CRA Penalty & Interest Calculator

Find out what you owe. Fix it before it gets worse.

Enter your details below. We'll estimate your penalties, interest, and show you the fastest path to getting current.

1. Basics

2. Optional

3. Results

Return type

Corporate (T2) Personal (T1) Trust (T3)

Unpaid tax at due date ($)

Months late

Repeat late filing (last 3 years)

Turn this on if CRA charged you a late-filing penalty in the past 3 years. Penalties double.

Don't know your unpaid tax? Estimate it.

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Revenue ($)

Expenses ($)

We'll estimate unpaid tax at 12.22% of profit (revenue minus expenses).

Prescribed interest rate (%)

CRA updates this quarterly. Change if needed.

I made all required instalments

When on, arrears interest is excluded.

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Inaccurate reporting (optional) Add penalty for false statements or omissions

Understated tax ($)

Penalty severity 50% (gross negligence minimum) 100%

Advanced timing

Exact days late

Annual revenue (for plan guidance)

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