Safe Withdrawal Rate Simulator

Model retirement withdrawal strategies and portfolio longevity under different market sequences.

Safe Withdrawal Rate Simulator
A sequence-of-returns lens on retirement withdrawals. Explore how different spending rules behave across history (and bootstrap Monte Carlo).

What SWR is: a planning stress-test for how long a portfolio might fund withdrawals under different market sequences.

What SWR is not: a guarantee. Real life includes taxes, spending flexibility, one-time events, healthcare costs, and changing allocations.

1) Household & timeline
Set ages and planning horizon.

Locks retirement start age to current age.

2) Portfolio assumptions
Allocation, fees, inflation.
Stocks60%
Bonds40%

Annual returns use US stocks + 10y US bonds; rebalanced annually.

3) Strategy
Choose a withdrawal rule for the detailed view.

Used when rate choice is Custom.

Default: ON

4) Simulation engine
Historical rolling periods (recommended) or Monte Carlo.

Used to compute a suggested initial withdrawal rate for the active scenario.

Success rate
100.0%
Median ending portfolio
$12.1M
Worst-case (5th percentile) ending
$6.2M
Median max drawdown
-24.3%
Median avg withdrawal
$114.3K
Suggested initial SWR
5.30%
You’re in a solid range—let’s make it resilient.
Even good projections benefit from a tax-aware, sequence-aware plan and a clear withdrawal or conversion strategy.
  • Success probability: 100%
  • Small assumption changes can materially change outcomes.
  • A coordinated plan can reduce risk and improve efficiency.

Schedule a planning session to confirm you’re optimized and protected against downside scenarios.

Scenario comparison (up to 3)
Compare success + downside across strategies under the same market sequences.
Static 3.5%
Static 3.5%

Annual

This is the active scenario. Edit its strategy settings in the left-side Strategy panel.
Static 4.0%
Static 4.0%

Annual

This card controls a comparison scenario. The detailed charts below reflect the selected scenario.
Guardrails
Guardrails 4.0%

Blocks raises

Annual

This card controls a comparison scenario. The detailed charts below reflect the selected scenario.
ScenarioSuccessMedian ending5th pct endingMedian max DDMedian avg wd
Static 3.5%100.0%$12.1M$6.2M-24.3%$114.3K
Static 4.0%100.0%$9.9M$5.0M-25.0%$130.6K
Guardrails100.0%$8.6M$4.9M-27.2%$167.6K
Portfolio balance over time
Median with 5th–95th percentile band.
Withdrawals over time
Shows dynamic adjustments clearly (median + band).
Failure distribution
When failures happen (age at end-of-year depletion).
No failures in the simulated runs.
Year-by-year table (representative run)
Shows the run closest to the median ending balance.
AgeYearStartWithdrawalStock rBond rFeesEndNote
601962$1,500,000$0-8.8%5.7%$7,274$1,447,576
611963$1,447,576$022.6%1.7%$8,268$1,645,413
621964$1,645,413$016.4%3.7%$9,160$1,822,909
631965$1,822,909$012.4%0.7%$9,819$1,953,964
641966$1,953,964$0-10.0%2.9%$9,299$1,850,523
651967$1,850,523$64,76823.8%-1.6%$10,147$2,019,327
661968$2,019,327$66,38810.8%3.3%$10,526$2,094,626
671969$2,094,626$68,047-8.2%-5.0%$9,429$1,876,343
681970$1,876,343$69,7483.6%16.8%$9,831$1,956,394
691971$1,956,394$71,49214.2%9.8%$10,598$2,108,937
701972$2,108,937$73,27918.8%2.8%$11,439$2,276,315
711973$2,276,315$75,111-14.3%3.7%$10,222$2,034,212
721974$2,034,212$76,989-25.9%2.0%$8,343$1,660,306
731975$1,660,306$78,91437.0%3.6%$9,776$1,945,520
741976$1,945,520$80,88723.8%16.0%$11,252$2,239,174
751977$2,239,174$82,909-7.0%1.3%$10,385$2,066,702
761978$2,066,702$84,9826.5%-0.8%$10,265$2,042,678
771979$2,042,678$87,10618.5%0.7%$10,891$2,167,226
781980$2,167,226$89,28431.7%-3.0%$12,244$2,436,569
791981$2,436,569$91,516-4.7%8.2%$11,779$2,344,061
801982$2,344,061$93,80420.4%32.8%$14,106$2,807,176
811983$2,807,176$96,14922.3%3.2%$15,546$3,093,569
821984$3,093,569$98,5536.2%13.7%$16,350$3,253,669
831985$3,253,669$101,01631.2%25.7%$20,339$4,047,465
841986$4,047,465$103,54218.5%24.3%$23,822$4,740,674
851987$4,740,674$106,1305.8%-5.0%$23,521$4,680,633
861988$4,680,633$108,78416.5%8.2%$25,879$5,150,003
871989$5,150,003$111,50331.5%17.7%$31,733$6,314,962
881990$6,314,962$114,291-3.1%6.2%$31,208$6,210,388
891991$6,210,388$117,14830.2%15.0%$37,820$7,526,206
901992$7,526,206$120,0777.5%9.4%$40,081$7,976,165
911993$7,976,165$123,07910.0%14.2%$43,846$8,725,381
921994$8,725,381$126,1561.3%-8.0%$41,956$8,349,340
931995$8,349,340$129,31037.2%23.5%$54,134$10,772,632
941996$10,772,632$132,54222.7%1.4%$60,744$12,088,110

Disclosures
Educational only (hypothetical modeling).

This simulator is for educational purposes only and is not investment, tax, or legal advice.

Results are hypothetical and highly sensitive to return sequence, fees, inflation, and spending behavior. Past performance does not guarantee future results.

If you’d like a plan tailored to your household, taxes, and account structure, consider scheduling a consultation.

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