In California, the difference between tenants in common and joint tenants comes down to what happens when one owner dies and how much flexibility each owner has while alive. Joint tenants hold equal shares and the survivors automatically take a deceased owner’s share, skipping probate. Tenants in common can hold unequal shares, and each person’s share passes through their own will, trust, or the state’s intestacy rules. Married couples have a third option that beats both for tax purposes. The right answer depends on who your co-owners are, whether you want to control who inherits your share, and how the property fits into your estate plan.
Joint Tenancy in California
Joint tenancy gives every owner an identical share. Two owners each hold 50%, three each hold a third, and so on. California Civil Code section 683 requires the deed to expressly declare the ownership as a joint tenancy, and every owner must receive their interest through the same document at the same time.1California Legislative Information. California Code Civil Code 683 Under California case law, the arrangement rests on four unities: owners take at the same time, through the same instrument, in equal shares, with equal rights to use the whole property.2OpenCasebook. Riddle v. Harmon
The defining feature is the right of survivorship. When one joint tenant dies, their share disappears from their estate and passes automatically to the surviving owners by operation of law. The property never enters probate, and the deceased owner cannot redirect their share through a will or trust. Avoiding probate is the whole reason most people choose joint tenancy. The trade-off is rigidity: shares must be equal, and you give up any say over who inherits your portion.
Tenancy in Common in California
Tenancy in common is the default. If a deed transfers property to two or more people without specifying the type of ownership, California law treats them as tenants in common.3California Legislative Information. California Code Civil Code 686 Shares can be unequal. One owner might hold 70% and another 30%, and the percentages can reflect what each person paid or whatever split the parties agree on.
There is no right of survivorship. When a tenant in common dies, their share becomes part of their estate and passes to their heirs or beneficiaries under their will, trust, or California’s intestacy rules. Every owner still has the right to use the entire property regardless of their percentage, but the percentage governs how sale proceeds get split. This setup fits business partners, unmarried couples, friends, or family members who want their investment protected for their own heirs rather than absorbed by the other co-owners.
Each tenant in common has the right to possess the whole property, not just a portion proportional to their share. If one co-owner locks another out or physically blocks access, that conduct is called ouster and gives the excluded owner grounds for a legal claim.4Legal Information Institute. Ouster The same protection applies to joint tenants.
The Practical Differences That Drive the Choice
What Happens at Death
This is the biggest split. A joint tenant cannot leave their share to a child, a sibling, or anyone else through a will. The share goes to the surviving joint tenants automatically. A tenant in common can direct their share to whoever they choose. If you are buying with a spouse and want the survivor to keep the home outright without probate, joint tenancy handles that. If you are buying with a sibling and each of you wants your own children to inherit your half, tenancy in common is the right structure.
Whether Shares Can Be Unequal
Joint tenancy requires equal shares. If one buyer is contributing 80% of the purchase price and the other 20%, joint tenancy will not reflect that. Tenancy in common will.
Selling, Gifting, or Borrowing Against Your Share
A tenant in common can sell, gift, or use their share as loan collateral without permission from the other owners. The buyer steps into the seller’s position and holds the same percentage under the same tenancy-in-common arrangement. This independence gives each owner real financial flexibility, but it also means a stranger could become your co-owner without your consent.
Joint tenancy is more restrictive in a different way. If a joint tenant transfers their share to a third party, the transfer destroys the joint tenancy for that share. The new owner holds as a tenant in common, while any remaining original joint tenants continue to hold joint tenancy among themselves.5California Legislative Information. California Code Civil Code 683.2 For example, if three joint tenants each hold a one-third share and one sells to an outsider, the two original owners still share a right of survivorship between themselves but are tenants in common with the new owner.
Creditor Claims
A judgment lien against a tenant in common attaches to that person’s share and stays attached even if the debtor transfers or bequeaths the interest. A creditor can eventually force a sale of the debtor’s share through a partition action, which pulls the other owners into expensive litigation even though they owe nothing.
Joint tenancy has a quirk that can favor the survivor. A judgment lien attaches to the debtor’s share during their lifetime, but if the debtor dies first, the right of survivorship extinguishes their interest entirely. The surviving joint tenant takes full ownership free of the deceased owner’s judgment lien. If the debtor is the surviving owner, the lien remains and can be enforced against the entire property.
Forcing a Sale When Owners Disagree
This is one place the two forms behave the same. Any co-owner, joint tenant or tenant in common, can file a partition action to force a division or sale of the property. California Code of Civil Procedure section 872.210 gives this right to any owner of a concurrent estate, regardless of share size.6California Legislative Information. California Code of Civil Procedure 872.210 Under the Partition of Real Property Act, the other co-owners have 45 days after receiving court notice to buy out the requesting owner’s share at fair market value.7California Legislative Information. California Code of Civil Procedure 874.317 Neither ownership form protects you from a co-owner who wants out.
Community Property With Right of Survivorship: The Married-Couple Option
Married couples in California have a third option that usually beats both joint tenancy and tenancy in common. Under Civil Code section 682.1, spouses can hold title as community property with right of survivorship. Like joint tenancy, the surviving spouse automatically receives the deceased spouse’s share without probate. Unlike joint tenancy, the property keeps its community property character, which matters at tax time.8California Legislative Information. California Civil Code 682.1
The tax advantage is significant. When one spouse dies holding property as joint tenants, only the deceased spouse’s half receives a stepped-up basis to current market value. The surviving spouse’s half keeps its original purchase price as the basis. With community property, both halves receive a full step-up to fair market value at the date of death. On a home purchased decades ago for $200,000 that is now worth $1.2 million, joint tenancy gives the survivor a blended basis of $700,000, while community property gives a full $1.2 million basis. That $500,000 difference is real money at capital gains tax rates. The deed must expressly declare community property with right of survivorship, and both spouses must accept the designation in writing on the document.
Property Tax Reassessment When You Change Owners
Changing how title is held can trigger a Proposition 13 reassessment. Adding a new person to a deed as a tenant in common is treated as a change in ownership for the transferred portion, and the county assessor will reassess that share at current market value.9California Board of Equalization. Frequently Asked Questions Change in Ownership On property that has appreciated significantly, the tax increase can be steep.
Several transfers are excluded from reassessment:
- Transfers between spouses or registered domestic partners, including adding a spouse to the deed, transfers at death, and transfers in a divorce.10California Legislative Information. California Code Revenue and Taxation Code 62
- Changes in the method of holding title, such as converting from joint tenancy to tenancy in common, when no one’s proportional share changes.10California Legislative Information. California Code Revenue and Taxation Code 62
- Transfers into revocable trusts where the transferor remains the beneficiary.
- Death of a co-owner who shared the home, if both owners were on title and lived in the property as their primary residence for at least one year before the death and the survivor takes 100% ownership.9California Board of Equalization. Frequently Asked Questions Change in Ownership
The co-owner death exclusion has strict requirements. Both owners must have been on title and living in the home for the full year before the death, and the survivor must sign an affidavit confirming continuous residence. Miss any of those conditions and the transferred share gets reassessed.
Gift Tax When You Add Someone to Your Deed
Adding someone to your deed for less than fair market value is a gift under federal tax rules. If the value of the transferred interest exceeds the annual gift tax exclusion ($19,000 per recipient for 2026), the person making the gift must file IRS Form 709 even if no tax is actually owed.11Internal Revenue Service. Gifts and Inheritances On a $950,000 home where you add someone as a 50% tenant in common, you have made a $475,000 gift. The excess above the annual exclusion counts against your lifetime gift and estate tax exemption. Not filing the return does not eliminate the obligation, and the IRS statute of limitations does not start running until the return is filed.
Switching From One Form to the Other
Switching between joint tenancy and tenancy in common requires recording a new deed. California Civil Code section 683.2 lets a joint tenant sever the joint tenancy unilaterally, without the other owners’ agreement, by executing a written instrument and recording it with the county.5California Legislative Information. California Code Civil Code 683.2 The severance can be a grant deed, a quitclaim deed, or a written declaration of intent to sever.
Timing matters. The severance does not terminate the right of survivorship unless the document is recorded in the county where the property sits before the severing owner dies. One narrow exception: if the document is notarized within three days before the owner’s death, it can be recorded up to seven days after death and still be valid.5California Legislative Information. California Code Civil Code 683.2 Deathbed severances are legally possible but practically risky. If you want to sever, do it while everyone is healthy.
The deed must name all grantors and grantees, include a legal description of the property, and spell out the new vesting. Every signer’s signature must be acknowledged by a notary public before recording.12California Legislative Information. California Code Government Code 27287 Along with the deed, you file a Preliminary Change of Ownership Report so the assessor can decide whether the transfer triggers reassessment.13California Board of Equalization. Preliminary Change of Ownership Report Recording the deed itself is inexpensive; changing how title is held among the same owners in the same proportions is generally exempt from the documentary transfer tax.14California Legislative Information. California Code Revenue and Taxation Code 11911