GOING PUBLICTSX-V · CSE · TSX — audit-readiness guide
Going public in Canada? Here's what the audit looks like.
A field guide for founders, CFOs, and audit committees preparing to list on the TSX-V, the CSE, or the TSX. What the auditor actually does, what NI 41-101 / NI 51-102 / NI 52-110 require, what timelines look like, and what fees you should expect. No promises — just the standards and the math.
WHY THIS IS CRITICAL
Audit issues are the #1 preventable cause of IPO timing slips.
KPMG's IPO Material Weakness Study found 58% of 2022 IPOs disclosed at least one material weakness in their initial S-1, S-4, or F-1 filing — every one of them a fixable, pre-fieldwork issue. Macro conditions move the market; pre-audit readiness is the one variable an issuer controls.
Shareholders
funded a timeline. Missing it costs trust, capital, and often the offer price itself.
The market
won't wait. An IPO window can close in two weeks of volatility.
Your auditor
can't fix what isn't there. Pre-fieldwork readiness is the only lever you control.
Run the math. A four- or low-five-figure Auditus.ai engagement against an eight- or nine-figure raise that depends on hitting the window — the decision isn't close.
Source: KPMG 2023 IPO Material Weakness Study; PwC reports a similar ~59% figure for the same year. Actual outcomes vary by engagement scope.
Three exchanges, three rule-sets.
The TSX-V, the CSE, and the TSX all use NI 41-101 for the prospectus, but the audit-committee, certification, and continuous-disclosure regimes diverge meaningfully between venture and non-venture issuers.
| Attribute | TSX-V | CSE | TSX |
|---|
| Minimum audited financial statements | Two years audited annual financials (three for issuers with a longer operating history). IFRS, audited under Canadian Auditing Standards. | Two years audited annual financials. Comparable scope to TSX-V; CSE Form 2A drives the prospectus-equivalent disclosure. | Three years audited annual financials, plus reviewed interims. Greater depth of segmented and comparative disclosure expected. |
| Prospectus form | NI 41-101 long-form prospectus (or short-form under NI 44-101 once qualified). Form 41-101F1 in most cases. | NI 41-101 long-form prospectus (CSE listing typically by Form 2A listing statement plus a prospectus if raising capital). | NI 41-101 long-form prospectus for IPOs; short-form under NI 44-101 once eligible. |
| Continuous disclosure filing deadlines | Venture issuer: annual filings within 120 days of fiscal year-end, interims within 60 days (NI 51-102). | CSE issuers are venture issuers: annual within 120 days, interim within 60 days (NI 51-102). | Non-venture issuer: annual within 90 days, interim within 45 days (NI 51-102). |
| Audit committee composition | Minimum three members; majority must not be executive officers, employees, or control persons (NI 52-110, Part 6 venture exemption applies). | Venture-issuer rules under NI 52-110 Part 6 apply — three members, majority independent of management. | Stricter regime: three members, all financially literate, all independent (NI 52-110, Parts 1–5). Limited transitional exemptions only. |
| MD&A requirements | Annual and interim MD&A required under NI 51-102 Part 5; venture-issuer scope (no executive-compensation disclosure under Form 51-102F6V allowed in lieu of F6). | Same MD&A regime as TSX-V (venture issuer); CSE supplements with a quarterly listing statement update via Form 5. | Full MD&A under NI 51-102 Part 5, plus full Form 51-102F6 executive compensation, plus CEO/CFO certifications under NI 52-109 (no venture exemptions). |
| CEO / CFO certifications (NI 52-109) | Venture-issuer basic certificates (Form 52-109FV1 / FV2) — no ICFR or DC&P design or operating-effectiveness representations required. | Same venture-issuer basic certificates as TSX-V (Form 52-109FV1 / FV2). | Full certificates (Form 52-109F1 / F2): CEO and CFO certify the design and operating effectiveness of ICFR and DC&P. |
Sources: NI 41-101 (prospectus), NI 51-102 (continuous disclosure), NI 52-109 (certifications), NI 52-110 (audit committees). Confirm the version in force with the CSA before filing.
What the auditor actually does.
Six procedures that distinguish a going-public audit from a routine private-company audit. Each is cited to the standard that drives it.
CAS 510
Opening balances — and prior-auditor working papers
For a first-year audit, the incoming auditor must obtain sufficient appropriate evidence over opening balances under CAS 510. That ordinarily means access to the prior auditor's working papers — your current accounting firm has to consent to release them in a usable form, on a defined timeline. If the company has never been audited (compilation or review only), the procedures expand: substantive testing of opening positions account-by-account, more confirmation work, and more time.
IFRS 1
First-time adoption of IFRS
Many pre-IPO Canadian companies have kept books under ASPE. The transition to IFRS for a prospectus is governed by IFRS 1, which requires a date-of-transition opening IFRS balance sheet, full reconciliations from previous GAAP to IFRS for both the comparative period and the latest annual period, and explicit disclosure of every IFRS 1 election taken (deemed cost, business combinations, leases). The auditor tests each reconciliation line and each election — this is one of the most reliably underestimated workstreams in a listing.
CAS 700
Audit report — adapted for inclusion in a prospectus
Under CAS 700 (with NI 41-101 overlays), the auditor issues an audit report covering each annual period included in the prospectus, plus a consent letter authorizing inclusion of that report by reference. Key audit matters (KAMs, under CAS 701) are required for TSX-listed issuers; venture issuers may elect KAMs but are not required. The wording, the dating, and the consent are all reviewed by the underwriters' counsel and the regulator.
CAS 720
MD&A and prospectus other-information read
CAS 720 requires the auditor to read the MD&A and the rest of the prospectus and consider whether material inconsistencies exist between that text and the audited financial statements (or the auditor's knowledge of the entity). Inconsistencies must be reconciled before the prospectus is filed — typically the longest-tail review item in the final week before pricing.
CAS 240
Fraud risk — heightened first-year scrutiny on revenue
CAS 240 presumes a fraud risk in revenue recognition; for a going-public engagement, that presumption combines with the inherent first-year information gap to produce expanded cut-off testing, customer-confirmation work, and management-override journal-entry testing. Pre-IPO revenue often involves non-standard arrangements (deferred consideration, variable consideration, related-party tails) that the auditor will work through carefully.
CAS 315
Risk assessment under the revised standard
CAS 315 (Revised) requires a detailed understanding of the system of internal control and the IT environment, with explicit risk-of-material-misstatement assessment at the assertion level. CPAB has flagged this standard in its annual inspection reports — expect documented walkthroughs, control-design evaluations, and explicit linkages between identified risks and planned responses.
The 6 / 3 / 1 month timeline.
Three checkpoints before the listing date. Compress this and you compress the auditor's planning — which compresses nothing else.
6+ months out
Engage the auditor and lock the path.
- ▸Select and engage an audit firm. For a TSX or material TSX-V listing, engage a CPAB-registered firm; verify their public-company experience and their KAM-disclosure track record.
- ▸Confirm IFRS conversion scope under IFRS 1: pick the transition date, document each IFRS 1 election, and start running parallel IFRS books if not already.
- ▸Initiate prior-auditor working-paper access (CAS 510). The handoff letter and the access window are negotiated now, not at the end.
- ▸Map the financial-statement perimeter: which subsidiaries are in scope, which require statutory audits in their jurisdiction, which intercompany flows need elimination.
- ▸Begin board and audit-committee construction. Even a venture-issuer audit committee needs three members with the right independence profile (NI 52-110 Part 6) before the listing.
3 months out
Lock controls, lock data, draft the prospectus.
- ▸Finalize ICFR walkthroughs and design documentation for the in-scope cycles (revenue, cash, equity, related parties). For a TSX listing, this is the foundation for the CEO/CFO certifications under NI 52-109.
- ▸Complete the IFRS conversion: opening balance sheet, comparatives, and full IFRS 1 disclosure note (every election listed, every reconciling line tied out).
- ▸Begin auditor fieldwork on the historical periods. Confirmations go out now (banks, customers, legal counsel, related parties).
- ▸First full prospectus draft circulated to underwriters' counsel. MD&A drafted in parallel so the CAS 720 read can start as soon as the financials lock.
1 month out
Reconcile every account, finalize, file.
- ▸Every balance-sheet account reconciled and signed off by the controller. Tie-outs between the trial balance, the audit file, the MD&A figures, and the prospectus body must match to the dollar.
- ▸Auditor completes substantive testing and KAM identification (if applicable). Subsequent-events review extends to the date of the auditor's report and is re-extended at consent.
- ▸Comfort-letter procedures: the underwriters request agreed-upon procedures on interim figures, KPIs, and prospectus tables that aren't part of the audited financial statements (CAS 920 / CSAE 3000 territory depending on scope).
- ▸Audit-committee meeting to approve the financial statements and the prospectus. The auditor's communication under CAS 260 lands here.
- ▸Final consent dated and prospectus filed. Subsequent-events procedures may be re-performed for any update between audit-report date and prospectus closing.
Fee expectations, honestly.
Typical ranges by exchange tier. These are not quotes — they are the bands we see most often. Your actual fee depends on entity complexity, sector, the state of your records, and your choice of auditor.
TSX-V juniors (early-stage, single-entity)
$50,000 – $120,000 CAD (first-year audit)
Typical range for a mining or tech junior with a clean single legal entity and limited revenue. First-year work runs at a premium; steady-state in subsequent years is usually 20–40% lower.
TSX-V mid-cap or multi-entity
$150,000 – $300,000 CAD
Multi-subsidiary, foreign-currency translation, more complex revenue model, or material acquisitions in the comparative period push fees into this band.
TSX non-venture issuer
$250,000 – $1,000,000+ CAD
Driven by full NI 52-109 ICFR scope, international operations, segment reporting, complex financial instruments, and KAM workload. The upper end applies to large-cap issuers with global subsidiaries.
Important — First-year audit fees typically run 20–40% above the eventual steady-state due to CAS 510 opening-balance procedures, IFRS 1 reconciliation testing, and the upfront risk-assessment and walkthrough work under CAS 315. Actual fees depend on entity complexity, sector, the quality of the existing accounting records, and auditor selection. These figures are typical ranges only — not quotes or commitments.
What goes wrong, most often.
Seven failure modes that drive most pre-filing rework. Each is preventable with disciplined preparation.
01
Incomplete prior-period reconciliations
Bank, AR, AP, intercompany, and equity reconciliations that don't tie to the trial balance at the opening date force CAS 510 procedures to expand — and burn the auditor's planning timeline.
02
Missing IFRS 1 elections documentation
Every IFRS 1 election (deemed cost for PP&E, business-combinations carve-out, lease transition shortcuts, share-based payments grandfathering) must be documented at the date of transition with a memo and the supporting calculations. Missing memos drive rework.
03
Late audit-committee composition
Independent directors with the right financial literacy take months to recruit. Confirming the audit-committee composition in the final weeks before filing leaves no room for a replacement if one candidate doesn't clear independence checks.
04
MD&A inconsistencies with audited financials
Numbers, percentages, segment splits, and non-GAAP measures in the MD&A must reconcile to the audited financial statements. CAS 720 inconsistencies are the single most common pre-filing block.
05
No ICFR walkthroughs documented
Even for a venture issuer that does not need full NI 52-109 ICFR representations, the auditor still needs CAS 315 walkthrough evidence over the in-scope control activities. Improvised verbal walkthroughs at fieldwork are a flag.
06
Foreign-subsidiary reporting gaps
Foreign subsidiaries often produce statutory financials under local GAAP and on a local calendar. Bridging to the parent's IFRS reporting period requires reconciliation packages, FX translation working papers, and (often) local-component-auditor coordination — none of which happens quickly.
07
Related-party transactions not isolated
Pre-listing, founders and management routinely transact with the company (loans, IP transfers, services). Each transaction needs to be identified, measured at the right value, disclosed under IAS 24, and tested. Late-stage discovery of an unisolated related-party stream is one of the most expensive findings.
Frequently asked questions.
Targeted at the questions CFOs and founders ask in the months before a listing decision.
Do I need audited financial statements to list on the TSX-V?
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Yes. The TSX-V listing requires a long-form prospectus under NI 41-101 that includes audited annual financial statements — typically two years for an issuer with limited operating history, three years otherwise. The statements must be audited under Canadian Auditing Standards by a public-accounting firm authorized to sign Canadian audit reports, and for material listings the auditor is typically a CPAB-registered firm. Reviewed-only or compiled financials are not sufficient for the audited periods, though reviewed interims are acceptable for the most recent interim period.
What's the difference between an audit and a review for prospectus purposes?
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An audit (under Canadian Auditing Standards, primarily CAS 700) provides reasonable assurance — a positive opinion that the financial statements are fairly presented in all material respects. A review (under CSRE 2400) provides only limited assurance — a negative-form conclusion that nothing has come to the auditor's attention indicating material misstatement. Annual financial statements included in a prospectus must be audited. Interim financial statements included in the prospectus are generally reviewed, not audited. The level of work — and the level of comfort the underwriters and the regulator can rely on — is materially different.
Can my private-company auditor follow me through the listing?
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Sometimes — but it depends on the firm. For a public-company audit, the firm needs the licensing, the public-company methodology, and (for TSX or material TSX-V issuers) CPAB registration. A small private-company practice without that infrastructure may not be able to sign the audit report on the prospectus financials. The honest test: ask the partner whether they currently sign audit reports on prospectus filings, and whether the firm is CPAB-registered. If either answer is no, plan to engage a different firm for the listing — well before the 3-month milestone.
How early should I engage an auditor for a listing?
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Six months out is a reasonable floor; nine to twelve months is more comfortable, especially if an IFRS conversion under IFRS 1 is needed or if the company has never been audited. The auditor needs time to: scope the engagement, obtain prior-auditor working papers under CAS 510, plan walkthroughs and risk-assessment under CAS 315, perform substantive testing, identify and document KAMs (if TSX), and read the MD&A and prospectus under CAS 720. A compressed timeline either expands the fee, narrows the audit-committee's review window, or both.
What's a comfort letter and do I need one?
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A comfort letter is a private letter from the auditor to the underwriters, providing limited assurance on prospectus items that aren't part of the audited financial statements — typically interim figures, percentage changes, ratios, KPIs, and any numerical text tied back to the accounting records. It's not a public-facing document, and it's not legally required by the securities regulators, but Canadian underwriting agreements generally require it. The procedures live in CAS 920 / CSAE 3000 territory depending on scope, and they take real time — plan for them in the final month.
Are Key Audit Matters (KAMs) required for a TSX-V listing?
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No — under CAS 701, KAMs are required only for issuers listed on a recognized stock exchange where the auditor's report is on listed-entity financial statements. The TSX qualifies; the TSX-V and the CSE are venture exchanges and KAM disclosure is optional rather than mandatory there. Many venture issuers nevertheless elect KAMs voluntarily to demonstrate transparency to investors and to align with their eventual graduation to the TSX. The decision is typically made in consultation with the auditor and the audit committee well before the audit report is dated.
Why does the first-year audit cost more than subsequent years?
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Three drivers. First, CAS 510 opening-balance procedures are a one-time workload — the auditor cannot rely on the prior auditor's conclusions without independent evidence, so substantive procedures expand. Second, CAS 315 (Revised) risk-assessment and walkthrough documentation is built from scratch in year one and only updated in subsequent years. Third, IFRS 1 conversion testing (if applicable) is concentrated in year one. Typical first-year premium is 20–40% over the eventual steady-state — the exact figure depends on entity complexity, the quality of prior accounting records, and whether prior-auditor working-paper access is clean.
Run the Auditus.ai pre-listing checklist on your file.
Upload your draft financials, the latest interim trial balance, and your prior-period reconciliations. Auditus.ai scores the file against the checklist behind this page — IFRS 1 elections, CAS 510 opening-balance evidence, NI 52-110 audit-committee readiness, MD&A consistency under CAS 720 — and tells you what will be flagged before the auditor arrives.