If you’re going through a divorce in California and you own a home, the mortgage question is probably keeping you up at night. A new state law — California Civil Code Section 2951, enacted through Assembly Bill 3100 — is set to change how lenders handle mortgage assumptions during divorce. The catch? It doesn’t take effect until January 1, 2027, which means thousands of couples divorcing right now are still stuck navigating a system that hasn’t caught up.

Here’s what the law does, what it doesn’t do, and why the timing matters more than you might think.

What Is California Civil Code Section 2951?

Signed into law in September 2024, California Civil Code Section 2951 requires conventional home mortgage lenders to allow co-borrower assumptions when a divorce, legal separation, or property settlement is involved — but only for loans originated on or after January 1, 2027.

In plain terms: when a court awards the family home to one spouse, that spouse will be able to assume the existing mortgage rather than being forced to refinance into a brand-new loan. The assuming spouse keeps the original interest rate, repayment schedule, and remaining balance.

That’s a massive deal in today’s market. According to Freddie Mac, the average 30-year fixed rate sits around 6.38% as of late March 2026. A homeowner who locked in a pandemic-era rate of 2.8% on a $700,000 loan would face roughly $1,500 more per month after refinancing — a difference that adds up to over $540,000 across the life of the loan. For a parent trying to stay in the family home during an already difficult transition, that’s not just a financial inconvenience. It can be the difference between keeping the home and being forced to sell.

Why This Law Matters — And Why Timing Is Everything

The forced refinancing problem isn’t new. For decades, California law has had no mechanism requiring lenders to honor divorce court orders. Even when a judge awards the home to one spouse, the other spouse’s name stays on the mortgage until the staying spouse refinances — or the property is sold. Lenders could refuse assumption outright, leaving divorcing homeowners with few options.

Assembly Bill 3100 addresses this directly. Under the new framework, conventional loans on owner-occupied properties with four or fewer units must include provisions allowing one co-borrower to buy out the other’s share. To qualify, the assuming borrower must independently meet the lender’s qualifications — but if they do, the lender cannot refuse the assumption just because a divorce triggered it.

The law also protects the departing spouse: once the buyout is complete, they are removed from the mortgage and relieved of payment obligations. That’s a meaningful protection for anyone whose ex-spouse might otherwise miss payments and damage their credit years after the divorce is finalized.

The problem? For anyone divorcing today, none of this applies. Section 2951 covers only loans originated on or after January 1, 2027. Existing mortgages are not covered. Couples separating right now must still work within the old rules — meaning lenders hold most of the leverage, and refinancing remains the most common way to sever financial ties.

What the Law Does Not Cover

It’s worth being specific about the law’s limitations, because misunderstanding them can lead to costly mistakes.

Section 2951 does not apply to:

  • FHA, VA, or USDA loans (these already have separate federal assumption frameworks)
  • Loans originated before January 1, 2027
  • Situations where both spouses want to keep the home — the law only applies after a division of property has been determined through negotiation, mediation, or a court order

The law also doesn’t decide who gets the house. That question is still governed by California’s community property rules, which require equal division of marital assets absent a valid agreement to the contrary. Section 2951 only activates once the property division question has been resolved.

The Current Reality for Divorcing Homeowners in California

Until 2027 arrives, divorcing couples are navigating a system that heavily favors lenders. Here’s what the process typically looks like right now:

  1. Court assigns the home to one spouse via a divorce judgment.
  2. The staying spouse must refinance to remove the other spouse’s name from the mortgage — taking on a new loan at current market rates.
  3. If they can’t refinance due to income, credit, or high interest rates, the court may order a sale.
  4. Both spouses remain liable until refinancing or sale is complete, meaning a missed payment by one party affects both credit profiles.

This is not a theoretical problem. Rising interest rates have made it harder for single-income households to qualify for refinancing, and many families are choosing to delay selling or are forced into arrangements that create ongoing financial entanglement long after the marriage ends.

How a Family Law Attorney Can Help You Now

Even though Section 2951 won’t protect current borrowers, there are legal strategies that can minimize financial damage during property division. A knowledgeable family law attorney in Sonoma County can help you:

  • Draft a divorce judgment that clearly specifies what happens with the home and mortgage, including timelines for refinancing
  • Negotiate a co-ownership arrangement if selling isn’t ideal and refinancing isn’t feasible
  • Structure a buyout agreement that accounts for equity, current interest rates, and each spouse’s financial capacity
  • Protect your credit by building lender communication obligations into the settlement
  • Assess whether waiting until after January 1, 2027 to finalize property division makes financial sense given your situation

The financial stakes in property division are significant. A poorly drafted divorce decree can leave both parties exposed to credit damage, legal liability, and future litigation. Getting the language right from the beginning is far less costly than fixing it later.

What Divorcing Homeowners Should Do Right Now

If you’re currently going through a divorce and own a home with your spouse, these steps can protect you while the new law’s protections are still years away:

  1. Get a professional appraisal. Know what the home is actually worth before negotiating who keeps it.
  2. Request a mortgage payoff statement. This tells you exactly what’s owed, which affects how equity is calculated.
  3. Review your loan documents. Some older loans may already include assumption clauses worth exploring.
  4. Check current refinancing rates. Use tools like Bankrate’s mortgage calculator to understand what a new loan would actually cost you monthly.
  5. Consult a family law attorney. A lawyer with experience in California property division can walk you through every option — not just the obvious ones.
  6. Don’t agree to anything verbally. Every term related to the home and mortgage should be in writing and formally incorporated into the divorce judgment.

Looking Ahead: What Changes in 2027

For couples who take out new mortgages after January 1, 2027, the divorce mortgage landscape will look meaningfully different. Lenders will be legally required to allow assumption when a co-borrower divorces. The interest rate protection alone could save an assuming spouse hundreds of thousands of dollars over the life of a loan.

The California Legislature’s passage of AB 3100 reflects growing recognition that forced refinancing during divorce creates unnecessary financial harm — particularly when interest rate gaps are wide. Other states may follow California’s lead in requiring lender compliance with divorce court orders.

For now, the best protection available is legal preparation. Understand what you own, what you owe, and what your options are before finalizing any agreement about the family home.

Frequently Asked Questions

Does California’s new mortgage law apply to my divorce right now?

No. California Civil Code Section 2951 only applies to conventional mortgage loans originated on or after January 1, 2027. If your loan was taken out before that date, lenders are not required to allow assumption under this law.

What happens to the mortgage if my spouse gets the house in a divorce?

Until 2027, your name typically stays on the mortgage until your spouse refinances or the home is sold. Even if a court assigns the home to your spouse, the lender can still hold you responsible for repayment until the loan is paid off or refinanced.

Can my spouse assume the mortgage without refinancing right now?

Possibly, but only if your lender allows it voluntarily. There is currently no California law requiring conventional mortgage lenders to permit assumption in divorce situations. Section 2951 will change that — but only for loans originated in 2027 or later.

What if my spouse can’t qualify to refinance the mortgage?

If refinancing isn’t possible, the court may order the home sold. A family law attorney can help you explore alternatives like deferred sales, co-ownership arrangements, or creative buyout structures before a sale becomes the only option.

Does this new law affect FHA or VA loans?

No. Section 2951 applies only to conventional mortgages. FHA, VA, and USDA loans already have separate federal assumption frameworks that may apply regardless of this law.