California Family Code Section 2640: Separate Property Reimbursement in Divorce

When you use separate property money — an inheritance, premarital savings, or a gift from your parents — to buy, improve, or pay down a community asset, California law says you get that money back before the 50/50 split happens. This is the Section 2640 reimbursement right, and failing to claim it is one of the costliest mistakes in California divorce.

How Section 2640 Works

The rule is straightforward: if separate property funds were contributed to the acquisition of community property, the contributing spouse is entitled to dollar-for-dollar reimbursement, paid off the top of the asset's net equity before the remaining community equity is divided equally.

Example: You inherited $80,000 and used it as the down payment on a jointly titled home now worth $500,000 with a $300,000 mortgage. The net equity is $200,000.

• Your Section 2640 reimbursement: $80,000 (off the top)
• Remaining community equity: $200,000 − $80,000 = $120,000
• Your share: $80,000 + $60,000 = $140,000
• Your spouse's share: $60,000

Without claiming Section 2640, the full $200,000 would be split 50/50 ($100,000 each) and you would lose $40,000 of your separate property contribution.

What Qualifies for Reimbursement

Section 2640 covers contributions of separate property to the acquisition or improvement of community property:

• Premarital savings used as a down payment on a jointly titled home
• Inherited funds applied to home renovations or capital improvements
• Separate property used to pay down the principal balance on a community mortgage
• Gifts received by one spouse and invested into a joint asset

What Does Not Qualify

Section 2640 reimbursement is strictly limited:

• No interest or inflation adjustment — you get back the nominal dollar amount, not what it would be worth today
• Mortgage interest, taxes, and insurance — payments that do not reduce the principal or improve the asset are not reimbursable
• Maintenance and repairs — routine upkeep does not qualify unless it added measurable value to the property
• Cannot exceed net value — reimbursement is capped at the asset's current net equity. If your home is underwater (the mortgage exceeds the value), your reimbursement is reduced to zero
• Waiver — you can waive your reimbursement right in a prenuptial or postnuptial agreement

The Tracing Requirement

The burden of proving a Section 2640 claim falls on the spouse asserting it. You must trace the separate property funds from their origin (the inheritance check, the premarital bank account, the gift letter) to the community asset.

This means keeping documentation:

• Bank statements showing the separate funds before they were contributed
• Closing statements or escrow documents showing the source of the down payment
• Wire transfer records linking the separate account to the purchase
• Gift letters or inheritance documentation establishing the separate character of the funds

If the funds were commingled — deposited into a joint account before being applied to the asset — tracing becomes more complex but is still possible using direct tracing or exhaustion methods.

Section 2640 vs. Moore-Marsden

These two rules address different situations:

Section 2640 applies when separate property funds are contributed to a community asset. You get dollar-for-dollar reimbursement with no share of appreciation.

Moore-Marsden applies when community funds (wages during the marriage) pay down the mortgage on a separate property asset (a home bought before the marriage). The community gets a proportional share of the home's appreciation.

In some cases, both rules apply to the same property — for instance, a premarital home where the purchasing spouse used an inheritance for renovations (Section 2640 reimbursement) and community earnings paid the mortgage (Moore-Marsden community interest).

How to Protect Your Claim

Document everything at the time the contribution is made — not years later during the divorce. Keep the inheritance or gift in a separate account until the moment you apply it to the purchase, and save the paper trail.

The California Divorce Financial Split Guide includes a Section 2640 tracker worksheet designed to organize your separate property contributions with the documentation courts require — so your reimbursement claim survives scrutiny during mediation or trial.

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