Partnership Tax Filing Case Studies

6 worked Partnership Tax Filing 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 partnership tax filing work, not a specific client's file.

Case Study 1 · CRA review defended

Audit Defence Closed In 6 Weeks, $139,000 Cleared — Family-Staffed Proprietorship, Mississauga

Client: A proprietor whose spouse works in the business  ·  Where: Mississauga, Ontario  ·  Engagement: 6 weeks, fixed fee

Proposed tax cleared$139,000
Review duration6 weeks
OutcomeNo change

The situation — A proprietor whose spouse works in the business, Mississauga, Ontario

A proprietor whose spouse works in the business in Mississauga, Ontario was selected for review. Partner draws that had pushed one partner’s adjusted cost base negative had shown up in the CRA's automated matching. The proposed adjustment on partnership tax filing came to $139,000.

What we did for A proprietor whose spouse works in the business, Mississauga, Ontario

We restructured the draw policy so no partner’s adjusted cost base went negative again, and reported the deemed gain correctly for the year it arose. Every figure in the response traced to a source record the auditor could verify without asking a second question.

The result — A proprietor whose spouse works in the business, Mississauga, Ontario

The review closed with no change. $139,000 of proposed tax came off the table, and the documentation now in place makes the next review a short one.

Case Study 2 · Scaling without breaking

Growth Handled Without A Missed Filing, $60,000 Freed — Freelance Developer, Guelph

Client: A freelance developer  ·  Where: Guelph, Ontario  ·  Engagement: 7 weeks, fixed fee

Cash freed$60,000
Compliance failuresNone
ReportingMonthly

The situation — A freelance developer, Guelph, Ontario

A freelance developer in Guelph, Ontario was opening in a second province. That meant different filing obligations and a different payroll regime. A proprietor planning around a September year-end that the rules did not permit already sat in the file.

What we did for A freelance developer, Guelph, Ontario

We filed the outstanding T5013 returns with full partner allocations and requested penalty relief on the basis of the first-time nature of the failure. 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 — A freelance developer, Guelph, Ontario

Growth was absorbed without a compliance failure. $60,000 of cash was released, and the monthly reporting now flags a problem while it is still small.

Case Study 3 · Planning that cut the bill

$25,000 Saved By Correcting What Prior Filings Had Missed — Spousal Retail Partnership, Victoria

Client: A husband-and-wife retail partnership  ·  Where: Victoria, British Columbia  ·  Engagement: 6 weeks, fixed fee

Saving identified$25,000
RecurringYes
Positions documentedAll

The situation — A husband-and-wife retail partnership, Victoria, British Columbia

A husband-and-wife retail partnership in Victoria, British Columbia asked for a second opinion on partnership tax filing. That followed three years of rising tax. The review found business income reported entirely on one spouse’s return despite shared operations.

What we did for A husband-and-wife retail partnership, Victoria, British Columbia

We built the comparison first: current structure against two alternatives. Then we split the shared overhead on a documented basis, so each partner’s reported share carried only the expenses that belonged to it.

The result — A husband-and-wife retail partnership, Victoria, British Columbia

First-year saving of $25,000, with the same benefit recurring. Every position taken is documented and supported in the file.

Case Study 4 · Cash and remittance control

$155,000 Of Working Capital Freed From The Tax Cycle — Food-Truck Proprietorship, Burnaby

Client: A food-truck sole proprietorship  ·  Where: Burnaby, British Columbia  ·  Engagement: 3 weeks, fixed fee

Working capital freed$155,000
On-time remittancesEvery period since
Forecast horizon13 weeks

The situation — A food-truck sole proprietorship, Burnaby, British Columbia

A food-truck sole proprietorship in Burnaby, British Columbia was profitable on paper and short of cash every month. A partnership that crossed the T5013 threshold two years before anyone noticed explained most of the gap.

What we did for A food-truck sole proprietorship, Burnaby, British Columbia

We drafted the allocation, admission and withdrawal terms into a written agreement before the next partner was admitted. We also built a thirteen-week cash view so tax payments stopped competing with payroll for the same dollars.

The result — A food-truck sole proprietorship, Burnaby, British Columbia

$155,000 was released back into working capital. Remittances have been on time every period since, and the forecast shows the tax outflow before it lands.

Case Study 5 · Records and systems rebuilt

18 Months Reconciled And $10,000 Of Input Tax Recovered — Three-Partner Medical Clinic, Hamilton

Client: A three-partner medical clinic  ·  Where: Hamilton, Ontario  ·  Engagement: 7 weeks, fixed fee

Months reconciled18
Input tax recovered$10,000
Close time4 days

The situation — A three-partner medical clinic, Hamilton, Ontario

Nothing reconciled at a three-partner medical clinic in Hamilton, Ontario. Every filing started with 18 months of cleanup. The file was carrying a partner taxed on an allocation in a year they had drawn nothing at all.

What we did for A three-partner medical clinic, Hamilton, Ontario

We rebuilt from source rather than correcting on top of the existing file. We kept the proprietorship on a December 31 fiscal period and moved the year-end question into the incorporation plan where it could actually be answered. Then we set the routine that keeps it clean.

The result — A three-partner medical clinic, Hamilton, Ontario

18 months reconciled to the bank. The close now takes 4 days, and $10,000 of previously unclaimable input tax was recovered in the process.

Case Study 6 · Deadline rescue

9-Week Turnaround Beat The Deadline And Saved $79,000 — Retiring Partner, Vancouver

Client: A retiring partner leaving a professional partnership  ·  Where: Vancouver, British Columbia  ·  Engagement: 9 weeks, fixed fee

Late-filing penalty avoided$79,000
Filed with12 days to spare
Next yearPapers ready

The situation — A retiring partner leaving a professional partnership, Vancouver, British Columbia

A retiring partner leaving a professional partnership in Vancouver, British Columbia was weeks away from the deadline for partnership tax filing. Behind that sat a profit split applied in practice that the written agreement did not support. The exposure if the date slipped was around $79,000.

What we did for A retiring partner leaving a professional partnership, Vancouver, British Columbia

We reconciled each partner’s allocation, capital account and drawings, so what was reported for tax matched the agreement instead of the cash taken. The filing went in complete rather than provisional, so there was no amended return to follow.

The result — A retiring partner leaving a professional partnership, Vancouver, British Columbia

Filed with 12 days to spare. $79,000 in late-filing penalties avoided, and the working papers are ready for the following year.

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 — Sole proprietorships and partnerships · Income Tax Act (Justice Laws Website)

← Back to Partnership Tax Filing  ·  All case studies

Case Studies from Other Fixed-Fee Plans

Free 15 Min Consultation for Businesses

Ready to get started with Partnership Tax Filing tax support?

Talk to a professional tax accountant about your situation. No obligation, and you only pay once the work is complete and you have approved it.

  • Tax accountant led team
  • Fixed fees, no hourly billing
  • Pay only after you approve

+1 (416) 619-0068 381 Front St W, Toronto, ON M5V 3R8

Our Partners Are Alumni of the World's Top Accounting and Tax Institutions

Chartered Professional Accountants Canada AICPA — American Institute of Certified Public Accountants Institute of Chartered Accountants of India Malaysian Institute of Accountants