Start with the match
An employer match is the highest-return item available to almost any American worker. A dollar-for-dollar match up to 4% of salary is a 100% instant return, before any market growth. On a $95,000 salary that is $3,800 a year — roughly $400,000 over a full career once compounded. Contributing less than the match threshold is the most expensive common financial mistake.
Contribution rate is the lever you control
You cannot control returns. You can control how much you put in. Raising the rate from 10% to 15% of a $95,000 salary is about $396 a month, and over 33 years at 7% it adds several hundred thousand dollars to the outcome. The practical trick is to raise the rate by one percentage point every time you get a raise — the increase never hits your take-home pay, so it does not feel like a sacrifice.
Vesting: the match is not always yours yet
Employer contributions often vest on a schedule — cliff vesting after three years, or graded vesting over five or six. Your own contributions are always 100% yours. Check your vesting schedule before changing jobs; leaving three months before a cliff can forfeit a meaningful sum.
What the 4% rule really says
The rule estimates a sustainable withdrawal, not a guarantee. It was derived from historical US market data over rolling 30-year periods and assumes a diversified stock-and-bond portfolio. Retiring into a severe downturn — a sequence-of-returns problem — is the main failure mode, and the standard defences are keeping two to three years of expenses in cash, and being willing to trim withdrawals in bad years.
Do not forget Social Security and healthcare
For most US households Social Security replaces a meaningful share of pre-retirement income, so a portfolio does not need to cover everything. Working against that, healthcare costs before Medicare eligibility at 65 are the single largest budget item for early retirees. Both belong in a full plan alongside the portfolio number above.
Order of operations
- 401(k) up to the full employer match.
- High-interest debt above roughly 8%.
- Emergency fund of three to six months of expenses.
- Max out an HSA if you have a qualifying plan — triple tax advantaged.
- Roth or traditional IRA, then back to the 401(k) up to the annual limit.
- Taxable brokerage for anything beyond that.