Why starting early matters so much
Compounding means your returns generate returns of their own. Over a few years the effect is modest. Over four decades it dominates everything else.
A useful illustration: someone who contributes steadily from twenty-five to thirty-five and then stops entirely often ends up with more at retirement than someone who starts at thirty-five and contributes continuously for thirty years. The first person contributed far less money but gave it far more time.
The practical conclusion is uncomfortable but simple. If you can only do one thing, start — even at a small amount. The size of the contribution can be fixed later; the years cannot be recovered.
Take the employer match first
Where an employer matches your retirement contributions, that match is part of your compensation. Not contributing enough to receive it in full is declining a portion of your salary.
Find out the exact terms: many schemes match up to a percentage of salary, sometimes at a rate above one to one. Contribute at least to that threshold before considering any other investment, because no other option offers a guaranteed immediate return of that size.
Check the vesting rules too — some employer contributions only become fully yours after a period of service, which is worth knowing before you resign.
Understand what you already have
Most people have more retirement provision than they realise, spread across sources they have never totalled.
There is usually a state pension, with an amount that depends on your contribution record and an age that has been rising in most countries. There may be workplace schemes from previous employers, sometimes forgotten entirely. And there are personal accounts you open yourself, which vary by country in their tax treatment.
Spend an afternoon finding all of them. Consolidating old workplace pensions can reduce fees and make the total legible, though it is worth checking whether any older scheme has guarantees that would be lost by transferring.
Keep the investments simple
The evidence here is unusually clear and unusually ignored. Low-cost, broadly diversified index funds outperform the large majority of actively managed alternatives over long periods, primarily because fees compound against you exactly as returns compound for you.
A difference of one percent in annual charges sounds trivial and is not. Over a full career it can consume a substantial share of the final balance.
For most people the sensible approach is a globally diversified fund, or a target-date fund that automatically shifts from growth assets towards more stable ones as retirement approaches. Neither requires you to have a view on markets, which is an advantage rather than a limitation.
Increase contributions with every raise
The easiest time to save more is the moment your income rises, because you have not yet adjusted to the higher figure.
A workable rule is to direct a portion of every raise — half is a reasonable default — straight into retirement contributions, and enjoy the rest. You get a real improvement in your standard of living and a real improvement in your retirement provision, and you never experience the increase as a sacrifice.
Some schemes automate this with annual escalation. If yours does, use it. If not, set a calendar reminder for whenever your salary review happens.
Do not interrupt it unnecessarily
The most damaging retirement decisions are not bad fund choices. They are withdrawals and pauses.
Cashing out a workplace pension when changing jobs is common and expensive — you lose the balance, the future compounding on it, and frequently pay a penalty. Transferring it instead preserves all three.
Selling during a market fall is the other major error. Falls are a normal feature of long-term investing, and the recovery typically happens faster than people expect. Someone who sells during a downturn converts a temporary paper decline into a permanent loss and usually returns to the market only after the recovery has happened.
If you are decades from retiring, a falling market is buying your future contributions at lower prices. It is genuinely not the emergency it feels like.
Work out roughly what you need
A precise number is impossible and unnecessary. A rough target is useful for knowing whether you are seriously off track.
A common starting estimate is that you will need somewhere around two-thirds to four-fifths of your pre-retirement income to maintain a similar standard of living, since some costs — commuting, mortgage, supporting children — often fall by then. Subtract whatever state pension you expect, and the remainder is what your own savings need to produce.
A widely used rule of thumb for how much capital that requires is to multiply the annual amount you need by around twenty-five. Treat it as a direction-finder, not a promise, and revisit it every few years.