🏠 California Moore-Marsden Calculation Model

📜 Authority: In re Marriage of Moore (1980) 28 Cal.3d 366 & Marsden (1982) 130 Cal.App.3d 426 • Verified for 2026 California Family Code

California Moore-Marsden Real Estate Equity Calculator

Calculate separate vs community pro-tanto equity interests in real estate purchased before marriage when community earnings pay down mortgage principal during marriage.

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Legal Notice: Draft calculations based on user-entered information and assumptions; professional review by qualified counsel required.

⚡ Calculate Separate & Community Equity Shares

Original Purchase Price ($)

Pre-Marital Down Payment ($)

Pre-Marital Appreciation ($)

Marital Appreciation ($)

Pre-Marital Principal Paydown ($)

Marital Community Principal Paydown ($)

Moore-Marsden Equity Breakdown

Community Equity Share: $105,000.00 ($52,500.00 each)

Separate Property Owner Equity Share: $455,000.00 (Total Property Equity: $560,000.00)

Understanding Moore-Marsden Pro-Tanto Interest

Under the landmark California Supreme Court cases In re Marriage of Moore (1980) and In re Marriage of Marsden (1982), when community funds are used to pay down mortgage principal on a residence owned separately by one spouse prior to marriage, the community acquires a pro-tanto equity interest in the property's appreciation during marriage.

Model Property Schedules & Real Estate Offsets

PE Proper generates complete property schedules, asset inventories, and equalization models for divorce settlements.

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