Cat-13 · T137 · Retirement & Withdrawal Planning

Safe Withdrawal Rate Calculator

Model portfolio longevity under the 4% rule, dynamic withdrawal strategies, and the Guyton-Klinger guardrail approach. Compare fixed, flexible, and guardrail withdrawals with sequence-of-returns risk analysis. Client-side. Zero PII.

v1.0

4% Rule Guardrail Method Zero PII Client-Side

Scope & reliance — 🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only. Embedded rates, thresholds, and regulatory citations are static reference values that may age — verify against current primary sources and your own data before relying on any output for commercial, legal, or compliance decisions. Deterministic logic · no inference · zero PII · CC BY 4.0.

Educational Use OnlyThis tool provides educational modelling for retirement withdrawal strategies. It is not financial advice. Results depend on assumed return rates and inflation which cannot be predicted. Consult a qualified financial advisor before making retirement decisions.

Retirement Parameters

Starting Portfolio ($)

Annual Withdrawal ($)

$40K on $1M = 4% rule. Adjust as needed.

Retirement Duration (Years)

Portfolio Return — Nominal (%)

Historical 60/40 avg: ~7-8% nominal

Inflation Rate (%)

Sequence-of-Returns Stress (%)

Early drawdown shock (% drop in first 3 years)

Guardrail Upper / Lower (%)

Upper: cut by 10% | Lower: raise by 10%

Withdrawal Strategy Comparison

Year-by-Year Projection (Fixed Withdrawal)

Withdrawal Planning Summary