Early Retirement Projection Tool - Design Document

Overview

This tool will help users visualize their path to early retirement by projecting their investments, expenses, and 'Financial Independence Number'.

Key Features:

• Current Financials: Inputs for current age, retirement age goal, current savings, annual income, annual expenses.
• Investment Assumptions: Fields for expected annual investment returns, inflation rate.
• FI Number Calculator: Automatically calculates the 'Financial Independence Number' (25x annual expenses).
• Contribution Modeler: Allows users to adjust monthly savings contributions.
• Retirement Timeline: Projects years until FI, showing how different savings rates impact the timeline.
• Withdrawal Strategy: Basic Safe Withdrawal Rate (SWR) consideration.
• Visualizations: Line graph showing investment growth over time vs. FI number.

Interactivity:

• Real-time updates to FI date and investment projections with changes to variables.
• Scenario analysis for different savings rates or investment returns.