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Most accounting regulatory changes that reach a small Canadian business come down to three things: a tax filing rule, a payroll rate that moves every January, and a reporting standard you may never have to adopt. The one that has already bitten people is electronic filing. For tax years starting after 2023, corporations have to file their T2 return electronically, with a few exceptions.
Which changes actually reach a small business?
A lot of “regulatory change” headlines are about listed companies and banks. If you run a private company with a handful of staff, you can ignore most of them. So what should you watch?
We checked what the official pages say today. The table sums it up, and the gaps are marked as gaps.
| Area | What the official page says | What you do |
|---|---|---|
| T2 corporate return | Electronic filing is required for tax years starting after 2023. Insurance, non-resident and tax-exempt corporations are among the exceptions. | Use CRA-certified software or a CRA online service |
| Sustainability reporting | CSDS 1 and CSDS 2 were released on December 18, 2024 and are voluntary unless a regulator or government requires them | Nothing, unless a lender, regulator or parent asks |
| Records | Keep records six years from the end of the last tax year they relate to | Check that your software can export old years |
| Payroll | Remittance dates depend on your remitter type, and late amounts over $500 draw a penalty | Confirm your remitter type each year |
We did not confirm any change to the accounting standards that private companies use for their financial statements. If your accountant mentions one, ask which standard and which year it starts.
How do you keep track of accounting regulatory changes without a compliance team?
You don’t need a team. You need a list and a date.
Keep a one-page log with four columns: the change, who issued it, the date it applies from, and who on your side handles it. Review it twice a year, once in December before payroll rates reset, and once before your year-end. That’s it. Most owners who miss a change missed it because nobody owned the question.
Put the CRA business pages and your accountant’s newsletter in one place. Skip the rest. If something matters to a company your size, it will come up in both.
What does a payroll change cost you?
Payroll is where rate moves hit your cash, because the employer share sits on top of wages. Take one Ontario employee paid $3,000 every two weeks. The payroll remittance calculator shows $961.03 to send the CRA each pay period. Of that, $732.62 was held back from the employee and $228.41 is your own share. Your full cost for that pay period is $3,228.41.
Now picture a rate that rises by a fraction of a percent. On one employee it’s pocket change. On fifteen employees, the same change repeats fifteen times every pay period. Run your real headcount before the new rates start, not after.
The payroll deductions calculator breaks the held-back part down line by line. The take-home pay calculator shows the employee’s side, which helps when someone asks why their cheque moved.
Where do businesses slip up?
Three slips come up again and again, and none of them needs expert knowledge to avoid.
First, filing a T2 on paper because that’s how it was done before. The CRA says corporations are subject to a penalty for non-compliant returns, so check your software is certified before you start.
Second, assuming your remitter type stays fixed. It’s set by your average monthly withholding amount, so a growing payroll can push you into more frequent payments. Regular remitters pay by the 15th of the following month, while accelerated remitters pay more often. The penalty for a late remittance climbs from 3% for one to three days up to 10% for eight days or more, per the CRA page.
Third, deleting records early. Six years runs from the end of the last tax year the record relates to, and the CRA also expects the electronic systems holding those records to stay readable. Switching software? Export first.
A tax change can also alter your profit picture. Before you change prices or hours in response, test it with the corporate tax calculator. It estimates tax on the active business income of a Canadian-controlled private corporation and leaves out plenty of real-life detail such as dividends, credits and carried-forward losses, so treat the answer as a rough guide only.
Where the numbers come from
The filing, records and payroll points come from Canada Revenue Agency pages, read in September 2026. The sustainability standards come from the Canadian Sustainability Standards Board announcement of December 2024. Payroll dollar figures come from our own calculators, which use the 2026 data files on this site. Dates for 2026 returns are not yet published on the pages we checked, so confirm them with the CRA before you rely on them.
Frequently asked questions
Do I have to file my T2 electronically?
For tax years starting after 2023, corporations have to, apart from a few exceptions such as insurance, non-resident and tax-exempt corporations.
Are the Canadian sustainability standards mandatory?
No. CSDS 1 and CSDS 2 are voluntary unless a regulator or government requires them. A lender or parent company may still ask for them.
How long do I keep accounting records?
Six years from the end of the last tax year they relate to, unless the CRA gives permission to destroy them earlier.
What is the penalty for a late payroll remittance?
The CRA page lists 3% for one to three days late, rising to 10% at eight days or more, on amounts over $500. Check the page for repeat cases.
How often should I review rule changes?
Twice a year works for most small firms: December, before payroll rates reset, and before your year-end.
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Information only. This page is general information, not tax, legal or accounting advice. Tax-Services.ca is an independent publisher: we don't prepare or file tax returns or offer tax services, and we have no connection with the CRA, Revenu Québec, any government or any company named on this page. Check the figures that matter with an official source or a qualified professional.