The Final T1 Income Tax Return for a Deceased Person in Canada
The final T1 tax return is one of the most important executor responsibilities. It's also often the most significant tax event in a Canadian's lifetime due to the deemed disposition at death.
What the final T1 covers
Income period: January 1 of year of death to date of death.
Income included:
- Employment income (T4 to date of death)
- Investment income (interest, dividends, capital gains)
- Self-employment income
- CPP and OAS to date of death
- Pension income
- Rental income
- Other income
Plus deemed disposition:
- All capital property deemed sold at fair market value at date of death
- Capital gains realized
- 50% inclusion rate (currently)[4]
- Significant tax event for many
Due dates
General rule:
- April 30 of year following death (for death January through October)
- June 15 of year following death (for self-employed deceased)
Late-year death:
- For death November 1 through December 31: 6 months after death
Examples:
| Death date | Final T1 due |
|---|---|
| February 15, 2026 | April 30, 2027 |
| June 30, 2026 | April 30, 2027 |
| November 30, 2026 | May 30, 2027 (6 months) |
| December 15, 2026 | June 15, 2027 (6 months) |
Self-employed deceased gets June 15 deadline instead of April 30.
The deemed disposition — most significant tax event
When a Canadian dies, all capital property is deemed sold at fair market value at the date of death. This often triggers substantial capital gains tax.
Property subject to deemed disposition:
- Real estate (except principal residence)
- Investments (stocks, mutual funds, ETFs in non-registered accounts)
- Business interests
- Specific personal property of value (collections, art)
- Specific other capital property
Calculation:
- Fair market value at date of death
- Less adjusted cost base (original cost plus improvements)
- = Capital gain
- 50% inclusion rate
- Taxed at marginal rate
Significant for:
- Long-held real estate (decades of appreciation)
- Substantial investment portfolios
- Family business interests
- Cottage properties (no principal residence exemption typically)
Spousal rollover
Capital property passing to a Canadian-resident spouse (or qualifying spousal trust) rolls over tax-deferred.
How it works:
- Property transfers at deceased's adjusted cost base (not fair market value)
- No capital gain realized at death
- Spouse takes over the cost base
- Tax deferred until spouse later disposes or dies
Requirements:
- Property passes to Canadian-resident spouse
- Or to qualifying spousal trust (specific Income Tax Act requirements)
- Specific within 36 months of death
Strategic value:
- Significant tax deferral
- Spouse can hold property longer to defer further
- Specific planning for cottage, investments, business interests
Principal residence exemption
Most Canadians' family home qualifies for the Principal Residence Exemption (PRE) — capital gains on the home are exempt from tax.
For deceased's home:
- PRE typically applies for years of ownership when designated
- Specific calculation and election
- Multiple homes (cottage) require designation choice
- Specific to circumstances
See principal residence exemption at death for details.
RRSP and RRIF at death
With spouse as designated beneficiary:
- Rollover to spouse's RRSP/RRIF tax-deferred
- No immediate tax
Without spouse as designated beneficiary (or no beneficiary, to estate):
- Full value of RRSP/RRIF added to deceased's final return
- Taxed at marginal rate (often 30-50%+ tax cost)
Significant tax impact for substantial RRSP/RRIF balances without spouse designation.
Optional separate returns
Multiple returns can be filed for the deceased, each claiming its own basic personal amount — can reduce overall tax.
Rights or things return
Specific income types: unpaid commissions, accrued bonuses, specific other amounts payable at death. Can be reported on separate return.
Testamentary trust income return
If estate continues as testamentary trust beyond initial period.
Income from sole proprietorship return
If deceased had sole proprietorship business.
Each separate return:
- Specific basic personal amount
- Specific tax calculation
- Can reduce total tax owed
- Specific to circumstances
Specific tax planning to consider for estates with complexity.
Specific elections
Spousal rollover election — automatic in many cases; specific election possible to opt out for tax planning.
Charitable donation election — donations on the final return offset more than during life (up to 100% of net income vs 75% during life). Strategic for large estates.
Capital gains elections — specific elections for specific situations.
Lifetime Capital Gains Exemption (LCGE) — for qualifying small business shares, farm/fishing property.
Filing the return
Who files
Executor (or estate trustee, administrator). Authority confirmed via:
- Will and probate, or
- Letters of administration
How to file
- Standard T1 form with deceased's information
- "Date of death" indicated
- Specific to circumstances
- Specific software supports
Professional help
For complex estates, accountant strongly recommended. Cost typically $1,000-5,000+ for moderate complexity. Far less than cost of errors.
After filing
- CRA processes return
- Notice of Assessment issued
- Pay any tax owed
- Apply for clearance certificate (Form TX19)
- Wait for clearance (3-6 months)
- Final distribution after clearance
See clearance certificate CRA Canada for next step.
Common errors
Missing the deadline. Late filing penalties significant.
Missing the deemed disposition. Forgetting to calculate capital gains on death.
Missing spousal rollover. Not claiming when applicable.
Not filing T3 estate returns. If estate continues beyond first year, separate T3 returns required.
Incomplete asset valuation. Specific to substantial assets.
No professional help for complex estates. Errors cost more than the accountant.
What we focus on at It's Simple Will
The Life Discovery Kit (post-payment) helps executors and accountants gather the comprehensive financial picture needed for the final return — accounts, assets, beneficiary designations, prior tax history. Reduces preparation time significantly.
Related guides
Citations & sources
- [1]Canada Revenue Agency — Doing Taxes for Someone Who Died — Canada Revenue Agency
- [2]Income Tax Act — Government of Canada / Department of Justice
- [3]CRA — Prepare the final return — Canada Revenue Agency
- [4]CRA Guide T4037 — Capital Gains (50% inclusion rate) — Canada Revenue Agency
Frequently asked questions
When is the final T1 due?
Generally April 30 of year following death (June 15 if deceased was self-employed). For death in November-December, the deadline is 6 months after the date of death. For example — death February 15, 2026 → return due April 30, 2027. Death November 30, 2026 → return due May 30, 2027.
What does it include?
Income from January 1 of year of death to date of death — employment income, investment income, self-employment income, CPP/OAS, other income. Plus capital gains from deemed disposition of capital property at death (all capital property deemed sold at fair market value on date of death).
What's the deemed disposition?
Federal Income Tax Act rule — at death, all capital property is deemed sold at fair market value. Capital gains realized; taxed on final return. 50% inclusion rate; taxed at marginal rate. Often substantial for real estate, investments, business interests held long-term.
Is there a spousal rollover?
Yes. Capital property passing to a Canadian-resident spouse (or qualifying spousal trust) rolls over at the deceased's cost base — no capital gains realized until spouse later disposes or dies. Significant tax-deferral benefit. Applies to specific qualifying property.
Can I file multiple returns?
Yes, in specific circumstances. Optional separate returns for — rights or things (unpaid amounts owed at death); testamentary trust income; sole proprietorship income. Each separate return claims its own basic personal amount — can reduce overall tax.
Who files?
The executor (or estate trustee, administrator). Specific to provincial terminology. Often executor engages an accountant for final return; especially recommended for estates with substantial capital gains, business interests, or complexity.