Codicil vs Writing a New Will

Emily just called, distraught. Her mother passed away last month, and Emily discovered a codicil to her mother’s will…dated six months before the original will. It completely contradicted a key bequest – leaving Emily’s brother the family cabin instead of her, as the original will stated. Now, a legal battle looms, delaying probate and costing the estate thousands. Emily’s story isn’t unique; these errors, particularly with codicils, can create a mess.

What’s the Difference Between a Codicil and a New Will?

A codicil is essentially an amendment to an existing will. Think of it like a “version update.” It allows you to make changes—appoint a new executor, add or remove beneficiaries, or modify specific bequests—without completely rewriting your estate plan. However, it must be executed with the same formalities as the original will: signed, witnessed, and notarized. The biggest risk? Integrating a codicil seamlessly with the existing document. Errors, like the one Emily faced, often stem from conflicting clauses or improper execution.

When Should I Use a Codicil?

Codicils are best suited for minor changes. A new grandchild, a small gift adjustment, or a change of executor are appropriate scenarios. However, if you’re making substantial revisions—changing primary beneficiaries, adding significant assets, or altering the overall distribution scheme—a new will is almost always the better option. Why? Because the more changes you layer onto an existing document, the higher the risk of ambiguity, internal inconsistencies, and, ultimately, a probate challenge.

What are the Risks of Using a Codicil?

The most significant risk is invalidation. If a codicil isn’t properly executed or creates irreconcilable conflicts with the original will, it can be deemed invalid by the court. This throws the entire estate plan into question, potentially leading to litigation and frustration of your wishes. Even a seemingly small error can have devastating consequences. 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.

Are There Tax Implications to Consider?

Absolutely. Updating your will or codicil should always be done with an eye toward tax efficiency. For example, if you’re gifting assets to a trust, you need to ensure the terms still align with current estate tax laws. 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. As a CPA as well as an estate planning attorney, I can help you navigate these complexities and minimize potential tax liabilities—specifically, maximizing the step-up in basis for inherited assets, which many attorneys overlook. Understanding asset valuation and capital gains implications is crucial.

How Does This Impact My LLC or Business Ownership?

If you own a business, especially an LLC, updating your estate plan—whether through a codicil or a new will—is critical. You need to ensure your business succession plan is clearly outlined and that ownership interests are properly transferred according to your wishes. Proper planning also addresses potential creditor claims and liability issues. 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. Ignoring these details can disrupt business operations and trigger unwanted tax consequences.

What About Digital Assets and Online Accounts?

This is an area many wills and codicils still fail to address adequately. Digital assets—online accounts, cryptocurrency, intellectual property—can be significant parts of an estate. 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. You need a dedicated digital asset plan that provides your executor with the necessary access and authority to manage these accounts.

What if I Have a Handwritten Codicil?

Handwritten codicils are valid in California under Probate Code 6111, but only if the signature and material provisions (who gets what) are in your own handwriting. No witnesses or notary are required for this specific format. However, I strongly advise against relying on holographic codicils. They are more prone to challenges due to ambiguities and legibility issues. A properly typed and witnessed document offers far greater legal protection.

I’ve been practicing estate planning and accounting for over 35 years, and I’ve seen firsthand how seemingly simple errors can create immense hardship for families. My unique background as both an attorney and a CPA allows me to provide a holistic approach to estate planning—addressing not only the legal aspects but also the crucial tax implications often overlooked by others.

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.

• Ambiguity: Avoid vague terms that trigger interpretation fights.
• Incapacity: verify mental state at signing.
• Errors: check for missing amendments often.

For California residents, understanding how intent, authority, and compliance interact is one of the most effective ways to protect family harmony and estate integrity. A will that anticipates probate scrutiny is far more likely to be honored as written and far less likely to become the source of unnecessary conflict.

Primary Legal Authorities Governing Probate and Estate Administration

• Probate & Local Court Rules:
  
  Riverside Superior Court – Probate Division
  
  Official Riverside County probate rules (Title 7), filing procedures, examiner notes, and specific protocols for remote appearances via the court’s designated platform for 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 (IOLTA).
• Judicial Council Forms & Self-Help:
  
  California Courts – Wills, Estates, and Probate
  
  State-issued probate forms and guidance, including small estate procedures ($208,850 limit), primary residence transfers under AB 2016 ($750,000 limit), and executor responsibilities.
• Federal Estate & Gift Tax Law:
  
  IRS Estate Tax Guidelines
  
  Federal rules governing estate and gift tax filing, including the permanent 2026 exemption of $15 million per individual (indexed for inflation).