TFSA Over Contribution Penalty and How to Fix It

The TFSA over contribution penalty is 1 percent per month of the highest excess amount in your account during each calendar month. No cushion exists, so a single dollar above your limit triggers it, and a partial month counts as a full one. The fix has three steps: withdraw the excess immediately, file Form RC243 by June 30 of the following year, and ask CRA to cancel the tax under subsection 207.06(1) if the mistake was a reasonable error. That last step works more often than people expect. This guide covers the calculation and the recovery.

How the TFSA Over Contribution Penalty Is Calculated?

Section 207.02 of the Income Tax Act sets the charge at 1 percent of the highest excess amount held in any calendar month. The word highest matters. CRA does not average the excess across the month or prorate it by day, so a $9,000 over contribution corrected on the third of the month costs the same as one that sat there for all thirty days.

Each month gets charged separately, and any part of a month counts as a whole month. Money deposited in error on March 30 and withdrawn on April 2 attracts two months of tax, because the excess existed during both March and April. That quirk turns a four day mistake into a 2 percent charge.

Work through an example. Your room for the year is $7,000 and you contribute $12,000 by accident, leaving a $5,000 excess. Leave it untouched for eight months and the tax is $400, calculated as 1 percent of $5,000 for each of those eight months. Catch it in the second month and the same error costs $100.

What the Penalty Costs Month by Month?

The table below shows the tax at common excess amounts across different recovery times.

Excess Amount	1 Month	3 Months	6 Months	12 Months
$1,000	$10	$30	$60	$120
$5,000	$50	$150	$300	$600
$10,000	$100	$300	$600	$1,200
$20,000	$200	$600	$1,200	$2,400
$50,000	$500	$1,500	$3,000	$6,000

Speed is the only variable you control once the deposit has happened.

Why the TFSA Gives You No Safety Cushion?

An RRSP forgives small errors. CRA allows a $2,000 lifetime buffer above your RRSP deduction limit with no penalty attached, which absorbs the kind of rounding mistake that happens when a pension adjustment arrives late.

The TFSA has nothing equivalent. Go over by $50 and the tax applies to that $50 for every month it remains, which is 50 cents a month in practice but still generates a CRA letter and a filing obligation. Our guide to the RRSP contribution limit in Canada sets out how the buffer works on that side, and the contrast is worth knowing before you round up a contribution.

Nor does the tax come out of the account. The 1 percent is payable personally, by cheque or online payment, in addition to withdrawing the excess itself. Leaving it unpaid adds arrears interest that compounds daily.

Three Mistakes That Create an Excess

Almost every case traces back to one of three errors, and all three are avoidable with a written record.

1. Replacing a withdrawal in the same calendar year is the leading cause. Money taken out does not return to your room until January 1 of the following year, so putting it back in September creates an excess even though the account looks like it has space. Our guide to TFSA withdrawal rules works through the timing in detail.
2. Accounts at several institutions cause the second. Each bank sees only its own numbers and applies only its own records, so someone contributing $4,000 at two banks has deposited $8,000 against a $7,000 limit without either bank raising a flag.
3. The third is trusting the figure in CRA My Account. Financial institutions report TFSA activity annually, so that number usually reflects the previous December 31 and misses everything you have done since. Our guide to the TFSA contribution limit explains how to calculate your real room from your own records.

How to Fix a TFSA Over Contribution?

Three actions in order, and the sequence matters because the waiver depends on the first one.

1. Withdraw the Excess Without Delay

Take out the full excess amount as soon as you discover it. Every month it stays adds another 1 percent, and the withdrawal is the one action that stops the meter.

Speed also protects your waiver request. Subsection 207.06(1) requires that you act without delay to remove the excess, so a withdrawal made weeks after you learned of the error weakens the case considerably. Document the date you found out and the date you withdrew, since CRA weighs the gap between them.

2. File Form RC243 and Schedule A by June 30

Form RC243, the TFSA Return, reports the over contribution, with Form RC243-SCH-A used to calculate the excess amounts month by month. Both are due by June 30 of the year after the over contribution, and payment of the tax is due on the same date.

CRA usually writes first. A TFSA excess amount letter arrives before any assessment, giving you a chance to explain or correct the position, and responding to that letter inside its deadline keeps the file simple. Ignoring it leads to an assessment with interest already running. Our guide on common tax filing mistakes in Canada covers the wider pattern of missed CRA correspondence.

3. Request a Waiver Under Subsection 207.06(1)

The Minister can waive or cancel the tax entirely, and this is the step most people skip. Two conditions apply: the liability has to have arisen from a reasonable error, and you have to withdraw the excess without delay.

Write a letter setting out exactly what happened, the date you discovered it, the date you withdrew, and why the error was reasonable. Attach bank statements showing both the deposit and the withdrawal, along with whatever caused the confusion, such as a CRA room figure that was out of date. Form RC4288, the Request for Taxpayer Relief, can accompany the explanation. Genuine errors handled quickly are often forgiven, while a pattern of repeated excesses is not.

Penalties That Go Beyond the 1 Percent

Two heavier taxes exist, and both land outside the ordinary excess rules. A deliberate over contribution, meaning one made knowingly to exploit the tax free shelter, attracts a tax of 100 percent of the income attributable to that excess rather than 1 percent of the amount. CRA applies it where the facts show intent rather than confusion.

Contributions made while living outside Canada carry their own charge. A deposit made during non residency attracts 1 percent per month on the full amount contributed, not merely on an excess, and it runs until the money comes out or residency resumes. Anyone unsure of their status should read our guide to the NR73 determination of residency status, and we handle those filings through non resident tax filing in Calgary.

US citizens face a separate problem rather than a Canadian penalty. The IRS does not recognise the TFSA shelter at all, which creates reporting obligations independent of anything CRA charges, covered in our guide on TFSA for US citizens in Canada.

Catch the Excess Before CRA Does

The TFSA over contribution penalty is small when caught in weeks and expensive when caught in years. CRA reconciles institution reporting after the calendar year ends, so an error made in February may not generate a letter until the following summer, by which time sixteen months of tax has accrued on the same mistake.

Keep a single dated log of every contribution and withdrawal across every TFSA you hold, and total it yourself before any deposit. That record is also the evidence a waiver request rests on, since CRA wants to see what you relied on and when you acted. Our guide on how to reduce your year end tax bill in Canada covers the December review this belongs in.

Tax Return Filers PC calculates real contribution room and prepares waiver requests as part of personal income tax in Mississauga, so an excess gets removed before the tax compounds. Clients in Peel Region get the same review through personal income tax in Brampton.