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High-Deductible Health Insurance Plan vs. Traditional: Which to Pick

If you are offered a high-deductible health insurance plan with a health savings account, it's important to understand both the insurance itself and the potential financial benefits of an HSA.

If you’re in the process of choosing health benefits coverage for 2019, you may be one of many people who have the option to select a high-deductible health plan (HDHP). By enrolling in an HDHP, you are also eligible to contribute to a health savings account (HSA), either through your employer or on your own. The HSA is intended to pay for out-of-pocket medical expenses, such as the deductible — either now or in the future.

Before we address the health coverage decision, some background on HSAs may be helpful.

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HSAs offer a “triple tax benefit” for federal taxes:

  • Contributions reduce your taxable income.
  • Growth of the account is tax-deferred.
  • Distributions for qualified medical expenses are tax-free.

This essentially combines the benefits of Roth and pretax retirement account strategies. However, you don’t want to tap into the HSA for non-medical expenses or you could trigger a 20% penalty and ordinary tax.

An HSA is owned by the individual. It’s your money, so you never forfeit an unused balance or lose it if you change employers. That’s a significant advantage over health reimbursement arrangements (HRAs) and flexible spending accounts (FSAs).

Key Facts About HSAs and HDHPs for 2019

 IndividualFamily
HDHP minimum deductible$1,350$2,700
HDHP maximum out-of-pocket expenses$6,750$13,500
Maximum HSA contribution*$3,500$7,000

*Can contribute an additional $1,000 if 55 or older.

High Deductible vs. Low Deductible?

If you have the choice between an HSA-eligible HDHP and a traditional, low-deductible health plan, how do you decide? Remember: The choice between benefit plans is primarily a health insurance decision.

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The tax advantages of an HSA can certainly be significant for people who have the ability to save. But first, you need to make sure the HDHP makes sense for your situation.

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With a typical health plan, either HDHP or traditional, the total cost you pay includes three main components: the insurance premium, the deductible and the coinsurance (a percentage you pay after meeting the deductible). The tradeoff is that the HDHP has lower premiums than a traditional plan, but a higher deductible, and often higher coinsurance. The higher your expected medical expenses, the more you should favor a traditional plan.

Your employer may provide tools to help you assess which plan is best for you, or you can compare the plans based on your estimated level of medical expenses. In many cases, the break-even point — the level of medical expenses where the plans result in the same cost to you — equals approximately the difference in premiums plus the traditional plan deductible.

You’ll also want to consider coinsurance, prescription cost structures, out-of-network provider rules, and any HSA/HRA contributions made by your employer. Since medical needs are hard to predict, you should also compare the plans’ out-of-pocket maximums.

Comparing the Tax Benefits

For many people, the insurance comparison is where the analysis should end. If you have access to an FSA with the traditional plan, in the short term you get similar tax benefits as with a high-deductible plan and an HSA.

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If you’re able to invest the HSA for the long term, consider the tax benefits.

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If you can invest for the long term — as opposed to using the HSA for current-year medical expenses — this is when you reap the full triple tax benefit.

An HSA has better tax benefits than either Roth or pretax retirement savings accounts, provided the distributions are used for qualified medical expenses. The value of those tax benefits depends primarily on your time horizon, marginal tax rate and investment returns. We estimated the value of a $3,500 HSA contribution, compared to the other retirement savings options, using conservative assumptions.

Present Value of a $3,500 HSA Contribution, vs. Other Tax-Advantaged Savings

Years to RetirementMarginal tax rate (federal plus state)
15%25%35%45%
5$825$975$1,350$1,700
15$925$1,075$1,475$1,875
25$1,000$1,175$1,625$2,050
35$1,100$1,300$1,775$2,275

The chart is for illustrative purposes only and is not indicative of any specific investment. Assumptions: 5% return; 4% discount rate; marginal FICA tax rate of 7.65% for the 15% column and 1.45% for the other columns. The employer does not match contributions (or the match has already been maximized). Values assume investments are held until retirement age and tax rates stay constant. Rounded to the nearest $25.

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To understand what that chart is saying, here’s an example. Suppose your marginal tax rate is 25%, you’re 15 years from retirement, and you’re able to invest the 2019 HSA contribution of $3,500 (holding it until retirement). This single HSA investment is worth around $1,075 more than a comparable retirement plan contribution, in today’s dollars.

So even if you estimate that the traditional coverage would cost you $1,000 less in 2019 based on your projected expenses, the additional tax benefit means a high-deductible plan with the HSA may make sense.

As you consider making the switch to an HSA-eligible HDHP, keep in mind:

  • You may benefit from consulting with a tax adviser or financial planner.
  • You shouldn’t use your HSA as an emergency fund, given the 20% penalty on early non-qualified withdrawals.
  • Generally, it makes sense to take advantage of your company’s retirement plan matching contribution before investing for the long term in an HSA. If you have to choose between the two, ask yourself whether you’re really likely to keep the HSA investment untouched.

The HSA can be a powerful savings tool — but make sure it’s right for you.

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About the Author

Roger A. Young, CFP®

Senior Financial Planner, T. Rowe Price

Roger Young is Vice President and senior financial planner with T. Rowe Price Associates in Owings Mills, Md. Roger draws upon his previous experience as a financial adviser to share practical insights on retirement and personal finance topics of interest to individuals and advisers. He has master's degrees from Carnegie Mellon University and the University of Maryland, as well as a BBA in accounting from Loyola College (Md.).

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