The Spending Rule: How much can you withdraw from your assets each year?

You have a net worth of €5 million. You are 55 years old and want to retire at 60. The question: How much can you spend annually without using up your capital? €200K? €250K? €300K? The answer is based on the “Spending Rule” – a scientific formula that Yale uses. This article will show you the math behind it and how to determine the right rate for your personal case.

What you'll take away from this article

How to understand the 4% rule and its limits and use it for your capital strategy
How to understand yale's 5.25% smoothing rule and use it for your capital strategy
How to understand the personal spending rule: 3% to 6% and use it for your capital strategy
How to understand your personal spending calculation and use it for your capital strategy

The 4% Rule and its limits

The “4% Rule” is the classic formula:You can withdraw 4% of your portfolio in the first year, then increase withdrawals based on inflation.

At €5 million that means: €200K in year 1, €204K in year 2 (at 2% inflation), €208K in year 3, etc.

This rule has worked well for the last 50 years - with a 94% success rate ("success" means: the money lasts 30+ years). But the 4% rule has weaknesses:

It ignores the age of the investor (a 35-year-old with a 50-year horizon needs a different ratio than a 75-year-old)
It ignores the current market valuation (after a bull market 4% might be too aggressive)
It ignores the actual portfolio structure (If you have 100% bonds, 4% is unrealistic)

Yale's 5.25% Smoothing Rule

Yale uses a “Spending Rule with Smoothing”:

Withdrawal = Prior Year Withdrawal * (1 + Inflation) * 0.8 + Current Portfolio Value * 5% * 0.2

This means: 80% of the withdrawal is based on inertia (prior year + inflation), 20% on the current portfolio size.

The advantage: This rule reduces the volatility of withdrawals. If your portfolio loses 30% in a year, the withdrawal doesn't suddenly drop by 30%. It only drops ~6% because the 80% component remains stable.

For you: If you have €5 million and took out {{200k}}, your withdrawal next year will be approximately {{200k}} * 1.02 (inflation) = {{204k}}, even if your portfolio drops to {{4.5m}}.

The personal spending rule: 3% to 6%

The correct withdrawal rate depends on three factors:

1. Period (The longer, the lower)
- 10 year horizon: 6-8% is acceptable
- 30 year horizon: 3-4% is safer
- 50+ year horizon: 2-3% is the norm (foundations)

2. Portfolio structure (the more diversified, the higher)
- 100% bonds: 3-4% max.
- 60/40 portfolio: 4-5% is safe
- Yale-like (50% Alternatives): 5-6% is realistic

3. Flexible vs. Fixed (The more flexible you are, the higher)
- “I need exactly €250K per year, no matter what”: 4% max.
- »I can reduce to €200K if necessary«: 5-6% possible

Your personal spending calculation

Step 1: Define your time horizon "I'm 55, I want to live until 95 = 40-year horizon"

Step 2: Evaluate your portfolio structure »My portfolio: 50% equities, 30% real estate, 20% bonds = moderate risk«

Step 3: Determine your flexibility »I need at least €250K per year, but can go down to €200K if markets crash.«

Recommendation: 4-5% is safe for you
At €5 million: €200K-€250K per year

Step 4: Use the smoothing rule - Year 1: €250K - Year 2 (when portfolio drops to €4.8M): €250K * 1.02 * 0.8 + €4.8M * 5% * 0.2 = €204K + €48K = €252K This is more stable and less “shocking” than a sudden drop to €192K.

4% Classic Rule (30 years)

5.25% Yale's smoothing quota

94% 4% Rule Success Rate

40 years Typical withdrawal horizon

Withdrawal rates by time horizon

Secure odds over 10, 30 and 50 years

Wealth Evolution: With vs. without Smoothing

€5M start, 4.5% withdrawal, 30 years

Quellen & Studien

Swensen, David: “Pioneering Portfolio Management” (2000)
Ellis, Charles: “Winning the Loser’s Game” (2017)
Academic Studies on Portfolio Management

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Daniel Huber

Gründer & CEO von CANVENA | 215 Mio. USD Track Record

Your advantage after this article

What you now know — and how to use it

You know the core concepts and can apply them directly to your situation
You know which mistakes to avoid — saving you time and capital
You understand how this building block fits into your overall strategy

Your next step: Have your situation professionally assessed — free and non-binding in an initial consultation with Daniel Huber.

Sources & Further Reading

This article is based on a review of leading expert literature and curated primary sources from the CANVENA source matrix — more than 60 core books and 120 online resources across all relevant fields from capital intelligence, family office, strategy and valuation.