Withdrawal strategy & market risk: the overview
Saving for retirement is about how much you will have. Spending it is harder: you need to know how much can come out each year without running out, when neither market returns nor your lifespan is known in advance. Planning for that means looking at a range of outcomes, and at rules that adjust spending as the portfolio moves.
The decisions
- How to judge a plan. A projection at one average return hides the thing that sinks plans: bad years arriving at the wrong time. US stocks returned −36.5% in 2008 and −43.8% in 1931[1]. A Monte Carlo simulation runs the plan through thousands of possible return sequences and reports how often, and by how much, it falls short. Its headline “success rate” is only a summary: it says nothing about how close the failures came, or how much was left unspent in the paths that succeeded.
- Sequence of returns. The same average return does very different things depending on its order. Losses in the first years of withdrawals do the most damage, because money sold at low prices to pay for spending is not there for the recovery. That is the risk a bond tent addresses: holding more bonds in the years just before and after retiring, then letting the stock share rise again. Bonds are not a guarantee: in 2008 10-year Treasuries returned +20.1%, but in 2022 they returned −17.8%, the same year stocks returned −18.0%[1].
- Fixed or flexible spending. A fixed, inflation-adjusted withdrawal is simple but ignores what markets do. Guardrail rules cut spending after bad years and raise it after good ones, which lets a plan start higher in exchange for accepting some variation. Whether that suits you depends on how much of your spending could actually bend.
- Real or nominal dollars. Prices rose 8% in 2022[2]. A projection shown in future (nominal) dollars looks far larger than the same plan in today’s dollars; compare plans in one or the other, never mixed.
- Which account to draw from. Taxes are part of withdrawal strategy. Pre-tax withdrawals before 59½ can owe a 10% additional tax[3], and from 73 or 75 required minimum distributions set a floor on what comes out of pre-tax accounts each year[4]. Where each kind of investment sits (asset location) changes how much of the return you keep.
What to read, in order
Start with Monte Carlo vs. a single number, then a crash at retirement for the sequence problem in concrete terms. The success-rate trap explains what the headline percentage leaves out, and spending guardrails and the bond tent are the two main responses to it. Asset location covers which account should hold what, and nominal vs. today’s dollars explains the display toggle that changes every chart. Two how-tos show the ideas in the simulator: finding a maximum spend and stress-testing a plan. The tax side of withdrawals is covered under Taxes in retirement.
Start here
- Monte Carlo vs “the number”: why your plan is a probabilitySingle-figure targets like 25× spending hide what actually breaks retirements: the order of returns. Here is what a Monte Carlo simulation does and what its success rate does and doesn’t mean.
- What a 2008-style crash at retirement actually doesSequence-of-returns risk with real numbers: 2008 by asset class, a worked first-year crash on a 60/40 portfolio, why early crashes hurt and late ones don’t, and the defenses that work.
Go deeper
- Why an 80% 'success rate' leaves millions unspentFixed-real spending caps your lifestyle but not your wealth, so the median future dies rich. What the success rate hides, and how guardrails price the surplus back in.
- Retirement spending guardrails vs. fixed withdrawalsHow retirement spending guardrails (Guyton–Klinger cuts and raises) work, why probability-of-success planning can leave large unspent legacies, and the lifestyle-floor question that replaces the success rate.
- The bond tent strategy: allocation for sequence-of-returns riskThe bond tent strategy raises bond allocation around retirement to defend against sequence risk, the danger in early retirement years, and 2008's lesson.
- Asset location: which investments belong in which accountTaxable, pre-tax and Roth accounts each tax growth differently. That is why bonds usually go in the 401(k), growth goes in the Roth, and index funds can sit in taxable.
- Nominal vs. today’s dollars: the toggle that changes everythingOver 30–60 years, inflation makes nominal charts look better than they are. Why $3M in year 40 buys ~$920k of today’s lifestyle, and when to use each mode.
How to model it in the simulator
- How to find your maximum sustainable spendingHow Strategy Lab Tool 1 searches for the highest fixed real spend that meets your success target, and why Tool 1b solves for a spending floor: under guardrails the risk moves from running out to lifestyle cuts.
- How to stress-test your plan against a 2008 crashPut 2008's actual returns into every simulated path (at retirement, in a random year, or in a year you pick), with or without the 2009 rebound. Then read the success gauge, fan chart and event markers to see what a worst-case sequence really costs.
Worked examples and comparisons
- IRA withdrawal vs selling taxable investments for spending: The same $40,000 of spending money taken from a traditional IRA or raised by selling shares: this year’s tax both ways, and why it differs.
See it in your plan
Load a demo plan that retires into a 2008-style crash and compare it with the plain run. Try it in the simulator →
If you already have a saved plan, the link only takes you to the right panel; your plan is not changed.
Related topics
This page explains how the rules work. It is not financial, tax or investment advice. Read the disclaimer.