If you’re handling a probate case in Colorado and need to notify beneficiaries, you’re not just checking a box you’re fulfilling a legal requirement that protects everyone involved. Skipping or rushing this step can delay the estate administration, trigger objections, or even lead to personal liability for the personal representative. Colorado law is clear: beneficiaries must be informed early and correctly, and how you do it matters as much as when.

Who counts as a “beneficiary” under Colorado probate law?

In Colorado, a beneficiary includes anyone named in the will to receive property, plus heirs-at-law if there’s no valid will (intestate succession). That means children, surviving spouses, parents, or siblings may all need formal notice even if they’re not expecting anything or seem uninvolved. It also includes people named in trusts funded by the estate, or those with claims against the estate who’ve filed a demand. You can’t assume someone “doesn’t need to know.” If they’re legally entitled to notice, they get it.

When exactly do you have to send notice?

You must mail written notice to all known beneficiaries within 30 days after the court admits the will (or appoints a personal representative in an intestate case). This deadline is firm. Waiting until assets are distributed or until someone asks is too late. The clock starts the day the court issues letters of appointment or enters the order admitting the will. Missing this window doesn’t invalidate the notice, but it can weaken your position if someone later challenges the process.

What must the notice include?

Colorado doesn’t prescribe one exact form, but the notice must contain specific information: the name of the decedent, the date of death, the case number and court location, the name and contact info for the personal representative, and a statement that the person is entitled to object to the appointment or the will within a set time (usually 30 days). You’ll also want to briefly explain next steps like when the inventory is due or how to review estate documents. For a full list of required elements, see what to include in probate communication for beneficiaries.

How should you deliver the notice?

First-class U.S. mail is acceptable and most common but certified mail with return receipt requested is strongly recommended. Why? Because it creates proof you sent it, and when. Email or text alone doesn’t satisfy Colorado’s notice requirements unless the beneficiary has previously agreed in writing to electronic service. Hand delivery works only if you get a signed acknowledgment. For practical tips on choosing the right method, see the proper way to contact beneficiaries during probate in Colorado.

What happens if a beneficiary can’t be found?

If you’ve made reasonable efforts checking prior addresses, reaching out to family, searching public records and still can’t locate someone, Colorado allows “notice by publication” in a local newspaper once a week for three weeks. But before you go that route, document every attempt you made. The court may ask for that record. You can’t skip direct notice just because it’s inconvenient. More details on locating hard-to-find heirs are covered in steps to inform heirs about the Colorado probate process.

Common mistakes people make

  • Sending notice before the court officially opens the case (it’s not valid until appointment or admission)
  • Using vague language like “you may be entitled to something” instead of stating clearly that the person is a beneficiary
  • Forgetting to notify contingent beneficiaries those who inherit only if a primary beneficiary dies first
  • Mailing to an old address without confirming current contact info, especially for beneficiaries who moved or live out of state
  • Assuming a family member already “knows” and skipping written notice entirely

What about timing for later notices?

The initial notice is just the start. Colorado law also requires updates like when the estate inventory is filed, when major assets are sold, or before final distribution. These follow different deadlines and formats. The Colorado estate distribution notification requirements spell out what’s needed at each stage, including how much detail to share and how much time beneficiaries have to respond.

Next step: Get it right the first time

Before mailing anything, double-check names and addresses against the will and any trust documents. Use certified mail for your first notice. Keep copies of everything including the green return receipt cards and store them with your probate file. If you’re unsure whether someone qualifies as a beneficiary, or whether your notice meets legal standards, consult a Colorado probate attorney. You can also review the official guidance from the Colorado Judicial Branch Probate Notice Form JDF 999. Then, file your completed notice with the court and move forward with confidence.