When parents and children, or spouses, pool funds to buy a home, it matters whether the actual funding split matches the registered ownership shares. Here's an overview of the cautions involved in co-ownership registration.
- When buying under co-ownership registration (kyōyū meigi), the basic rule is to set the registered ownership share (mochibun) in proportion to how much each person actually paid.
- If you register a share that differs from the actual funding ratio, the difference may be treated as a gift, and gift tax (zōyo zei) could be charged.
- A pair loan (pea rōn) is a method where each spouse signs a separate loan contract — a different mechanism from co-ownership registration itself.
- Co-ownership can make procedures more complex than sole ownership later on, at the time of a future sale, inheritance, or divorce.
- When deciding on ownership shares, it's important to clarify who paid the down payment, who's responsible for the loan, and who covered the various fees.
Conclusion: Set Ownership Shares Based on Actual Contributions
When parents and children, or spouses, pool funds to buy a home, the basic approach is to set the registered co-ownership share in proportion to the amount each person actually contributed — down payment, loan, or otherwise. If the funding ratio and the ownership share don't match, there's a risk it will be treated as a gift.
Ownership Shares and Gift Tax
For example, suppose a married couple pools funds from both partners to buy a home, but registers ownership shares that don't match what each person actually contributed. In that case, the partner who ends up with a larger share than their contribution warrants may be treated as having received a gift for the difference, and gift tax could be charged. You need to sort out the down payment, loan repayment amounts, and who paid the various fees before calculating the ownership shares. For how gift tax works when receiving financial help from a parent, see our separate article, Financial Help From Parents and Gift Tax — The Basics of Funds for Acquiring a Home.
The Difference Between a Pair Loan and Co-Ownership Registration
A pair loan is often compared to co-ownership as a way for couples to buy together. With a pair loan, each spouse signs a separate mortgage contract, and ownership shares are registered based on each person's borrowed amount — and each spouse may be able to claim the home loan tax credit individually. This is a different mechanism from taking out a mortgage under one name and simply setting a co-ownership share, so it's worth keeping the two straight. We cover the difference between a pair loan and combined income in a separate article, Pair Loans vs. Combined Income — How Dual-Income Households Borrow.
Parent-Child Relay Loans and Parent-Child Pair Loans
When parents and children pool funds together, mechanisms like a parent-child relay loan (oyako rirē rōn) or a parent-child pair loan — where the parent and child each share the repayment burden — are sometimes used. Here too, the basic rule is to align the actual repayment burden ratio with the registered ownership share. Since some of these products are designed so that the child takes over repayment alone after the parent retires, it's worth checking this against your future repayment plan.
Future Cautions With Co-Ownership
Property under co-ownership tends to involve more complex procedures than sole ownership — for example, requiring the consent of all co-owners to sell in the future, becoming subject to inheritance if one co-owner passes away, or needing the shares sorted out as part of a divorce settlement. Whether to go with co-ownership is worth deciding with these future scenarios in mind as well.
Registration Costs and Practical Procedures
Registering under co-ownership also involves registration costs, such as the registration and license tax for the transfer of ownership and the judicial scrivener's fee. The more complex the ownership shares, the more there is to check during registration, so it's reassuring to consult a judicial scrivener about how to think through the shares in advance.
Frequently Asked Questions
How should we decide on the ownership shares?
The basic approach is to decide based on the ratio of funds each person actually contributed — down payment, loan, and so on. Setting a share that differs from the actual contribution ratio risks being treated as a gift.
Are co-ownership and a pair loan the same thing?
No, they're different. A pair loan is a way of borrowing where each spouse signs a separate loan contract; co-ownership is about the registered ownership ratio. Taking out a pair loan can result in co-ownership, but the two concepts are distinct.
What should we watch out for in the future if we go with co-ownership?
Keep in mind that procedures tend to be more complex than with sole ownership — for instance, needing all co-owners' consent to sell, or needing to sort out the shares in the event of inheritance or divorce.
Summary
When parents and children, or spouses, pool funds to buy together, the basic rule is to register ownership shares that match the actual funding split. Keep in mind how this differs from a pair loan, and the cautions around a future sale or inheritance, and proceed with advice from a professional such as a judicial scrivener.