Retirement Income Planning: The 30-Year Stress Test We Run First

Retirement income planning is the work of turning a pile of savings into a paycheck that survives 30 or more years of inflation, taxes, and bad markets. The plan starts with a stress test, not a product. Here’s the test John Shedenhelm runs before recommending anything, and what it usually turns up.

What Retirement Income Planning Actually Means

Most people arrive with a balance in mind. They know what the 401(k) statement says. What they don’t know is what it buys, month after month, for the rest of two lives.

Retirement income planning answers three questions. How much can you spend without running out? Where does each dollar come from? And how much does the IRS take on the way out?

Miss the third and the first two stop being true. A $1.2 million pre-tax balance is not $1.2 million of spending money. Depending on how it’s withdrawn, $150,000 to $300,000 of it belongs to the government.

Why “How Much Do I Have” Is the Wrong Starting Point

The balance is an input, not an answer. Two households with identical $1.5 million portfolios can have very different safe spending levels. What separates them is the mix of account types, the age they claim Social Security, any pension, and their fixed monthly costs.

We start on the spending side. What has to be paid every month no matter what the market does? Housing, insurance, food, healthcare. That number sets the floor everything else gets built on.

Did You Know? Social Security’s 2026 cost-of-living adjustment came in at 2.8%. For most retirees, Social Security is the single largest inflation-adjusted asset they own, and it’s the only one that can’t be outlived or lost in a downturn. (SSA)

The 30-Year Stress Test (And Why 1966 Matters)

Here’s the part that surprises people. We don’t test a plan against average returns. We test it against the worst starting years in history.

Ask most people to name a terrible time to retire and they’ll say 2008. The honest answer is 1966. Someone retiring in 1966 faced 16 years of flat markets paired with brutal inflation. Average returns looked fine on paper. The sequence destroyed them anyway.

Sequence-of-Returns Risk in Plain Terms

While you’re saving, the order of returns barely matters. Once you’re withdrawing, order is everything.

Pull money out of a portfolio that just dropped 25% and you sell more shares to raise the same dollar. Those shares never come back to join the recovery. Two retirees can earn the identical average return over 30 years, and one runs out of money while the other dies with more than they started with. The only difference is which years the bad ones landed in.

This is why a plan built on “the market averages about 8%” isn’t a plan. It’s a hope.

What the 3.9% Number Really Tells You

Morningstar’s 2026 research puts the safe starting withdrawal rate at 3.9% for a 30-year retirement, using a portfolio of 30% to 50% stocks, at a 90% success rate. That’s up from 3.7% in 2025, and it has bounced between 3.3% and 4.0% over the past five years. (Morningstar)

Read that carefully. The number moves every year because it tracks current bond yields and stock valuations, not a law of nature. Anyone quoting a fixed rule is quoting a snapshot from a year that already passed.

The more useful finding in that research: retirees willing to flex spending when markets fall can support starting rates as high as 5.7%. Flexibility buys more retirement income than any product does.

Pro Tip: Before you fixate on a withdrawal percentage, separate your budget into “must pay” and “would like to pay.” The size of that second bucket is what determines how much flexibility you actually have, and flexibility is worth more than an extra half percent of return.

Build the Floor Before You Build the Portfolio

Once fixed costs are on paper, the sequence is simple. Cover the floor with income that doesn’t depend on markets. Then let the portfolio handle everything above it.

Social Security does most of this work. For anyone born in 1960 or later, full retirement age is 67. Delaying past that adds roughly 8% per year in delayed retirement credits until age 70. That’s a guaranteed, inflation-adjusted raise that no investment can promise. For married couples, delaying the higher earner’s benefit also raises the survivor benefit for whichever spouse lives longer.

The honest counterpoint: delaying isn’t free. It means spending down the portfolio harder in your 60s. In our experience the couples who gain most from delaying have a healthy longer-lived spouse and enough taxable savings to bridge the gap, and those two conditions don’t always show up together.

If Social Security plus any pension still leaves a gap in the floor, that gap is where guaranteed income products earn their place. Not before.

The Tax Layer Most Income Plans Skip

Every dollar you’ve saved sits in one of three tax buckets. Taxable brokerage accounts, tax-deferred accounts like a traditional 401(k) or IRA, and tax-free accounts like a Roth. Each one is taxed differently on the way out, and the balance across all three is what gives a plan room to maneuver.

The 2026 numbers that shape those decisions:

2026 Figure Amount
Standard deduction (married filing jointly) $32,200
Additional standard deduction, age 65+ $1,650 per spouse
Senior deduction, age 65+ (separate, through 2028) $6,000 per person
Top of the 12% bracket (MFJ) $100,800
Top of the 22% bracket (MFJ) $211,400
0% long-term capital gains up to (MFJ) $98,900
RMDs begin at age 73

Source: IRS Rev. Proc. inflation adjustments and the 2026 rate tables.

Those bracket edges are the working surface of a retirement income plan. The gap between when you stop working and when RMDs start at 73 is usually the lowest-tax window of your entire life. Most people spend it doing nothing, then get hit with mandatory withdrawals stacked on top of Social Security at 73.

Did You Know? Missing a required minimum distribution triggers a 25% excise tax on the amount you failed to take. Correct it within two years and that drops to 10%. (IRS)

Which account you draw from first can change a 30-year tax bill by six figures. That’s covered in our look at tax-smart retirement strategies, and it builds on the tax-efficient wealth strategies used during your working years.

Pro Tip: Watch Medicare. Your 2026 Part B premium is based on your 2024 income. A single filer crossing $109,000, or a couple crossing $218,000, picks up a surcharge on top of the $202.90 standard premium. A large one-time withdrawal can raise your healthcare costs two years later.

What Flexibility Looks Like in Practice

A plan that lasts 30 years is not a plan you set once. Plans built by the team at Eagle Financial Solutions get reviewed against three triggers: a market drop past a set threshold, a tax law change, and a change in health or household.

The households that struggle are rarely the ones with too little saved. They never built a rule for what happens when things go wrong. If you’re a decade out, our guide to restarting at 50 covers the groundwork this plan sits on.

Frequently Asked Questions

How do I create a steady income stream for retirement?

Start by covering fixed monthly costs with guaranteed sources like Social Security and any pension. Fund the remaining gap from your portfolio using a withdrawal rate you’ve tested against poor market conditions, not average ones.

How does inflation affect long-term retirement income?

Inflation quietly cuts purchasing power roughly in half over 25 years at 2.8% annually. Social Security adjusts for it automatically, but most pensions and fixed annuity payments do not, which is why portfolio growth still matters in retirement.

What are common strategies for drawing down retirement savings?

The common default is taxable accounts first, then tax-deferred, then Roth. A better approach fills low tax brackets deliberately each year, blending withdrawals across account types to control lifetime taxes rather than deferring them.

How much can I safely withdraw each year?

Morningstar’s 2026 research supports a 3.9% starting rate over 30 years at a 90% success rate. Retirees willing to reduce spending in down markets can start meaningfully higher, closer to 5%.

The Bottom Line

A retirement income plan is not a portfolio and it’s not a product. It’s a set of rules for converting what you’ve saved into what you can spend, tested against the market conditions you’d least like to see. The stress test comes first because it’s the only thing that tells you whether the rest of the plan holds up.

If you’re inside ten years of retirement, the window between your last paycheck and your first required minimum distribution is the most valuable planning window you’ll get. New to this? Start with Retirement 101. Ready now? Schedule a conversation with John Shedenhelm to run your own 30-year stress test.

This article is for educational purposes and is not individualized investment, tax, or legal advice. Tax figures reflect 2026 federal rules and are subject to change. Consult a qualified professional about your specific situation.

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