A common starting answer is the 25x rule: aim to save roughly 25 times the amount you expect to spend each year in retirement. That figure pairs with the 4 percent guideline, the idea that withdrawing about 4 percent of your savings in the first year — adjusted for inflation after that — has historically had a reasonable chance of lasting a long retirement. Neither is a precise law, and your real number depends on your spending, other income, and how long you live. Treat these as planning anchors, not guarantees. This is general educational information, not personalized financial or tax advice.
Start with spending, not salary
The single most useful step is estimating what you will actually spend in retirement, because that drives everything else. Many costs shift — commuting and work expenses fall, while healthcare and leisure may rise. A rough method:
- Estimate your annual retirement spending. Some planners use a percentage of current income as a placeholder, but your own budget is better.
- Subtract other income. Pensions and government benefits cover part of that spending, reducing what your savings must produce.
- Multiply the remaining gap by about 25. That is a ballpark for the savings you need to generate.
The number you get is a target to work toward over decades, not a figure you need today.
How the rules of thumb fit together
| Rule |
What it says |
What to remember |
| 25x rule |
Save about 25 times annual spending |
Based on the 4 percent guideline |
| 4 percent guideline |
Withdraw about 4 percent year one |
Historical, not guaranteed |
| Spending estimate |
Plan around real costs |
Healthcare can be larger than expected |
| Other income |
Subtract pensions and benefits |
Lowers the pile you must save |
These tools are linked: 25 times spending is just the inverse of withdrawing 4 percent. They give you a starting frame, then you refine it.
What changes your number
- Inflation. Prices rise over decades, so a fixed amount buys less later. Good plans account for this.
- Lifespan. Planning for a long retirement is safer than assuming an average one; running out of money is the real risk.
- Taxes. Withdrawals from different account types are taxed differently, which affects how much you truly net. See the best retirement accounts explained.
- Investment returns and sequence. A bad market early in retirement hurts more than the same drop later, which is why fixed rules are only a starting point.
Because of these variables, the honest answer is a range, refined with your own numbers and ideally a professional.
How to get there
The earlier you start, the more compounding does the heavy lifting. Practical moves:
- Contribute consistently to tax-advantaged retirement accounts, and capture any employer match first.
- Invest broadly and cheaply rather than chasing individual picks; see what index funds are.
- Increase contributions as income rises instead of inflating spending to match every raise.
- Revisit the plan periodically as your spending estimate and life change.
What to skip
- Treating 25x or 4 percent as exact. They are rough guides built on historical data, not promises about your future.
- Ignoring inflation and taxes. A plan that omits them overstates how far your savings will stretch.
- Assuming a short retirement. Planning for longevity protects you from the worst outcome.
- Waiting to start because the number feels huge. Small, early contributions matter more than a perfect plan.
FAQ
Is the 4 percent rule still valid in 2026?
It remains a widely used planning anchor, but researchers debate the exact safe rate, and it depends on your portfolio and timeline. Use it as a starting point, not a guarantee.
Does the 25x figure include other income?
You generally apply 25x to the spending your savings must cover after subtracting pensions and benefits, so other income lowers the target.
What if I am starting late?
Increasing contributions, delaying retirement, and trimming planned spending all help. Even a late start beats no start, thanks to continued compounding.
Should I count on government benefits?
Many people include them while staying conservative about the amount. This is general information, so confirm your own benefits and situation with a professional.
Where to go next
Explore the best retirement accounts explained, learn what index funds are, and see how to retire early.