CoBuy
Glossary
Equity
Glossary

Equity

Also known as:  

Home equity, Property equity

TL;DR

Equity is the difference between a property's market value and what is owed on it. In co-ownership, each co-owner's equity is calculated based on their ownership percentage.

What It Means

Equity is the financial interest a property owner holds in their property — calculated as the difference between the property's current market value and the total outstanding mortgage balance. In co-ownership, equity is not held as a single lump sum. Each co-owner's equity is often allocated using the ownership percentage recorded on the Deed, plus any adjustments defined in the Co-ownership Agreement.

Equity changes over time as the mortgage is paid down and as the property's market value fluctuates. It is the central figure in determining what a departing co-owner receives during a Buyout or property sale.

How Equity Is Calculated in Co-ownership

The simplest calculation applies each co-owner's ownership percentage to the total equity. If a property is worth $500,000 with a $300,000 mortgage balance, total equity is $200,000. A co-owner with a 60% ownership interest holds $120,000 in equity; a co-owner with 40% holds $80,000.

However, equity allocation can be more complex when the Co-ownership Agreement accounts for unequal Capital Contributions, adjustments for co-owners who contributed more to the down payment, or credits for improvements funded by one party. The agreement's valuation and equity provisions govern how these adjustments are applied at exit.

Why It Matters for Co-owners

Equity is the financial outcome of co-ownership. Disputes over equity allocation are among the most common sources of conflict between co-owners — particularly at exit, when the stakes are highest. Without a predefined calculation method, co-owners may disagree about what each party is owed, what adjustments apply, and how the property should be valued.

The Co-ownership Agreement should define the equity calculation methodology, the valuation method used to determine property value at exit (appraisal, formula, or agreed estimate), and how contributions beyond the original ownership structure — such as renovation costs or additional principal payments — are credited.

Key Points

  • The difference between the property's market value and the outstanding mortgage balance
  • Often allocated using ownership percentage recorded on the deed, plus agreement-defined adjustments
  • May be adjusted for unequal capital contributions, improvements, or additional principal payments
  • Central to buyout calculations and property sale proceeds distribution
  • The Co-ownership Agreement should define the equity calculation methodology and valuation method
  • Disputes over equity allocation are among the most common co-ownership conflicts
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