What is a taxpayer relief application and when should I file one?

A taxpayer relief application (historically called a "fairness application") asks CRA to use its discretionary authority under the Income Tax Act to cancel or waive interest and penalties. It is separate from the objection process — you use it when you are not disputing the underlying tax owing but believe that, in fairness, the penalties or interest should be reduced or eliminated.

The strongest grounds are: circumstances beyond your control (such as a serious illness, natural disaster, or accident that prevented you from filing or paying on time); CRA error or delay (where CRA's own mistake contributed to the problem); and financial hardship (where you genuinely cannot afford to pay the accumulated interest and penalties without undue hardship). CRA expects documentation supporting whichever ground you rely on — medical records, disaster records, CRA correspondence showing delays, or a detailed financial picture.

Relief applications are reviewed separately from your underlying tax file and can take many months. If denied, you can request a second review within CRA and then apply for judicial review in Federal Court. Taxpayer relief does not change the underlying tax; it only potentially reduces the penalties and interest on top of it. It is most useful in situations where the tax itself is correct but the ancillary charges have ballooned due to circumstances you could not control.