Reference material

Resources

Books, calculators, and tools referenced throughout the Freedom System — organized by phase.

Essential reading

The Psychology of Money
Morgan Housel

The best single book on how behavior — not knowledge — determines financial outcomes. Required reading before Step 1.

Behavior
The 4 Disciplines of Execution
McChesney, Covey, Huling

The framework behind every step's WIG + lead measures + scoreboard system. Read this to understand why the execution layer works.

Execution
A Simple Path to Wealth
JL Collins

The foundational case for low-cost index investing. Backs up the investment philosophy in Steps 9–12.

Investing
I Will Teach You to Be Rich
Ramit Sethi

The automation-first approach to personal finance. Directly aligned with Steps 0.4 and the automation layer throughout Phase 1.

Automation

Calculators & tools

Retirement
FIRECalc

Monte Carlo retirement simulator. Use to validate your FI number from Step 0.1.

Net Worth
Personal Capital / Empower

Free dashboard for tracking net worth across all accounts. Connects to Step 0.2.

Insurance
Policygenius

Term life and disability insurance comparison. Referenced in Steps 1 and 2.

Cash Flow
YNAB

Zero-based budgeting tool. Pairs with Step 0.3 for your cash flow reality check.

Investing
Fidelity / Vanguard / Schwab

Low-cost brokerage homes for your Roth IRA, HSA, and taxable accounts in Steps 9–12.

Debt
Undebt.it

Payoff calculator and tracker for the avalanche method used in Step 5.

Key numbers to know

2026 contribution limits
IRS · updated annually

401(k): $23,500 · Roth IRA: $7,000 · HSA (family): $8,550 · HSA (individual): $4,300. Catch-up contributions available at age 50+.

Tax-advantaged
The 4% rule
Trinity Study

Withdraw 4% of your portfolio in year one of retirement, adjust for inflation annually — historically sustainable for 30+ years. Your FI number = annual expenses × 25.

FI number