Updated Checked by the Tax-Services.ca editorial team How we check
The Canada tax agency is the Canada Revenue Agency, the CRA. It administers tax laws for the federal government and for most provinces and territories, and it pays out benefit programs through the tax system. Quebec is the big exception, because Quebec runs its own provincial income tax through Revenu Québec.
What does the Canada tax agency handle?
Most of what you do each spring goes to it. That covers your federal return, the provincial tax on the same return in most provinces, and the benefits tied to filing. Here’s who deals with what.
| Item | Who handles it |
|---|---|
| Federal income tax | CRA |
| Provincial income tax, outside Quebec | CRA, on the same return |
| Provincial income tax, Quebec | Revenu Québec, on a separate return |
| Benefit programs delivered through the tax system | CRA |
| Tax instalments for individuals | Paid to the CRA |
One thing worth saying plainly. A private firm that calls itself a tax agency is not the CRA and can’t act for it. This site isn’t the CRA either.
What dates do you have to know?
For the 2025 return, most people had to file and pay by April 30, 2026. Self-employed people had until June 15, 2026 to file, but any balance owing was still due on April 30. The CRA’s due dates page lists them, and it also notes that if a date lands on a weekend or holiday, the return counts as on time if it arrives the next business day.
What about the 2026 return? No filing dates were up yet when we looked, so don’t plan around a guess. Check that page when tax season opens.
Instalments run on their own schedule. You may have to pay them if your net tax owing passes $3,000 ($1,800 for Quebec) in the current year and in one of the two before. The 2026 due dates are March 15, June 15, September 15 and December 15.
How much will you send to the CRA?
A worked case helps. Say you’re an Ontario employee earning $60,000. The income tax calculator shows about $8,320 of income tax for the year, with CPP and EI on top.
Most of that comes off your paycheque through the year, and you settle the difference when you file. The tax refund calculator compares what was withheld with what you owe. A refund means you overpaid during the year. A balance is what’s due by the deadline.
Picture Dana in Calgary, who gets a T4 in February and a small T5 from a savings account. She doesn’t send anything to the CRA until she files, and then the return settles everything at once: tax withheld, credits, and the benefits she qualifies for. Most Canadians never need to deal with the agency beyond that yearly return, a few clicks in their online account, and the odd letter.
Which benefits come through the agency?
Several programs run through your tax return, and each one needs a filed return. The Canada Child Benefit calculator and the GST/HST credit calculator estimate two of them. The CRA warns that filing late can interrupt benefit payments, including the GST/HST credit, the Canada Child Benefit and Old Age Security.
That alone is a reason to file even when you owe nothing.
Can someone else deal with the CRA for you?
Yes, with your permission. The CRA lets you authorize a representative, such as an accountant, a lawyer or a family member, and you can view, change or remove that access in your CRA account. The access lasts until someone cancels it, or until the expiry date you set. Without it, a preparer can’t see your account. The tax instalments calculator is a handy thing to bring along.
How can you tell a real CRA message from a scam?
Scammers love tax season. The federal government’s fraud and scams page lists the classic warning signs: a request for payment by cryptocurrency or gift cards, a demand for immediate payment, and threatening language. If you’re unsure about a message, contact the department directly through its own website, which starts with canada.ca or ends in .gc.ca, rather than replying to the message.
What the calculators can’t tell you
They estimate. Your assessment from the CRA is the final answer, and it uses the slips the CRA received and any claims you made. We haven’t listed phone numbers or service hours, since they change, and we can’t speak for how the CRA handles your file. For your own account, the CRA’s website is the place to check.
Our sources
The CRA‘s role and Quebec’s separate return come from the CRA’s own pages. Due dates come from its important dates page and its instalment pages, and the scam warning signs from the Government of Canada’s fraud page. Representative rules come from its authorization page. The tax example comes from this site’s calculator using 2026 federal and Ontario rates. We are not connected to the CRA or any government.
Frequently asked questions
What is the Canada tax agency?
It's the Canada Revenue Agency, or CRA. It administers tax laws for the federal government and most provinces and territories.
Does the CRA handle Quebec income tax?
No. Quebec runs its own provincial tax through Revenu Québec, so Quebec residents may file a separate provincial return.
What was the 2025 return deadline?
April 30, 2026 for most people. Self-employed people had until June 15, 2026 to file, but any balance was still due April 30.
When is the 2026 return due?
We couldn't find the 2026 dates published yet. Check the CRA due dates page before you plan around one.
When do I owe tax instalments?
If your net tax owing is over $3,000 ($1,800 in Quebec) in the current year and in one of the two before. Dues are March 15, June 15, September 15 and December 15.
- How Canadian income tax works: brackets and credits
How federal and provincial Canadian income tax stack up, what marginal and average rates mean, and how credits and deductions change your bill