The Power of Boosting 401(k) Contributions

Use this calculator to see how additional contributions to your 401(k) plan can add up over time.  Enter the additional monthly contribution and select your tax bracket, matching employer contribution and expected rate of return, and see how your additional contributions would grow--with and without the employer match.  A good rule of thumb for choosing a rate of return is that conservative investors will earn 8% annually, while aggressive investors will earn 11%.
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How Additional Contributions Affect Your Balance
Additional monthly contribution:
Your tax bracket:	10% 15% 25% 28% 33% 35%
Matching employer contribution:	No match 25% 33% 50% 100%
Expected annual rate of return:	6% 7% 8% 9% 10% 11% 12% 13% 14% 15%
Over a period of:	1 year 5 years 10 years 20 years 30 years
Extra contributions (pre-tax):
Cost after tax savings:
Total savings at end of period:
With employer match: