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New Feature: Sankey Cashflow Chart

The Sankey Cashflow Chart provides a visual map of how money moves through your financial plan.

Written by Nancy Gates
Updated over a week ago

Overview

The Sankey Cashflow Chart can be found under Insights > Lifetime Cash Flow.

Instead of reviewing income, taxes, savings, and spending as separate line items, the Sankey Cashflow Chart displays them as proportional flows — helping you quickly understand:

  • Where your income comes from

  • How much goes to taxes

  • What funds your lifestyle

  • What remains invested or saved

The wider each flow, the larger the dollar amount it represents.

What the Chart Shows

The Sankey diagram organizes your plan into three core stages:

1. Income Sources

Examples may include:

  • Earned income

  • Social Security

  • Pension income

  • Rental income

  • Portfolio withdrawals

  • Required Minimum Distributions (RMDs)

Each source is displayed proportionally based on its contribution for the selected year.

2. Outflows

Income flows into:

  • Federal and state taxes

  • Healthcare costs

  • Core living expenses

  • Discretionary spending

  • Debt payments

This makes it easy to see the true tax drag and the breakdown between essential and flexible spending.

3. Savings & Account Impact

Remaining funds may:

  • Be reinvested

  • Increase taxable or retirement account balances

  • Offset withdrawals

  • Support surplus savings years

In retirement, you can clearly see how guaranteed income compares to portfolio withdrawals.

How to Use the Chart

The Sankey Cashflow Chart is especially helpful when:

Comparing Work vs. Retirement Years

See the shift from earned income to Social Security and withdrawals.

Evaluating Tax Strategy

Understand how Roth conversions, withdrawal order changes, or delayed Social Security affect tax flow.

Stress Testing Spending

Visualize how increased spending impacts portfolio withdrawals.

Identifying Concentration Risk

Quickly spot over-reliance on a single income source.

How to Interpret the Flows

  • Wider bands = larger dollar amounts

  • Flows split when income moves to multiple destinations (e.g., part to taxes, part to spending)

  • Narrower post-tax flows show true spendable income

Think of the chart as a flow map — not a balance sheet. It focuses on movement during a selected year, not cumulative totals.

Best Practices

  • Review early retirement years carefully — sequence risk is often most impactful then.

  • Compare multiple years (e.g., age 60, 67, 73, 85) to understand transitions.

  • Use it alongside Guardrails or probability insights to connect cashflow with sustainability.

Why It Matters

Financial plans are interconnected.

A decision in one area — spending, claiming age, Roth conversions — affects taxes, withdrawals, and long-term balances.

The Sankey Cashflow Chart helps you see those relationships instantly, so you can make more informed, confident decisions.

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