Tenants in Common vs Joint Tenants: Which Should You Choose?

The two forms of co-ownership

Both forms give every owner the right to possess and use the whole property. The difference is in how the ownership interest is defined, and what happens to it when an owner dies or wants to deal with it.

Joint tenancy: the right of survivorship

Joint tenants do not own shares. Each owner owns the whole of the property, together with the others, as a single indivisible interest. Legally this requires the "four unities" — the same interest, acquired by the same instrument, at the same time, with the same right to possession.

The consequence that matters is the right of survivorship. When one joint tenant dies, their interest is extinguished and the surviving owners simply continue to hold the whole. Nothing passes through the deceased's estate, so:

• The property is not distributed under the will and cannot be gifted to anyone else by will.
• The survivor does not need to wait for probate to deal with the property, only to lodge a notice of death with evidence of the death.
• Creditors of the deceased's estate generally cannot reach the property once survivorship has operated.

Joint tenancy is the default choice for married and de facto couples buying a home, because it delivers the outcome they usually want with the least friction.

Tenants in common: fixed, separate shares

Tenants in common each own a defined share of the property — 50/50, 70/30, or any other split recorded on title. Each share is a separate asset:

• It passes under the owner's will, or under the intestacy rules if there is no will.
• It can be sold, mortgaged or gifted independently, subject to any mortgage or co-ownership agreement.
• It can be held by a company or trust rather than an individual, which is common in investment structures.

Tenants in common is the usual choice where owners contributed unequally, where the owners are not partners in life (business co-owners, friends, siblings, syndicated investors), or where a blended family needs each side's share to pass to their own children.

Side-by-side comparison

	Joint tenants	Tenants in common
Ownership interest	The whole, held together — no shares	Fixed separate shares (any split)
On death	Passes automatically to survivor(s)	Passes under the will or intestacy
Can be left by will?	No	Yes
Unequal contributions	Not reflected on title	Reflected in the recorded shares
Sell or mortgage your interest alone	Severs the joint tenancy	Yes, the share is a separate asset
Probate needed to deal with it	No — notice of death	Yes, for the deceased's share
Typical users	Couples, family home	Investors, business partners, blended families

Which one should you choose?

Choose joint tenancy where you want the property to pass to the co-owner automatically and without administrative delay, and where you are comfortable that it will never form part of your estate.

Choose tenants in common where any of the following apply:

• The owners put in different amounts of money, or will service the loan unequally.
• Either owner has children from a previous relationship who should inherit their share.
• The property is an investment held with people you are not in a relationship with.
• One owner wants to hold their share through a company or family trust for asset protection or tax reasons.
• There is any prospect that one owner will want to exit while the other stays.

Changing from one to the other

A joint tenancy can be severed — converted into a tenancy in common — by lodging the relevant instrument with the land titles office in your state. In most Australian jurisdictions this can be done unilaterally: the other owner is notified, not asked for consent. Severance also happens automatically in some situations, such as one joint tenant transferring their interest to a third party.

Going the other way — from tenants in common to joint tenants — requires a transfer executed by all owners, and needs to be checked against duty and lender requirements first. Any change should be run past your lender, because most mortgages restrict dealings with the title.

Two practical warnings:

• Duty and CGT. Changing shares or tenure can be a dutiable transaction and, for investment property, a CGT event. Get the tax position confirmed before lodging anything.
• Estate plan alignment. Severing a joint tenancy achieves nothing on its own if the will still leaves the property to the co-owner, or if a binding death benefit nomination points somewhere inconsistent.