Form RC4288 is used by individuals and businesses to request the cancellation or waiver of penalties and interest imposed by the Canada Revenue Agency (CRA) due to extraordinary circumstances. It is intended for those who have encountered situations beyond their control that affected their ability to meet tax obligations.

Individuals and businesses who have been assessed penalties and interest by the CRA and have experienced extraordinary circumstances that prevented them from complying with tax obligations.

Valid reasons include extraordinary circumstances such as natural disasters, serious illness, or CRA processing delays.

Retain medical records, evidence of natural disasters, and any relevant correspondence with the CRA.

You can submit the form electronically through your CRA My Account or by mail to the appropriate Tax Centre.

The CRA will review your application and may approve or deny your request, providing reasons for their decision.

Processing times can vary, typically taking several months.