Canadian Acquisition Tax Due Diligence: Compare Scope, Evidence and Reports

For a Canadian acquisition, commission tax due diligence from a Canadian transaction-tax team that accepts the actual entities, provinces and cross-border issues in the deal. BDO Canada and MNP both publish transaction-tax services including due diligence. Their service descriptions support a shortlist, not a ranking of savings, price or outcomes.[1][2]

Compare two Canadian transaction-tax teams

• BDO Canada — Published scope: Buy-side and sell-side tax due diligence, transaction tax planning and modelling, cross-border support and post-acquisition work.[1]; Proposal questions: Which Canadian taxes and entities are covered? Who coordinates foreign-country work? Are modelling, purchase-agreement comments and integration separate deliverables?
• MNP — Published scope: Transaction-tax due diligence, deal structuring, post-acquisition reorganisation and integration, and tax-authority work.[2]; Proposal questions: Who leads the tax diligence? What specialist work is required? Which findings reach the deal team before the decision deadline, and what continuing work is separately charged?

Neither page establishes a comparable fee schedule or a commitment for this transaction. Ask both teams for the same scope, timetable and engagement terms. Marketing language about minimising liabilities does not quantify the outcome of your deal.[1][2]

Define the deal before the checklist

Give the team a diagram of the proposed buyer, target and subsidiaries, the business activities, provinces and countries involved, and whether an asset or share acquisition is contemplated. Ask the adviser to explain how the proposed structure changes the questions to investigate. Do not treat a foreign-country tax checklist as a Canadian legal standard.

Set a reporting threshold and the decisions you need to make. For example, distinguish issues that could change the price, issues needing a purchase-agreement response, matters requiring more documents and post-closing tasks. This is an illustrative reporting framework, not a fixed legal checklist.

Request records with a clear purpose

CRA’s record-keeping guidance explains that organised records support review of income-tax and GST/HST returns.[3] A diligence request should identify the tax, entity and period each document serves. Ask the adviser to determine the appropriate review periods, including unresolved assessments, audits and earlier events that could affect the transaction. Do not use an arbitrary three-to-five-year window as a universal Canadian requirement.

• Reconcile tax returns, assessments and tax-account information with the financial records made available.
• Identify outstanding correspondence, audits, objections, payment arrangements and items still awaiting evidence.
• Ask which payroll, indirect-tax, provincial, intercompany or non-resident matters are relevant to this business.
• Separate documents received from explanations supplied by management and conclusions reached by the adviser.
• Track missing items with an owner, request date, deadline and statement of the resulting limitation.

These are questions for the proposed engagement. They do not imply that every provider includes every tax or that a review removes all undiscovered exposure.

Specify the report you can use

Require each finding to identify the entity, issue, supporting evidence, assumptions, uncertainty and recommended next step. Where an exposure is estimated, ask for the calculation, range and reasons a precise number cannot be established. Distinguish an untested management explanation from an adviser-supported conclusion.

Set dates for an initial issues call, draft findings, management clarification and the final report. Name the buyer’s decision maker and the person coordinating legal and financial diligence. Require escalation of a material issue as it emerges rather than waiting for the final document.

Keep adviser responsibility separate from document software

A data room can store files and track requests, but access to software does not provide a Canadian tax opinion. If a platform is used, state who performs the tax analysis, who reviews it and which professional engagement governs that work. Ask the adviser how access, personal information, retention and permitted sharing will be controlled.

Do not reuse confidential third-party checklists as public source material. Provide the adviser with documents the buyer is authorised to share and obtain transaction-specific requests.

Compare the full engagement cost and exit

Request separate prices for the core review, foreign or provincial specialists, structuring advice, negotiation support, tax-authority work and post-closing integration. Agree variation approval, expenses, payment milestones and cancellation terms. Confirm report-use restrictions, intended recipients and whether lenders or other parties can rely on it.

Select the team that accepts the relevant Canadian scope, explains its evidence limitations and commits to the decision timetable in writing. Tax due diligence informs a transaction; it does not guarantee a tax saving, an authority’s agreement or the absence of future liabilities.

References

1. Transaction Tax — BDO Canada (bdo.ca)
2. Transaction Tax — MNP (mnp.ca)
3. What are records and why keep them — Canada Revenue Agency (canada.ca)