If you have not filed your Canadian tax returns, or if you have filed them and CRA believes that you have not reported all of your income, they may issue a new worth assessment. They take two financial snapshots, one at the start of the audit period and one at the end.
"This article provides information of a general nature only. It is only current at the posting date. It is not updated and it may no longer be current. It does not provide legal advice nor can it or should it be relied upon. All tax situations are specific to their facts and will differ from the situations in the articles. If you have specific legal questions you should consult a lawyer."