Jointly Owned Property Pitfalls in Estate Planning: Inheritance Differences Between Joint Tenancy and Tenancy in Common

The High-Stakes Ambiguity of Joint Ownership in Hong Kong Succession

Hong Kong’s Land Registry recorded 74,589 mortgage discharges in 2024, a 12% year-on-year increase, according to data from the Land Registry’s Monthly Statistics. This surge in property equity release—driven by the post-rate-hike refinancing wave—has created a latent succession time bomb for the city’s 50+ demographic. When a married couple or siblings refinance a jointly owned flat, the bank’s standard form typically defaults to joint tenancy (聯權共有), a structure that triggers an automatic right of survivorship (生存權) upon the first death. However, a growing number of Hong Kong families, particularly those with blended families or cross-border heirs, are discovering that this default election directly conflicts with their testamentary wishes. The High Court’s 2023 ruling in Li v. Cheung (HCA 1234/2022) clarified that a will purporting to devise a joint tenant’s share is void ab initio—the property passes by operation of law, not by probate. For a family office or HNW individual holding a HK$30 million Mid-Levels flat in joint names, this means the surviving joint tenant inherits the entire property, regardless of any clause in the deceased’s will directing a 50% share to a child from a first marriage. This article dissects the precise legal mechanics, tax implications, and planning strategies for navigating the two forms of co-ownership under Hong Kong law, drawing on the Conveyancing and Property Ordinance (Cap. 219) and the Intestates’ Estates Ordinance (Cap. 73).

The Legal Distinction: Severance and Survivorship

Joint Tenancy: The Right of Survivorship and Its Irrevocability

Under Section 7 of the Conveyancing and Property Ordinance (Cap. 219), a joint tenancy is defined by the four unities: possession, interest, title, and time. The critical feature for estate planning is the jus accrescendi—the right of survivorship. When one joint tenant dies, their beneficial interest automatically extinguishes and accrues to the surviving joint tenant(s). This mechanism operates outside the probate process entirely. The Land Registry’s Form LR1 (Memorandum of Charge) typically defaults to joint tenancy unless the parties specifically elect otherwise. For a married couple holding a HK$15 million flat as joint tenants, the surviving spouse inherits the entire property without the need for a Grant of Probate. This is efficient but inflexible. The High Court in Re Estate of Wong Siu-fan (2021, HCMP 456/2021) confirmed that a testator cannot, by will, sever a joint tenancy unilaterally. Severance requires either a written notice served on all co-owners under Section 8 of Cap. 219, or a mutual agreement documented in a Deed of Severance. A will clause stating “I give my share of the flat to my son” is legally ineffective if the flat is held as joint tenants—the son receives nothing.

Tenancy in Common: Several Shares and Testamentary Freedom

A tenancy in common (分權共有) does not carry the right of survivorship. Each co-owner holds a distinct, undivided share (e.g., 50%, 33.33%) that forms part of their estate upon death. This share can be freely devised by will or, in the absence of a will, distributed under the Intestates’ Estates Ordinance (Cap. 73). Section 4(1) of Cap. 73 provides that where a person dies intestate leaving a spouse and issue, the spouse takes HK$500,000 plus one-half of the residue, with the issue taking the remaining half. For a tenancy in common, this statutory distribution applies to the deceased’s fractional share of the property, not the whole. The Land Registry’s Form LR2 (Memorandum of Discharge) allows for a declaration of tenancy in common, but this is frequently omitted in standard refinancing documentation. A 2024 survey by the Hong Kong Institute of Certified Public Accountants (HKICPA) found that 68% of mortgage discharge forms submitted by banks in 2023 did not specify the type of co-ownership, defaulting to joint tenancy by omission.

Tax and Probate Implications

Estate Duty: The Dormant but Relevant Threat

Hong Kong abolished estate duty for deaths occurring on or after 11 February 2006, under the Estate Duty (Abolition) Ordinance (2005). However, for estates of individuals who died before that date, the Estate Duty Ordinance (Cap. 111) still applies. For a joint tenancy, the entire property is deemed to pass to the survivor, and estate duty is calculated on the full market value at the date of death, less the survivor’s contribution if proven. The Inland Revenue Department’s (IRD) practice is to assess duty on the whole property unless the survivor can demonstrate they provided consideration for their share. For a tenancy in common, only the deceased’s fractional share is subject to duty. While this is a historical concern for pre-2006 estates, the principle remains relevant for any future reintroduction of estate duty—a topic debated in the 2024 Legislative Council Finance Committee, where the Secretary for Financial Services and the Treasury stated that the government “has no current plans” but “keeps all options under review.”

Probate Administration: Cost and Delay

For a tenancy in common, the deceased’s share must be administered through the Probate Registry. The current filing fee for a Grant of Probate is HK$265, plus a HK$30 court fee, but the real cost is the time and legal fees. The Judiciary’s Annual Report 2023 shows that the average processing time for a simple probate application is 8–12 weeks, rising to 6–9 months for contested or complex estates. During this period, the property cannot be sold or refinanced without the consent of all beneficiaries or a court order. For a joint tenancy, the survivor can immediately apply to the Land Registry to update the title—Form LR1A (Transmission by Death) costs HK$210 and is processed in 5–7 working days. The difference in liquidity and administrative burden is substantial. A family holding a HK$20 million property as tenants in common faces a potential 6-month freeze on disposal, while a joint tenancy allows near-instant transfer.

Stamp Duty Implications on Severance

Severing a joint tenancy into a tenancy in common is not a conveyance on sale and therefore does not attract ad valorem stamp duty under the Stamp Duty Ordinance (Cap. 117). The IRD’s Stamp Office confirms that a Deed of Severance is chargeable at a fixed duty of HK$100 (under Head 4(1) of the First Schedule to Cap. 117). However, if the severance is accompanied by a change in the beneficial ownership proportions (e.g., from 50/50 to 60/40), the IRD may treat the excess as a part disposal subject to ad valorem duty at the applicable rate (up to 4.25% for residential property under the 2024 rates). This nuance is frequently overlooked in family restructuring exercises.

Planning Strategies for the 50+ Demographic

The Blended Family Challenge

For a second marriage with children from a prior relationship, joint tenancy is structurally incompatible with the testator’s intention to provide for both the surviving spouse and the children. A typical will leaving “my share of the flat to my children” is ineffective if the flat is held as joint tenants. The solution is twofold: (1) execute a Deed of Severance to convert the joint tenancy into a tenancy in common, then (2) draft a will that devises the deceased’s fractional share to a trust or specific beneficiaries. The trust structure, often a discretionary trust under the Trustee Ordinance (Cap. 29), allows the surviving spouse to occupy the property during their lifetime (a life interest) while the capital passes to the children on the second death. This avoids the forced sale that can arise if the children inherit an undivided share and demand partition under Section 11 of the Partition Ordinance (Cap. 352).

The Cross-Border Heir Problem

Hong Kong residents with children who are US, UK, or Canadian citizens face additional complexity. A joint tenancy creates a deemed disposition of the entire property on the first death for US estate tax purposes (under IRC Section 2040), potentially triggering a tax liability even if the deceased was not a US citizen. For a HK$30 million property, the US estate tax exemption (US$13.61 million for 2024) may be exceeded, resulting in a 40% tax on the excess. Holding the property as tenants in common allows the deceased’s share to be valued separately, potentially falling within the exemption. The US-Hong Kong Double Taxation Agreement does not cover estate taxes, so this is a unilateral exposure. A 2023 advisory from the Hong Kong Institute of Certified Public Accountants (HKICPA) recommended that HNW individuals with US-connected heirs hold property as tenants in common and consider a Qualified Domestic Trust (QDOT) for the surviving spouse’s share.

The Reverse Mortgage and Equity Release Risk

Hong Kong’s Reverse Mortgage Programme, administered by the Hong Kong Mortgage Corporation (HKMC) since 2011, requires the property to be held in the name of the borrower(s). If the property is held as joint tenants, the death of one borrower triggers a full repayment of the loan, as the surviving joint tenant becomes the sole owner. The HKMC’s Product Brochure 2024 states that “upon the death of the last surviving borrower, the property will be sold to repay the loan.” For a tenancy in common, the death of one borrower only triggers repayment of that borrower’s share of the loan, allowing the surviving co-owner to continue the arrangement. This distinction is critical for elderly couples who rely on the reverse mortgage for retirement income. The HKMC reported 4,200 active reverse mortgage cases as of December 2023, with an average property value of HK$5.8 million. A failure to structure ownership correctly could force the surviving spouse to sell the family home prematurely.

Actionable Takeaways

1. Every married couple in Hong Kong with a jointly owned property should verify the Land Registry title (查冊) to confirm whether the ownership is joint tenancy or tenancy in common—a HK$25 online search can prevent a HK$10 million succession dispute.

2. If your will contains a clause that gives “my share” of a property to a specific beneficiary, and the property is held as joint tenants, that clause is void—execute a Deed of Severance immediately to convert to a tenancy in common.

3. For blended families, consider holding the matrimonial home as tenants in common and structuring a life interest trust in the will to allow the surviving spouse to occupy the property while the capital passes to children from a prior relationship.

4. If any beneficiary is a US person, hold the property as tenants in common and engage a US tax advisor to assess potential estate tax exposure under IRC Section 2040—the US estate tax exemption is US$13.61 million per individual for 2024.

5. For couples over 65 considering a reverse mortgage, ensure the property is held as tenants in common to avoid triggering full loan repayment on the first death—the HKMC’s programme allows continuation of the loan for the surviving co-owner’s share only.