Retirement Planning 101: How Much Is Actually Enough?
Ask five different sources how much money you need to retire and you'll get five different answers, a multiple of your salary, a flat number like two million dollars, a percentage of pre-retirement income. These rules of thumb exist because they're easy to repeat, not because they're accurate. They describe an average household that doesn't actually exist, and applying one to a specific person's life is often more misleading than having no number at all.
The real answer starts somewhere much less exciting: what do you actually spend, and what will that spending look like once work stops? Not a rough guess, but an honest look at fixed costs, housing, insurance, healthcare, versus the more flexible spending that tends to shift in retirement, sometimes down as commuting and work expenses disappear, sometimes up as travel and hobbies take up the time work used to occupy. This number, not a multiple of salary, is the actual foundation everything else gets built on.
From there, the math depends heavily on when retirement actually starts. Retiring at 62 versus 67 doesn't just mean five fewer years of saving, it means five more years of withdrawals the portfolio has to support, plus a longer gap before Social Security reaches its full benefit if you're drawing early. That difference alone can change the required number substantially, which is part of why a generic rule of thumb can't account for it.
Social Security and any pension income matter more than most people initially factor in, since they reduce how much a portfolio actually needs to generate on its own. But the timing of when to claim Social Security is its own decision with real trade-offs, claiming early means smaller monthly checks for longer, waiting means larger checks starting later, and the right answer depends on health, other income sources, and household circumstances rather than a universal best practice.
Then there's the question of how long the money needs to last, which nobody can know in advance. Retirement planning has to account for a range of possible lifespans, not just an average one, since running out of money at 85 is a very different outcome than leaving money unused at 95. This is where a withdrawal strategy, not just a savings target, becomes the more useful thing to actually plan around.
There isn't a universal number, and anyone offering one without knowing your specific spending, timeline, and income sources is guessing. What actually exists is a process for building your number, one grounded in your real life rather than an average that was never meant to describe you specifically.