What FC 2640 Covers

Family Code 2640 says that if you contributed separate property to the acquisition of community property, you get that money back. The statute is very specific about what counts. Reimbursement applies to down payments, payments for improvements, and payments that reduce the principal of a loan used to buy or improve the property. The reimbursement is dollar for dollar. If you put $75,000 of separate property toward a down payment, you get $75,000 back. Not $75,000 plus interest. Not $75,000 plus a share of the appreciation. Just the $75,000.

This is both the strength and the limitation of 2640. It protects your original contribution but does not reward you for the growth that contribution helped create. If the house doubled in value, the community gets the benefit of that appreciation, not you. The statute caps your recovery at the net value of the property at the time of division, so if the property lost value and your contribution exceeds the remaining equity, you only get what is there.

Dollar for Dollar Reimbursement: No Interest, No Appreciation

The statute could not be clearer on this point. The amount reimbursed shall be without interest or adjustment for change in monetary values. This means your $50,000 down payment from 2015 is still worth $50,000 in 2026, even though inflation has eroded its purchasing power and the house has appreciated by $300,000. You do not get a time value adjustment. You do not get a share of the equity growth. You get your exact dollars back, and the community splits whatever is left.

This rule surprises a lot of people. They assume that if their separate property helped buy an asset that grew in value, they should share in that growth. The legislature decided otherwise. The rationale is that 2640 is a reimbursement statute, not an investment return statute. It corrects the unfairness of one spouse losing their separate property to the community, but it does not turn that spouse into an equity partner in the community asset.

The Tracing Requirement: Clear and Convincing Evidence

Here is where most 2640 claims live or die. The statute says you must trace the contribution to a separate property source. The burden is on you, the person claiming reimbursement, and the standard is clear and convincing evidence. That is higher than the usual preponderance standard used in most civil cases. The court wants to see a paper trail, not hear your testimony about what you remember.

Direct tracing is the gold standard. You show a bank statement from your separate property account, a wire transfer or check to escrow, and the closing documents showing the down payment amount. The money never touched a community account. The path is clean and unambiguous. If you have this documentation, your 2640 claim is almost certainly going to succeed.

But life is rarely that clean. Maybe you deposited the inheritance into a joint account first, then wrote a check to escrow from that joint account. Now you have commingling, and tracing becomes a forensic accounting exercise. The exhaustion method is one approach: you show that community funds in the joint account were spent on community expenses, leaving only your separate funds available for the down payment. This works but requires extensive documentation of every deposit and withdrawal. A forensic accountant may be necessary, and that adds cost and delay.

Without adequate tracing, the court will deny your claim. It does not matter how certain you are that the money was yours. It does not matter that your spouse admits it in a text message. If you cannot produce the documents that trace the funds from a separate property source to the community property acquisition, the presumption under Family Code 760 controls, and the entire asset is treated as community property.

Written Waiver: How You Can Lose Your Right

Family Code 2640 says that reimbursement is not available if the party has made a written waiver of the right to reimbursement or has signed a writing that has the effect of a waiver. This means your spouse cannot trick you into giving up your 2640 rights verbally. They need your signature on a document that expressly or implicitly waives the right. A prenuptial agreement can waive 2640 rights. A postnuptial agreement can too. Even a settlement agreement that says you waive all reimbursement claims would do it.

If there is no written waiver, your 2640 right survives regardless of what you said or what your spouse claims you promised. Oral agreements to waive 2640 are not enforceable. This is a strong protection for the contributing spouse, but it only helps if you actually have a valid 2640 claim in the first place. The waiver rule does not create a claim where none exists. It merely prevents a valid claim from being destroyed by an informal conversation.

FC 2640 vs. Moore Marsden

These two concepts get confused constantly, but they address opposite problems. FC 2640 applies when separate property is contributed to a community property asset. You get your dollars back, no appreciation. Moore Marsden applies when community property is used to pay down the mortgage on a separate property asset. The community gets a proportional share of the appreciation, not just the principal payments. So 2640 gives the separate property contributor a fixed reimbursement, while Moore Marsden gives the community an equity share that grows with the property.

The two can actually apply to the same property in different directions. Imagine a house that one spouse owned before marriage. During the marriage, the community paid down the mortgage, creating a Moore Marsden interest for the community. But the same spouse also used a separate property inheritance to renovate the kitchen, creating a 2640 reimbursement claim. At divorce, the community gets its Moore Marsden share, the separate property owner gets their 2640 reimbursement, and whatever is left gets divided according to the property’s overall characterization. It is complicated, which is why these cases almost always need a forensic accountant.

Frequently Asked Questions

Do I get interest on my 2640 reimbursement?
No. The statute explicitly says reimbursement is without interest or adjustment for change in monetary values.

Can I claim 2640 reimbursement for mortgage payments I made from my separate account?
Only the principal reduction portion qualifies. Interest, taxes, and insurance do not count as contributions to acquisition.

What if I cannot find the bank statements from ten years ago?
You can try to reconstruct the records through tax returns, escrow documents, or forensic accounting. But without documentation, the claim becomes very difficult to prove.

Does 2640 apply to business contributions too?
Yes. The statute applies to contributions to the acquisition of any community property, not just real estate. Business down payments and capital improvements can qualify.

Can my spouse argue that my contribution was a gift to the community?
Only if there is a written waiver or transmutation. Oral gifts of separate property to community property are not enforceable under Family Code 852.

Recover Your Separate Property Contribution

Do not let your premarital savings or inheritance disappear into the community estate. We can help you trace and recover it.

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Contact Hayat Family Law

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100 Wilshire Boulevard, Suite 700 D
Santa Monica, CA 90401
Phone: 310 917 1044

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Sherman Oaks, CA 91403
Phone: 818 380 3039

Sources:

• California Legislative Information
• California Courts
• The State Bar of California