Which California Contracts Must Be in Writing?

What follows are our general observations and opinions about which California contracts need to be in writing. This is not legal advice, it is not a definitive statement of California law, and every agreement depends on its own facts.

Most contracts in California do not need to be written down. An oral agreement can be perfectly enforceable, which surprises people who assume a handshake counts for nothing. But a defined set of agreements falls under what is generally called the statute of frauds, and as we read Civil Code section 1624, those are invalid unless there is a writing signed by the party to be charged.

The categories that matter most in practice are agreements that cannot be performed within a year, agreements to sell or lease real property for more than a year, promises to answer for someone else’s debt, agreements authorising a broker to buy or sell real estate for compensation, and certain loan commitments by institutional lenders.

The traps inside the categories

The list looks simple and is not. Two areas generate most of the disputes we see.

The one-year rule asks whether the agreement could possibly be performed within a year, not whether it was likely to be. Our reading is that an agreement of indefinite duration generally falls outside the rule, because it might end within a year. A two-year commitment falls inside it. This distinction catches people out constantly, because it turns on what was theoretically possible rather than what everyone expected.

Guaranties are the other. A promise to answer for another’s debt normally needs writing — which is why every commercial landlord insists on a signed personal guarantee rather than an assurance. There is a well-established exception where the promisor’s main purpose is to serve their own economic interest, and that exception is litigated more often than the rule.

What counts as a writing

Less than people expect. The statute generally requires a writing signed by the party being sued on it, containing the essential terms. It does not require a formal contract. In our experience courts have found sufficient writings in exchanges of emails, signed term sheets, and combinations of documents read together where they clearly refer to the same transaction.

California’s electronic transactions legislation also means an electronic signature is generally as good as ink. A negotiation conducted entirely over email, ending in “agreed — let’s do it” from a named sender, may well satisfy the requirement even though nobody thought they were signing anything. We would treat that as a risk in both directions: it can rescue a deal you thought was unenforceable, and it can bind you to one you thought was still under discussion.

The exceptions that rescue oral agreements

Failing the statute of frauds is not always fatal. Several doctrines can save an oral agreement, and they come up regularly:

  • Part performance. Particularly in real property matters, conduct consistent only with the claimed agreement — taking possession, paying, making improvements — can support enforcement.
  • Estoppel. Where one party reasonably relied to their detriment and enforcing the statute would work a serious injustice, courts have declined to apply it mechanically.
  • Full performance. Where one side has fully performed, the policy behind the rule is weaker.
  • Admission. A party who admits the agreement in pleadings or testimony has a harder time invoking the statute to escape it.

We would be candid that relying on these is expensive. They are fact-intensive, they rarely resolve on a quick motion, and litigating whether an agreement exists costs far more than writing it down would have.

How this shows up in Los Angeles practice

The recurring scenarios are familiar. A multi-year commercial lease agreed in principle over email with the formal document never signed. A business owner who verbally assured a supplier they would personally cover the company’s account. A commission arrangement with a broker or finder that everyone understood and nobody documented. A partner or investor promised a share of a property on a phone call.

In each case the underlying dispute is rarely about the statute of frauds as such — it is about what was agreed. The statute simply becomes the mechanism by which one side tries to escape a deal the other believes was struck.

Practical suggestions

Write it down, obviously — but more usefully, be deliberate about when you are agreeing. Say “subject to a signed agreement” in email if that is what you mean, because absent that qualifier an email chain can look a great deal like a contract. If you are on the other side and want to lock something in, get the essential terms and a name in writing early.

And where an agreement matters, get the essential terms right rather than merely present: parties, property or subject matter, price, and term. A writing that satisfies the statute but omits something material simply moves the fight from enforceability to interpretation.

Talk to us

If you are unsure whether something you agreed is binding, or someone is trying to walk away from a deal you thought was done, call us at (310) 556-9692. Contract review and drafting is transactional work, so we handle it on an hourly or flat-fee basis rather than on contingency, and we will give you a cost estimate before we start.

Related reading: our contract review and drafting resources, plus assignment and consent clauses and personal guarantees in California commercial leases.

This article reflects our own general views and opinions and is offered for information only. It is not legal advice, it is not a definitive statement of California law, and reading it does not create an attorney-client relationship between you and our firm. If the enforceability of an agreement matters to you, please speak with a lawyer about your particular circumstances.

TALK TO A LOS ANGELES ATTORNEY

Tell us what is happening and we will get back to you. Your consultation is free, and we will tell you honestly whether we think you have a case worth pursuing.

Posted on Google Google
Jris Donnely profile picture
Jris Donnely
August 5, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex has been a huge help as we work through a difficult tenant situation. He has gone above and beyond and has treated the issue with the same care and attention he would give his own. His guidance has been incredibly valuable, and he is always willing to answer questions, whether they are directly related to the case or not. Working with Alex feels like having a trusted legal advisor on call. He is responsive, dedicated, and focused on actually moving things forward. He is not the kind of attorney who just runs up the bill without getting results. We truly appreciate everything he has done and highly recommend him.
Posted on Google Google
Ryan Ucker profile picture
Ryan Ucker
July 31, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Working with my attorney was the best decision I could’ve made. He took the time to explain everything, kept me updated without me ever having to chase information, and genuinely cared about getting me the best possible result. What could’ve been overwhelming ended up feeling straightforward because of how well he handled my case. I’m extremely grateful for his help and would absolutely recommend him.
Posted on Google Google
Yolanda Peoples profile picture
Yolanda Peoples
July 14, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I highly recommend Alex to anyone looking for an experienced and dedicated attorney. From the beginning, he was responsive, available whenever I had questions, and kept me informed throughout my mold case. He explained everything clearly and made sure I understood each step of the process. What impressed me the most was how efficiently he handled my case. I have never had a lawsuit settled this fast. Alex's knowledge, professionalism, and attention to detail helped achieve a successful outcome much sooner than I expected. If you're looking for an attorney who is skilled, communicative, and truly committed to getting results for his clients, I would highly recommend Alex.
Posted on Google Google
Lis Dye profile picture
Lis Dye
June 30, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex was nothing but kind, patient and incredibly thoughtful and hardworking through this whole process. I thought my claim had no legs, and he reached out months later and was able to settle! Could not recommend enough!
Posted on Google Google
Nhi Nguyen profile picture
Nhi Nguyen
June 30, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
When I first reached out in December 2025, I had never hired an attorney before. I've always tried to handle things on my own, but after months of dealing with an HOA that was unresponsive to the ongoing health concerns, I realized I needed someone who could advocate for me. My home had become unlivable due to serious issues, including mold growth and water shutoffs, yet after emailing my HOA and property managers over and over - nothing was resolved. From the moment I spoke with Alex, I finally felt like some of the emotional burden was being lifted. Throughout my case, he was responsive, knowledgeable, and patient, taking the time to explain the process and answer my questions. He helped me pursue accountability and achieve a resolution after an incredibly stressful experience. I'm grateful he was willing to take on my case and guide me through my first experience working with an attorney. If you're looking for someone who genuinely advocates for his clients, I highly recommend him and his firm. Thank you Alex! I really appreciate you for the support and care you provided.
Posted on Google Google
Richard Landeros profile picture
Richard Landeros
June 8, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex Menhdipour is transparent and forthcoming as they come. He was able to articulate things to help me and my family understand. He’s knowledgeable, agile, dedicated and efficient. Me and my family highly recommend Alex Mehdipour
Posted on Google Google
Morrie Hines o profile picture
Morrie Hines o
June 4, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex was absolutely a honor to work with and the way he has taken care of my family during our process was only extraordinary. Alex took the case when no one else would and got us an handsome settlement I would suggest him to anyone walking this earth.
Posted on Google Google
Danielle profile picture
Danielle
May 21, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
From my initial call, Alex was so calming and reassuring, he made me feel confident that my situation was valid and that we would be able to successfully reach a settlement that worked for me. He has great communication and is very professional, literally everything I could ask for in a lawyer to represent me in my habitability case.
Posted on Google Google
Nastya Valentine profile picture
Nastya Valentine
May 21, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Alex was greatly helpful during our mold case, very calm when we were stressed, and quick to respond. Highly recommend.
Posted on Google Google
Jon Naudi profile picture
Jon Naudi
May 8, 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
☎ Call Us ✉ Email Us