Every tax duty an Ontario estate trustee must handle — and the one step that protects you personally.
Who this is for & what you'll get. You've been named executor (in Ontario, an estate trustee) and the estate's taxes are now your responsibility. This checklist walks through the deceased's final return, the tax that arises at death, the estate's own returns, probate tax, and the clearance certificate that shields you from personal liability — with warnings at the spots that catch people.
⚖️ This is a general guide, not legal advice. It can't account for your specific situation. Use it to get oriented, then confirm the details with a licensed Ontario lawyer.
📌 Treadstone is not your accountant. Estate tax returns involve real calculations and elections. Use this list to make sure nothing is missed, then prepare the returns with a tax professional and confirm filing requirements and deadlines with the CRA.
⚠️ The single most important line in this guide: Do not distribute the estate until you hold a CRA clearance certificate. Pay the wrong people first and you can be personally liable for unpaid tax. (See the final section.)
How to use this
Work top to bottom. Some items only apply to certain estates — skip what doesn't fit, but read every warning. Where you see "verify," confirm the current rule, form, or amount with the CRA, because tax rules and deadlines change.
📎 For the non-tax mechanics of estate administration — applying for probate, gathering assets, dealing with beneficiaries — see Treadstone's wills & estates guides. This checklist covers the tax side.
Part 1 — Get organized first
- Confirm your authority to act (the will names you; you may need a Certificate of Appointment of Estate Trustee — Ontario's probate grant).
- Why it matters: The CRA and financial institutions will ask for proof before releasing information or funds.
- Register as the legal representative with the CRA so you can access the deceased's tax information and correspond on the estate's behalf.
- Locate prior tax returns and slips (T4, T4A, T5, T3, pension and investment statements).
- Build an inventory of assets and their values as at the date of death.
- Why it matters: Date-of-death values drive the capital-gains math below.
- List all accounts: bank, non-registered investments, RRSP/RRIF, TFSA, real estate, business interests, vehicles, collectibles.
- Find beneficiary designations on registered plans and insurance (these can pass outside the will and change the tax picture).
Part 2 — The deceased's final (terminal) T1 return
- File the deceased's final personal income tax return — often called the terminal return — reporting income from January 1 of the year of death up to the date of death.
- Confirm the filing deadline. The terminal-return deadline depends on the date of death and can differ from a normal year (verify the current deadline with the CRA).
- Claim available credits and deductions the deceased was entitled to for the period.
- Report income earned but not yet received at death, as required.
💡 Tip: Don't assume the ordinary April deadline applies. The terminal return has its own timing rules tied to when the person died. Confirm yours so you don't file late.
The deemed disposition at death (the big one)
- Apply the "deemed disposition" rule. For tax purposes, the deceased is generally treated as having sold their capital property immediately before death at fair market value — even though nothing was actually sold.
- Why it matters: This can trigger capital gains on non-registered assets (a cottage, a stock portfolio, a rental property), and those gains are reported on the terminal return.
- Check the spousal rollover. Property passing to a surviving spouse or common-law partner (or a qualifying spousal trust) can often transfer on a tax-deferred basis, deferring the gain. Confirm whether it applies.
- Apply the principal residence interaction. A gain on the deceased's principal residence may be reduced or eliminated by the principal residence exemption. Where there's more than one property, planning the designation matters.
- Why it matters: Getting the principal-residence treatment right can save the estate a great deal of tax.
⚠️ Watch out: "Deemed disposition" surprises families because no money changed hands, yet tax can be owing. Identify which assets carry unrealized gains before you assume the estate is simple.
Registered plans collapse into income
- Account for RRSPs and RRIFs. On death, the value of an RRSP or RRIF is generally brought into income on the terminal return — unless it qualifies to roll to a spouse, a financially dependent child or grandchild, or another permitted beneficiary.
- Why it matters: A large RRSP/RRIF can create a significant tax bill on the final return. Don't distribute as if that money is all the estate's to give away.
- Check TFSA treatment (generally different from RRSP/RRIF — confirm the rules for the successor holder or beneficiary).
Part 3 — Optional and special returns
The law allows certain income to be reported on separate optional returns, which can reduce total tax by accessing additional credits or lower brackets.
- Consider a "rights or things" return for amounts the deceased was entitled to at death but had not yet received (e.g., certain unpaid amounts).
- Consider other optional returns that may apply to the deceased's circumstances.
- Why it matters: Used correctly, optional returns can lower the estate's overall tax. This is a place where professional advice often pays for itself.
💡 Tip: Optional returns are opportunities, not obligations. Ask your tax professional whether filing one benefits this estate. Verify availability and conditions with the CRA.
Part 4 — The estate's own returns (after death)
The estate is a separate taxpayer once the person dies. Income earned after the date of death (interest, dividends, rent, capital gains on later sales) belongs to the estate, not the terminal return.
- File a T3 Trust Income Tax and Information Return for the estate to report income earned after death while assets are held in the estate.
- Determine whether the estate qualifies as a Graduated Rate Estate (GRE). A GRE can access graduated tax rates for a limited period after death (verify the current qualifying period and conditions with the CRA).
- Why it matters: GRE status can reduce tax and affect timing — it's worth confirming early.
- Issue T3 slips to beneficiaries for income paid or payable to them, as required.
- Track the year-end and filing deadline for each estate return.
⚠️ Watch out: Don't merge "the person's" income with "the estate's" income. Pre-death income goes on the terminal T1; post-death income goes on the estate T3. Mixing them up causes reassessments.
Part 5 — Ontario Estate Administration Tax (probate)
- Determine whether the estate must apply for probate (a Certificate of Appointment of Estate Trustee).
- Calculate and pay the Ontario Estate Administration Tax (commonly called probate tax), which is based on the value of the estate that passes through probate.
- Why it matters: This is an Ontario tax distinct from federal income tax; it's tied to the estate's value, not its income. Confirm the current rate and any value thresholds with the Ministry of Finance / ServiceOntario.
- File the required Estate Information Return with the province within the prescribed time after the certificate is issued (verify the current deadline).
- Why it matters: Late or inaccurate filing can carry consequences for you as estate trustee.
📎 The probate process itself — what to file, valuing assets, the court application — is covered in Treadstone's wills & estates guides.
Part 6 — The clearance certificate (do this before you distribute)
This is the step that protects you.
- Apply to the CRA for a clearance certificate confirming that all amounts the deceased and the estate owe (tax, interest, penalties) have been paid or secured.
- Wait for the certificate to be issued before distributing the remaining estate to beneficiaries.
⚠️ Personal liability warning. If you distribute the estate's property without a clearance certificate and it turns out tax was owing, you can be held personally responsible for amounts the CRA can no longer collect from the estate. Beneficiaries will have the money; you'll have the bill. Do not skip this.
💡 Practical sequence: File all returns → pay (or hold back for) known liabilities → obtain the clearance certificate → then distribute and close the estate. It's common to keep a holdback until the certificate arrives.
Deadlines at a glance
| Item | Timing (confirm with the CRA / province) |
|---|---|
| Terminal T1 (final personal return) | Depends on date of death — verify |
| Estate T3 return(s) | Based on the estate's year-end — verify |
| Ontario Estate Information Return | Within the prescribed period after the certificate — verify |
| Clearance certificate | Apply after returns filed and liabilities settled — before distributing |
⏰ Every date above shifts with the facts and changes over time. Treat this table as a prompt to go confirm, not as the final word.
What's next
You don't have to carry this alone. The cleanest path is: get organized, file the terminal return correctly (mind the deemed disposition and registered plans), handle the estate's own T3 returns, deal with Ontario probate tax, and obtain the clearance certificate before you distribute. A lawyer and a tax professional working together keep you compliant — and keep you off the hook personally.
How Treadstone Law can help
Settling an estate is a heavy responsibility, and the tax steps are where well-meaning executors get exposed. We make the path clear.
- Flat-fee clarity — know the cost before we begin.
- Online intake — start a file and send us the will and asset list securely.
- All of Ontario, virtually — based in Mississauga, serving the whole province.
We can guide you through your duties as estate trustee, coordinate the terminal and estate returns with your accountant, manage the Ontario probate filings, and make sure you don't distribute before the clearance certificate is in hand.
📞 1-844-900-1070 · Learn more at treadstonelaw.ca/tax · See flat fees at treadstonelaw.ca/pricing · Start now at treadstonelaw.ca/start-file
This is not legal advice
This guide is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.