How Much Retirement Income Do I Need?

The "replace 70–80% of your pre-retirement income" rule is the most widely cited retirement benchmark — and one of the least useful. It was built for median earners with typical spending patterns. If you spend differently than average, it will either scare you into over-saving or lull you into under-saving. This guide builds a more honest answer from the bottom up: what retirees actually spend, how spending changes with age, and what portfolio size those numbers require.

Why the 70–80% rule fails in both directions

The replacement rate rule assumes your retirement spending will closely track your working-years income. That assumption has three major problems:

Problem 1: It ignores what you were doing with your income. If you were earning $200,000 and saving $60,000/year, your real spending was $140,000 — not $200,000. Replacing 80% of $200,000 gives you $160,000 as a target, which is higher than you actually need. Conversely, if you had a $90,000 income but supported a child with disabilities or held a substantial mortgage, your real spending was $85,000+, and 70% ($63,000) leaves a real shortfall.

Problem 2: It ignores major retirement-specific cost shifts. Retirement brings higher healthcare costs, lower transportation costs (no commuting), possible housing transitions, and sharply higher leisure spending in early retirement. These shifts don't map neatly onto a percentage of prior income.

Problem 3: Your spending won't be flat. Real retirement spending is not a level line from age 65 to 90. Research by David Blanchett (Morningstar) and others documents a consistent pattern: inflation-adjusted spending is highest in early retirement, declines gradually through the mid-70s to early 80s, then rises again as healthcare and care costs increase. Planning as if spending is flat either over-funds early retirement or under-funds late-retirement healthcare — or both.¹

The three phases of retirement spending

The research on retirement spending reveals a pattern researchers call the "retirement spending smile" — a curve that starts relatively high, dips in the middle, and rises again at the end.

Blanchett's research found that a household beginning retirement with $100,000 in real (inflation-adjusted) expenditures reached a spending trough of approximately $74,000 at age 84 — a 26% decline — before late-life healthcare costs pushed total spending back up. A flat spending assumption over-allocates income to the Slow-Go years and may under-fund the No-Go phase when care costs arrive.

The practical implication: your retirement budget isn't one number. It's at minimum three numbers — an early-retirement "full-spending" figure, a mid-retirement "reduced-discretionary" figure, and a late-retirement "care-cost" contingency. Many people benefit from planning their investment portfolio to support the higher Go-Go spend, while maintaining a dedicated healthcare reserve for the No-Go phase.

What retirees actually spend: a category breakdown

The BLS Consumer Expenditure Survey provides the most comprehensive data on how retirees actually spend money, broken into specific categories. Below is a benchmark for households aged 65–79, based on 2024 survey data.²

These are averages across all households in this age range — including those in low-cost rural areas and high-cost metros, renters and homeowners, those with Medicare Advantage and those with traditional Medicare plus Medigap. Your budget will differ. What the table tells you is the distribution: housing dominates, healthcare is third (and rises after 80), and entertainment/travel is roughly 10%.

Healthcare: the number that changes everything

Healthcare is the most unpredictable line item in a retirement budget — and the one most commonly underestimated. The BLS average of $7,387/year covers routine healthcare for people in reasonably good health. It does not represent worst-case scenarios.

Here's what Medicare costs in 2026 for a single retiree with traditional Medicare plus a Medigap Plan G supplement — roughly the gold standard for coverage:³

• Medicare Part B premium: $202.90/month ($2,435/year) — this is the standard 2026 rate; higher incomes trigger IRMAA surcharges above $109,000 AGI (single)
• Medicare Part A: $0/month for most retirees with 40+ quarters of work history
• Medigap Plan G: $150–$250/month ($1,800–$3,000/year) depending on age, gender, and state — Plan G covers the Part A deductible, Part B coinsurance, foreign travel emergencies; only out-of-pocket exposure is the Part B deductible ($257 in 2026)
• Medicare Part D (drug coverage): $30–$80/month ($360–$960/year) depending on plan tier and medications

Baseline annual healthcare cost (Medicare + Medigap Plan G + Part D, no claims): approximately $4,600–$6,400/year per person. For a couple: $9,200–$12,800/year, before out-of-pocket medical expenses, dental, vision, or long-term care.

Long-term care is the catastrophic tail risk. A private nursing home room cost $129,575/year nationally in 2025 (per CareScout). Home health aide care runs $61,000–$75,000/year. Seventy percent of people reaching 65 will need some long-term care, and 20% will need it for more than 5 years.⁴ This cost does not show up in the average BLS healthcare number — it's either self-funded, insured, or absorbed by Medicaid. See our Long-Term Care and Retirement Income Planning guide for how to incorporate LTC into your income plan.

Income floor vs. discretionary: building your target from two layers

A more useful framework than a single income number is separating your spending into two layers:

The income floor: Non-negotiable, recurring expenses that continue no matter what — housing, utilities, food, healthcare premiums, insurance, basic transportation. These are the costs you cannot cut even in a severe market downturn. For most retirees, the floor is 50–65% of total spending.

Discretionary spending: Travel, entertainment, dining out, hobbies, gifts, home improvements. These are the costs that can flex — reducing them 20–30% in a bad market year is uncomfortable but survivable. This is the buffer that makes dynamic spending strategies (like Guyton-Klinger guardrails) workable in practice.

Splitting your budget this way changes how you plan the income plan. The floor should ideally be covered by guaranteed income (Social Security, pension, annuity income, or very stable bond/TIPS income). Discretionary spending can be funded from portfolio withdrawals that flex with market performance. A retiree with Social Security + a small pension covering their income floor can afford to hold a more aggressive portfolio for the discretionary layer — and take the portfolio's short-term volatility without cutting essential expenses.

From budget to portfolio: working the math backwards

Once you have an annual income number, converting it to a required portfolio size is straightforward:

Required portfolio = (Annual income need − Guaranteed income) ÷ Safe withdrawal rate

Example: You need $80,000/year. Social Security provides $32,000/year. Your income gap from the portfolio is $48,000/year. At a 4% withdrawal rate, you need $48,000 ÷ 0.04 = $1,200,000 in investment assets at retirement.

At different withdrawal rates:

Note that the "right" withdrawal rate depends on your specific situation: retirement age (a 60-year-old needs a lower rate than a 72-year-old), asset allocation, spending flexibility, and what other income you have. Our Retirement Sustainability Calculator models your specific scenario with year-by-year projections and a sustainability verdict.

Retirement income needs calculator

Enter your spending by category and your guaranteed income sources. The calculator outputs your annual income gap and the portfolio size needed to fund it.

What if the required portfolio is more than you have?

If the calculator shows a gap between where you are and where you need to be, four levers move the math:

1. Delay Social Security. Every year you wait past 62 increases your benefit by 5–8%. Waiting from 62 to 70 increases the benefit by about 76%. That additional guaranteed income directly reduces your portfolio income gap — and reduces the portfolio you need. Use our Social Security Claiming Calculator to quantify the difference.
2. Reduce discretionary spending. Cutting $500/month from the discretionary layer — travel, dining, entertainment — reduces your portfolio need by $150,000 (at 4% WR). That's a significant trade-off that many retirees find acceptable in exchange for retiring 2–3 years earlier.
3. Work part-time in early retirement. Even $15,000–$20,000/year from part-time work in the first 5 years of retirement dramatically reduces portfolio drawdown during the critical sequence-of-returns window. See our Phased Retirement Planning Guide for the tax and SS interaction.
4. Adjust the withdrawal rate or strategy. Dynamic withdrawal strategies — Guyton-Klinger guardrails, variable percentage withdrawal — can support a higher initial rate than a rigid 4% rule by reducing spending in bad market years. Our Guyton-Klinger Calculator and VPW Calculator model these strategies.

1. Kitces.com — "Estimating Changes in Retirement Expenditures and the Retirement Spending Smile." Summary of Blanchett (2014) Morningstar research: a household beginning retirement at $100,000 in real spending reaches a trough of ~$74,146 at age 84 (26% decline), then rising late-life healthcare costs push total spending back up. Retirement spending smile pattern is distinct from a flat spending assumption and affects safe withdrawal rate calculations.
2. IndexBox analysis of BLS Consumer Expenditure Survey 2024 — "Average Monthly Spending for 70-Something Households Is $5,165." Age 70–79 households: total $61,977/year. Housing $21,185 (34%), transportation $10,071 (16%), food ~$7,800 (13%), healthcare $7,387 (12%). Category percentages vary by geographic region and household size.
3. CMS — 2026 Medicare Parts B Premiums and Deductibles Fact Sheet. Standard Part B monthly premium: $202.90 (2026). Part B annual deductible: $257 (2026). IRMAA surcharges above $109,000 AGI (single) / $218,000 (MFJ): Tier 1 adds $73.30/month Part B per person. Part D IRMAA add-on: $14.50–$91.00/month.
4. U.S. Administration for Community Living — "How Much Care Will You Need?" 70% of people turning 65 will need some type of long-term care services. 20% will need care for more than 5 years. Average duration of care: 3 years. Average cost of a private nursing home room: ~$129,575/year (2025 CareScout survey data).
5. IRS Rev. Proc. 2025-32 — 2026 Inflation-Adjusted Tax Parameters. Standard deduction $16,100 single / $32,200 MFJ. 12% bracket top: $50,400 taxable (single) / $100,800 (MFJ). 0% long-term capital gains threshold: $49,450 (single) / $98,900 (MFJ). Used in retirement income tax planning.

Spending and premium figures verified against 2024–2026 sources as of June 2026.