Browse Penalties, Interest, and Enforcement

Penalties, Interest, and Enforcement

Canadian penalty, interest, and enforcement terms used when returns or payments are late or unresolved.

Penalty language matters because many problems are not about the return itself but about what happens after deadlines are missed or balances stay unpaid.

Use This Section When

  • the issue is no longer the definition of income, but the consequence of a missed deadline
  • a taxpayer owes money and needs to understand what can happen next
  • you need to distinguish tax owing from an added penalty or enforcement concept

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What Belongs Here

This section is the right home for missed-deadline language, unpaid-balance consequences, interest, penalties, and related enforcement vocabulary. It explains the extra terms that appear once ordinary filing workflow breaks down or payment problems remain unresolved.

In this section

  • Interest
    Interest terms that apply when Canadian tax balances remain unpaid after the due date.
    • Arrears Interest
      Arrears interest is the interest that accrues when a tax amount remains unpaid after the due date.
  • Penalties
    Penalty terms that apply when filing or payment obligations are missed.
    • Late-Filing Penalty
      Late-filing penalties apply when required returns are filed after the CRA deadline and the penalty conditions are met.
Revised on Friday, April 24, 2026