How Much Do You Actually Need to Retire?

The honest formula is short: estimate what a year of your retirement costs, subtract the income that shows up regardless (Social Security, any pension), and divide the remainder by a sustainable withdrawal rate, around 4% is a defensible planning anchor. Spend $110,000, collect $40,000 of Social Security, and the portfolio must cover $70,000 a year: at 4%, roughly $1.75 million.

Everything else, the headlines, the "you need $3 million" posts, the rules of thumb keyed to salary, is noise until it is your spending in the numerator.

Start with Real Spending, Not a Multiplier

Salary multipliers fail because two households earning $300,000 can live on $90,000 and $250,000 respectively, and their retirements cost accordingly. Pull twelve months of actual spending, then adjust for retirement reality: the mortgage may be gone, payroll taxes and retirement saving disappear, health insurance before Medicare gets expensive, and early-retirement travel often raises spending for a decade before it drifts down. Many retirees follow a "smile" pattern: higher spending early, lower in the middle, higher again late as care costs arrive.

What a Withdrawal Rate Really Promises

The 4% guideline comes from historical testing: a portfolio of stocks and bonds, spending 4% of the starting value adjusted for inflation each year, survived every historical 30-year period in the U.S. data. It is a stress-tested worst case, not an average; in most historical paths that retiree died far richer than they started. Reasonable people adjust it: a touch lower for very early retirement or expensive markets, higher if you can cut spending in bad years, which is the single most powerful safety valve.

Model your own numbers in the free Retirement Readiness calculator.

Count the Income That Shows up Anyway

Social Security is real money and most projections at ssa.gov understate a high earner's benefit by defaulting to early claiming. A couple with strong earnings histories can see $60,000 to $80,000 a year with delayed claiming, which at a 4% withdrawal rate substitutes for $1.5 to $2 million of portfolio. Pensions, rental income, and part-time work in the early years all reduce the number the same way. This is why "how much do I need" and "when should I claim" are one question, not two.

From Number to Plan

Once the target exists, the plan writes itself: current savings, contribution rate, and expected return produce a trajectory, and the gaps show up as specific fixes, save more, retire eighteen months later, spend slightly less, or take sensible portfolio risk instead of sitting in cash. Revisit the number every year or two; it moves less than markets do, and watching it converge is genuinely motivating.

We turn this arithmetic into a full plan, taxes, withdrawal sequencing, and all, in our retirement planning work.

Tony Colunga · Founder, Attend Wealth

Tony leads Attend Wealth, a fee-based wealth management firm in Atlanta serving professionals, families, and business owners. Advisory services are held to a fiduciary standard. More about Attend