Every summer across Canada, tens of thousands of taxpayers open unexpected mail from the Canada Revenue Agency containing Form RC243: Tax-Free Savings Account (TFSA) Return, demanding hundreds or thousands of dollars in statutory penalties. For most Canadians, the violation was an innocent clerical oversight: making a withdrawal and re-depositing the funds in the same calendar year, or relying on outdated contribution room displayed on the CRA My Account portal. However, under the Income Tax Act, the CRA imposes an unyielding 1% per month penalty tax on every dollar of excess TFSA contributions until the mistake is formally remedied.
Under Section 207.02 of the Income Tax Act, an individual who contributes in excess of their lifetime TFSA contribution limit is subject to a 1% per month penalty tax on the highest excess TFSA amount in that month. The penalty continues compounding monthly until the excess capital is withdrawn or absorbed by new contribution room on January 1st. Taxpayers who made a bona fide reasonable error can petition the Minister for complete penalty cancellation under Section 207.06 using CRA Form RC4288.
How Is the TFSA Overcontribution Penalty Calculated?
The TFSA overcontribution penalty in Canada is a statutory 1% tax per month charged on the highest excess contribution balance in your account during each calendar month. Even if an excess contribution remains in your account for just a single day in a month, the full 1% penalty tax applies to that entire month until the excess is withdrawn.
The mathematical severity of the 1% monthly penalty is frequently underestimated. Unlike standard late-filing interest rates that are annualized (e.g., 9% per year), the TFSA penalty is 1% per month (12% annualized). If you inadvertently overcontribute $20,000 into a high-interest TFSA in January, the CRA penalty tax totals $200 per month. If left uncorrected until receiving the CRA Notice of Assessment in July, your accumulated penalty is $1,400—completely wiping out any investment returns earned on the capital.
The Two Most Common TFSA Overcontribution Traps
The vast majority of Canadian TFSA penalties do not stem from intentional tax evasion, but from two structural misunderstandings of TFSA mechanics:
| Overcontribution Scenario | The Mechanical Error | Statutory Penalty Trigger |
|---|---|---|
| The Same-Year Re-Deposit Trap | Withdrawing $10,000 in March and depositing it back into a TFSA in August | Withdrawn room is NOT added back until January 1st of the following year. Triggers 1%/mo on $10k. |
| The CRA Portal Reporting Lag | Relying on CRA My Account balance shown in February/March | Financial institutions only report TFSA transactions annually by end of February; portal data is outdated. |
| Bank-to-Bank Transfer Error | Withdrawing to chequing account and transferring to a new TFSA provider | Treated as a regular withdrawal + deposit rather than a direct qualifying institution transfer. |
For more details on optimizing Canadian tax-sheltered investment accounts, see US Dividend Withholding Tax in Canada (2026): TFSA vs. RRSP and CRA Form T1135 Foreign Income Verification in 2026.
Step-by-Step Playbook: Requesting Penalty Relief Under Form RC4288
If you receive a proposed assessment or formal Notice of Assessment for TFSA excess contributions, do not simply pay the penalty without requesting relief. Under Subsection 207.06(1) of the Income Tax Act, the CRA has statutory discretion to waive or cancel the 1% penalty tax in its entirety if you can establish two conditions:
- Immediate Withdrawal of the Excess: You must immediately withdraw the excess contribution from your TFSA back to a non-registered or chequing account. The CRA will never grant relief if the excess capital remains inside the tax shelter.
- Evidence of Reasonable Error: You must demonstrate that the excess contribution arose as a consequence of a reasonable clerical or administrative error, rather than deliberate tax planning. Examples include: reliance on erroneous bank advice, confusing transfer forms between financial institutions, or misunderstood annual withdrawal mechanics.
- Filing Form RC4288: Complete and submit CRA Form RC4288: Request for Taxpayer Relief: Cancel or Waive Penalties and Interest. Attach transaction receipts proving the date of withdrawal, a copy of the CRA Notice of Assessment, and a clear, factual letter explaining the reasonable error.
Never rely on the CRA My Account portal in the first quarter of the year to check your TFSA contribution room—it is routinely months behind. Maintain your own Excel ledger of all lifetime deposits and withdrawals. If you accidentally overcontribute, withdraw the excess capital the exact day you realize the mistake and immediately submit a Form RC4288 relief petition. The CRA routinely cancels first-time inadvertent penalties when prompt corrective action is documented.
People Also Ask (PAA)
When is TFSA withdrawal room restored?
Any amount withdrawn from a TFSA is added back to your contribution room on January 1st of the following calendar year, not in the year of the withdrawal.
Will the CRA waive the 1% monthly TFSA penalty?
Yes. Under Section 207.06(1), the CRA frequently waives the penalty for first-time offenders who can prove the overcontribution was a reasonable error and who immediately removed the excess funds upon discovery.
Does investment growth count towards my TFSA contribution limit?
No. Capital gains, dividends, and interest earned inside your TFSA do not count as contributions and do not reduce your contribution room.