Cost Difference Codicil vs New Will

Grace just called, frantic. She’d meticulously drafted a codicil to her trust, updating beneficiaries after a falling-out with her nephew. She thought she was saving time and money… until her attorney informed her the codicil was invalid because it wasn’t properly witnessed. Now, she’s facing the full cost of a new trust, plus the emotional strain of re-doing years of estate planning, all because of a technicality. A seemingly small mistake could cost her thousands.

Many clients ask whether updating an existing will or trust with a codicil is more cost-effective than creating an entirely new document. The answer, as with most legal matters, isn’t simple. While a codicil appears cheaper upfront, a flawed codicil can create far greater expenses down the road. Let’s explore the factors involved.

What Exactly Is a Codicil?

A codicil is a legal document that amends the terms of an existing will or trust. It doesn’t replace the original; it adds to or modifies it. Common changes include updating beneficiaries, changing executors, or altering specific bequests. It’s designed to be a streamlined approach to estate planning adjustments.

How Does the Cost Compare?

Generally, drafting a codicil is less expensive than drafting a new will or trust. Attorney fees for a simple codicil typically range from $300 to $800, whereas a comprehensive will or trust can easily cost $2,000 to $10,000 or more, depending on complexity. However, these are just starting points. If the changes are extensive or complex, the cost of a codicil can approach that of a new document. Furthermore, if a codicil is improperly executed – meaning it lacks the correct signatures, isn’t notarized when required, or contains ambiguous language – it can be challenged in probate court, negating any potential savings. 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.

When Does a New Will or Trust Make More Sense?

Several scenarios warrant a complete rewrite rather than a codicil. If you’ve experienced significant life changes – marriage, divorce, the birth of a child, or the purchase of a substantial asset – a new document provides a cleaner, more organized estate plan. Similarly, if you’re updating multiple provisions, it’s often more efficient and less prone to error to start fresh. 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.

The CPA Advantage: Beyond the Document

As both an Estate Planning Attorney and a Certified Public Accountant with over 35 years of experience, I bring a unique perspective to my clients’ needs. It’s not just about what assets are distributed, but how that distribution impacts taxes. Updating a will or trust, or even drafting a codicil, presents opportunities to minimize capital gains and maximize the step-up in basis for your heirs. Careful planning can save your family significant money in the long run. Properly structuring the estate can also help manage potential liabilities related to business ownership or complex investments.

What About LLCs and Business Interests?

If your estate plan involves Limited Liability Companies (LLCs) or other business entities, updating your governing documents is crucial. 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. Your will or trust should accurately reflect current ownership and control structures. Failing to do so can lead to disputes and delays in settling your estate.

Don’t Forget Digital Assets!

In today’s digital world, many clients hold significant wealth in online accounts – cryptocurrency, online brokerage accounts, email accounts containing important documents, and social media profiles. 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. This oversight can create significant frustration and legal hurdles for your loved ones.

Handwritten Codicils: A Risky Proposition?

California law does allow for handwritten codicils. However, they are held to a very strict standard. 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. I strongly advise against relying on handwritten codicils due to the high risk of ambiguity and potential challenges in probate. They’re simply too easy to invalidate.

Ultimately, the decision of whether to use a codicil or create a new will or trust should be made in consultation with a qualified estate planning attorney. We can assess your individual circumstances, identify potential risks, and develop a plan that protects your assets and provides peace of mind.

What standards do California judges use to determine a will’s true meaning?

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.

To ensure the will functions as intended, the executor must understand their fiduciary obligations, while the family should be prepared for the probate process required to enforce the document.

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:
  
  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).