Adding someone to a property title in Ontario takes one registration and about a week. The consequences last considerably longer. The transfer carries legal fees, and it can also trigger land transfer tax, create a capital gains bill, breach your mortgage, and expose half your home to someone else’s divorce or creditors.

Most people ask us what a property title change costs. The better question is what it sets in motion. This guide walks through both.

Three questions decide everything

Before anyone looks at a property title form, three answers shape the whole transaction.

  • Who goes on the property title, or comes off it? A spouse sits in a different tax position from an adult child, a sibling or a friend.
  • Is there a mortgage? This single fact determines whether you pay land transfer tax or nothing at all.
  • Does money change hands? Any payment becomes consideration, and consideration attracts tax.

Land transfer tax: the mortgage catches people out

Ontario charges land transfer tax on the value of the consideration, not on the value of the property. Gift your daughter half of a mortgage-free house and the consideration is nil, so the tax is nil.

Now add a mortgage. Ontario treats the principal balance outstanding on any mortgage the incoming owner assumes as consideration, and the share they take on title sets how much of that balance they assume. Transfer half the property and they assume half the principal balance. Transfer a third and they assume a third.

Put your daughter on title to half a home carrying a $600,000 mortgage, and she assumes $300,000 of debt. The province taxes her on that $300,000 even though she paid you nothing.

Here are the current provincial rates.

Ontario land transfer tax rates on the value of the consideration
Value of considerationRate
Up to $55,0000.5%
$55,000 to $250,0001.0%
$250,000 to $400,0001.5%
Over $400,0002.0%
Over $2,000,000, land with one or two single family residences2.5%

On that $300,000 of assumed debt, your daughter owes roughly $2,975 in provincial land transfer tax. A Toronto property attracts the municipal land transfer tax as well, which broadly mirrors the provincial bands, so the figure roughly doubles to around $5,950.

Paying the mortgage out afterwards does not undo any of this. The tax follows the position at the time of the transfer, so once your daughter goes on title to a property carrying that $600,000 mortgage, the $300,000 of consideration stays in play even if the mortgage gets discharged the following month.

Only a transfer between spouses escapes these two taxes. No other relationship carries an exemption, so a parent, a child, a sibling or a friend pays both.

Nobody expects a tax bill on a gift. This is the most common unpleasant surprise we see.

Couple reviewing property title documents and a laptop at a kitchen table in Ontario
Most title changes start as a kitchen table conversation. The tax consequences arrive later.

The spousal exemption

Spouses get a meaningful break. Ontario exempts transfers between spouses made for natural love and affection, provided no money passes between them, or the only consideration is the assumption of a mortgage. That second clause matters enormously, because it removes the mortgage trap entirely for spousal transfers. Toronto applies the same exemption to its municipal land transfer tax, so a spousal transfer in the city escapes both charges.

Ontario defines a spouse broadly here. Two people qualify if they married each other, or if they cohabited for at least three years, or if they live in a relationship of some permanence and are the natural or adoptive parents of a child.

Former spouses also qualify where the transfer follows a written separation agreement under which the parties agreed to live separate and apart. Money paid under that agreement does not attract land transfer tax.

The exemption stops at spouses. It does not extend to parents, children or siblings, and no other exemption takes its place for them, which surprises almost everyone who asks us about it.

You may be triggering capital gains

Giving away part of your home counts as a disposition for income tax purposes. The Canada Revenue Agency treats it as though you sold that share at fair market value on the day you transferred it, whether or not anyone paid you.

If the property has been your principal residence throughout, the principal residence exemption usually shelters that gain and you pay nothing. The problem arrives later.

Put your son on title to your home while he lives in his own house, and his half of your property is not his principal residence. Every dollar of growth on that half, from the day you added him until the day the house sells, becomes a taxable capital gain for him. Over a decade in a rising market, that figure gets large.

A child who already owns a second property is the clearest example of why this goes wrong. They can designate only one property as their principal residence for any given year, and they will almost certainly designate their own home. Your property sits outside that shelter for their share, so when it eventually sells, they pay capital gains tax on the full growth in fair market value of that share from the day you added them. Adding a child to title is not estate planning. It frequently works against the family it was meant to help.

Transfers between spouses work differently again, rolling over at your original cost rather than at market value, with income and gains generally attributed back to you. Speak to your accountant before you register anything. We flag the issue; your accountant quantifies it.

Your lender has to agree

Almost every mortgage contains a clause prohibiting you from changing ownership without the lender’s written consent. Register a transfer without asking and you breach the mortgage, which in principle allows the lender to call the loan.

In practice lenders rarely do that, but they do refuse consent, and they refuse often enough to derail a closing. Lenders also frequently require the incoming owner to qualify and to sign on to the mortgage, and some treat the change as a refinance with its own fees and a fresh approval.

Ask your lender first. A refusal discovered in week one costs you an email. A refusal discovered in week four costs you the transaction.

Ontario parcel register displayed on a monitor beside printed title documents and a pen
The parcel register shows exactly how title is held, and whether anyone has registered against it.

Joint tenancy or tenants in common

Once you decide to add someone, you choose how the two of you hold the property together. The choice determines what happens when one of you dies.

How the two forms of co-ownership differ in Ontario
Joint tenancyTenants in common
On deathYour share passes automatically to the survivorYour share passes under your will
ProbateGenerally avoided for that propertyUsually required
SharesEqual by definitionCan be unequal, such as 70/30
Selling your share aloneNot without severing the joint tenancyPermitted
Typical useSpouses and long-term partnersBusiness partners, blended families, unequal contributions

Couples buying together usually choose joint tenancy. Anyone contributing unequal amounts, or wanting their share to go to their own children rather than to a co-owner, usually wants tenants in common. People register the wrong one easily, and families then discover the error after a death, when correcting it costs real money.

Adding an adult child to avoid probate usually backfires

This is the single most common reason people come to us wanting a title change, and it is the one we most often advise against.

The logic looks sound. Ontario charges Estate Administration Tax at $15 per $1,000 of estate value above $50,000. Put the house in joint tenancy with your daughter, and it passes to her outside the estate, so the tax disappears. On a $900,000 home that saves $13,500 where the rest of the estate already exceeds $50,000, or $12,750 where the home is the only asset.

Now count what you have taken on.

  • Capital gains. Her half stops being sheltered by your principal residence exemption from the day you add her, and if she already owns her own home she cannot shelter it either. Ten years of growth on half a home routinely exceeds the probate tax you avoided.
  • Her divorce becomes your problem. Her interest in your home forms part of her net family property.
  • Her creditors become your problem. A judgment against her can attach to your home.
  • You lose control. You cannot sell, refinance or mortgage without her signature. If she refuses, or becomes incapable, you are stuck.
  • Your other children may litigate. Courts regularly examine whether a parent intended a true gift or merely a convenience, and the resulting disputes cost far more than probate ever would.

Sometimes the arrangement genuinely fits, usually where one child already lives in the home and the family agrees on the outcome. Far more often, a properly drafted will and a conversation about probate planning achieves the same goal without handing away half your house. We would rather talk you through both before you choose.

Adult daughter and her father discussing property and estate documents at a dining table
Adding a child to title to avoid probate transfers more than people expect.

Removing someone after a separation

Taking a name off title follows the same mechanics in reverse, with two additions.

The departing owner must sign. Nobody can remove a co-owner unilaterally, and where one party refuses, the matter becomes a court application rather than a registration.

The lender must also release the departing owner from the mortgage covenant. Coming off title does not come off the debt. We regularly meet people who left a property years ago and remain liable on a mortgage they forgot about, discovering it only when their own purchase falls through.

Where a separation agreement governs the transfer, the land transfer tax exemption for former spouses generally applies, which makes getting the agreement right before the transfer worth the effort.

You may each need your own lawyer

A title transfer is not a formality and it is not free. It carries legal fees, and depending on who sits on each side of it, those fees may double.

One lawyer cannot act for both parties where their interests conflict. A parent handing half a home to an adult child, an owner giving up an interest for nothing, an elderly client adding a relative to title: in each of these the two sides want different things, and the rules of professional conduct call for separate advice.

Sometimes that means independent legal advice, where a second lawyer meets one party on their own, explains what they are signing, and certifies that they understood it and signed freely. Sometimes it means independent legal representation, where the second lawyer acts for that party throughout the transaction.

Which of the two applies turns on the relationship between the transferor and the transferee. We tell you at the outset which one your situation calls for, so a second set of fees does not arrive as a surprise halfway through.

What a property title transfer involves

  1. We search title and pull the parcel register, confirming how you currently hold the property title and what sits registered against it.
  2. You approach your lender for written consent.
  3. We calculate the land transfer tax and confirm whether an exemption applies.
  4. You speak to your accountant about the capital gains position.
  5. Where the relationship calls for it, the other party obtains independent legal advice or their own representation.
  6. We prepare the transfer, you both sign, and we register it electronically.
  7. We update the title insurance and confirm the new ownership.

A straightforward transfer completes in one to two weeks once the lender responds. The lender is almost always the slow part.

Our fees for a title transfer sit well below a purchase, and the disbursements work the same way as any other registration. You can request a quote online and we will set out the whole cost before you commit, including whether a second lawyer needs to be involved.

Common questions

Can I add my spouse to title without paying land transfer tax?

Usually yes. Ontario exempts transfers between spouses for natural love and affection where no money passes, or where the only consideration is the assumption of a mortgage, and Toronto applies the same exemption to its municipal land transfer tax. The exemption covers married spouses, partners who cohabited for at least three years, and partners in a relationship of some permanence who share a child.

Does a mortgage affect land transfer tax on a title transfer?

Yes, and this is where most people get caught. Ontario treats the principal balance outstanding on an assumed mortgage as consideration, in proportion to the share transferred. Transfer half a property carrying a $600,000 mortgage and the incoming owner assumes $300,000, which attracts provincial land transfer tax and, on a Toronto property, municipal land transfer tax as well. Paying the mortgage out afterwards does not remove that consideration, because the tax follows the position at the time of the transfer. Only transfers between spouses escape both.

Does adding someone to title avoid probate?

Joint tenancy generally keeps that property outside the estate, so Estate Administration Tax does not apply to it. The saving often costs more than it gains once capital gains, family law exposure and loss of control enter the picture. Adding an adult child to title is not estate planning, and it works against the family more often than for it.

Do I need a second lawyer to transfer title to a family member?

Often yes. Where the interests of the two parties conflict, one lawyer cannot act for both, and the other party needs independent legal advice or their own representation. Which one applies depends on the relationship between the transferor and the transferee, and it means a second set of fees. We tell you at the outset which your situation calls for.

Do I need my lender’s permission to change title?

Almost certainly. Most mortgages prohibit a change of ownership without written consent, and lenders frequently require the incoming owner to qualify and sign the mortgage. Ask before you start.

How long does a property title transfer take in Ontario?

One to two weeks for a straightforward property title transfer, once the lender gives consent. Lender turnaround drives the timeline more than anything a lawyer does.

Can I remove my ex-partner from title without their signature?

No. The departing owner must sign the transfer. Where they refuse, the remaining owner applies to the court. Your lender must also release them from the mortgage, which is a separate step from coming off title.

Talk it through before you register

Changing a property title in Ontario is quick to do and difficult to undo. The registration takes minutes. The tax, family law and control consequences follow you for years.

Wannes Law handles title transfers across Ontario from our Toronto office. We will tell you what the transfer triggers before you commit to it, and we will say so plainly if we think you should leave title alone. Our real estate practice and our wills and estates practice sit side by side for exactly this reason, because most title questions are really estate questions wearing a different hat.

If the transfer you are considering follows a death rather than a plan, read our guide to transferring a property after someone dies in Ontario instead.

Book a free consultation or request a quote.


This article provides general information about Ontario law and does not constitute legal advice. Land transfer tax, income tax and family law outcomes turn on facts specific to each situation. Speak to a lawyer and an accountant before transferring any interest in property.

Sources: Calculating Land Transfer Tax, Government of Ontario · Estate Administration Tax, Government of Ontario · Land Titles Act, R.S.O. 1990