6 worked HST Returns 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 hst returns work, not a specific client's file.
Case Study 1 · Planning that cut the bill
Remuneration Review Saved $70,000 Across Corporate And Personal Returns — Late GST/HST Registrant, Kitchener
Client: A seller who crossed the registration threshold before registering · Where: Kitchener, Ontario · Engagement: 3 weeks, fixed fee
Combined saving$70,000
ScopeCorporate + personal
Future yearsNo rework needed
The situation — A seller who crossed the registration threshold before registering, Kitchener, Ontario
Nothing was wrong at a seller who crossed the registration threshold before registering in Kitchener, Ontario — the filings were on time and accurate. What they were not was planned. Management fees between two related registrants carrying tax that only ever went out and came back had never been reviewed.
What we did for A seller who crossed the registration threshold before registering, Kitchener, Ontario
We self-assessed the tax on the real property acquisition in the correct reporting period and claimed the offsetting input tax credit in the same return, and 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 seller who crossed the registration threshold before registering, Kitchener, Ontario
$70,000 came off the combined corporate and personal tax bill, and the structure holds for future years without further work.
Case Study 2 · Backlog brought current
$65,000 Of Arbitrary Assessments Vacated After 6 Years — Mixed-Supply Practice, Brampton
Client: A professional practice with exempt and taxable supplies · Where: Brampton, Ontario · Engagement: 9 weeks, fixed fee
Arbitrary tax vacated$65,000
Years brought current6
Account statusCurrent
The situation — A professional practice with exempt and taxable supplies, Brampton, Ontario
6 years of unfiled returns had turned into notional assessments at a professional practice with exempt and taxable supplies in Brampton, Ontario, with HST charged at the home-province rate on sales into four different provinces underneath. Collections had already started.
What we did for A professional practice with exempt and taxable supplies, Brampton, Ontario
We set a defensible input tax credit allocation between taxable and exempt supplies and documented the method for future filings, then filed every outstanding year in chronological order so the CRA could vacate the notional assessments cleanly.
The result — A professional practice with exempt and taxable supplies, Brampton, Ontario
All 6 years were accepted as filed. $65,000 of arbitrarily assessed tax was vacated, collections action stopped, and the account is current for the first time in 6 years.
Case Study 3 · Cash and remittance control
Instalments Rebased, $109,000 Of Cash Returned To The Business — Freight Brokerage, London
The situation — A freight brokerage, London, Ontario
A freight brokerage in London, Ontario was paying instalments calculated on a prior year that no longer reflected the business. Export sales zero-rated with no shipping documentation behind them was tying up $109,000 of cash.
What we did for A freight brokerage, London, Ontario
We rebased the instalments on the current-year estimate rather than the prior-year default, and tested the quick method against the account’s actual input tax credit history and stayed on the regular method where the credits were worth more.
The result — A freight brokerage, London, Ontario
$109,000 of cash stayed in the business, the penalty cycle ended, and the instalment position is reviewed each quarter against actual results.
Case Study 4 · Sale and succession
Intergenerational Transfer Completed With $900,000 Deferred — Used-Equipment Dealer, Halifax
Client: A used-equipment dealer · Where: Halifax, Nova Scotia · Engagement: 11 weeks, fixed fee
Tax deferred$900,000
TransferCompleted
RecordsReview-ready
The situation — A used-equipment dealer, Halifax, Nova Scotia
A generational transfer at a used-equipment dealer in Halifax, Nova Scotia had been discussed for years without a plan. Passive assets sitting inside the operating company, disqualifying the shares meant the transfer as contemplated would have been fully taxable.
What we did for A used-equipment dealer, Halifax, Nova Scotia
We filed the section 156 election for the related registrants, so supplies between them stopped carrying tax that served no purpose but cash-flow drag, sequencing the steps so each one was complete and documented before the next depended on it.
The result — A used-equipment dealer, Halifax, Nova Scotia
$900,000 of tax was deferred through the transfer, and the successor generation took over a corporation whose records stood up to review.
Case Study 5 · Records and systems rebuilt
29 Months Reconciled And $18,500 Of Input Tax Recovered — Wholesale Food Distributor, Hamilton
The situation — A wholesale food distributor, Hamilton, Ontario
A wholesale food distributor in Hamilton, Ontario was carrying a registration threshold crossed nine months before anyone registered. Nothing reconciled, and every filing started with 29 months of cleanup.
What we did for A wholesale food distributor, Hamilton, Ontario
We rebuilt from source rather than correcting on top of the existing file. We backdated the registration to the day the threshold was crossed, remitted the tax owing, and applied for relief on the penalty portion, then set the routine that keeps it clean.
The result — A wholesale food distributor, Hamilton, Ontario
29 months reconciled to the bank. The close now takes 4 days, and $18,500 of previously unclaimable input tax was recovered in the process.
Case Study 6 · Missed incentive claimed
$56,000 Credit Claim Filed And Accepted Without Adjustment — Interprovincial Construction Supplier, Ottawa
Client: A construction supplier selling into three provinces · Where: Ottawa, Ontario · Engagement: 7 weeks, fixed fee
Claim value$56,000
AcceptedWithout adjustment
RepeatableAnnually
The situation — A construction supplier selling into three provinces, Ottawa, Ontario
A construction supplier selling into three provinces in Ottawa, Ontario assumed the credits did not apply to a business its size. A sales tax account filed annually while the CRA had moved the business to quarterly meant they had applied all along.
What we did for A construction supplier selling into three provinces, Ottawa, Ontario
We identified the qualifying activity, built the documentation to support it, and brought the nil and missing periods current so the account was clean before the refund claim was filed.
The result — A construction supplier selling into three provinces, Ottawa, Ontario
$56,000 recovered. Because the eligibility analysis is on file, the same claim can be repeated each year with a fraction of the effort.
Reviewed for the 2025 tax year by Udit Gupta, Founder and Tax Accountant. 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.
