Most Retirement Plans Fail in the First 10 Years - Here's the Solution

The first decade of retirement is when most retirement plans get into trouble, not the twentieth year, not the thirtieth. A market decline, an oversized tax bill, or a healthcare cost that hits early can do more damage to a retirement plan in year three than the same event would in year twenty, simply because there is less time and less flexibility to recover.

The good news is that this risk is well understood and largely plannable. The mistakes that derail retirement plans in the first 10 years tend to repeat themselves: withdrawing too much too soon, ignoring taxes until RMDs force the issue, and having no plan for a down market right after retiring.

Here is why the first 10 years matter so much, and what a plan built to protect them looks like.

Key takeaways:

• Sequence of returns risk means early losses combined with withdrawals can permanently shrink how long a portfolio lasts.

• The Critical 15, the 5 years before retirement and the 10 years after, is when planning mistakes do the most damage.

• A withdrawal rate that ignores market conditions in early retirement is one of the most common causes of plan failure.

• Waiting until RMDs begin to think about taxes is often too late to meaningfully reduce your lifetime tax bill.

• Healthcare costs before Medicare and unplanned one-time expenses are common early-retirement surprises that derail plans.

Why the First 10 Years of Retirement Carry the Most Risk

When you are still working, a market decline is uncomfortable but recoverable, because your portfolio has time to recover and you are still adding to it. Once you retire and start withdrawing, that dynamic reverses. A significant market decline in your first few retirement years, combined with ongoing withdrawals, can permanently reduce how long your portfolio lasts, a dynamic known as sequence of returns risk. Two retirees with identical average returns over 30 years can end up with very different outcomes depending on whether the poor years happened early or late in retirement.

This is why the size of your portfolio on the day you retire matters less than how that portfolio is positioned and how flexible your withdrawal plan is for the years immediately following retirement. A plan that assumes steady, average returns every year is not a plan, it is a best-case scenario, and the first decade of retirement is where that gap between assumption and reality tends to show up.

The Critical 15: Why the Years Before and After Retirement Matter Most

We refer to the 5 years before retirement and the 10 years after as the Critical 15, because decisions made in this 15-year window have an outsized effect on the rest of your retirement. Mistakes made here, overspending early, ignoring tax planning, or maintaining an investment allocation that no longer matches your time horizon, are harder to undo than mistakes made earlier in your career, simply because there is less runway left to recover.

This window is also your best opportunity: it is typically when your income is highest relative to your remaining working years, and it is often your best stretch for Roth conversions before RMDs and Social Security are layered on top of your income. Treating the Critical 15 as a distinct planning phase, rather than an extension of your working years or an afterthought before retirement, is one of the most effective ways to protect a retirement plan.

The Withdrawal Rate Mistake That Undermines Early Retirement

A common mistake in the first 10 years of retirement is picking a withdrawal amount based on a single generic rule and never revisiting it. Markets do not move in a straight line, and a withdrawal rate that looked reasonable at retirement can become unsustainable if the first few years bring below-average returns. Retirees who rigidly stick to the same withdrawal amount regardless of market conditions are the ones most exposed to sequence of returns risk.

A more resilient approach builds in flexibility from the start: identifying which expenses are essential versus discretionary, and having a plan for reducing discretionary spending temporarily if the portfolio takes an early hit. This flexibility, decided in advance, is far easier to execute than trying to make emotional spending decisions during an actual market decline.

Building a Plan That Protects the First Decade

Protecting the first 10 years of retirement generally comes down to three things: a withdrawal strategy that can flex with market conditions, a tax plan that reduces the size of future RMDs before they arrive, and a specific plan for expenses that fall outside your normal budget, including healthcare before Medicare eligibility. None of these are one-time decisions, they need to be revisited as markets and your circumstances change.

This is the reasoning behind building a full Retire Ready Roadmap™ before you retire rather than after: the plan should already account for a range of market outcomes and a coordinated tax strategy, so the first decade of retirement is protected by design rather than by luck.

Why do retirement plans fail in the first 10 years specifically?

Early losses combined with ongoing withdrawals can permanently shrink a portfolio's staying power, a risk known as sequence of returns risk, which makes the first decade more consequential than later years with the same average returns.

What is the Critical 15?

The Critical 15 refers to the 5 years before retirement and the 10 years after, the window where planning decisions have the largest effect on the rest of your retirement.

How can I protect my portfolio if the market drops right after I retire?

Keeping enough in more stable assets to cover near-term spending and building flexibility into your withdrawal amount so you can reduce discretionary spending temporarily are two of the most effective protections against an early market decline.

Is it too late to fix my plan if I already retired a few years ago?

No. If you are still within or near the Critical 15 window, there is usually still time to adjust your withdrawal strategy, revisit your tax plan, and reduce the risk to the rest of your retirement.

How does tax planning protect the first decade of retirement?

Reducing future required minimum distributions through Roth conversions completed early in retirement lowers the taxable income you will be forced to report later, which helps protect your spendable income during the years that matter most.