CRA late-filing penalties: what you owe and how to limit it.
Missed the filing deadline. The Canada Revenue Agency (CRA) charges a penalty and, separately, interest, and the two stack. Here is the math, the deadlines that actually apply, and a calculator that runs your number.
If the books are not caught up, the tax deadline shows up faster than expected. Take a breath. Late filings happen, and they are recoverable, but the CRA charges for the delay. Knowing exactly what you owe, and which penalty hurts more, makes the next move obvious.
The penalty and the interest
Missing the deadline triggers two charges, and the CRA assesses them separately. They sound similar. They are not.
The big one.
Charged as soon as the return is one day past the deadline. Hits whether you owe $100 or $100,000.
The slow one.
Charged on the tax balance from the day after the payment deadline at the CRA's prescribed rate, set each quarter. This is interest, not a penalty. The CRA charges it separately from the late-filing penalty.
The late-filing penalty is the bigger of the two for almost everyone. The interest stings, but the rate is set each quarter and it stops growing once you pay. The late-filing penalty is front-loaded: a flat 5 percent of the balance the moment you are late, then another 1 percent for every full month you stay late, up to 12 months. Both charges apply on top of the tax you already owe, not in place of it.
The math
For a first-time late filer, the failure-to-file penalty works out to:
Owe $10,000 and file six months late, and the failure-to-file penalty is $1,100. That is the flat $500, plus $100 a month for six months. Interest on the unpaid balance is on top of that, accruing daily.
The calculator
Plug in your balance and how late you are. The toggle at the top of the card switches between first-time and repeat-offender rates.
If you have been late before
The CRA reserves a bigger hammer for repeat late filers. If the CRA issued a demand to file and assessed a failure-to-file penalty in any of the three previous tax years, the rates double:
- 10 percent of the balance owing, plus
- 2 percent for every full month late, up to 20 months.
That ceiling is a 50 percent surcharge on the balance, before interest. Worth avoiding.
What is the penalty for filing taxes late in Canada?
The CRA charges 5 percent of the balance owing, plus 1 percent for each full month the return is late, up to 12 months. For repeat late filers (the CRA demanded a return and assessed a penalty in any of the three previous years), the rates double to 10 percent plus 2 percent per month, up to 20 months. Interest on the unpaid balance is charged separately at the CRA's prescribed rate.
When taxes are due
Two deadlines matter for any return: when the paperwork is due, and when the payment is due. They are not always the same day, and the CRA does not forgive interest because the form has not been filed yet.
Note the gap on row two. A self-employed sole proprietor files by June 15, but any tax owing is due April 30. Miss April 30 and interest starts running, even though the return is still on time. The same trap exists for corporations: the return is due six months after year end, but payment is due two or three months in.
How to limit the damage
You can avoid every late-filing penalty by filing and paying on time. Sometimes that is not the world you are in. If the deadline has already passed, two moves limit what you owe.
- File, even if you cannot pay. The failure-to-file penalty is bigger than the interest on what you owe. Filing on time, and paying late, is the cheaper of the two mistakes. Get the return in, then sort out the payment plan with the CRA.
- File quickly, but file right. The clock is running, so speed matters, but mistakes on a late return are an audit trigger. If the books are behind, get help cleaning them up before you submit. A bookkeeper for two weeks is cheaper than a CRA review of a sloppy return.
These are the federal numbers. For personal income tax, the CRA administers provincial tax on the same return everywhere except Quebec, so one penalty covers the combined balance. Separate provincial returns mainly apply to corporations in Alberta and Quebec, which run their own corporate tax, and to anyone filing personal tax in Quebec through Revenu Québec. If that is you, check the provincial penalty separately.
Sources and further reading
Where Numinor fits
Most late filings start with a bookkeeping problem. The deadline came around, the books were not ready, and the easier path was to wait. Numinor catches up the books, files the return, and gets clients current with the CRA in about 30 days for most situations. Then we keep the books on a monthly close so the next deadline is a non-event.
If you are behind, the first step is a free books review. We tell you what the catch-up actually looks like and what it costs, no pressure to sign.
Numinor gets you caught up and clear with the CRA.
Behind on taxes and bookkeeping? Our team handles the catch-up, files the back returns, and keeps the books current after. Bookkeeping plans start at $299 a month for Starter and $499 for Growth, with final pricing scoped on the call.