CAS 265: Communicating Deficiencies in Internal Control
Requires the auditor to communicate significant deficiencies in internal control identified during the audit to management and TCWG in writing.
Why CAS 265 matters
A late or vague CAS 265 letter can trigger an audit-committee escalation. Issuers should expect every prior-year significant deficiency to be re-evaluated.
Framework: Canadian Auditing Standards (CAS)
CAS are the auditing standards adopted by the Auditing and Assurance Standards Board (AASB) of CPA Canada. They are Canadian adoptions of the IAASB's International Standards on Auditing (ISAs) and govern every audit of financial statements performed in Canada.
Primary source: FRAS Canada
Frequently asked
What is CAS 265?
Requires the auditor to communicate significant deficiencies in internal control identified during the audit to management and TCWG in writing.
Why does CAS 265 matter for an audit?
A late or vague CAS 265 letter can trigger an audit-committee escalation. Issuers should expect every prior-year significant deficiency to be re-evaluated.
Which framework does CAS 265 belong to?
CAS 265 falls under Canadian Auditing Standards (CAS). CAS are the auditing standards adopted by the Auditing and Assurance Standards Board (AASB) of CPA Canada. They are Canadian adoptions of the IAASB's International Standards on Auditing (ISAs) and govern every audit of financial statements performed in Canada.
Related standards — Canadian Auditing Standards (CAS)
- CAS 200 — Overall Objectives of the Independent Auditor
- CAS 210 — Agreeing the Terms of Audit Engagements
- CAS 220 — Quality Management for an Audit of Financial Statements
- CAS 230 — Audit Documentation
- CAS 240 — The Auditor's Responsibilities Relating to Fraud
- CAS 250 — Consideration of Laws and Regulations
See how Auditus checks CAS 265
Auditus.ai runs PCAOB, ISA, and CAS engagements end-to-end and cites the exact standard behind every finding — including CAS 265.