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CRA Late-Filing Penalty & Interest Meter
Unfiled returns don't stop accruing cost just because you haven't dealt with them yet. See roughly what late-filing penalties and prescribed interest add up to.
Reading This Tool
How To Use This Calculator
Select whether this is a personal (T1) or corporate (T2) return, then enter how many months you're behind and roughly what you owe.
The chart shows how the combined penalty and interest have grown every month since the deadline passed, the longer the line runs, the more expensive waiting has already been. If you've filed late in any of the past 3 years, flip the repeat filer toggle, since the penalty structure roughly doubles.
Your Inputs
Estimated Liability Today
-Accrued Late-Filing Penalty
$0
Prescribed Interest Drag
$0
Total Owed On Top Of Tax
$0
How The Liability Has Grown Since Month 1
This estimate uses simplified late-filing penalty rules and an illustrative flat prescribed interest rate, compounded daily. Actual CRA interest rates are set quarterly and compound daily on the exact outstanding balance, which changes as payments are made. This is not a substitute for a statement of account from the CRA.