What are T3s? If you’ve never filed a T3 trust return before, the process can feel confusing… and with new CRA trust reporting rules (including upcoming 2025 requirements) now in place, a lot more Canadians are discovering that they need to file one.
Whether you’re an executor, the trustee of a family trust, or a business owner using a trust in your corporate structure, this guide will help you understand what’s required, who needs to file a T3 trust return, when to file it, and how to stay compliant.
Let’s break it all down in plain language, from a CPA’s point of view.
For more information about T3s, take a look at T3 Trust Returns: How to Ditch the Stress and File On Time (Without the Panic)
What Is a T3 Trust Return?
A T3 trust return (formally called the T3 – Trust Income Tax and Information Return) is the tax return used to report the income earned by a trust in Canada. Many people refer to it as the T3 trust income tax form, because it operates similarly to personal or corporate tax returns but is specifically designed for trust income tax reporting in Canada.
A T3 return reports items such as:
- Interest, dividends, and capital gains earned on investments
- Rental or business income held in trust
- Distributions made to beneficiaries
If you’re searching for “Canada Revenue Agency T3 trust return” or even just “What are T3s?” online, this is the exact filing requirement the CRA is referring to.

Who Needs to File a T3 Return?
This is the big question I get from clients: “Do I even need to file a T3 return?”
Here’s the short answer:
If you’re the trustee of a family trust, testamentary trust, estate, or even a bare trust, you may now be required to file – even if the trust didn’t earn any income.
In the past, only trusts with income or distributions needed to file. But starting with the 2023 tax year (and tightening further under CRA trust reporting rules 2025), the CRA expanded filing requirements significantly.
You now need to file a T3 return if:
- The trust holds assets (even if there’s no income)
- It’s a bare trust (e.g., someone holds property on behalf of another person)
- The trust is used for income splitting or family succession
- You’re the executor of an estate that hasn’t been wound up
If you’re unsure, check with a CPA. Many Canadians now fall into this filing requirement and don’t even know it.

What’s the Deadline for Filing a T3 Trust Return?
The T3 return is due 90 days after the trust’s year-end.
For most trusts with a December 31 year-end, the deadline is March 30 (or March 31 in a leap year).
Missing the deadline can lead to penalties – and with expanded CRA reporting requirements, those penalties are becoming more common.
Missing the deadline is an obvious mistake for a small business owner. But do you know these less obvious mistakes? Read Small Business Tax Mistakes to Avoid: What Your CPA Wishes You Knew to find out.
What’s New: Expanded CRA Trust Reporting Rules
As part of Canada’s efforts to increase financial transparency and combat tax avoidance, the CRA has introduced enhanced reporting rules for trusts – rules that become even more prominent under CRA trust reporting rules 2025.
New requirements include:
- Identifying information for all trustees, beneficiaries, settlors, and protectors
- Details on trust assets, relationships, and roles
- Mandatory filing for bare trusts, even if they earned zero income
Examples of trusts now required to file include:
- A parent holding property for a child
- A business owner using a family trust to hold corporate shares
- Real estate held jointly where one party is technically holding title for another
This has created widespread confusion, leading many Canadians to search terms like:
- “bare trust reporting CRA”
- “who needs to file a T3 return”
Bottom line: If a trust exists – even informally – you should speak with a CPA to determine if a T3 return is required.
What Goes Into a T3 Return?
Filing a T3 return involves more than just filling out a form. Key components include:
- Reporting trust income (interest, dividends, capital gains, rental, business)
- Issuing T3 slips to beneficiaries
- Reporting trust expenses and deductions
- Providing identifying information for all related parties
- Declaring whether income was distributed or retained
Quick distinction:
- The T3 return = the full tax filing for the trust
- The T3 slip = what beneficiaries receive to report their income
Common Mistakes (And Penalties) With T3 Returns
Some of the most frequent mistakes include:
- Not filing when required – especially with bare trusts
- Confusing T3 slips with the full T3 return
- Missing beneficiary or trustee details
- Failing to report certain types of income
- Assuming no filing is needed because “nothing happened”
Penalties for non-compliance:
- $25 per day, up to a maximum of $2,500
- Additional penalties for gross negligence or failure to provide required information
Even a trust with no activity could face steep penalties if it falls under the new reporting rules.
How a CPA Can Help With Your T3 Return
Filing a T3 return isn’t just about checking boxes – it’s also about strategy.
A CPA can help you:
- Determine whether a return is required
- Prepare and file the T3 trust income tax form and T3 slips accurately
- Review trust income for tax planning
- Structure distributions strategically
- Minimize audit and penalty risks
If you’re managing a family trust, estate, or bare trust arrangement, it’s always better to get professional support.

A CPA can help with lots of things, not just T3s. Read Beyond Taxes: How a CPA Can Help Your Small Business Grow
Frequently Asked Questions (FAQ)
1. What is the difference between a T3 return and a T3 slip?
A T3 return is the complete tax return for a trust.
A T3 slip is issued to each beneficiary to report their share of trust income.
2. Do all family trusts have to file a T3 return?
Under the new CRA trust reporting rules, most family trusts must file, even if no income was earned.
3. What is a bare trust, and do I have to file for it?
A bare trust exists when someone holds property on behalf of another person.
With the CRA’s updated reporting rules, most bare trusts now require a T3 filing.
4. What happens if I don’t file a T3 return?
Penalties can reach $2,500 or more – particularly under the strengthened CRA rules.
5. How to file a T3 return – can I do it myself?
You can, but trust tax rules are complex. If the trust has income, beneficiaries, or holds assets, working with a CPA is highly recommended to avoid mistakes.
Final Thoughts
T3 trust returns used to fly under the radar… but not anymore.
With the expanded CRA trust reporting rules (including upcoming 2025 considerations), more trusts – and trustees – are now in the compliance spotlight.
If you’re unsure whether you need to file a Canada Revenue Agency T3 trust return, or you want professional help getting it done correctly, we can help.
At Swain CPA, we work with clients across Halifax, Bridgewater, and Nova Scotia to ensure compliance, minimize penalties, and provide clear, practical trust advice.
Need help with your T3 trust return or trust planning? Let’s go through your situation – no surprises, just clear CPA guidance.








