SelfProving Codicils in California

Emily just called, distraught. She’d painstakingly updated her estate plan, preparing a codicil to her trust. She thought she’d done everything right, even getting it signed and witnessed. But the witness moved out of state, and now Emily’s family is facing a potential probate fight just to validate those changes. The cost? Easily $5,000 – $10,000 in legal fees, plus significant delays. This is a shockingly common scenario, and it highlights a critical weakness in many California estate plans: a missing or improperly executed self-proving affidavit.

As an Estate Planning Attorney and CPA with over 35 years of experience here in Escondido, I’ve seen firsthand how a seemingly minor oversight like this can derail even the most carefully constructed plan. It’s frustrating for clients, and frankly, it’s entirely preventable. The self-proving affidavit is a powerful tool that eliminates the need to track down witnesses after the fact, streamlining the probate process and giving your family peace of mind.

Why Are Codicils Important Anyway?

Most people assume their initial estate plan will last a lifetime. But life happens. Marriages, divorces, births, deaths, significant changes in assets… these events all necessitate updates. A codicil is a legal document that amends an existing trust or will without requiring a complete rewrite. It’s efficient, but it’s only effective if it’s valid. And that’s where the self-proving affidavit comes in.

What Does a Self-Proving Affidavit Actually Do?

Think of it as a pre-emptive witness declaration. In California, a valid will or trust requires two witnesses who must be present when you sign and who must also sign the document themselves. A self-proving affidavit is a sworn statement, signed by you and those witnesses, attesting to the fact that the signing ceremony took place correctly. It’s notarized and attached to the codicil. If a codicil is invalidated, assets may force full probate; however, for deaths on or after April 1, 2025, estates under $208,850 (per CPC § 13100) may still qualify for simplified procedures. This limit is set until 2028.

The Pitfalls of Not Having One

Without a self-proving affidavit, if a question arises about the validity of the codicil—perhaps a witness is unavailable, has a lapse in memory, or even passes away—the court may require proof of the signing. This often means locating the witnesses, potentially years later, and obtaining sworn testimony. As Emily’s case illustrates, this can be expensive and time-consuming.

The CPA Advantage: Stepping Up Basis and Beyond

As a CPA as well as an attorney, I understand the tax implications of estate planning are just as crucial as the legal aspects. Properly drafted codicils, especially those addressing asset ownership, can significantly impact the “step-up in basis” for inherited assets. This means your heirs may avoid paying capital gains taxes on the appreciation of those assets. It’s a complex issue, and having a CPA involved ensures these tax benefits aren’t overlooked.

What About Digital Assets and New Technologies?

Modern estate planning goes beyond physical property. We live in a digital age, and many assets—cryptocurrency, online accounts, digital photos—have significant value. A standard codicil often fails to include the specific RUFADAA language (CPC § 870) required to bypass federal privacy laws, potentially leaving your heirs locked out of crypto-wallets and email accounts.

LLCs, Business Interests and the CTA Domestic Exemption

If you own a Limited Liability Company (LLC) or other business interests, your codicil needs to address ownership transfers and operating agreements. It’s vital to ensure these provisions align with your overall estate plan. Furthermore, as of March 2025, FinCEN has exempted domestic U.S. LLCs from BOI reporting; however, foreign-registered entities in the U.S. still face mandatory filing requirements and potential penalties.

Holographic Codicils: A Word of Caution

California allows for handwritten codicils, but they come with strict requirements. Under Probate Code 6111, the entire codicil – signature and material provisions detailing who receives what – must be in your own handwriting. Even a single typed line can invalidate the entire document. A self-proving affidavit isn’t applicable to holographic codicils, so meticulous handwriting and clear intent are paramount.

The 2026 Tax Landscape and the OBBBA

Estate tax laws are constantly evolving. The 2026 ‘tax cliff’ was averted by the OBBBA, which permanently increased the Federal Estate Tax Exemption to $15 million per person effective Jan 1, 2026. Old formula clauses should be reviewed to ensure they don’t over-fund trusts under these new limits.

What makes a California will legally enforceable when it matters most?

In California, a last will and testament is reviewed under probate standards that focus on intent, capacity, and execution. Clear drafting reduces ambiguity, limits misinterpretation, and helps families avoid unnecessary conflict during estate administration.

When a will is drafted with California probate review in mind, it becomes a stabilizing roadmap rather than a source of conflict. Clear intent, proper authority, and compliant execution protect both families and estates.

Primary Legal Authorities Governing Probate and Estate Administration

• Probate & Local Court Rules:
  
  San Diego Superior Court – Probate Division
  
  Official Escondido County probate rules, filing procedures, examiner notes, and Local Rule 4.4.5 governing remote appearances and non-evidentiary hearings.
• Attorney Licensing & Ethical Standards:
  
  State Bar of California
  
  The authoritative source to verify attorney license status, disciplinary history, and current ethical rules governing California attorneys and client trust accounts.
• Judicial Council Forms & Self-Help:
  
  California Courts – Wills, Estates, and Probate
  
  State-issued probate forms and guidance, including small estate procedures, primary residence transfers under AB 2016, and executor responsibilities.
• Federal Estate & Gift Tax Law:
  
  IRS Estate Tax Guidelines
  
  Federal rules governing estate and gift tax filing, including the permanent 2026 OBBBA exemption of $15 million per individual.