
At a Glance
Understanding the scope and timeframe of Canada Revenue Agency's (CRA) authority to conduct audits is a key component of tax compliance. Generally, the CRA has the ability to audit tax returns up to three years (four years for non-CCPCs) after the original filing date. This period, known as the standard reassessment period, begins from the end of the tax year for which the return was filed. For instance, if an individual filed their 2018 tax return and was assessed on April 30, 2019, the CRA could potentially review and audit that return until April 30 2022.
However, there are certain conditions where the CRA may extend this period pursuant to subsection 152(4) of the Income Tax Act. In cases where there is evidence of misrepresentation due to neglect, carelessness, or willful default, the CRA possesses the discretion to audit beyond the initial three-year period. This could encompass instances of suspected fraud or significant non-compliance with tax laws. Additionally, it is important for taxpayers to be aware that the retention period for all tax documents and returns is six years from the end of the tax year to which the records relate.
Taxpayers should also recognize that proactive engagement during the audit process can be beneficial. It is often advised to respond promptly to CRA inquiries and to keep thorough records to support tax claims. This approach can facilitate a smoother audit experience and potentially minimize the likelihood of the CRA needing to extend its investigation into earlier tax years.
Overview of CRA Audit Time Limits
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The Canada Revenue Agency (CRA) has explicit guidelines regarding the period they can examine a taxpayer's filings through an audit. Under normal circumstances, the CRA evaluates returns from the most recent three years. However, should they identify substantial errors or omissions, these assessments can extend beyond this period.
When discussing the reassessment period it's important to clarify the difference between a review and an audit:
In the case of false statements or omissions, the CRA can audit records from any previous tax year. However, these actions are only taken if there's evidence of non-compliance with tax obligations.
Key points to remember about CRA audit time limits:
Taxpayers must ensure they keep their financial records for at least six years from the end of the last tax year they relate to, as advised by the CRA, to support their filings in the case of an audit.
Determining Factors for Audit Periods
In Canada, the Canada Revenue Agency (CRA) follows specific rules to determine the period during which they can audit a taxpayer. These rules vary based on statutory limits and can be extended in certain cases.
Statute-Barred Year
The CRA generally has the authority to audit a tax return within three years from the date of the initial assessment notice. This period is known as the "normal reassessment period." For individual taxpayers and Canadian-controlled private corporations (CCPCs), it means that the CRA can usually review returns filed within the last three years. For corporations that are non-CCPCs, the period extends to four years.
Special Cases Extending the Period
In certain situations, the CRA has the right to go beyond the standard reassessment period. These situations include:
In all cases, the CRA's extended audit rights underscore the importance of maintaining accurate records and compliance with tax laws.
Audit Process and Taxpayer Notifications
When initiating an audit, the Canada Revenue Agency (CRA) follows a structured process to notify taxpayers and review their financial records. Taxpayers are expected to keep their records up to date and readily available for examination.
Initial CRA Contact
Upon selecting a taxpayer for an audit, the CRA will make initial contact typically by mail or phone. The taxpayer will be informed about the specific years or periods under review and the type of audit being conducted. This initial communication will also include instructions on how the taxpayer should provide the necessary documentation.
Record Keeping Requirements
The CRA requires taxpayers to maintain accurate and complete records for a minimum of six years from the end of the last tax year they relate to. These records must be kept in a format that is accessible and readable by the CRA upon request.
Record types include, but are not limited to:
Audit Completion Timeline
A CRA audit may vary in duration depending on the complexity of the taxpayer’s situation. Taxpayers will be given a deadline for submitting their documentation to the CRA, and the agency will complete its review within a reasonable timeframe after receiving all necessary information. Once the audit is finalized, the CRA will issue a Notice of Assessment or Reassessment explaining any changes to the taxpayer's filing.
Common Triggers for Extended Audits
The Canada Revenue Agency (CRA) may extend the audit period beyond the standard timeframe when certain red flags or indicators of non-compliance are present.
Suspected Fraud or Misrepresentation
When there is an indication of fraud or intentional misrepresentation, the CRA has the authority to open an audit at any point. This can include:
Large or Unusual Deductions
The CRA pays close attention to:
Foreign Income and Assets Reporting
Taxpayers must report foreign income and disclose certain foreign assets. The CRA is vigilant for:
Legal Implications and Rights
When dealing with audits from the Canada Revenue Agency (CRA), taxpayers have specific legal avenues they can pursue and rights that protect them throughout the process.
Taxpayer's Legal Recourse
A taxpayer in Canada has the right to challenge the CRA’s findings post-audit through the objection process. They can file a formal dispute, or objection, if they believe the assessment or reassessment is incorrect. Following the objection, if the taxpayer still disagrees with the CRA’s decision, they may appeal to the Tax Court of Canada. Records should be kept for at least six years, as audits usually cover this period; however, if fraud or misrepresentation is suspected, the CRA has the authority to audit further back.
Protection under the Taxpayer Bill of Rights
The Taxpayer Bill of Rights outlines 16 rights affirming that taxpayers deserve to be treated with respect and have their cases examined impartially. Key rights include:
Preparation for a CRA Audit
When faced with a CRA audit, the key to a smooth process is meticulous preparation. Taxpayers should focus on two primary areas: ensuring their financial records are complete and organized, and seeking qualified professional advice to navigate the audit efficiently.
Organizing Financial Records
Taxpayers should consolidate all relevant financial documents to prepare for a Canada Revenue Agency (CRA) audit. Maintaining organized records simplifies the audit process. This includes:
It is advisable to review these records for accuracy and to ensure they are organized chronologically. Doing so facilitates the auditor's work and reflects the taxpayer's commitment to transparency.
Seeking Professional Advice
Professional guidance during a CRA audit can be invaluable. Taxpayers should:
This strategic preparation can help taxpayers protect their rights and interests while fulfilling their obligations under the CRA's scrutiny.
Frequently Asked Questions
The Canada Revenue Agency (CRA) has clear guidelines for audits and reassessments, and understanding these can help taxpayers prepare and comply with tax laws.
What triggers an audit from the CRA?
An audit by the CRA can be triggered by a variety of factors such as discrepancies between filed returns and information received from third-party sources, frequent losses on self-employed returns, types of deductions or credits claimed, and random selection.
How many years back does the CRA typically review when conducting an audit?
The CRA generally reviews the last three years of returns for an individual taxpayer. However, if they suspect a misrepresentation due to carelessness or willful actions, they can audit returns from any year.
What are the penalties for discrepancies found in a CRA audit?
If discrepancies are found during an audit, the CRA may impose penalties and interest. These penalties can range from 5% of the unpaid tax to 200% of the tax avoided in cases of gross negligence or fraud.
For how many years can you file back taxes in Canada?
In Canada, one can file back taxes for up to 10 years. However, the CRA routinely processes only the last six years of returns unless specific circumstances prompt the assessment of earlier returns.
What are the odds of being audited by the CRA?
The odds of being audited by the CRA are generally low for the average taxpayer. Specific risk factors such as high income, large or uncommon deductions, and owning a business can increase the likelihood of an audit.
Are there different audit time limits for individuals and corporations with the CRA?
Yes, the normal reassessment period is three years for individuals and corporations. However, this period can vary, and the CRA can reassess beyond three years if they find misrepresentations that amount to negligence or fraud.
Seb Prost, CPACPA, Ex-CRA
Seb is the founder of LedgerLogic and a CPA dedicated to simplifying finances for Canadian entrepreneurs. He specializes in setting up automated accounting stacks for e-commerce and agency owners.


