Retirement Planning
Safe withdrawal rates, Monte Carlo simulation, Roth conversions, sequence-of-returns risk, and Social Security timing for the years when your portfolio replaces your paycheck.
63 guides in this topic
Concept22 min readCalculator
Personal Finance Gurus vs. Economists: When Simple Rules Beat Textbook Models
A Yale professor checked 50 popular finance books against economic models. One scorecard row agrees outright, and one benchmark row contradicts its own source.
Strategy21 min readCalculator
Tail-Risk Hedging: Puts, CAOS, HIDE, and the Managed-Futures Alternative
Rolling put protection returned 7.7% vs 10.8% for the S&P 500 from July 1986 to May 2025. What tail hedges cost, which tail each covers, what to use instead.
Strategy18 min readCalculator
Boomer Candy: The High-Yield Investments That Turn Your Portfolio Into an Options Trade
Goldman bought both sides in five months. What buffered and covered-call ETFs actually sell, and why an advertised buffer isn't what a mid-period buyer gets.
Strategy15 min read
How Much of Your Retirement Should Be a Guaranteed Income Floor?
Your funded ratio decides. For one modeled 65-year-old, a partial floor helped above 0.65x funded and hurt below it. How to size a guaranteed income floor.
Strategy18 min readCalculator
Your ZIP Code Is Part of Your Financial Plan: How State Taxes Affect Retirement
For one modeled couple, leaving New York five years earlier was worth $279,000 more than moving at retirement. Why timing matters more than the headline rate.
Concept16 min readCalculator
Yes, an Unrealized Loss Is Still a Loss
The S&P 500 reclaimed its 1972 real high in 1984. A retiree drawing 4% was at 39 cents on the dollar and never recovered, without ever panic selling.
Strategy16 min readCalculator
What If You Just Paid the 10% Early-Withdrawal Penalty?
Skip the Rule of 55 and the Roth ladder. Eat the full 10% penalty at 45. With a bracket drop the traditional 401(k) still wins from year one.
Strategy16 min readCalculator
The ACA Subsidy Cliff Is Back: Health Insurance for Early Retirees in 2026
The enhanced premium tax credits expired and the 400% poverty-line cliff returned. One dollar over $62,600 single or $84,600 married can cost more than $8,000. Calculate your own edge.
Concept19 min readCalculator
Austria's 100-Year Bond: What Actually Happens If You Hold It to Maturity
The famous 75% loss is measured from the 2020 peak. What the math says about duration, convexity, and actually holding a century bond through to 2120.
Concept21 min read
Give Your Children a Floor, Not a Throne: A Better Way to Think About Generational Wealth
When researchers randomized wealth to parents, their children's skills were unaffected. Inheritance does cut paid work, by 4.4 points at the retirement margin. What the evidence says to leave.
Concept18 min readCalculator
403(b) vs. 457(b) vs. 401(k): Contribution Limits, Hidden Risks, and When to Use Both
There are two different 457(b)s, and one is an unsecured promise. The $49,000 stacking rule, the early-retirement bridge, and the creditor risk nobody mentions.
Strategy19 min readCalculator
Should H-1B Visa Holders Contribute to a 401(k)? A Cross-Border Decision Framework
Your visa horizon is not your investment horizon. When the 401(k) wins for temporary US residents, what happens if you leave, and a deep dive for India returnees.
Strategy18 min readCalculator
The Merton Share: Can a Formula Beat 100% Stocks, or Just Size Risk Better?
28% of finance-trained subjects went bust betting on a 60% coin. The Merton share sizes risk with a formula. Does the dynamic version beat 100% stocks?
Concept14 min readCalculator
Life-Cycle Finance: A Financial Plan for Your Entire Life
Four Nobel laureates built the theory of lifetime saving and spending. Why does retirement planning still run on rules of thumb like the 4% rule?
Concept12 min readCalculator
The 8% Withdrawal Rule: Where Dave Ramsey's Retirement Math Breaks
Dave Ramsey told a caller she could withdraw 8% of a $1.5M portfolio forever because stocks average 12%. Historically that survived just 1 in 5 retirements. Why an average return is not a safe withdrawal rate, with a calculator.
Strategy16 min readCalculator
Will Demographics Crash Home Prices? What DIY Investors Should Know
Low birth rates and slowing household formation trim home-price appreciation by a modest amount. What the evidence supports, with a calculator.
Strategy14 min readCalculator
How Much Do You Really Need to Retire? What the 2026 Surveys Say
Americans' 2026 retirement "magic number" is $1.46M, up $200K in a year on sentiment. Why a national average is the wrong target, and how to compute your own. With a calculator.
Strategy15 min readCalculator
An Index Fund Is Not a Financial Plan
Low-cost investing solves one problem. Your household still needs rules for taxes, risk, incapacity, retirement, and the handoff. With a plan gap-audit tool.
Strategy18 min readCalculator
How to Withdraw From a 401(k) or IRA Before 59½ Without the Penalty
Penalty-free is not cost-free. Rule of 55, 72(t), Roth ladders, loans, hardships, the first-home and medical exceptions, and the hidden cost of lost compounding. With a calculator.
Strategy14 min readCalculator
Should You Invest Like Yale? The Endowment Model vs. a Boglehead Portfolio
Yale returned 11.1% in 2025 with private equity and hedge funds. Should you copy it? Why the endowment model works for Yale, why Swensen told individuals to index, and a hurdle-rate calculator.
Strategy16 min readCalculator
Should Retirees With Social Security or a Pension Hold More Stocks?
Reliable lifetime income changes how much risk your portfolio can take. When guaranteed income means more stocks, when a fixed nominal pension does not, and how RMDs fit. With a floor-coverage calculator.
Strategy15 min readCalculator
Do You Need a Financial Advisor? How to Decide and Vet One
Most people with a simple situation can do it themselves. Here is how to tell when paying for advice is worth it, what type of advisor fits, and how to vet a specific person before you hire.
Concept16 min readCalculator
Savings Rate vs Investment Returns: What Matters More Depends on Your Portfolio Size
Savings rate or investment returns: which matters more? It depends on your contribution-to-portfolio ratio. The math, the five-stage lifecycle, and a calculator that names your current bottleneck.
Strategy16 min readCalculator
Grow Income Faster Than Expenses: The Underrated Math Behind Wealth and Freedom
Your savings gap matters more than your lattes. The math of growing income faster than expenses, why it beats small-expense guilt, and how to spend more as you age while still building wealth.
Strategy15 min readCalculator
High Income Is Not Wealth: How HENRYs Build Financial Independence
A high salary is a flow; wealth is the stock it builds. The math behind why HENRYs stay 'not rich yet,' the FI ratio to track, and how to close the gap.
Strategy15 min readCalculator
Don't Automatically Roll Over Your Old 401(k): A DIY Guide to Fees, Backdoor Roths, and Asset Protection
61% of IRA owners hold rollover assets, but rolling your old 401(k) to an IRA can break your backdoor Roth and cost you ERISA protection. A fiduciary-style framework, with a decision tool.
Concept19 min readCalculator
Is $1 Million Enough to Retire? Why $3 Million May Be the New $1 Million
Is $1 million enough to retire, or is $3 million the new benchmark? See how withdrawal rates, Social Security, FIRE math, inflation, and spending flexibility set your real number.
Concept16 min readCalculator
Should You Count Your Home and Cars in Net Worth?
Yes, count your home and cars in net worth, but not in your FIRE number. Learn the four-net-worth framework, how home equity funds retirement, and the house-rich, cash-poor trap.
Concept17 min readCalculator
Do You Need a Paid-Off Home to Retire?
No, you do not need a paid-off home to retire, but you need durable, flexible cash flow. How a mortgage affects sequence risk, taxes, and FIRE math, with a keep-vs-payoff calculator.
Strategy16 min readCalculator
90/10 vs. 60/40: Is the WSJ Right That You Own Too Many Bonds?
A WSJ opinion piece says wealthy investors should hold 90% stocks and 10% cash. A portfolio researcher asks: why not add Treasury futures on top? The evidence for and against each approach.
Strategy18 min readCalculator
Die With Zero vs. FIRE: Should You Spend Earlier or Let Your Money Compound?
Many high-asset retirees never draw down principal. FIRE optimizes for safety, Die With Zero for memories. Here is a third path that funds both.
Strategy8 min readCalculator
Money Path: The Interactive Personal Finance Flowchart for 2026
Answer 7 questions and see where you are on the 7-camp climb from budget to summit. A modern, personalized take on the r/personalfinance flowchart with 2026 IRS limits and Summitward tool deep-links.
Strategy13 min readCalculator
Bengen on Inflation: The Math Behind Retirement's Greatest Risk
Bill Bengen calls inflation the greatest enemy of retirees. The math is sharper: unexpected inflation alongside an early bear market breaks the 4% rule. Replay every historical 30-year retirement window.
Strategy14 min read
Bengen vs. Bengen: Should Retirees Outsource Equity Risk to a Third-Party Signal?
Bengen's 1994 paper warned against pulling back from stocks after a bad early market. His 2026 recommendation moves toward doing exactly that, via third-party perceived-risk services. What the evidence supports, and what it doesn't.
Strategy15 min readCalculator
Mega Backdoor Roth Before 59½: What Comes Out, What's Taxed, What's Penalized
MBDR dollars before 59½ live in three places: after-tax 401(k), Roth 401(k), Roth IRA. Each has its own ordering rules, 5-year clocks, and penalty math. Walk through your own numbers with the simulator.
Strategy16 min readCalculator
The Treasury Bond Fantasy: Can You Actually Live Off U.S. Government Interest Forever?
A viral tweet imagines putting your entire net worth into Treasury bonds and living off the coupons. The math is seductive and the implementation is mostly wrong. After-tax-real income, TIPS, I-bonds, and an interactive calculator that shows what the coupon actually buys.
Concept15 min readCalculator
The Risk-Free Rate Is Your Hurdle Rate: How to Use Treasuries and TIPS as the Starting Point for Every Investment
At 5.03% nominal and 2.74% real on May 12 2026, Treasury and TIPS yields set the hurdle every risky asset has to clear. The framework, the common mistakes, and a Hurdle Rate Check calculator.
Strategy16 min readCalculator
How to Build a TIPS Ladder: Turning Retirement Savings Into Inflation-Adjusted Income
TIPS ladders convert savings into guaranteed real cash flows. How to price one off the live real yield curve, how your funded ratio decides how much to floor, the phantom-income tax gotcha, and a calculator.
Concept15 min readCalculator
Money and Happiness: What the Research Actually Says About Funding a Good Life
The 2010 $75k plateau was an oversimplification. PERMA-V, time affluence, and how to use your portfolio to fund a good life, not just to maximize net worth. Includes a Time Affluence Calculator.
Concept14 min readCalculator
The Stock Market Rewards Optimists, But Not the Naïve Ones
Elroy Dimson's Rational Reminder interview, distilled. Easy data bias, U.S. exceptionalism, the GDP-vs-returns gap, and a stress tester that shows how much your plan depends on the equity risk premium.
Concept13 min readCalculator
The Stock Market Is Not the Economy: Why GDP Growth Doesn't Predict Stock Returns
The US is 26% of global GDP and 63% of MSCI ACWI. Ritter (2005) found cross-country GDP-equity correlation is negative. Five links separate GDP from per-share return, and a GDP-to-Stock-Return Bridge calculator walks every one.
Methodology16 min readCalculator
The R² Trap: Why Rolling P/E vs. 10-Year Return Charts Are Less Certain Than They Look
Why the viral R² = 0.73 forward P/E vs. 10-year return chart looks more certain than it is. Rolling-window overlap, persistent regressors, and a Monte Carlo demo of spurious R²-with the BRW (2008), Stambaugh, and Goyal-Welch evidence behind it.
Concept10 min read
What Real Return Should You Assume for Stocks? About 5%, Not 7%
The popular 7% real figure is U.S.-only and often quoted as an arithmetic mean. The globally diversified geometric historical mean is closer to 5% real. Here is where each number comes from, why the gap matters for your planning, and what to do about it.
Concept17 min readCalculator
Do Stock Valuations Still Matter? What CAPE Tells You About the Next Decade
CAPE near 40 doesn't mean sell. It means lower your forward return assumptions. The academic evidence on valuation ratios as long-horizon return forecasts, the valid criticisms of CAPE, and an interactive calculator for your own assumptions.
Concept18 min readCalculator
Do 200 Years of Stock Returns Still Matter? Yes, but Not as a Forecast
Two centuries of returns show regimes, not a clean 6-7% real constant. McQuarrie's corrections, the railroad case, and terminal wealth across five regimes.
Strategy16 min read
Roth 401(k) as Vault, Roth IRA as Valve: Asset Protection vs. Withdrawal Flexibility
ERISA-protected Roth 401(k) is the accumulation vault. Roth IRA ordering rules are the withdrawal valve. The sequencing strategy + 5-year clock and pro-rata gotchas, with a withdrawal-path comparator.
Concept13 min readCalculator
Stocks Usually Win. "Usually" Is Not a Financial Plan.
Stocks lost to bonds for 20, 41, and even 68 years in a row. Your retirement plan needs to survive that scenario. Here's what 220 years of data show.
Strategy16 min read
The Mega Backdoor Roth Is a Much Bigger Deal Than the Backdoor Roth IRA
Mega Backdoor Roth uses the much larger 401(k) annual additions limit, not the IRA limit. A plain-English walkthrough plus a calculator for your actual room.
Concept16 min read
60/40, Target-Date Funds, or 100% Stocks Forever? They're Solving Different Problems.
The 60/40 portfolio, Vanguard's target-date glide path, and Cederburg's all-equity research are not competing answers to the same question. Here is what each approach actually solves, who it is for, and who it is not for.
Strategy18 min read
Tax-Aware Decumulation: A Guide for Self-Directed High Earners
For high earners, early retirement is not a 4% rule problem. It is a multi-decade tax-management challenge across income brackets, NIIT, IRMAA, ACA subsidies, and Roth conversions. Here is the framework.
Strategy15 min readCalculator
When to Claim Social Security: The Math Behind the Decision
Claiming at 62 vs. 67 vs. 70 changes your lifetime benefits by hundreds of thousands of dollars. See the break-even math, three case studies, and how taxes complicate the simple answer.
Strategy16 min readCalculator
Roth vs. Traditional 401(k) and IRA: The Tax Math That Actually Matters
The answer depends on one number: your break-even retirement tax rate. Use the interactive calculator to find yours, see 2026 brackets, and learn why tax diversification matters more than picking the 'right' account.
Strategy14 min read
Sequence of Returns Risk: Why Your Retirement Year Matters More Than Your Average Return
Two retirees with nearly identical 30-year returns can have opposite outcomes. Learn how the order of early returns determines whether your portfolio survives, and how backtesting and Monte Carlo simulation reveal risks that averages hide.
Methodology12 min read
Asset-Liability Matching: Align Your Bonds to Your Goals
Learn how to match your bond portfolio duration to your liability timeline, reducing interest rate risk and ensuring your assets are there when you need them.
Concept16 min readCalculator
FIRE Calculator: How Much Do You Need to Retire Early?
Calculate your personal FIRE number from your spending and safe withdrawal rate. Reference tables for FIRE numbers by spending level, a savings rate timeline chart, and three fully worked examples at different income levels.
Concept20 min read
The Complete Guide to Financial Independence (FIRE Movement 2026)
Everything you need to know about FIRE: how to calculate your number, types of FIRE, the five pillars of financial independence, and how to build a plan that actually works.
Concept15 min readCalculator
Coast FIRE Calculator: Find Your Coast Number at Every Age
Calculate your Coast FIRE number with step-by-step formulas, comprehensive tables by age, and three worked examples. Find out if you have already reached Coast FIRE and what to do next.
Concept14 min read
Coast FIRE: When Your Portfolio Can Grow Without You
Coast FIRE is the point where compound growth alone will carry your portfolio to financial independence. Learn the math, see worked examples by age, and understand how it compares to Barista FIRE and Lean FIRE.
Strategy15 min read
Safe Withdrawal Rate: Why the 4% Rule Isn't Enough
The 4% rule sets a floor for the conversation. Five modern approaches, from guardrails to CAPE rules, stress-tested with Monte Carlo across thousands of paths.
Concept12 min readCalculator
How to Determine Your Financial Independence Number
Your FI number is the portfolio size that lets you stop working. Learn how to calculate it from your spending and safe withdrawal rate, and explore Lean, Comfortable, and Fat FI tiers.
Concept15 min read
Lifecycle Asset Allocation: Why Young Investors Should Hold More Stocks
In your 20s, future earnings dwarf your portfolio. Why '100 minus your age' is too conservative, and how human capital and glide paths reshape allocation.
Concept15 min read
Monte Carlo Retirement Simulation: A Complete Guide
Learn how Monte Carlo simulation stress-tests your retirement plan across thousands of market scenarios, and why a single average return is not enough.
Strategy13 min read
Roth Conversion Ladder: A Step-by-Step Strategy
How early retirees use Roth conversion ladders to access retirement funds penalty-free while minimizing lifetime taxes.
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Disclaimer: This page is for educational and informational purposes only and is not financial, investment, tax, or legal advice. Summitward is not a registered investment adviser, broker-dealer, or financial planner, and no fiduciary relationship is created by your use of it. Consult a qualified professional before acting. Past performance and model projections do not guarantee future results. Provided as is, without warranty of any kind; see our Terms of Service for limitations of liability.