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Illumina Families: Why a Letter of Instruction Can Simplify Estate Planning

Healthcare Provider Update: Healthcare Provider for Illumina Illumina, a leader in genomic sequencing technology, utilizes various healthcare providers for its insurance needs. While specific provider details are not universally captured, notable healthcare partners have included large insurers like UnitedHealthcare and Aetna, which typically offer comprehensive plans tailored to employees in the biotech and pharmaceutical sectors. Potential Healthcare Cost Increases in 2026 for Illumina As a result of anticipated increases in healthcare costs in 2026, Illumina employees may face significantly higher premiums due to a perfect storm of factors impacting the Affordable Care Act marketplaces. With some states projected to experience premium hikes upwards of 60%, and up to 92% of ACA marketplace enrollees potentially seeing increases in out-of-pocket costs exceeding 75% without the renewal of federal subsidies, Illumina's workforce will need to brace for substantial financial challenges. Coupled with rising medical cost inflation and aggressive rate increases from major insurers, these shifts will pose potential strains on employee healthcare budgets and require strategic planning to manage escalating expenses effectively. Click here to learn more

'Illumina employees can bring more clarity to their estate plans by using a well-organized letter of instruction, which is a practical way to help families navigate important decisions with greater confidence.' — Michael Corgiat, a representative of The Retirement Group, a division of Wealth Enhancement.

'Illumina employees can create a smoother transition for their families by using a clear letter of instruction, which can be an effective way to support loved ones during estate administration.' — Brent Wolf, a representative of The Retirement Group, a division of Wealth Enhancement.

In this article, we will discuss:

Why a letter of instruction can support your estate plan.
What to include in a letter of instruction.
How Illumina employees can use a letter of instruction to help streamline estate administration.

Important Lessons

Estate planning documents like a will and a revocable trust are important, but they might not give your family all the information they need to handle your affairs when you pass away, especially for Illumina employees with complex benefits.

In addition to an estate plan, a letter of instruction can offer your loved ones more information about your assets and personal preferences.

A letter of instruction can contain additional details, such as burial plans and the placement of essential documents, but it should not conflict with your estate planning documents.

Your loved ones might not know who to call, where to find your assets, or how to recognize reputable creditors if something were to happen to you today. By providing clear, supplemental guidance, a letter of instruction can help reduce the stress and work involved in the estate administration process.

A Letter of Instruction: What Is It?

A letter of instruction is an informal document outlining your assets and last wishes, sent to an executor, personal representative, or family members. It adds helpful information not included in legally binding estate planning documents like a will or revocable trust. For Illumina employees managing multiple retirement and savings plans, a letter of instruction can help simplify administration for family members, even though it is not legally required.

Since this letter is informal, it can be updated without consulting an attorney as circumstances change over time. It can contain supplementary information that supports your estate plan, but it should not contradict anything in your legal estate planning documentation.

How to Compose an Instructional Letter

Funeral Plans

You might provide information about your preferred funeral or burial type, funeral home, clergy member, music, speakers, or tribute. You can also include details about pre-paid or pre-arranged funeral or burial plans and where related paperwork is located. Some people also provide biographical details—something Illumina retirees can include for clarity.

Crucial Records

You can note the location of your Social Security card, recent bank account statements, deeds, titles, mortgage documents, important records, and estate planning documents. Some individuals also indicate where to find recent tax returns, which may help identify assets or income sources. If these documents are stored in a lockbox or vault, providing access instructions may be helpful.

Contact Details for Financial Representatives

The names and contact information for bankers, tax preparers, lawyers, insurance agents, real estate agents, and financial advisors can be included in the letter. These professionals can assist with background information, asset identification, account transfers, and final tax filings.

Details of the Assets

You can list your assets’ locations, titling, identifying details, and current values. This may include real estate, stock certificates, savings bonds, annuities, time shares, bank accounts, brokerage accounts, retirement accounts, company interests, safe deposit boxes, life insurance, and personal belongings with monetary or sentimental value.

Computer Files and Online Accounts

You may wish to list your digital files and accounts and designate a successor in your estate planning documents to manage them, since state and federal laws may limit access without written approval. For Illumina retirees who store retirement and benefits information online, this documentation may help reduce challenges.

Details of Debt

You can include information regarding your debts, such as account numbers, balances, statements, and lender contact details.

Beneficiary Details

The beneficiaries listed in your estate plan, along with their contact details, may be included in the letter. This makes it easier for an executor to locate and communicate with those who will receive assets—an important step for families with Illumina retirement accounts.

Pets

You can specify who you want to care for your pets and any specific instructions if your estate documents do not mention them. You may also include your veterinarian’s contact information.

Distribution List for Personal Property

Some states allow individuals to draft a separate document listing specific items of tangible personal property and their intended recipients, as long as the will references the list. Even in states where this is not legally binding, a letter of instruction can still guide your executor and help minimize disagreements.

Private Notes and Clarification of Goals

Some people include private notes or explanations for their decisions regarding inheritance or financial principles. Although not legally binding, these notes can help prevent misunderstandings.

What Does a Letter of Instruction Not Need to Include?

A letter of instruction should not repeat information already found in your estate planning documents. It is intended to provide additional details only.

It also should not be used to make changes to legally enforceable estate documents. Informal updates are not binding and may create conflicts.

Where to Store Your Instruction Letter

You can keep a copy of the letter with your estate planning papers, provide one to your lawyer, or place it somewhere your family is likely to look first. You can also share a copy with your executor and discuss it with them if you feel comfortable. Updating the letter each year is useful as assets and personal information change—particularly for Illumina employees with evolving retirement benefits.

Do You Need Guidance?

The Retirement Group can help you prepare for retirement if you are updating or creating your estate plan and want assistance organizing your family’s financial information. Call us at (800) 900-5867 .

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Sources:

1. Parker, Craig. “How to Write a Letter of Instruction: A Step-by-Step Guide.” Trust & Will, n.d.,
https://trustandwill.com/learn/how-to-write-a-letter-of-instruction . Accessed 1 Dec. 2025.

2. AARP Education & Outreach. “State Your Intentions With a Letter of Instruction.” AARP, 9 Nov. 2022,
https://www.aarp.org/money/retirement/letter-of-instruction/ . Accessed 1 Dec. 2025.

3. Kuffel, Hunter. “Writing a Letter of Instruction for Your Estate Plan.” SmartAsset, 12 Oct. 2025,
https://smartasset.com/estate-planning/letter-of-instruction . Accessed 1 Dec. 2025.

4. McDonald Jacobs. “Letter of Instruction in Estate Planning.” McDonald Jacobs: Portland, Oregon Accountants & Business Consultants, n.d.,
https://www.mcdonaldjacobs.cpa/letter-of-instruction-in-estate-planning/ . Accessed 1 Dec. 2025.

What is the 401(k) plan offered by Illumina?

The 401(k) plan at Illumina is a retirement savings plan that allows employees to save a portion of their paycheck before taxes are taken out, helping them prepare for retirement.

How does Illumina match employee contributions to the 401(k) plan?

Illumina offers a matching contribution to the 401(k) plan, where the company matches a percentage of employee contributions up to a certain limit, enhancing employees' savings potential.

When can employees at Illumina start contributing to the 401(k) plan?

Employees at Illumina can begin contributing to the 401(k) plan after completing their initial eligibility period, which is typically outlined in the employee handbook.

Does Illumina offer a Roth 401(k) option?

Yes, Illumina provides a Roth 401(k) option, allowing employees to contribute after-tax dollars, which can grow tax-free for retirement.

What investment options are available in Illumina's 401(k) plan?

Illumina's 401(k) plan includes a variety of investment options, such as mutual funds, target-date funds, and other investment vehicles to help employees diversify their portfolios.

Is there a vesting schedule for Illumina's 401(k) matching contributions?

Yes, Illumina has a vesting schedule for matching contributions, which means that employees must work for a certain period to fully own the matched funds.

Can employees at Illumina take loans against their 401(k) savings?

Yes, Illumina allows employees to take loans against their 401(k) savings, subject to certain terms and conditions outlined in the plan documents.

What happens to the 401(k) plan if an employee leaves Illumina?

If an employee leaves Illumina, they have several options for their 401(k) plan, including rolling it over to another retirement account, leaving it with Illumina, or cashing it out.

How often can employees at Illumina change their 401(k) contribution amounts?

Employees at Illumina can change their 401(k) contribution amounts during designated enrollment periods or as permitted by the plan, typically on a quarterly basis.

Does Illumina provide educational resources about the 401(k) plan?

Yes, Illumina offers educational resources and workshops to help employees understand their 401(k) plan options and make informed investment decisions.

With the current political climate we are in it is important to keep up with current news and remain knowledgeable about your benefits.

Name of Pension Plan: Illumina Retirement Plan Years of Service and Age Qualification: Employees are eligible for pension benefits if they have at least 5 years of service and are at least 55 years old. Pension Formula: The formula typically involves a combination of years of service and average salary. Exact details may vary based on individual circumstances. Plan Documentation: 401(k) Plan Name of 401(k) Plan: Illumina 401(k) Savings Plan Eligibility: All employees who meet the minimum service requirement, typically 30 days of employment. Plan Contributions: Employees can contribute up to the annual IRS limit, with potential matching contributions from Illumina.

Illumina announced a restructuring plan in early 2024, which includes significant layoffs and a shift in its business strategy. The company is reducing its workforce by approximately 8% to streamline operations and focus on core business areas. This decision follows a period of slower-than-expected growth and increasing pressure on its financial performance. The restructuring is part of Illumina’s effort to cut costs and improve profitability amidst a challenging economic environment.

Stock Options: Illumina offers stock options as part of its employee compensation package. The stock options are generally available to senior executives and key employees, with grants typically made based on performance and tenure. RSUs: Restricted Stock Units (RSUs) at Illumina are provided to a broader range of employees, including those at various levels of management. RSUs usually vest over a period of time, rewarding employees for their continued service and performance

Health Benefits Overview: Illumina offers a comprehensive benefits package that includes medical, dental, and vision coverage. Employees have access to various health plans, including HMO and PPO options. The company also provides mental health support through an Employee Assistance Program (EAP) and wellness resources.