Open Enrollment for your 2021 benefits begins October 9 and ends October 23, 2020. This is your annual opportunity to review your needs and select the benefits that provide the best coverage and value for you and your family.

Review this page to find out what you need to know and what you need to do during Open Enrollment:

2021 changes

Here's how you can learn more.

How to enroll

Enrolling is easy! Find out how.

Decision support

These tools and resources will help you make informed decisions about your benefits.

Benefit options

See the benefits available to you in 2021.

2021 Benefit Changes

Every year, we take a close look at our benefits program and consider changes that could better support your total well-being, while also meeting our business and health care reform obligations.

To learn about the benefit changes for 2021, refer to the mailer that you received at home and/or attend an open enrollment webinar.

How to Enroll

You have two ways to enroll — online or by phone.

  • Go to the Mercer Marketplace 365+ website – Enroll online at your convenience, any time of day or night. The site will guide you through the benefits enrollment process every step of the way.
  • Call a Mercer Marketplace 365+ benefit counselor at 888-281-3534 – Representatives are available to help you Monday through Friday, 4 a.m. to 6 p.m. Pacific Time, and Saturday, 7 a.m. – 11 a.m. Pacific time.

After Open Enrollment ends, you cannot change your benefit elections unless you experience a qualifying life event, such as a birth or a marriage.

Waiving coverage?

Be sure to submit a waiver form via email to by the end of your enrollment period. Forms are available on Mercer Marketplace 365+ by following this path: Menu > Documents > Health & Benefits > 2021 Medical Waiver Form.

Decision support

Choosing the right plans is important for both your health and your financial well-being. These resources will help you understand your options and select the ones that provide the right coverage and value for you and your family.

  • Open Enrollment Mailer – Read the mailer you received at your home for highlights of what’s changing for 2021, along with key dates and action steps for enrollment.
  • Health Plan Chooser – Compare total medical plan costs for people with situations similar to yours.
Your enrollment checklist

Use this checklist to make the most of your 2021 opportunity:


Learn about your benefit options, paying special attention to the changes coming next year.

Think about your coverage needs, including how much health care you anticipate needing and whether your current life and disability insurance provides enough protection.

Make sure your dependent information is correct and all your dependents are still eligible.

Update your FSA enrollment and/or HSA contribution amount — they don’t carry over to the next year.

Review your beneficiaries — it’s a good idea to review your beneficiary information (especially if your personal circumstances have changed) and make updates as needed.

Complete your benefits enrollment by October 23, 2020.

TIP: Think about the whole cost.

When choosing a medical plan, it’s important to think about the whole cost of coverage — the amount you’ll spend out of your paycheck, as well as out of your pocket (copays, deductibles, and coinsurance).