Dependent Verification Documentation

My Favorites

Understanding Dependent Verification

To help ensure that we are covering only those dependents in 2026 who meet our eligibility requirements, and that our plans remain cost-effective for everyone, you will need to provide documentation for dependents enrolled in Entegris plans.

We will conduct a full dependent verification audit in early 2027 – more details will be shared closer to its start. We recommend using Annual Enrollment to review the dependents you cover, and confirm each one is still eligible.

If you enrolled dependents without documentation prior to Open Enrollment in 2026, you will need to provide eligibility documentation as outlined in the table below. If you add new dependents during open enrollment and upload documentation then, no action will be needed for the audit.

Dependent Verification Document Requirements

Dependent

Required Documents

Spouse

Copy of marriage certificate and a tax return or joint financial statement

Domestic Partner

A newly completed Domestic Partner Affidavit and two joint financial statements*

Child
(Natural)

Birth certificate

Child
(Adopted or in the Process of Being Adopted)

Birth certificate listing the employee’s name or a signed court order

Stepchild

State- or county-issued birth certificate showing the names of the child and spouse, and a copy of your marriage certificate showing your and your spouse’s names

Child of a Domestic Partner

State- or county-issued birth certificate showing the names of the child and domestic partner, and a newly completed Domestic Partner Affidavit

Child for Whom You or Your Spouse Have Legal Guardianship, Legal Custody, or Conservatorship

Signed court order

* Joint financial statements include:

  • Proof of shared residence, such as a joint mortgage statement or rental agreement 
  • Automobile title or registration showing joint ownership of a vehicle 
  • Joint checking, bank, or investment account statement 
  • Joint credit account statement 
  • A will and/or life insurance policy designating the other individual as the primary beneficiary 
  • Utility bill 
  • Joint automobile insurance policy

Notifications

Events

Support Chat