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Are Ghost Taxes Creeping Into Your University of Missouri Retirement Plan?

'Many University of Missouri employees underestimate how much “ghost taxes” can erode retirement income. Understanding these hidden thresholds today can help you make more thoughtful decisions for tomorrow’s financial well-being,' — Michael Corgiat, a representative of The Retirement Group, a division of Wealth Enhancement.

'Many University of Missouri employees are surprised by how quickly hidden taxes like AMT, NIIT, and IRMAA can reduce retirement income, making it important for retirees to stay informed and thoughtfully plan so these costs don’t catch them off guard.' — Brent Wolf, a representative of The Retirement Group, a division of Wealth Enhancement.

In this article, we will discuss:

The five “ghost taxes” that may unexpectedly impact retirement income.
How these taxes can affect University of Missouri employees and retirees.
Strategies to better understand and prepare for these tax implications.

How University of Missouri Employees Can Prepare for the Five “Ghost Taxes” That Could Haunt Retirement

There are several lesser-known surcharges and thresholds that may unexpectedly increase your tax bill in retirement, even if you already understand federal, state, and local tax obligations. These include the Alternative Minimum Tax (AMT), the Net Investment Income Tax (NIIT), the Medicare Income-Related Monthly Adjustment Amount (IRMAA), the Social Security “tax torpedo,” and the new senior deduction. Because many of these thresholds are not adjusted for inflation, they increasingly impact retirees, including those from University of Missouri.

1. AMT: Alternative Minimum Tax

The AMT is a parallel tax system designed to make sure higher-income individuals pay at least a minimum amount of taxes. It has its own tax brackets, forms, and rules, with a top rate of 28%. ¹ Some deductions available under the traditional tax system are limited under AMT rules.

For 2025, the AMT exemptions are:

- $88,100 for single filers (phasing out at $626,350)
- $137,000 for married couples filing jointly (phasing out at $1,252,700)

High income, exercising incentive stock options, large capital gains, or numerous itemized deductions may trigger AMT. Even though long-term capital gains receive preferential tax treatment, they can still reduce your AMT exemption. If AMT is paid in one year, a tax credit may be available in future years when AMT is not owed.

2. NIIT: Net Investment Income Tax

The NIIT applies a 3.8% tax on net investment income when modified adjusted gross income (MAGI) exceeds:

- $200,000 for single filers
- $250,000 for married couples filing jointly ²

This tax applies to dividends, interest, rental income, gains from home sales, and capital gains beyond exclusion limits. Withdrawals from 401(k)s and traditional IRAs are not directly taxed by NIIT, but they may increase MAGI and cause other investment income to be taxed.

Strategies to limit exposure include contributing to traditional retirement accounts, using health savings accounts (HSAs), and tax-loss harvesting. For instance, tax-loss harvesting allows you to use up to $3,000 in capital losses annually to offset ordinary income. ³

For individuals age 70½ or older looking to reduce MAGI, qualified charitable distributions (QCDs) may help. QCDs allow you to donate to qualified charities on a tax-free basis directly from your IRA, satisfying required minimum distribution (RMD) rules without bringing distributions into income. In 2025, up to $108,000 may be donated tax-free. ⁴

3. IRMAA: Income-Related Monthly Adjustment Amount

IRMAA adds a surcharge to Medicare Parts B and D premiums for higher-income retirees and is based on MAGI from two years prior.

For 2025, IRMAA applies when MAGI exceeds:

- $106,000 for single filers
- $212,000 for married couples filing jointly

Even a small increase above these limits can place retirees in a higher premium bracket. Tax-exempt interest from municipal bonds is included in MAGI for IRMAA purposes. Premiums and IRMAA can be deducted from Social Security payments or paid directly. Social Security allows individuals experiencing major life changes, such as retirement or death of a spouse, to request revised IRMAA calculations.

4. The Social Security “Tax Torpedo”

Social Security benefits may be taxable depending on “provisional income,” which includes:

- Adjusted gross income
- Non-taxable interest
- One-half of Social Security benefits

If provisional income exceeds:

- $34,000 for single filers
- $44,000 for married couples filing jointly

...then up to 85% of Social Security benefits may be taxable. ⁵

Delaying Social Security up to age 70 increases benefits by 8% per year beyond full retirement age.

5. The 2025–2028 New Senior Deduction

From 2025 to 2028, individuals age 65 and older may qualify for a new senior deduction:

- $6,000 for single filers
- $12,000 for married couples filing jointly

This deduction phases out at:

- $75,000 MAGI for single filers
- $150,000 MAGI for joint filers

This is separate from the standard senior deduction, which currently adds $2,000 for individuals or $3,200 for married couples age 65 or older.

Need Help Navigating These Taxes?

Understanding how AMT, NIIT, IRMAA, Social Security rules, and senior deductions affect retirement income can be complex, especially for University of Missouri retirees managing pensions, 401(k)s, and other investments. The Retirement Group can help you better understand how these tax considerations relate to your retirement planning. Call (800) 900-5867 for guidance.

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Articles you may find interesting:

Sources:

1. Tax Foundation. “ 2026 Tax Brackets .” 9 Oct. 2025.

2. Gravelle, Jane G., and Don J. Marples. The 3.8% Net Investment Income Tax: Overview, Data, and Policy Options . Congressional Research Service, 30 June 2023, crsreports.congress.gov/product/pdf/R/R41413.

3. IRS. ' Topic no. 409, Capital gains and losses .' 12 Sep. 2025.

4. Wealth Enhancement. ' 7 Tax Moves to Consider Before The End of The Year ,' by Mary Taliaferro, CFP. Nov. 5, 2025.

5. Investopedia. ' Provisional Taxes: What They Are and How They Work ,' by Julia Kagan. 4 Sep. 2025.

How does the eligibility criteria for the Defined Benefit Retirement Plan at the University of Missouri System differ for Level One and Level Two members, particularly in regard to their hire or rehire dates?

Eligibility Criteria for Level One and Level Two Members: Level One members are employees hired before October 1, 2012, or those rehired before October 1, 2019, who had earned a vested benefit but did not receive a lump sum. Level Two members are those hired or rehired between October 1, 2012, and October 1, 2019, without eligibility for Level One benefits. Employees hired after October 1, 2019, do not accrue service credit under the DB Plan(University of Missouri …).

In what ways do service credits accumulated at the University of Missouri System impact an employee's retirement benefits, and how can employees ensure that they effectively maximize their service credit over the years?

Impact of Service Credits on Retirement Benefits: Service credits are critical in calculating retirement benefits at the University of Missouri System. Employees accumulate service credits based on their years of service, which directly affect their pension calculations. Maximizing service credits involves consistent full-time employment without breaks, as any leave of absence or part-time status may impact the total service credits earned(University of Missouri …)(University of Missouri …).

What are the various options available to employees at the University of Missouri System for receiving their retirement benefits upon reaching normal retirement age, and how do these options influence long-term financial planning for retirement?

Retirement Benefit Options: Upon reaching normal retirement age, employees can choose between a Single Life Annuity or a Joint and Survivor Annuity, both with options for lump-sum payments of 10%, 20%, or 30% of the actuarial present value. These choices influence monthly payout amounts, and selecting a lump sum reduces future monthly benefits proportionally(University of Missouri …).

With respect to the University of Missouri System's Defined Benefit Plan, how are employees' contributions structured, and what implications does this have for their overall retirement savings strategy?

Employee Contributions: Employees contribute 1% of their salary up to $50,000 and 2% for earnings beyond that threshold. This structure helps fund the DB Plan, with the University covering the majority of the cost. Employees need to factor in these contributions as part of their overall retirement savings strategy(University of Missouri …).

How can employees at the University of Missouri System assess their eligibility for early retirement benefits, and what considerations should be taken into account when planning for an early retirement?

Early Retirement Eligibility: Employees may retire early if they meet specific criteria: at least 10 years of service credit for ages 55–60 or at least 5 years of service credit for ages 60–65. Early retirees will receive a reduced benefit to account for the longer payout period(University of Missouri …).

What tax implications should employees of the University of Missouri System be aware of when it comes to distributions from their retirement plans, and how can they effectively navigate these implications?

Tax Implications of Retirement Plan Distributions: Distributions from the University of Missouri System’s DB Plan are subject to federal taxes. Employees can mitigate tax burdens by electing to roll over lump-sum distributions to a qualified retirement account, such as an IRA, to avoid immediate tax liability(University of Missouri …).

What are the policies regarding the continuation of benefits for employees who leave the University of Missouri System, particularly for those who are not vested or are classified as non-vested members?

Non-Vested Employee Policies: Employees who leave the University before vesting in the DB Plan (fewer than 5 years of service) are not eligible for retirement benefits but can receive a refund of their contributions. These non-vested employees must decide whether to receive their refunded contributions as a lump sum or through a rollover to another retirement account(University of Missouri …).

How might changes in employment status, such as taking a leave of absence or returning to work after a break, affect the service credit calculation for an employee at the University of Missouri System?

Impact of Employment Status Changes on Service Credit: Employees who take leaves of absence or return after breaks in employment may experience reductions in service credit. However, certain types of leave, such as military service or medical leave, may allow employees to continue earning service credit(University of Missouri …)(University of Missouri …).

In the event of an employee's death prior to retirement, what benefits are available to their survivors under the University of Missouri System's Defined Benefit Plan, and how can members ensure their wishes are respected?

Survivor Benefits: In the event of an employee’s death before retirement, survivors may be eligible for either a lump sum or monthly payments. Employees can designate beneficiaries to ensure that their wishes are honored, providing financial protection for dependents(University of Missouri …).

How can an employee at the University of Missouri System contact the Human Resources Service Center to obtain personalized assistance regarding their retirement options and any inquiries related to their retirement plan details? These questions require detailed answers and are designed to facilitate a comprehensive understanding of retirement processes and options for employees of the University of Missouri System.

Contacting HR for Assistance: Employees can contact the Human Resources Service Center for personalized assistance regarding their retirement options by emailing hrservicecenter@umsystem.edu or visiting the myHR portal for further details(University of Missouri …).