Dependent Audit
Verify your covered dependents by October 1
If you cover one or more dependents under the health plan, you will soon receive information about our upcoming Dependent Eligibility Audit.
This review helps ensure that only eligible dependents are enrolled, helping maintain the integrity and affordability of our benefits program.
Failure to provide the necessary documentation by October 1, 2026 may result in removal of unverified dependents from your coverage.
What to Expect
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- Watch for a letter with instructions.
- You will be asked to provide documentation to verify your dependent(s)’ eligibility.
- Be sure to respond by the stated deadline to avoid any impact to your dependents’ coverage.
Dependent eligibility verification required documents
Please provide legible copies of the documents indicated below (If originals are provided, they will not be returned). Click here to download a printable PDF list.
Spouse
A person to whom the member is legally married (same or opposite gender if applicable).A legally separated or ex-spouse may not be an eligible dependent. This is based on the Plan Document.
- Marriage Certificate (issued by state, county or vital records office, not the ceremonial copy). If you do not have the certificate in your own records, you may be able to order it online here: https://www.vitalchek.com/marriage-records
AND ONE of the following:
- Page 1 and signature page of member’s Federal Income Tax Return, as filed with the IRS, listing the spouse
- Page 1 and Certificate of Electronic Filing of member’s Federal Income Tax Return, as filed with the IRS, listing the spouse
- Current mortgage statement, home equity loan, lease agreement, or current Property Tax documents
- Automobile registration that is currently in effect under both names (member and spouse)
- Current credit card statement or bank account statement or utility bill under both names (member and spouse)
- Current designation as the primary beneficiary for life insurance or retirement benefits, or primary beneficiary designation under a member’s will
- Assignment of durable property power of attorney or health care power of attorney
NOTE: “Current” is defined as within the last 12 months.
Biological (natural) child up to age 26
A biological (natural) child of the member.
- Birth Certificate (issued by state, county or vital records office, not the hospital certificate). If you do not have the certificate in your own records, you may be able to order it online here: https://www.vitalchek.com/birth-certificates
Adopted child up to age 26
A legally adopted child or a child placed with the member in anticipation of legal adoption.ONE of the following legal documents:
- Certificate of adoption (court documents) signed by a judge showing that the participant has adopted the child
- Papers from the adoption agency showing intent to adopt
- International adoption papers from country of adoption
- Birth Certificate (issued by a state, county, or vital records office naming the adopted parents)
Stepchild up to age 26
Your stepchild. You must be married to the child’s biological (natural) parent.
- Marriage Certificate (indicating member’s spouse is married to member)
- Birth Certificate of stepchild (issued by a state, county or vital records office) listing spouse
Child for whom the member has become legal guardian
A child for whom the member has become the child’s court-ordered guardian.
- Court documents signed by a judge verifying legal custody
- Letter of guardianship issued by County Clerk
Child for whom the Plan has received a Qualified Medical Child Support Order
Any child the member is required to cover due to a Qualified Medical Child Support Order (QMCSO).
- Court documents signed by a judge
- Medical support orders issued by a State agency Parts A/B
Disabled dependent after age 26 (This must follow Plan Requirements)
An unmarried child who falls under one of the previously listed categories and who, due to a mental or physical disability, is unable to earn a living.
- The required document(s) for one of the dependent categories as noted above
AND ONE of the following:
- Letter of medical necessity from the attending physician to include diagnosis, specific explanation of disability, current functional deficits, the age the disability began prognosis and plan of care
- Notice of Determination from the Social Security Administration
How to Submit Documentation
Please provide the required documentation by October 1, 2026, using one of the following
methods:
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- Mail or deliver to: 11724 NE 195th Street, Suite 300, Bothell, WA 98011-8242
- Fax to: 206-374-5950
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