Why Online Wills Often Fail: Common DIY Estate Planning Mistakes

Dan McKenzie • June 15, 2026

Planning for the future is one of the most responsible steps you can take for your family. If you enjoy packing up the gear for a weekend of camping in the beautiful Colorado mountains, you know that being prepared makes all the difference. Many smart families try to prepare by using online templates to write their own package. While it seems fast and cheap, hidden traps often cause major legal headaches later. Knowing the most common DIY estate planning mistakes can help you protect your hard-earned savings and your loved ones.

The Hidden Traps of Document Signing

A will is not legally valid just because you wrote it down. Colorado law has strict rules about how you must sign the document. One frequent error involves having the wrong witnesses. For example, a spouse who stands to inherit your property cannot be a legal witness. Another issue is the signing order. You and your witnesses must all be in the same room and sign at the same time. If people sign hours or days apart, the court may throw out the entire document. This leaves your family without the protection you intended.

Vague Language and Forgotten Assets

Online templates use generic text meant to fit everyone, but every family is unique. Unclear phrases often lead to confusion. When a will is confusing, a judge must step in to guess what you meant. This means your family could end up in an expensive court battle.


Additionally, many online forms lack a "residuary clause." This is a legal safety net that handles any property you did not explicitly name. Without it, your leftover assets might go to the wrong people through a default state process called intestacy. Modern templates also skip digital assets like online accounts or cryptocurrency, leaving them completely lost in cyberspace.

Life Changes and Moving Forward

Your life does not stand still, and your legal documents should not either. A DIY plan made years ago will not account for a new marriage, a divorce, or a new child. Failing to update your documents could mean your estate is distributed in ways that no longer make sense. If you want to avoid these common DIY estate planning mistakes, we are here to help. Our team serves families throughout Centennial and the entire Denver metro area with professional, custom legal plans.

Protect Your Family's Future

Protect your family with a plan that works when it matters most.  Go to our Contact page to schedule an attorney evaluation session, or call us at 720-821-7604 to set up your consultation in the Denver metro area.


The McKenzie Law Firm, LLC practices law exclusively in Colorado. This post is for general informational purposes only and does not constitute legal advice. Please consult a qualified attorney regarding your specific situation.

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