All Resources
Retirement Planning

How Much You Actually Need to Retire

4 min read

"How much do I need?" is the most common — and most anxiety-provoking — retirement question. The answer depends on three things: what you spend, what you'll receive from Social Security, and where you'll live. Here's how to get a real number.

Start With Your Spending, Not a Rule of Thumb

The old rule — "you need 80% of your pre-retirement income" — is lazy math. What you actually need to know is: how much will you spend per year in retirement?

Build a realistic budget. Not what you spend today (commuting costs, work clothes, daycare might vanish), but what you'll actually spend:

  • Housing (mortgage/rent, property tax, insurance, maintenance)
  • Healthcare (Medicare premiums, Medigap, out-of-pocket)
  • Food, transportation, utilities
  • Travel, hobbies, gifts, entertainment
  • Taxes on retirement income

A single person in a medium-cost city might land at $55,000/year. A couple who owns their home free and clear might need $65,000. A couple who wants to travel extensively could hit $100,000+. There's no one number.

Factor in Social Security

Your portfolio doesn't need to cover everything — Social Security covers a portion. Create an account at ssa.gov to see your estimated benefit at different claiming ages.

Example: You need $60,000/year and expect $24,000/year from Social Security at age 67. Your portfolio gap is $36,000/year.

Using the 4% rule: $36,000 × 25 = $900,000 portfolio target.

That same person without Social Security would need $60,000 × 25 = $1,500,000. Social Security shrank their required portfolio by $600,000 — 40%.

Healthcare: The Wild Card

Fidelity estimates a 65-year-old couple retiring today will spend roughly $315,000 on healthcare over the course of retirement (Medicare premiums, supplemental insurance, prescription drugs, dental, vision, and out-of-pocket costs — not including long-term care). For a single retiree, estimate $150,000–$175,000 total.

This isn't an annual expense you budget monthly; it's a lump-sum reserve you need in your portfolio. Building an HSA during your working years — and investing it — is the most tax-efficient way to prepare for this.

Long-term care is separate. About 70% of people turning 65 will need some form of long-term care, and the median annual cost of a private room in a nursing home is over $115,000. Long-term care insurance or a dedicated reserve may be necessary.

Location Matters Enormously

ScenarioAnnual SpendPortfolio Target (4% rule)
Single, LCOL city, paid-off home, modest lifestyle$35,000$875,000
Single, MCOL city, renting$50,000$1,250,000
Couple, MCOL, own home, one big trip/year$70,000$1,750,000
Couple, HCOL, travel-heavy lifestyle$100,000$2,500,000

Remember to adjust for Social Security. If the couple in row three receives $36,000 combined from Social Security, the portfolio only needs to cover $34,000 — a target of $850,000, not $1,750,000.

A Simple Calculation Framework

  1. Estimate annual retirement spending — be honest and specific
  2. Subtract guaranteed income — Social Security, pensions, annuities
  3. Multiply the gap by 25 — that's your portfolio target (based on the 4% rule)
  4. Add a healthcare reserve — $150,000–$300,000 depending on household size and health
  5. Adjust for taxes — remember that withdrawals from Traditional 401(k)/IRA are taxable

Example calculation: You're 40, planning to retire at 65. You estimate $70,000 in annual spending. You expect $28,000 from Social Security. Your gap is $42,000. Multiply by 25: $1,050,000. Add $200,000 for healthcare: $1,250,000 is your target.

To get there in 25 years, assuming 7% real returns and $100,000 already saved, you need to invest roughly $20,000/year ($1,667/month). With employer match and tax-deferred growth, a maxed-out 401(k) covers most of that.

The key insight: you probably need less than you think — once you actually factor in Social Security and match your target to your real spending, not an arbitrary percentage of your working income.

Related Reading