MAHTAB SAGHAFI, Senior Tax Advisor

Tips for preventing Tax Audit

A tax audit is an experience every sane businessperson strives to avoid. Unfortunately, there's no way to guarantee that the CRA (Canada Revenue Agency)/RQ (Revenue Quebec) won't pay you an unwelcome visit; the government's exact formula for choosing who is audited remains a well-guarded secret. And even if you are chosen for a tax audit, you may face a variety of different types.

Even if you can't be sure you'll avoid an auditor's attention, however, tax experts have identified some factors that may flag a return for closer scrutiny. It pays to be extra careful when filling out your tax return, and to keep the best possible records to document your business operations and expenses, if you fall into one of the following categories:

  • Self-employed people;
  • Corporate returns reporting income of $250,000 or more;
  • Individuals who claim a home office deduction;
  • Sole proprietors in businesses;
  • Where income is mostly attained from tips, such as waiters and cab drivers;
  • Involving large amounts of cash, such as auto salespeople;
  • Involving a lot of travel, such as airline pilots and flight attendants; 
  • That are service-oriented, such as lawyers and doctors;
  • Recreational-type businesses that could be classified as hobbies;
  • Businesses using subcontractors instead of employees;
  • Returns with large deductions relative to one's income for charitable gifts, travel, meals, and entertainment.


Whether your business is more likely to be an CRA/RQ target, experts say you can still reduce your risk of an audit by:

  • Answering all questions on your tax return;
  • Using exact numbers, not nice round numbers (use $4,892.18, not $5,000.00);
  • Double-checking your math for errors;
  • Preparing your report neatly and accurately;
  • Attaching explanations for any items that may appear questionable.


If you do get audited, the burden of proof lies with you (see Preparing for a Tax Audit for more information). You'll need to substantiate and account for all deposits, and you'll have to prove that all your expenses — such as travel, meal, and entertainment costs — were necessary for your business. Always keep logs of your business activities, including detailed dates and locations, exact amounts and descriptions for expenses, names of the people with whom you did business, and the topics you discussed. In addition, save applicable documents, such as receipts, bank statements, and cancelled checks.

For Tax Emergency Advices or any Pre-Audit help:

 Email: Cette adresse courriel est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser. with “Tax Emergency”in your email subject line. Or, pick up the phone and call Mahtab Saghafi at 1-514-426-7200 ext.101 now.