Common Tax Mistakes Canadians Make

Many Canadians pay more tax than necessary simply because of avoidable mistakes. Understanding these common issues can help reduce taxes and avoid penalties.

Not using TFSA and RRSP properly

Failing to maximize TFSA or RRSP contributions — or using them incorrectly — can result in lost tax savings and slower wealth growth.

A yellow pool ball with the number one on it
A yellow pool ball with the number one on it
A blue pool ball with the number two on it
A blue pool ball with the number two on it
A red pool ball with the number three on it
A red pool ball with the number three on it

Missing eligible deductions and credits

Many Canadians miss deductions such as childcare expenses, medical expenses, or moving costs.

Forgetting to report all income

Unreported investment, rental, or side-income can lead to interest, penalties, and CRA reassessments.

A purple pool ball with the number four on it
A purple pool ball with the number four on it
A pool ball with the number five on it
A pool ball with the number five on it
A green pool ball with the number six on it
A green pool ball with the number six on it

Over-contributing to registered accounts

Exceeding TFSA or RRSP contribution limits can trigger 1% monthly penalties until the excess amount is removed.

Ignoring spousal tax-planning

Not using tools like spousal RRSPs or income-splitting strategies can lead to higher family tax bills.

Relying only on employer benefits

Employer plans may be limited and taxable, leading to unexpected tax exposure.