When the Taxman Has a Few Questions About Your Return

By this time of the year, virtually all Canadian residents have filed their income tax return for 2023 and have received the Notice of Assessment issued by the Canada Revenue Agency (CRA) with respect to that tax filing. Most taxpayers, therefore, would consider that their annual filing and payment obligations are done and behind them for another year.

It can, therefore, be a little surprising to receive a communication from the CRA in mid-summer and more than a little unsettling to find out that the Agency has some further questions about the tax return that the taxpayer thought was already completed. Notwithstanding, that’s an experience that millions of taxpayers will have over the next few weeks and months.

Between February 5 and June 24 of this year, the Canada Revenue Agency received and processed more than 30 million individual income tax returns filed for the 2023 tax year, and issued a Notice of Assessment in respect of each one of those returns. The sheer volume of returns and the processing turnaround timelines mean that the CRA does not (and could not possibly) do a manual review of the information provided in a return prior to issuing the Notice of Assessment. Rather, returns are scanned by the Agency’s computer system and a Notice of Assessment is then issued.

In addition, the CRA has, for many years, been successful in encouraging taxpayers to fulfill their filing obligations online, through one of the Agency’s electronic filing services. This year, just under 29 million (or 93%) of individual returns for 2023 were filed by electronic means. While e-filing means that the turnaround for processing of returns is much quicker, there is, by definition, no paper involved.

The Canadian tax system has always been what is termed a “self-assessing” system, in which taxpayers report income earned and claim deductions and credits to which they believe they are entitled. Prior to the advent of e-filing there were means by which the CRA could easily verify claims made by taxpayers. Where returns were paper-filed, taxpayers were usually required to include receipts or other documentation to prove their claims, whatever those claims were for. For the 93% of returns which were filed this year by electronic means, no such paper trail exists. Consequently, the potential exists for misrepresentation of such claims (or simple reporting errors) on a large scale.

The CRA’s response to that risk is to conduct a wide range of review programs, some of them carried out before a Notice of Assessment is issued for the taxpayer’s return, and others after that Notice of Assessment has been issued and sent to the taxpayer. Regardless of the timing, in all cases the purpose of the review is to obtain from the taxpayer the information or documentation needed to support claims for deductions or credits made by the taxpayer on the return. The CRA also administers a Matching Program, in which information reported on the taxpayer’s return (both income and deductions) is compared to information provided to the CRA by third-party sources (like T4s filed by employers or T5s filed by banks or other financial institutions).

Being selected for review under either program means, for the individual taxpayer, the possibility of receiving unexpected correspondence, or a telephone call, from the CRA. Receiving such correspondence or such a call from the tax authorities is almost guaranteed to unsettle the recipient taxpayer, who may immediately conclude that he or she has done something very wrong and is facing a big tax bill. However, in the vast majority of cases, the contact is just a routine part of the Agency’s processing review mandate.

Where the initial contact from the CRA to the taxpayer is done by telephone, it’s important that the taxpayer verify the identity of the person claiming to be a representative of the Agency. As virtually everyone knows by now, fraudulent or “scam” calls purporting to be from the CRA have become commonplace. To assist taxpayers in confirming that any telephone contact received is a legitimate one, the CRA has provided information on how to respond to such a call; that information can be found on the CRA website at Verify it's the CRA calling - Scams and fraud - CRA - Canada.ca.

A taxpayer whose return is selected as part of a processing review program will be asked to provide verification or proof of deductions or credits claimed on the return –usually by way of receipts or similar documentation. Or, where figures which appear on an information slip – for instance, the amount of interest income earned – don’t match up with the amount of such interest income reported by the taxpayer, they will be contacted to provide an explanation of the discrepancy.

Of course, most taxpayers are not concerned so much with the kind of program or programs under which they are contacted as they are with why their return was singled out for review or follow-up. Many taxpayers assume that it’s because there is something wrong on their return, or that the letter is the start of a tax audit process, but that’s not necessarily the case. Returns are selected by the CRA for pre- or post-assessment review for a number of reasons. Canada’s tax laws are complex and, over the years, there are areas in which the CRA has determined that taxpayers are more likely to make errors on their return. Consequently, a return which includes claims in those areas (like dependant tax credit claims, or claims for medical expenses, moving expenses, or tuition tax credits) may have an increased chance of being reviewed. Where there are deductions or credits claimed by the taxpayer which are significantly different or greater than those claimed in previous returns, that could flag the return for review. And, if the taxpayer’s return has been reviewed in previous years, and especially if an adjustment was made following that review, subsequent reviews may be more likely. Finally, many returns are picked for the processing review programs simply on the basis of random selection.  

Regardless of the reason for the follow-up, the process is the same. Taxpayers whose returns are selected for review will be contacted by the CRA, usually by letter, identifying the deduction or credit for which the CRA wants documentation or the income or deduction amount about which a discrepancy seems to exist. The taxpayer will be given a reasonable period of time – usually a few weeks from the date of the letter – in which to respond to the CRA’s request. That response should be in writing, attaching, if needed, the receipts or other documentation which the CRA has requested. All correspondence from the CRA under its review programs will include a reference number, which is usually found in the top right-hand corner of the CRA’s letter. That number is the means by which the CRA tracks the particular inquiry, and should be included in the response sent to the Agency. It’s important to remember, as well, that it’s the taxpayer’s responsibility to provide proof, where requested, of any claims made on a return. Where a taxpayer does not respond to a CRA request or does not provide such proof, the Agency will proceed on the basis that the requested verification or proof does not exist and will assess or reassess accordingly.

Taxpayers who have registered for the CRA’s online tax program My Account (or whose representative is similarly registered for the Agency’s Represent a Client online service) can usually submit required documentation electronically. More information on how to do so can be found on the CRA website at Submitting documents online – Pre-assessment Review, Processing Review and Request Verification Programs - Canada.ca.