Most people pay roughly 20% to 30% of their CERB in tax, because the $2,000 payments arrived with nothing withheld and are treated as ordinary income at your marginal rate. How much tax you pay on CERB depends on what else you earned that year: the benefit stacks on top of employment, self-employment, and investment income, and the last dollars in the pile get taxed hardest.1Canada.ca. Canada Emergency Response Benefit (CERB): Closed
Why There’s a Bill at All
A regular paycheque has income tax pulled out before it reaches you. CERB didn’t work that way. The government paid $2,000 for each four-week eligibility period with zero deducted upfront, so the full amount landed in your account and many people spent it before thinking about April.2Canada.ca. It’s Tax Time! You’ve Got Questions? We’ve Got Answers. When you filed, the CRA treated every CERB dollar as regular taxable income, which is where the surprise balance came from.
How Your Rate Is Calculated
Canada uses a progressive system. CERB has no special rate of its own; it’s taxed at whatever marginal rate applies at the top of your total income for the year. For 2026, the federal government reduced the lowest bracket rate from 15% to 14%.3Canada Revenue Agency. Tax Rates and Income Brackets for Individuals The federal brackets now look roughly like this:
- 14% on the first ~$58,500 of taxable income
- 20.5% on the next portion up to ~$117,000
- 26% on income from ~$117,000 to ~$181,400
- 29% on income from ~$181,400 to ~$258,500
- 33% on everything above ~$258,500
Those are federal only. Your province or territory adds its own layer on top, typically starting somewhere around 4% to 10% on the lowest bracket. Combined, most people in the lowest bracket land between roughly 19% and 25% total, and higher earners pay considerably more.
A Worked Example
Say you earned $35,000 from work in 2020 and collected $8,000 in CERB. Your total taxable income was $43,000. The CERB portion is taxed at the same marginal rate as your last dollars of employment income. At the 2020 lowest federal bracket rate of 15% plus a typical provincial rate of 5% to 10%, that’s roughly $1,600 to $2,000 owed on the CERB alone. Someone who earned $80,000 from other sources and also collected CERB would owe more per dollar, because those payments fell into a higher bracket.
A Rule of Thumb
If you’re just trying to ballpark it, setting aside 20% to 25% of the benefit covers most situations for someone with modest employment income that year. Higher earners should assume closer to 30% or more. These are estimates, not substitutes for running the numbers through the CRA’s calculator or with a tax professional.
The Basic Personal Amount Can Wipe It Out
The basic personal amount shelters a chunk of income from federal tax entirely. For 2026 the credit is tied to roughly $16,400 in income.4Canada Revenue Agency. Line 30000 – Basic Personal Amount If CERB was your only income for a year and you received $8,000 or less, the BPA alone could erase most or all of your federal tax on it. Each province has its own personal amount credit too, so a filer whose total income stayed very low might owe little or nothing.
Where CERB Appears on Your Return
CERB income shows up on a T4A slip in Box 197, which is set aside specifically for Canada emergency benefits.5Canada Revenue Agency. Report Amounts on Your Tax Return – T4A COVID-19 If you received CERB through Service Canada rather than the CRA, the amount may appear on a T4E slip instead. You can pull your slips from CRA My Account if you no longer have the paper copies, and it’s worth cross-checking the total against your bank records so every eligibility period is accounted for.
If You Still Owe From 2020
Because CERB ended in 2020, plenty of the tax bills tied to it are years old at this point, and the CRA has been charging interest the whole time. Compound daily interest applies to unpaid balances, and the prescribed rate for overdue personal taxes in the first quarter of 2026 is 7% annually, adjusted each quarter.6Canada.ca. Interest Rates for the First Calendar Quarter Five-plus years of interest at rates in that range meaningfully increases what you now owe compared with the original tax figure.
On top of interest, filing late when you have a balance owing triggers a penalty of 5% of the balance plus 1% for each full month the return remains late, up to 12 months. Repeat late filers who were penalized in any of the previous three years and received a formal demand to file face 10% plus 2% per month, up to 20 months.7Canada Revenue Agency. Interest and Penalties on Late Taxes – Personal Income Tax Filing the return even when you can’t pay stops the late-filing penalty from growing, which is usually the bigger of the two costs.
If you can’t pay in full, the CRA will set up a payment arrangement rather than let the debt spiral. You can schedule pre-authorized debit payments through My Account or call the TeleArrangement line at 1-866-256-1147.8Canada Revenue Agency. Arrange to Pay Your Debt Over Time Interest keeps accruing while you pay it down, and the CRA can apply federal benefits like the GST/HST credit or Canada Child Benefit against your balance even while a plan is active.
If You Had to Repay CERB
Some recipients were later told they didn’t qualify and had to pay CERB back. The tax treatment depends on when the repayment happened. For any amount repaid after December 31, 2022, you claim the repayment as a deduction on line 23200 of the return for the year you actually made the repayment.9Canada Revenue Agency. Line 23210 – Federal COVID-19 Benefits Repayment Repay $4,000 in 2025, and $4,000 comes off your 2025 taxable income. The repaid amount appears on your T4A for the year you paid it back.
People who repaid by the end of 2022 had more flexibility, and could claim the deduction in the benefit year, the repayment year, or split it between the two using Form T1B. That option is closed for repayments made after 2022. The deduction effectively reverses the tax you originally paid on that income, though your actual refund depends on your other income and credits in the year of repayment.