed in7 weeks
Penalties assessedNone
The situation — A translation services company, Peterborough, Ontario
A translation services company in Peterborough, Ontario received a proposal letter opening a review of its ON tax and accounting file. The CRA had identified a provincial payroll levy that had never been registered for or remitted. It proposed an adjustment of $54,000, with 30 days to respond.
What we did for A translation services company, Peterborough, Ontario
We treated the response as an evidence exercise rather than an argument. We assessed and claimed Ontario Innovation Tax Credit alongside the federal return. We then indexed every supporting document against the specific line the auditor had questioned.
The result — A translation services company, Peterborough, Ontario
The proposed adjustment was withdrawn in full — all $54,000 of it. The file closed in 7 weeks with no change to the assessed amounts and no penalty.
Case Study 2 · Records and systems rebuilt
Month-End Close Cut From 10 Weeks To 10 Days — Data Analytics Consultancy, Peterborough
Client: A data analytics consultancy · Where: Peterborough, Ontario · Engagement: 6 weeks, fixed fee
Close time before10 weeks
Close time after10 days
Year-endReview, not rebuild
The situation — A data analytics consultancy, Peterborough, Ontario
The accounting file at a data analytics consultancy in Peterborough, Ontario had a weak foundation. It was built on 13% HST charged on every sale regardless of where the customer was located. The year-end had taken 10 weeks each of the last three years.
What we did for A data analytics consultancy, Peterborough, Ontario
We recalculated the corporate tax at the 12.2% combined small business rate and rebased the instalments on the current year. We also moved the reconciliations into the monthly cycle, so the year-end stopped being a rebuild.
The result — A data analytics consultancy, Peterborough, Ontario
The file reconciles. Month-end closes in 10 days instead of 10 weeks, and the year-end is a review rather than a reconstruction.
Case Study 3 · Backlog brought current
3 Years Filed, $91,000 Removed From The Assessed Balance — Mortgage Brokerage, Peterborough
The situation — A mortgage brokerage, Peterborough, Ontario
A mortgage brokerage in Peterborough, Ontario had not filed for 3 years. The CRA had issued arbitrary assessments. The business was carrying sector-specific exposure the previous accountant had not seen before. That came on top of a growing interest balance.
What we did for A mortgage brokerage, Peterborough, Ontario
We started with the oldest year and worked forward so each year's closing balances fed the next. We assessed and claimed Ontario Made Manufacturing Investment Tax Credit alongside the federal return. We filed the years in sequence rather than all at once.
The result — A mortgage brokerage, Peterborough, Ontario
Every year is now filed and assessed on actual figures. The notional assessments were vacated and $91,000 of the estimated balance came off, with a payment arrangement covering the rest.
Case Study 4 · Scaling without breaking
Growth Handled Without A Missed Filing, $160,000 Freed — Executive Coaching Practice, Peterborough
Client: An executive coaching practice · Where: Peterborough, Ontario · Engagement: 6 weeks, fixed fee
Cash freed$160,000
Compliance failuresNone
ReportingMonthly
The situation — An executive coaching practice, Peterborough, Ontario
An executive coaching practice in Peterborough, Ontario was opening in a second province. That meant different filing obligations and a different payroll regime. Out-of-province sales billed at the ON rate instead of the customer’s already sat in the file.
What we did for An executive coaching practice, Peterborough, Ontario
We registered the provincial payroll account, caught up the outstanding remittances, and applied for relief on the penalty. We then put monthly reporting in place. That let the owner see the cash effect of growth while there was still time to act on it.
The result — An executive coaching practice, Peterborough, Ontario
Growth was absorbed without a compliance failure. $160,000 of cash was released, and the monthly reporting now flags a problem while it is still small.
Case Study 5 · Deadline rescue
9-Week Turnaround Beat The Deadline And Saved $60,000 — Cybersecurity Firm, Peterborough
The situation — A cybersecurity firm, Peterborough, Ontario
A cybersecurity firm in Peterborough, Ontario was weeks away from the deadline for its ON tax and accounting file. Behind that sat instalments still calculated on a year the business had long outgrown. The exposure if the date slipped was around $60,000.
What we did for A cybersecurity firm, Peterborough, Ontario
We rebuilt the sales ledger by customer location, applied the correct place-of-supply rate to each stream, and filed the adjusted HST returns. The filing went in complete rather than provisional, so there was no amended return to follow.
The result — A cybersecurity firm, Peterborough, Ontario
Filed with 12 days to spare. $60,000 in late-filing penalties avoided, and the working papers are ready for the following year.
Case Study 6 · Sale and succession
Intergenerational Transfer Completed With $890,000 Deferred — Investment Advisory Firm, Peterborough
The situation — An investment advisory firm, Peterborough, Ontario
A generational transfer at an investment advisory firm in Peterborough, Ontario had been discussed for years without a plan. Retained cash well above what the business needed to operate meant the transfer as contemplated would have been fully taxable.
What we did for An investment advisory firm, Peterborough, Ontario
We assessed and claimed Ontario Innovation Tax Credit alongside the federal return. We sequenced the steps so each one was complete and documented before the next depended on it.
The result — An investment advisory firm, Peterborough, Ontario
$890,000 of tax was deferred through the transfer, and the successor generation took over a corporation whose records stood up to review.
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.
