Is $10 Million Enough to Retire?

I had lunch with a client a few years ago who’d sold a business and was sitting on about $9 million in liquid assets. He was 58, in good health, and genuinely stressed about whether the money would last. My first reaction was something like — of course it will. But when we actually walked through his situation, I understood the anxiety. The answer was yes, but the specifics mattered. Here’s how to actually think through whether $10 million is enough.

Where You Live Matters More Than You’d Think

Cost of living can double or triple your spending rate depending on location. Retiring in Manhattan or San Francisco is a fundamentally different financial situation than retiring in Asheville or Tucson. Housing costs, property taxes, and general lifestyle expenses vary enormously by geography. $10 million with a $300,000/year spending rate in a low-cost area looks very different than $10 million at $500,000/year in a high-cost city. Figure out your actual expected expenses in your actual expected location before declaring any amount sufficient.

Inflation Is a Long-Term Erosion Problem

Ten million dollars sounds like a lot — and it is. But over a 30-year retirement, assuming 2.5% average inflation, your purchasing power erodes significantly. Something that costs $10,000 today will cost around $20,900 in 30 years at 2.5% inflation. Your $10 million nest egg needs to generate enough growth to at least keep pace with inflation over decades, not just maintain nominal value. That means the money needs to stay invested and working — not sitting in cash.

Lifestyle Determines Everything

This is probably should have led with this point, honestly. The lifestyle question is the central variable. If you plan to travel extensively in business class, maintain multiple properties, fund adult children’s major expenses, and host elaborate gatherings — $10 million will work but with less cushion than people assume. If you want a comfortable but not lavish lifestyle, $10 million provides genuine security. There’s no universal answer; there’s only your answer based on what you actually want your days to look like.

Healthcare Is the Wild Card

Studies consistently put expected out-of-pocket healthcare costs for a couple retiring at 65 at $300,000 or more over their retirement years. That figure covers Medicare premiums, supplemental coverage, prescription costs, and routine out-of-pocket expenses. It doesn’t fully account for long-term care — extended nursing home stays or in-home care that can run $80,000–$150,000 per year. At $10 million, you can absorb these costs, but they’re not trivial. Long-term care insurance or a robust HSA strategy can help manage this exposure.

Investment Strategy Determines Longevity

The 4% rule — withdrawing 4% of your portfolio annually — is a widely-used starting framework. Applied to $10 million, that’s $400,000 per year in withdrawals. Studies suggest this withdrawal rate, with a balanced portfolio of stocks and bonds, has historically sustained a 30-year retirement in most market scenarios. At $10 million you have more flexibility than most — you can hold a more conservative allocation and still withdraw generously. But the portfolio still needs to stay invested and diversified, not sit in Treasury bills and money market accounts.

Social Security and Other Income

At $10 million, Social Security is supplemental income rather than the cornerstone. But it’s still real money — potentially $30,000–$60,000 or more per year for a couple depending on earnings history and claiming age. Delaying Social Security to 70 to maximize the benefit makes sense for most high-net-worth retirees who have other assets to draw from in their early retirement years. Add in any pension income, rental income, or annuity payments and the picture gets more comfortable.

Taxes Deserve Real Attention

At this wealth level, tax planning isn’t optional — it’s high-value work. Withdrawals from traditional IRAs and 401(k)s are taxed as ordinary income. Capital gains are taxed at preferential rates but still represent a meaningful slice on large portfolios. Required minimum distributions (RMDs) starting at age 73 can push income into higher brackets. Roth conversion strategies, charitable giving vehicles like donor-advised funds and qualified charitable distributions, and careful account withdrawal sequencing can all meaningfully affect how much you keep versus how much goes to the government.

Longevity Risk

People are routinely underestimating how long they’ll live. If you retire at 62 and live to 95, that’s 33 years of retirement. A 30-year retirement is no longer a conservative assumption — it’s increasingly the realistic one. Planning for a potentially 35-year retirement changes the calculus on withdrawal rates, investment allocation, and long-term care planning. The people who run out of money in retirement almost never predicted they’d live as long as they did.

Monte Carlo Analysis

When I’m reviewing a retirement plan, I run Monte Carlo simulations — a tool that models thousands of different market scenarios to see what percentage of outcomes result in the money lasting. At $10 million with a $300,000 annual spend and a balanced portfolio, the probability of success across most reasonable scenarios is very high. It’s not 100% — no honest analysis gives you 100% — but it’s well above the threshold most financial planners consider adequate. This kind of analysis is worth doing with an actual planner rather than relying on general rules of thumb.

Estate Planning Adds Complexity

At $10 million, federal estate tax considerations become relevant — the current exemption is over $12 million per individual but is scheduled to revert lower in 2026 absent Congressional action. Trusts, gifting strategies, and charitable vehicles can help manage this. Whether you want to leave a significant inheritance, fund a charitable legacy, or spend it all before you go shapes how the money should be structured. None of these questions have wrong answers, but they all have financial planning implications.

The Real Answer

Yes, $10 million is enough to retire for most people living most lives. But “enough” is defined by your spending, your health trajectory, your investment discipline, and your longevity. The people who face financial stress with $10 million in retirement usually made at least one of these mistakes: spent too much too early, kept the money too conservative and didn’t grow it, or failed to plan for healthcare costs. Work with a fee-only financial planner, build a realistic projection, and revisit it regularly. That’s the actual plan.