The Four Hidden Retirement Expenses That Could Derail Your Plan

October 9, 2026

Quick Summary

Most retirement conversations focus on how much you've saved and how your investments are performing. Far fewer address the four expenses that can quietly erode even a well-funded retirement: taxes, inflation, healthcare, and longevity. In this post, we walk through why each of these deserves its own place in your plan, and what a comprehensive strategy looks like when it accounts for all four. For a deeper look at how required minimum distributions fit into the tax picture, see our related post on RMDs. If you'd like a personalized look at your own plan, we offer a free B.O.S.S. Retirement Blueprint.

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Why "My Taxes Will Go Down in Retirement" Often Isn't True

One of the most common assumptions we hear is that taxes will drop once someone retires. For a lot of hardworking families, that isn't the case. Once you add IRA and 401(k) withdrawals, Social Security, and any other income sources like annuities or rental properties, total income can push you into a higher bracket than expected. At the same time, retirees often lose major deductions. The mortgage is paid off, the kids are grown and out of the house, and the standard deduction alone typically isn't enough to offset that loss.

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Tax expert Ed Slott, who The Wall Street Journal has referred to as America's IRA expert, has pointed out that as income rises and deductions shrink, many retirees land in a higher bracket than they anticipated. It's worth noting that today's tax rates are historically low by recent standards, even as the national debt continues climbing toward a projected $50 trillion by 2034. That combination means future tax policy is something worth planning around, not ignoring.

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Beyond ordinary income tax, there are a handful of "stealth" tax exposures that are easy to overlook, including capital gains on savings, CDs, or the sale of a business, potential estate taxes on a paid-off home plus retirement savings, and the pass-through effect of corporate taxes on consumer prices. The good news: you have more control over your future tax bill right now than at almost any other point in your life. That's the difference between tax preparation, filling out forms once a year, and tax planning, which looks five, ten, even thirty years ahead to reduce what you'll owe over the course of retirement.

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Inflation's Quiet Erosion of Purchasing Power

Inflation doesn't announce itself the way a market downturn does, but its effect on a fixed retirement income can be just as serious. Social Security includes a cost-of-living adjustment, one of the few income sources that does, but those adjustments often don't keep pace with real-world inflation. Social Security is estimated to have lost about 20% of its purchasing power since 2010 alone.

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For anyone relying heavily on Social Security, that erosion can eventually mean difficult tradeoffs between groceries, medication, and everyday expenses. A plan that accounts for inflation from the start, rather than treating income as a fixed number, can help protect against this kind of gradual erosion over a 20 or 30 year retirement.

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Healthcare Costs That Go Beyond Medicare

Many people assume Medicare will handle the bulk of their healthcare costs once they turn 65. In reality, the average 65-year-old retiree can expect to spend over $165,000 on healthcare even after Medicare coverage is factored in, and healthcare inflation has consistently outpaced inflation in other categories.

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There's also the gap years to consider, the period before Medicare eligibility for anyone who retires early. And long-term care sits largely outside of what Medicare covers at all. There's roughly a 70% chance you'll need some form of long-term care, and the costs can be substantial. A nursing home can run over $100,000 a year on average, while in-home care can still cost around $70,000 a year.

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Longevity: The Good News, Bad News Risk

Longer life expectancy is something to be genuinely grateful for, but it also means more years of housing, food, and healthcare costs to plan for, along with more exposure to potential market downturns along the way. With the centenarian population in the U.S. projected to quadruple over the next 30 years, we generally encourage clients to plan toward age 100. You may not need a plan that goes that far, but building in that kind of cushion helps guard against the risk of outliving your savings rather than the risk of overestimating how long you'll need it to last.

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A Closer Look: Jim and Patty

Jim and Patty (names changed) came to us a few years before Jim's planned retirement at 63. They had built a solid nest egg, almost entirely in traditional IRA and 401(k) accounts, and assumed their tax bill would shrink once the paychecks stopped. When we walked through their full picture, including Social Security timing, projected Medicare costs, and a look at inflation-adjusted expenses over a 30-year retirement, we found several gaps they hadn't accounted for, including a multi-year window before Medicare eligibility and no built-in plan for potential long-term care costs.

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Together, we built a strategy that coordinated their IRA withdrawals, Social Security timing, and a portion of Roth conversions to help manage their tax bracket over time, while also setting aside a dedicated pool of assets for potential healthcare and long-term care needs. Every family's situation is different and results will vary based on individual circumstances, but having all four risk areas mapped out together gave Jim and Patty a much clearer picture of what to expect.

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Building a Plan That Accounts for All Four

None of these four expenses, taxes, inflation, healthcare, or longevity, exist in isolation. A withdrawal strategy that ignores tax bracket management can undercut an otherwise solid Social Security plan. A healthcare estimate that doesn't account for inflation can fall short by the time you actually need the money. A plan that only looks 10 years ahead can leave you exposed if you live past your original projections.

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This is why we build the B.O.S.S. Retirement Blueprint around a comprehensive picture rather than a single number. That means looking at how you'll take Social Security, how your IRA and 401(k) withdrawals interact with your tax bracket, how Medicare and long-term care fit into your healthcare plan, and how all of it holds up if you live well into your 90s or beyond.

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Frequently Asked Questions

Will my taxes really go down in retirement?
Not necessarily. Between IRA and 401(k) withdrawals, Social Security, and the loss of deductions like mortgage interest, many retirees find themselves in a similar or higher tax bracket than they expected.

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How much does inflation actually affect retirement income?
It can have a significant effect over time. Social Security's cost-of-living adjustments often don't keep pace with real inflation, which is estimated to have reduced its purchasing power by around 20% since 2010.

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How much should I budget for healthcare in retirement?
The average 65-year-old retiree can expect to spend over $165,000 on healthcare even with Medicare coverage factored in. Actual costs vary significantly based on health, location, and whether long-term care is needed.

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How long should I plan for my money to last?
Given rising longevity and a growing centenarian population, we generally recommend planning toward age 100 as a cushion, even though your actual lifespan may be shorter.

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Let's Build a Plan for All Four

Taxes, inflation, healthcare, and longevity are easy to think about individually, and easy to underestimate when you do. A comprehensive plan looks at all four together. If you'd like to see what this could look like for your own retirement, our team offers a free, personalized B.O.S.S. Retirement Blueprint session.

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Or call us directly: (800) 637-1031

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About the Author

Ryan Thacker is the Co-Founder of B.O.S.S. Retirement Solutions and B.O.S.S. Retirement Advisors, a fiduciary RIA based in Lehi, Utah. Alongside his brother Tyson, Ryan has helped more than 55,000 area families across Utah, Idaho, Washington, and Arizona build retirement income strategies focused on maximizing income, minimizing taxes, and protecting what they've worked a lifetime to build. B.O.S.S. currently manages more than $1 billion in retirement assets across 11 office locations.

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Advisory services offered through B.O.S.S. Retirement Advisors, an SEC-Registered Investment Advisor. Insurance products and services offered through B.O.S.S. Retirement Solutions. Information contained in this material is for informational purposes only and is not intended as personalized investment, tax, or legal advice. You should seek advice on legal and tax questions from an independent attorney or tax advisor. Examples and hypothetical scenarios are illustrative only and do not guarantee future results. Actual results may vary. The information is not intended to be used as the sole basis for financial decisions, nor should it be construed as advice designed to meet the particular needs of any individual. BOSS is not affiliated with the Social Security Administration, the U.S. government, or any government agency.

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Related Resources from B.O.S.S. Retirement Solutions:

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