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Pretax Health Care Accounts

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Contributing pretax contributions toward a Flexible Spending Account or a Health Savings Account lowers your taxable income.

These accounts are a great way to pay for qualifying expenses. While they’re similar, they are not the same. Learn more about each and then decide whether a pretax account is a good fit for your needs.

Health Savings Account (HSA)

When you enroll in an HSA medical option, Oncor helps you save by making automatic contributions to your HSA based on your coverage level.

Be sure to open an account in your name to receive the HSA contribution from Oncor.  This is very important: No action = No contributions.

You also may:

  • Earn additional dollars by completing wellness activities
  • Contribute your own money pre-tax through payroll deductions

If you’re a new HSA participant, you’ll need to open a personal HSA at Fidelity. There are no fees to open a Fidelity HSA. If you already have a Fidelity HSA, you don’t need to open a new one.

  1. Go to NetBenefits.com
  2. Follow the prompts to open your individual HSA
  3. Choose how much you want to contribute (optional)
  • Set up your account between November 1 and December 31 after Annual Enrollment
  • Elections take effect January 1, 2026
  • You can change your HSA contributions anytime during the year
  • If you’ve already enrolled and contributing, your elections will automatically roll over for the next year.

You are not eligible to contribute to an HSA or enroll in an HSA medical option if you:

  • Have other non-high-deductible medical coverage
  • Are enrolled in Medicare Part A or B, Tricare, or tribal health plans
  • Receive VA medical benefits
  • Are covered under a spouse’s Health Care FSA or medical plan

Check IRS Publication 969 for full details. If you enroll in Medicare while still working, your HSA contributions may become taxable and subject to IRS penalties. For more details, refer to IRS Publication 969.

Your dependents can be enrolled in the HSA medical option—even if they have other coverage—as long as you are not covered under their plan.

If you’re enrolled in an HSA medical option and will turn 65 this year:

  • All Oncor HSA contributions (automatic and incentives) will be paid in your paycheck with taxes withheld
  • You may still contribute to your HSA pre-tax—up to IRS limits

If you’re 65+ and still working:

  • You can stay in the HSA medical option
  • Do not enroll in Medicare Part A or B if you want to keep contributing to your HSA
  • Contributions after Medicare enrollment may be taxable and penalized
  • Enroll in Medicare within three months of retiring to avoid penalties

Medicare Part A can apply retroactively up to six months. That means:

  • You cannot make HSA contribution for those months
  • Any contributions made during that retroactive window must be withdrawn by April 15

Withdraw HSA contributions at fidelity.com/go/hsa/why-hsa or call Fidelity at 1.866.402.7610. We also recommend that you consult a tax specialist if you’re unsure how this applies to you.

It’s a smart financial move to set aside dollars in your HSA since you can:

  • Reduce taxable income through payroll
    deductions
  • Invest your funds and watch them grow tax-free
  • Pay no taxes on qualified medical expenses

Plus, there are other advantages that many may
not realize they have:

  • HSAs are portable. Your HSA remains yours permanently, even if you change jobs or retire. Whether you want to grow your funds to pay for Medicare premiums or help pay for family deductibles in the future, your HSA provides that flexibility.
  • You choose when to use the funds. Use them to pay current medical expenses or save the funds for future healthcare needs (including retirement). Unused funds can be invested to maximize growth of your account over time.

Use HSA Funds Now

  • Doctor visits and specialists
  • Prescription medications
  • Dental and vision expenses
  • Over-the-counter medications
  • Medical equipment

Save Them for Later

  • Retirement healthcare costs
  • Medicare premiums
  • Long-term care expenses

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