Understanding Notice of Assessment (NOA)
A Notice of Assessment (NOA) is a statement from the CRA explaining your tax assessment calculation. It confirms your income, deductions, and credits claimed. It’s issued after filing your tax return.

Understanding Notice of Assessment (NOA)
Definition and Purpose of a Notice of Assessment
A Notice of Assessment (NOA) is an official statement issued by the Canada Revenue Agency (CRA) after processing your income tax return. Think of it as a summary of your tax situation for a specific tax year. It outlines the CRA’s evaluation of the income you reported, the deductions and credits you claimed, and the resulting tax you owe or the refund you’re entitled to receive.
The primary purpose of the NOA is to inform you of the CRA’s assessment of your tax return. It serves as confirmation that your return has been received and processed. The NOA provides a clear breakdown of how your taxable income was calculated, including any adjustments made by the CRA. It details the amount of refund you can expect or the balance you still owe. This document is essential for various financial applications and verifying income.
Understanding Notice of Assessment (NOA)
Importance of Reviewing Your NOA
Reviewing your Notice of Assessment (NOA) is crucial, acting as a financial health check. The NOA confirms that the income, deductions, and credits you claimed match the CRA’s records. Discrepancies can indicate errors in your initial filing or information the CRA has on file from other sources. Identifying these early can prevent future tax issues.
Your NOA is essential for various applications. It’s used as proof of income when applying for loans, mortgages, or government benefits. Any errors on your NOA can negatively impact these applications. Carefully checking your NOA ensures its accuracy, protecting your financial interests. It also provides valuable information for future tax planning, helping you optimize deductions and credits.

Key Components of a Notice of Assessment (Sample PDF)
The NOA shows how your taxable income was calculated. It includes your total income, deductions, and any adjustments made. This section is crucial for understanding your tax obligations.
Taxable Income Calculation
This section details how the CRA determined your taxable income. It starts with your total income from all sources, such as employment, investments, and self-employment. From this total, various deductions are subtracted. Common deductions include RRSP contributions, childcare expenses, and eligible moving expenses. The NOA will clearly list each deduction claimed and the corresponding amount allowed by the CRA. Any adjustments made by the CRA to your reported income or deductions will also be explained here. Understanding this calculation is vital for verifying the accuracy of your tax return and ensuring you’ve received all eligible deductions. It provides a transparent breakdown of how your final taxable income, the base for calculating your tax liability, was derived. Review this section carefully to identify any discrepancies or potential errors.
Refund or Balance Owing
This section prominently displays whether you are entitled to a refund or owe a balance to the CRA. If a refund is due, the amount will be clearly stated, along with information on how it will be issued (e.g., direct deposit). If you owe a balance, the NOA will specify the amount due and the payment deadline. It’s crucial to note the payment deadline to avoid penalties and interest charges. The calculation leading to the refund or balance owing is based on your taxable income, applicable tax rates, and any tax credits you’re eligible for. This section may also include details of any prior year amounts owing that have been applied to reduce your refund or increase your balance. Understanding this section is essential for managing your tax obligations and ensuring timely payment or receipt of funds.
Explanations and Adjustments
This section provides detailed explanations of any adjustments made to your initially filed tax return. The CRA may adjust your return based on information they have, such as discrepancies with reported income or claimed deductions. This section will outline the specific line items that were adjusted and the reason for the change. For example, if you claimed a deduction without proper supporting documentation, the CRA might disallow it, and this section would explain why. It’s crucial to carefully review this section to understand the basis for any adjustments. If you disagree with an adjustment, this section will also provide information on how to file a notice of objection. Understanding these explanations is essential for ensuring the accuracy of your tax assessment and for addressing any potential issues with your tax filing practices in the future. It ensures transparency in the assessment process.
Accessing and Obtaining a Notice of Assessment (PDF)
Access your NOA online through CRA My Account. It’s a secure portal where you can view, download, and print your NOA in PDF format after your tax return has been processed.
CRA My Account Access
The most convenient way to access your Notice of Assessment (NOA) is through the CRA’s My Account service. This secure online portal allows you to view and download your NOAs for various tax years as PDF documents. To use this service, you must first register for a CRA My Account.
Registration involves providing personal information, such as your social insurance number, date of birth, and address. The CRA may also ask security questions to verify your identity. Once registered, you can log in to your account and navigate to the “Tax Returns” section. From there, you can select the specific tax year you need and view or download your NOA as a PDF file. This method offers quick and easy access to your tax information, ensuring you have the necessary documents readily available for various purposes.
Requesting a Copy Online
If you’re unable to access your NOA through CRA My Account, you can request a copy online using the CRA’s online services. This option is available even if you haven’t fully registered for My Account, offering a streamlined approach to obtaining your tax documents.
To request an NOA online, you’ll typically need to provide identifying information, such as your Social Insurance Number (SIN), date of birth, and current address. The CRA uses this information to verify your identity and locate your tax records. Once your identity is confirmed, you can submit your request for a copy of your NOA. The CRA will then process your request and mail the NOA to your address on file. This method is convenient for those who prefer not to fully register for My Account but still require a physical copy of their NOA.
Alternative Methods for Obtaining NOA
Besides using CRA My Account or requesting online, alternative methods exist for obtaining your Notice of Assessment. You can request it by phone, although this option may require security verification. Contact the CRA directly and be prepared to answer questions to confirm your identity.
Another method is through mail. You can send a written request to the CRA, including your SIN, address, and the tax years needed. This process takes longer, so allow ample time.
Lastly, authorized representatives, like accountants, can access your NOA with your permission. Ensure proper authorization forms are completed for security and privacy. These alternative methods provide flexibility in accessing your NOA, catering to diverse needs and preferences. Consider processing times and security when choosing the best option for you.
A Notice of Assessment (NOA) contains crucial details about your tax return. This includes your assessed income, deductions, credits, and the resulting refund or balance owing.
Understanding Assessment Details
When reviewing your Notice of Assessment (NOA), pay close attention to several key sections. First, verify your assessed income, ensuring it matches your reported income. Then, scrutinize the deductions and credits claimed, confirming their accuracy against your supporting documents. Any discrepancies should be investigated promptly. The NOA also outlines how your refund or balance owing was calculated, providing a clear breakdown of the figures used. Understanding these details empowers you to ensure the accuracy of your tax assessment. Furthermore, the NOA may include important information regarding any adjustments made by the CRA to your return. This could involve changes to claimed deductions, credits, or income amounts. Carefully reviewing these adjustments is crucial to understanding the final assessment. A clear understanding of these details is key to correctly interpreting the NOA.
Deciphering Codes and Abbreviations
A Notice of Assessment (NOA) often contains a variety of codes and abbreviations that can initially seem confusing. These codes are used by the CRA to efficiently communicate specific information about your assessment. Understanding these codes is crucial for accurately interpreting your NOA. Common abbreviations might relate to specific credits, deductions, or adjustments made to your tax return. Resources are available on the CRA website and in the guide to help you decipher these codes and abbreviations. For instance, a code might indicate a specific line number on your tax return that has been adjusted. Identifying the corresponding line allows you to understand the nature of the change. Furthermore, some codes may refer to specific tax laws or regulations. A careful review of these codes, with the aid of CRA resources, will ensure you fully comprehend your tax assessment.

Interpreting a Notice of Assessment Sample PDF
Identifying Potential Errors
After receiving your Notice of Assessment (NOA), it’s crucial to carefully review it for potential errors. Discrepancies may arise due to data entry mistakes, unreported income, or incorrect application of deductions or credits. Start by comparing the information on your NOA to your original tax return. Verify the accuracy of your Social Insurance Number (SIN), income amounts, and claimed deductions. If you spot an error, gather supporting documents to substantiate your claim. Common errors include incorrect amounts for RRSP contributions, medical expenses, or tuition fees. If you identify a mistake, promptly contact the CRA to initiate a reassessment. Ignoring errors can lead to penalties or missed refund opportunities. Keeping organized records and double-checking your return before submission can minimize the risk of errors. Consulting a tax professional can also help ensure accuracy and identify potential discrepancies on your NOA.
An Amended Notice of Assessment indicates changes to your original tax assessment. This happens when the CRA adjusts your return due to new information or corrections you submitted.
Reasons for Amendment
An amended notice arises from adjustments to your initially assessed tax return. This could be triggered by several factors. The CRA might reassess based on new information received, such as updated income details from a third party. Alternatively, you may have proactively submitted corrections or additional documentation to your tax return, prompting a review and subsequent amendment. Common reasons include changes to reported income, adjustments to claimed deductions or credits, or the discovery of errors in the original filing. Receiving an amended notice necessitates a careful review to understand the specific alterations made and their impact on your tax obligations, potentially affecting your refund or balance owing. Discrepancies should be addressed promptly with the CRA.

Amended Notice of Assessment
What to do if you receive an Amended Assessment
Upon receiving an amended Notice of Assessment, the first crucial step is to carefully compare it with your original NOA and your filed tax return. Scrutinize each change to understand the reason for the amendment, paying close attention to the explanations provided by the CRA. Verify if the adjustments are accurate and align with any corrections you may have submitted. If the amended assessment results in a different refund amount or balance owing, recalculate your tax liability to confirm the figures. Should you disagree with the changes or find discrepancies, gather supporting documents and contact the CRA immediately to discuss your concerns. Understanding the amendment’s impact and acting promptly is essential to avoid potential penalties or interest charges.