Wednesday, September 9, 2026

The 25× Retirement Rule Explained — and Its Limitations

The 25× Retirement Rule Explained: How Much Do You Really Need to Retire?

How much money do you actually need to retire?

RM1 million?

RM2 million?

Or perhaps a completely different amount?

There is no single retirement number that works for everyone. Your required savings depend heavily on your lifestyle, expenses, retirement age, housing situation, healthcare needs, other income sources and how your savings are invested.

One popular framework that can provide a starting point is the 25× retirement rule.

The concept is simple:

Estimated retirement portfolio = Annual retirement spending × 25

But the simplicity of the formula can also be misleading.

The 25× figure is not a guarantee, and it should not be treated as a universal retirement target. It is a rule of thumb based on assumptions about withdrawal rates, investment returns and retirement duration.

Understanding those assumptions is more important than memorising the number 25.

This article is for general educational purposes only and does not constitute financial, investment, tax, legal or retirement-planning advice.

Where Does the 25× Rule Come From?

The 25× rule is closely associated with the 4% withdrawal rule.

The basic mathematical relationship is:

100 ÷ 4 = 25

If a person plans to withdraw approximately 4% of an initial retirement portfolio during the first year of retirement, then a portfolio equivalent to approximately 25 times annual spending would produce that initial withdrawal amount.

For example:

RM40,000 × 25 = RM1,000,000

Under this framework, someone spending RM40,000 per year might use RM1 million as an initial reference point.

However, this does not mean RM1 million guarantees retirement security.

How to Calculate Your 25× Number

Start with your estimated annual retirement spending.

For example:

Monthly Retirement Spending Annual Spending 25× Target
RM3,000 RM36,000 RM900,000
RM4,000 RM48,000 RM1,200,000
RM5,000 RM60,000 RM1,500,000
RM7,000 RM84,000 RM2,100,000

These figures are illustrative and assume the annual spending amount is already expressed in the purchasing power relevant to the start of retirement.

But What If You Have EPF?

This is where the calculation becomes more interesting for many Malaysians.

Retirement resources do not necessarily come from one investment portfolio.

A person's retirement resources could potentially include:

  • EPF savings.
  • Personal investments.
  • Rental income.
  • Other retirement income.
  • Cash savings.
  • Part-time or business income.

Therefore, the 25× figure should not automatically be interpreted as the amount of money that must sit in a personal investment account.

For example, suppose someone estimates retirement spending of RM60,000 per year.

The simple 25× calculation gives:

RM60,000 × 25 = RM1.5 million

However, if the person expects RM20,000 per year from another reliable source of retirement income, the amount that needs to be funded from the portfolio could be different.

The important question becomes:

"How much of my retirement spending needs to be funded by my savings and investments?"

Inflation Can Change the Number Dramatically

One of the biggest limitations of using a fixed retirement number is inflation.

Suppose your current lifestyle costs RM4,000 per month.

That is RM48,000 per year today.

If prices rise over the next 20 or 30 years, RM48,000 may not provide the same purchasing power.

For example, assuming an illustrative 3% annual inflation rate:

Years RM4,000 Monthly Spending in Future
10 years ≈ RM5,376
20 years ≈ RM7,224
30 years ≈ RM9,709

These are mathematical illustrations rather than forecasts.

This demonstrates why someone who is 30 today shouldn't simply calculate 25 × today's annual spending and assume that number will remain sufficient decades later.

Your Retirement Number Depends on Your Lifestyle

Two people of the same age can require very different retirement portfolios.

Consider:

Person A Person B
Housing Mortgage-free home Renting
Travel Occasional Frequent international travel
Healthcare Comprehensive coverage Limited coverage
Retirement Lifestyle Moderate Higher spending

Their retirement targets could therefore be very different even if they retire at the same age.

Healthcare Is One of the Biggest Unknowns

Healthcare expenses are particularly difficult to predict.

Medical costs may increase over time, and healthcare needs can change significantly with age.

Retirement planning therefore shouldn't focus only on everyday expenses such as food, utilities and entertainment.

It may also be worth considering:

  • Medical insurance premiums.
  • Out-of-pocket medical expenses.
  • Dental care.
  • Long-term care requirements.
  • Support for ageing family members.

What If You Retire Earlier?

The 25× framework becomes more uncertain when the retirement period becomes longer.

Someone retiring at 60 may need to fund potentially several decades of expenses.

Someone retiring at 45 may need to support themselves for considerably longer.

The longer the retirement period, the more important factors such as investment returns, inflation, withdrawal rates and sequence of returns become.

The 4% Rule Is Not a Guarantee

This is perhaps the most important limitation to understand.

The 4% withdrawal concept comes from historical research and specific assumptions about investment portfolios, market behaviour and retirement periods.

Actual future markets may behave differently.

A portfolio can experience:

  • Periods of significant market declines.
  • Lower-than-expected returns.
  • Higher inflation.
  • Unexpected expenses.
  • Longer retirement periods.

Therefore, the 25× rule should be treated as a starting framework rather than a guaranteed formula for retirement success.

A More Useful Way to Think About Your Retirement Number

Instead of asking:

"Do I have 25 times my annual expenses?"

consider asking:

  1. How much will I realistically spend each year in retirement?
  2. How might inflation affect those expenses?
  3. How much income could come from EPF or other sources?
  4. Will I still have housing costs?
  5. How much should I allocate for healthcare?
  6. How long might my retirement last?
  7. How much investment risk am I prepared to accept?

These questions provide much more context than a single retirement number.

Finance with Alex Case Study

Scenario

David is 40 years old and expects to retire around age 60.

He estimates that his retirement lifestyle will require approximately RM5,000 per month in today's purchasing power.

His current annual spending estimate is therefore:

RM5,000 × 12 = RM60,000

Using the simple 25× framework:

RM60,000 × 25 = RM1.5 million

However, David shouldn't immediately conclude that RM1.5 million is his final retirement target.

He may also need to consider:

  • Inflation over the next 20 years.
  • His projected EPF balance.
  • Other investment assets.
  • Healthcare expenses.
  • Whether his home will be fully paid off.
  • Whether he expects any other retirement income.
  • How long his retirement may last.

The 25× calculation therefore becomes a starting point for deeper planning rather than the final answer.

This scenario is hypothetical and provided solely for educational purposes.

Related Reading

Final Thoughts

The 25× retirement rule is useful because it turns a vague question into a number that can be used as a starting point.

But retirement planning is far more complicated than multiplying annual expenses by 25.

Inflation, healthcare costs, investment returns, retirement duration, housing expenses, EPF savings and other income sources can all materially affect the amount someone may need.

Instead of treating 25× as a finish line, think of it as a financial planning checkpoint.

The more important question isn't simply:

"How much money do I need?"

It is:

"What kind of retirement do I want, and how will I pay for it?"

Starting that calculation early gives you more time to adjust your savings rate, investment strategy and retirement expectations as circumstances change.

Disclaimer: This article is for general educational purposes only and should not be considered financial, investment, tax, retirement or professional advice. The 25× and 4% concepts are general financial planning frameworks and are not guarantees of investment performance or retirement outcomes. Actual results will vary depending on investment returns, inflation, fees, taxes, spending patterns, longevity and individual circumstances.

The 25× Retirement Rule Explained — and Its Limitations

The 25× Retirement Rule Explained: How Much Do You Really Need to Retire? How much money do you actually need to retire? RM1 million? ...