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How Do Multiple Wills Reduce Estate Administration Tax in Ontario?

Learn how a certificate limited to one will affects Estate Administration Tax in Ontario, which assets count, and the filing and assessment risks.

Wills & Estates5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • Estate Administration Tax is charged only when an estate certificate is applied for and issued, so it is tied to the certificate you seek.
  • If the court issues a certificate limited to the assets in a specific will, only the assets in that will count toward the estate's value.
  • Because the Ministry of Finance can reassess, you need to value assets carefully, file the Estate Information Return on time and keep supporting records.

You are an executor, and the deceased left more than one will, often a primary will and a secondary will. You want to know how that arrangement can affect the tax on probate, which assets belong where, and what can go wrong if only one will is probated.

This article explains the general rules for Estate Administration Tax in Ontario and how a limited certificate fits in. Multiple wills need careful drafting and court steps, so a lawyer should confirm how they apply to your estate before you rely on them.

How the tax connects to the certificate

Ontario's Estate Administration Tax is charged only when an estate certificate (probate) is applied for and issued. If no certificate is applied for or issued, no tax is owed.

The tax is paid as a deposit when the probate application is filed with the court. Once the certificate is issued, the deposit becomes the Estate Administration Tax. The estate pays it, not you personally as estate representative.

That link is why multiple wills matter. The tax is worked out on the value of the assets covered by the certificate, so what the certificate covers affects the tax.

Which assets count when the certificate is limited

If the court issues a certificate limited to the assets in a specific will, only the assets in that will count toward the estate's value. Assets in the other will are not part of that calculation.

Which assets can safely sit in which will depends on the wording of the wills and how the assets are held, so confirm this with a lawyer.

Asset typeCounts toward the estate's value?
Assets in the will the certificate is limited toYes
Assets only in the other will, where the certificate is limitedNo
Assets held jointly that pass automatically to the survivorNo
Insurance paid to a named beneficiaryNo
RRSPs, RRIFs and TFSAs with a beneficiary designationNo
RRSPs, RRIFs and TFSAs where the estate is the beneficiaryYes

Real estate outside Ontario is also left out of the estate's value. A tenant in common's share does not pass automatically, so it counts if probate is sought.

How the tax is calculated on what is left

For certificates applied for on or after January 1, 2020, no tax is payable on an estate worth $50,000 or less. Above $50,000, the tax is $15 for every $1,000 (or part thereof) of value over $50,000. The estate's value is rounded up to the nearest thousand dollars.

Assets are valued at fair market value at the time of death. Ontario real estate is valued at its appraised value on the date of death, less encumbrances such as mortgages or liens. Only encumbrances on real property can be deducted. Funeral expenses, lawyer's fees, credit card debt and similar items do not reduce the value.

Risks when only one will is probated

Probating only one will does not remove your reporting duties. The estate representative must file an Estate Information Return with the Ministry of Finance within 180 calendar days after the certificate is issued. This is required even when the estate is worth $50,000 or less and no tax is owed.

The main audit risks are these.

The records supporting the return must be kept for four years at the representative's principal place of business or residence. If the Ministry assesses additional tax, you can dispute it by filing a Notice of Objection within 180 days from the day the Notice of Assessment was issued.

What to do next

An accountant or lawyer can also help you decide how the return should describe assets that sit outside the certificate.

Frequently asked questions

Do I pay tax on assets in the secondary will?

If the court issues a certificate limited to the assets in a specific will, only the assets in that will count toward the estate's value. Whether the other will's assets can be dealt with without a certificate depends on the facts, so ask a lawyer.

Do I still file an Estate Information Return?

Yes. The return is due within 180 calendar days after the certificate is issued. It is required even if no tax is owed because the estate is worth $50,000 or less.

How long can the Ministry of Finance reassess the tax?

Generally within four years after the day the tax was due. If a return was late or a misrepresentation was made, it can reassess at any time.

Can I be personally liable for the tax?

The tax is paid by the estate, not personally by the estate representative. However, a representative who fails to file the return or makes false or misleading statements may face fines or imprisonment.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article 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.

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