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When you contribute to your 401(k), many employers will match a portion of what you put in — effectively adding extra money to your retirement savings on top of your salary. It's one of the most valuable benefits a job can offer, yet millions of Americans leave it uncaptured every year by not contributing enough.
Think of it this way: if your employer offers a 100% match up to 3% of your salary, contributing that 3% gives you an instant 100% return on those dollars before your investments even grow. No index fund, no stock pick, nothing beats that.
Key Insight: Match formulas can sound confusing but they always follow the same pattern:
[Employer %] match on [your contributions] up to [X% of salary]Example: "50% match up to 6% of salary" means for every dollar you contribute (up to 6% of your pay), your employer puts in 50 cents. To get the full match, you must contribute the full 6%.
| Match Type | Salary | You Contribute | Employer Adds | Total in 401(k) |
|---|---|---|---|---|
| 100% match up to 3% | $80,000 | $2,400 (3%) | $2,400 | $4,800 |
| 50% match up to 6% | $80,000 | $4,800 (6%) | $2,400 | $7,200 |
| Dollar-for-dollar up to $5,000 | $80,000 | $5,000 | $5,000 | $10,000 |
Your own contributions are always 100% yours immediately. But employer contributions often come with a vesting schedule — meaning you only fully "own" that money after staying at the company for a set period.
| Year | Cliff (3-yr) | Graded (5-yr) | Immediate |
|---|---|---|---|
| Year 1 | 0% | 20% | 100% |
| Year 2 | 0% | 40% | 100% |
| Year 3 | 100% | 60% | 100% |
| Year 4 | 100% | 80% | 100% |
| Year 5 | 100% | 100% | 100% |
* Vesting schedules vary by employer. Check your plan documents or HR portal.
Common Mistake: If your employer has a 3-year cliff vesting schedule and you leave at year 2, you forfeit all employer contributions — even though you contributed your own money the entire time. Always factor vesting into job change decisions, especially if you're close to a vesting milestone.
Quick Summary
- Employer match is part of your compensation — always capture it fully
- Read your match formula: employer % × your contribution % × salary cap
- Your own contributions are always 100% yours immediately
- Employer contributions vest over time — cliff or graded schedule
- Leaving before fully vested means losing unvested employer money
- Factor vesting into job change timing decisions