FINANCEMonths to result

The 25x Burn Rate Number

Calculate your exact wealth target by multiplying your annual burn rate by 25

Problem it solves

poor financial decisions

Best for

People looking to apply The 25x Burn Rate Number in their work and life

Not ideal for

Those seeking quick fixes without sustained effort or reflection

Overview

Why this framework exists

Economic security means your passive income exceeds your burn rate. Galloway operationalizes this by having you calculate your annual spending (including taxes), then multiply by 25. This yields the asset base needed to generate a 4% real return that covers your lifestyle indefinitely. The exercise forces you to define what 'enough' actually means for you personally, turning a vague aspiration into a specific, trackable number.

Core principles

5 total
  1. Financial security becomes achievable once you define it as a specific number rather than a vague aspiration.
  2. Your required asset base is directly proportional to your spending, which means reducing spending is functionally equivalent to generating more wealth.
  3. Calculating the exact asset level needed to live from passive income converts a distant dream into a concrete engineering problem.
  4. Knowing your number also reveals how much of your current income is genuinely building toward security versus being quietly consumed.
  5. Defining what 'enough' means for you personally is a prerequisite for any rational wealth-building strategy.

Steps

4 steps
  1. Calculate your realistic annual burn rate
    Audit your actual spending over the past 12 months using bank and credit card statements. Include everything: housing, food, transportation, entertainment, subscriptions, clothing, healthcare, and irregular expenses spread into monthly averages. Be honest about who you are rather than projecting an unrealistically frugal version of yourself.
  2. Add a tax buffer to your burn rate
    Add 20% to your annual spending total to cover taxes on investment income. If you live in or plan to live in a high-tax state like California or New York, bump this to 30%. This gives you a tax-adjusted annual burn rate.
  3. Multiply by 25 to get your number
    Take your tax-adjusted annual burn rate and multiply by 25. This is your wealth target: the invested asset base needed so that a 4% annual real return covers your lifestyle. For example, an $80,000 annual burn means a $2 million target.
  4. Adjust for inflation and time horizon
    If your target retirement date is decades away, account for inflation by projecting your number forward. A rough rule: money roughly doubles in purchasing power cost every 18-20 years at moderate inflation. Revisit and refine this number annually as your life circumstances evolve.

Examples

1 cases
Galloway's friend Lee vs. the swing-for-the-fences approach

In his twenties, Galloway dismissed his friend Lee's $2,000 IRA contribution, declaring that if $2,000 mattered at 65, he would put a gun in his mouth. Galloway chose the volatile entrepreneurship path instead of steady saving. While both ultimately reached economic security, Galloway's path involved a dot-com bust, a divorce, and the Great Recession, leaving him near-broke at 42 when his first son was born.

OutcomeLee's boring, steady approach reached the same destination with far less stress and volatility, demonstrating that knowing your number and methodically working toward it beats hoping for a windfall.

Common mistakes

3 traps
Treating the number as pass-fail rather than a spectrum
Getting most of the way to your target still dramatically improves your quality of life. Economic security is not binary. Even reaching 60% of your number reduces stress and expands options significantly.
Setting the burn rate based on aspiration rather than reality
If your social life revolves around dining out and you budget as if you will switch to home cooking forever, you will fail and abandon the plan. The burn rate must reflect an actual life you would be content living.
Ignoring the number entirely because it feels impossibly large
Galloway emphasizes that the number is a rough sketch to start planning from, not a precise requirement. The point is to have a directional target that informs daily spending decisions, not to be paralyzed by a large figure.

Origin story

How this framework came to be

Economic security means your passive income exceeds your burn rate. Galloway operationalizes this by having you calculate your annual spending (including taxes), then multiply by 25. This yields the asset base needed to generate a 4% real return that covers your lifestyle indefinitely. The exercise forces you to define what 'enough' actually means for you personally, turning a vague aspiration into a specific, trackable number.

Source

Traced to primary
Source · BOOK
The Algebra of Wealth: A Simple Formula for Financial Security
Scott Galloway · 2024
Open source →

Related frameworks

Browse all Finance →