--- title: "I Gave My Brother Half My $1.5 Million Home. Can He Force Me to Sell?" description: "A reader who gifted a sibling a half-share of a roughly $1.5 million house now fears the co-owner could push for a sale. Lawyers say that fear has a name — a partition action — and the answer is mostly yes, though planning can soften it." category: "Personal Finance" category_url: https://boursel.com/category/personal-finance author: "Priya Venkatesan" published: 2026-06-24T09:34:00.000Z updated: 2026-06-24T09:34:00.000Z canonical: https://boursel.com/article/co-owner-force-sale-partition tags: ["real-estate", "estate-planning", "gift-tax", "co-ownership", "partition"] --- # I Gave My Brother Half My $1.5 Million Home. Can He Force Me to Sell? A reader who gifted a sibling a half-share of a roughly $1.5 million house now fears the co-owner could push for a sale. Lawyers say that fear has a name — a partition action — and the answer is mostly yes, though planning can soften it. A reader who put a sibling on the deed of an expensive home and now regrets it is asking a question many co-owners eventually face: once someone else holds a share, can they force the whole property to be sold? The short answer from real-estate and estate attorneys is that, in most cases, yes — though the details depend on state law and how the deed is written. ## What a partition action is The legal tool a co-owner uses is a [partition action](https://www.lawfirmkos.com/post/partition-forcing-the-sale-of-jointly-owned-property), a lawsuit asking a court to either divide jointly owned property or order it sold. Critically, almost any co-owner can bring one, and courts generally will not require a reason. In most states a co-owner can [force a sale regardless of the size of their share](https://jonespropertylaw.com/forced-sale-of-jointly-owned-property-partition/), and regardless of whether the other owner wants to sell. Courts can divide raw land into parcels ("partition in kind"), but they generally [cannot cut a single house in two](https://jonespropertylaw.com/forced-sale-of-jointly-owned-property-partition/). For a residence, that usually means a "partition by sale" — often at auction — with the proceeds split by ownership share. The practical takeaway: a half-owner who insists can typically compel a sale of the home. ## Joint tenancy vs. tenancy in common How the deed is titled matters most for what happens when an owner dies. Under [joint tenancy with right of survivorship](https://www.nolo.com/legal-encyclopedia/free-books/avoid-probate-book/chapter6-3.html), the surviving owner automatically inherits the deceased co-owner's share outside of probate. Under a [tenancy in common](https://www.superlawyers.com/resources/real-estate/joint-tenancy-vs-tenants-in-common-whats-the-difference/), there is no automatic survivorship — each owner can hold an unequal percentage, sell their interest without consent, and leave their share to anyone in a will. Either way, both forms generally leave the door open to a partition suit. ## The gift-tax angle Handing over half of a $1.5 million home is itself a taxable gift of roughly $750,000 in fair-market value. That is far above the [2025 annual gift-tax exclusion of $19,000 per recipient](https://www.kiplinger.com/taxes/gift-tax-exclusion), so a gift-tax return is required. In practice, most people owe no tax: the excess is deducted from the [lifetime estate and gift-tax exemption](https://www.morganlewis.com/pubs/2025/10/irs-announces-increased-gift-and-estate-tax-exemption-amounts-for-2026), which is $13.99 million per individual in 2025 and rises to $15 million in 2026. There is a hidden cost, though. A gifted asset carries a ["carryover basis"](https://www.gmlaw.com/news/understanding-step-up-in-basis-and-capital-gains-what-you-should-know-about-gifting-assets/) — the recipient inherits the giver's original cost basis rather than getting the "step-up" to market value that heirs receive at death. That can mean a larger capital-gains bill if the share is later sold. ## What can protect a reluctant co-owner Gifting a share is hard to undo, but attorneys point to tools that reduce the risk of a forced sale. A written [co-ownership agreement](https://jonespropertylaw.com/forced-sale-of-jointly-owned-property-partition/) can govern how and when the property may be sold; in many states owners can contractually waive or restrict partition rights. A right of first refusal lets one owner buy the other out before any outside sale. Placing the home in a trust can also dictate the terms of ownership and transfer. This article is educational and reflects general principles described by named legal and tax sources — not legal or financial advice. Partition rules, basis treatment and waiver enforceability vary by state, so anyone in this situation should consult a real-estate or estate attorney licensed where the property sits.